City University of Hong Kong

The Hong Kong Special Administrative Region of the People's Republic of China

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        Patent 809
        Trademark 32
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        United States 813
        Europe 22
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New (last 4 weeks) 6
2025 July 5
2025 June 14
2025 May 11
2025 April 12
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IPC Class
H01Q 9/04 - Resonant antennas 45
A61B 5/00 - Measuring for diagnostic purposes Identification of persons 26
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer 18
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys 16
B33Y 10/00 - Processes of additive manufacturing 15
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NICE Class
41 - Education, entertainment, sporting and cultural services 26
42 - Scientific, technological and industrial services, research and design 25
35 - Advertising and business services 2
09 - Scientific and electric apparatus and instruments 1
36 - Financial, insurance and real estate services 1
Status
Pending 245
Registered / In Force 596
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1.

METHOD AND SYSTEM FOR ADAPTIVE CORNER DETECTION USING DYNAMIC VISION SENSORS

      
Application Number 18429325
Status Pending
Filing Date 2024-01-31
First Publication Date 2025-07-31
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Basu, Arindam
  • Sun, Pao-Sheng Vincent

Abstract

A method for adaptive corner detection is provided. The method includes: obtaining one or more event data from a dynamic vision sensor; capturing and organizing a plurality of recorded events of the event data into a 2D array; transforming the 2D array into one or a plurality of Ordered Surface (OS) matrices by populating one or a plurality of empty Image Matrices with the recorded events based on their coordinates and assigning order values; and applying a corner detector to the OS matrices. A system for adaptive corner detection is also provided.

IPC Classes  ?

  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
  • G06V 10/88 - Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters

2.

ULTRA-BROADBAND LOOP ANTENNA FOR WIRELESS COMMUNICATION AND ENERGY TRANSCEIVER

      
Application Number 18409986
Status Pending
Filing Date 2024-01-11
First Publication Date 2025-07-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wong, Hang
  • Xiao, Bing

Abstract

A loop antenna, which contains a loop portion that extends along a virtual closed shape. The loop portion is opened-ended and have two ends that are separated by a gap. The loop antenna further includes a first equivalent capacitive coupling element (eCCE) that is at least partially adjacent to the gap. The first eCCE is connected to the loop portion near the gap. The loop antenna supports functionalities of mobile electronic devices in wireless communication and wireless energy transceiving in multiple or ultra-broad frequency bands.

IPC Classes  ?

  • H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
  • H04B 5/22 - Capacitive coupling

3.

ELECTROCONDUCTIVE MICRONEEDLE FOR DRUG DELIVERY INTO DEEP TISSUE

      
Application Number 19019510
Status Pending
Filing Date 2025-01-14
First Publication Date 2025-07-17
Owner
  • The University of Hong Kong (Hong Kong)
  • City University of Hong Kong (Hong Kong)
Inventor
  • Qiao, Wei
  • Neelakantan, Prasanna
  • Ghosh, Sumanta
  • Xu, Chenjie

Abstract

The present invention relates to a novel microneedle platform for minimally invasive delivery of therapeutic agents and the modulation of the neuro-immune axis in deep tissue. The present invention also adopts an innovative approach for minimally invasive and precisely controllable treatment of deep cutaneous diseases, conditions, and disorders using said electroconductive MN patch, which has the potential to benefit millions of patients worldwide.

IPC Classes  ?

  • A61M 37/00 - Other apparatus for introducing media into the bodyPercutany, i.e. introducing medicines into the body by diffusion through the skin

4.

RECONFIGURABLE QUADROTOR WITH CONTROLLED ROLLING AND TURNING

      
Application Number 18406061
Status Pending
Filing Date 2024-01-05
First Publication Date 2025-07-10
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Jia, Huaiyuan
  • Chirarattananon, Pakpong
  • Bai, Songnan
  • Ding, Runze

Abstract

A quadrotor is proposed than can both fly and roll. The proposed robot employs passively reconfigurable structures to enable the rolling, tightly coupling the attitude of the robot to the rolling cage. The benefits are precise rolling and turning control as well as improved rolling efficiency. The passively reconfigurable structures are enabled by pre-stretched elastic springs to generate a nonlinear restoring torque. The robot leveraged the superior maneuverability in the rolling mode to take photos of the surroundings at different tilting and panning angles to construct a panoramic image. Besides, the results of the power measurements show a significant reduction in the cost of transport brought by at low speed, equating to a 15-fold extension in the operational range.

IPC Classes  ?

  • B64U 10/14 - Flying platforms with four distinct rotor axes, e.g. quadcopters
  • B64U 30/293 - Foldable or collapsible rotors or rotor supports
  • B64U 60/60 - Undercarriages with rolling cages
  • B64U 101/00 - UAVs specially adapted for particular uses or applications

5.

A 4D-PRINTED HUMIDITY AND MAGNETIC DUAL RESPONSIVE ACTUATOR

      
Application Number 18399594
Status Pending
Filing Date 2023-12-28
First Publication Date 2025-07-03
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lu, Jian
  • He, Yunhu
  • Mao, Zhengyi
  • Han, Yicheng

Abstract

The present invention provides a 4D-printed humidity and magnetic dual responsive actuator with a bilayer structure, including a hydrogel film and a numerous of magnetic elastomer filaments, the numerous of magnetic elastomer filaments are printed on the hydrogel film to formed the bilayer structure, wherein the magnetic elastomer filaments are elastomer filaments embedded with magnetic particles, and the dual responsive actuator capable of responding to both humidity and magnetic fields, resulting in a reversible deformation that transforms into helix structures. The printed actuators can initially deform into helix structures in response to humidity stimuli and rapidly contract to a smaller size with the activation of a magnetic field. The shape deformation of this dual-responsive actuator is programmable and reversible, with stable and excellent repeatability.

IPC Classes  ?

  • A61B 34/30 - Surgical robots
  • B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing

6.

AQUEOUS ZINC-ION BATTERY WITH STABLE PERFORMANCE DURING OVERCHARGING

      
Application Number 18399743
Status Pending
Filing Date 2023-12-29
First Publication Date 2025-07-03
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Yang, Shuo

Abstract

The present invention provides bromine-based additives for overcharge protection in aqueous zinc-ion batteries. These additives undergo oxidation before electrolyte decomposition during overcharging, effectively preventing overcharge. As a result, the batteries demonstrate significantly extended lifespans and maintain stable electrolyte environments. The overcharge protection is effective for more than 650 hours in Zn∥MnO2 batteries and 500 hours in Zn∥MnVO batteries.

IPC Classes  ?

  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 4/50 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
  • H01M 10/36 - Accumulators not provided for in groups
  • H01M 10/44 - Methods for charging or discharging

7.

CityU Hong Kong Institute of Al for Science City University of Hong Kong

      
Application Number 019208945
Status Pending
Filing Date 2025-06-27
Owner City University of Hong Kong (Hong Kong)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 35 - Advertising and business services
  • 36 - Financial, insurance and real estate services
  • 41 - Education, entertainment, sporting and cultural services
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Downloadable electronic publications; downloadable computer software; recorded or downloadable computer software platforms; application software for mobile phones, smart phones, handheld computers, tablet computers and smartwatches; downloadable image, music and video files; portable media player; accessories and cases for laptop computers, tablet computers and computers; telephone and mobile phone accessories; cases and covers for mobile phones; computer peripheral devices; USB (universal serial bus) devices; scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable media, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers; diving suits, divers' masks, ear plugs for divers, nose clips for divers and swimmers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus; multimedia programs and software; computer hardware and software; computer programs; software applications (downloadable); mobile applications; downloadable application for mobile phones, tablet computers, computers, wearable devices and digital electronic devices; computer software for virtual reality; computer interfaces for metaverse; downloadable files authenticated by non-fungible tokens [NFTs]; artificial intelligence (AI) software; artificial intelligence based software for material discovery, drug discovery and biomanufacturing; artificial intelligence apparatus; downloadable computer programs and computer software for processing, generating, understanding and analyzing natural language using artificial intelligence; downloadable computer programs and computer software for machine learning. Advertising; business management; business administration; business advisory services; business incubation services; providing business acceleration services; business advisory, business consultancy and business incubation in the fields of artificial intelligence, deep technology, science and technology; business consultancy for start-up companies and entrepreneurs; business consultancy and advisory services in respect of pitching, technology transfer, commercialisation of innovative ideas and establishment of start-ups; business assistance services in relation to the promotion of university-industry collaboration; business analysis; providing business information; business planning services; business management assistance; business development services; business matching service; business consultation services; business intermediary services relating to the matching of potential private investors with entrepreneurs needing funding; providing business referral services via a global computer network; negotiation and conclusion of commercial transactions for third parties; providing commercial and business contact information; promotional, marketing and publicity services; arranging and conducting exhibitions and trade fairs for business and advertising purposes; arranging and conducting of meetings and forums for business and advertising purposes; organization of competitions for business and advertising purposes; commercial administration of the licensing of the goods and services of others; providing an online marketplace for buyers and sellers of blockchain-based non-fungible assets and non-fungible tokens (NFTs); sponsorship search; office functions; information, consultancy, and advisory services relating to the aforesaid services. Financial services; financial services for securing funds for others; financing services; investment services; administration of capital investment services; administration of fund investment; fund investment services; venture capital services; venture capital financing; venture capital funding; venture capital funding services for research institutions; venture capital funding services for companies; venture capital fund management; venture capital financing services for emerging and start-up companies; financing and providing funds to start-up companies; financial sponsorship services; provision of financial advice to businesses; insurance; monetary affairs; real estate affairs; rental and leasing of office space and premises; rental of offices, apartments, flats and buildings; rental of student housing; leasing of university housing and residential facilities; real estate and property management; financial analysis; financial research; financial information and consultancy; charitable fund raising; financial transaction services involving cryptocurrency, non-fungible tokens (NFTs) and blockchain technology; virtual and digital currency trading services; funds investment management, advisory and consulting services in the field of artificial intelligence technology transfer, corporate structuring and financing; artificial intelligence based financial analysis services; artificial intelligence based investment risk assessment services; information, consultancy, and advisory services relating to the aforesaid services. Education; providing of training; conducting of educational programmes, workshops and training in relation to innovation, entrepreneurship, venture creation, start-ups, business management and business development; arranging and conducting educational forums and seminars for the purpose of facilitating transfer and exchange of knowledge; transfer of business knowledge and know-how [training]; university education services; academic education services; education services relating to undergraduate, postgraduate, vocational education and training courses; education in the field of science, technology and engineering; college education; technical institutes education; instruction and training services; providing and organizing student exchange programs for educational purposes; providing online learning services; computer-based education services; conducting distance learning instruction over computer networks; library services; arranging and conducting of seminars and workshops; arranging and conducting of conventions and exhibitions for cultural and educational purposes; arranging and conducting of conferences, congresses and symposiums; arranging and conducting of educational forums; career counselling; arranging and conducting of educational courses, training workshops and practical training; arranging and conducting of educational examinations; examination and educational assessment services; postgraduate training services; providing educational courses relating to research and development; provision of correspondence courses; teaching and training services; providing facilities for educational and training purposes; business training provided through a simulation structure; advisory and information services in the fields of education and training provided on-line from a computer database or the Internet; professional consultancy services in the field of university education; providing assistance to students in admission to universities, tertiary education institutes and colleges; publication of texts, books, periodicals, printed matter, photographs, magazines, instructional materials, teaching materials and educational materials; publication of teaching materials and educational materials in electronic form; providing on-line electronic publications (not downloadable); production of radio and television programmes; production of films, video films, video and audio recordings; radio and television entertainment; organization of competition for educational and training purposes; entertainment; arranging, conducting and organizing sports and cultural activities; information, advisory and consultancy in relation to the aforesaid services. Scientific and technological services and research and design relating thereto; industrial analysis and research services; research and development (for others); research and development in the field of artificial intelligence; development of new technology for others; scientific and technological research in the fields of artificial intelligence, deep technology, innovative technology, science, engineering and agriculture; advisory services relating to science, engineering and technology; technology consultation in the field of artificial intelligence; engineering; providing information in relation to science, engineering and technology; information technology [IT] support services [troubleshooting of software]; computer services relating to compiling and processing of computerized data; computerised analysis of scientific data; data decryption services; development of computer systems for processing of data; research relating to data processing; design and development of computer hardware and software; updating of computer software; hosting computer websites; creating and maintaining web sites for others; monitoring of computer systems by remote access; rental of computer software and web servers; surveying; technical research; scientific laboratory services; Artificial Intelligence as a service [AIaaS]; design and development of artificial intelligence software in the field of material discovery, drug discovery and biomanufacturing; providing online non-downloadable artificial intelligence software for use in the field of material discovery, drug discovery and biomanufacturing; material testing; drug development; laboratory services for biomanufacturing; information, advisory and consultancy in relation to the aforesaid services.

8.

METHODS OF PREPARING A CATALYST AND AN ELECTROLYTIC CELL FOR USE IN SYNTHESISING AMMONIA, AND METHODS OF SYNTHESISING AMMONIA

      
Application Number 18392399
Status Pending
Filing Date 2023-12-21
First Publication Date 2025-06-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ho, Johnny Chung Yin
  • Yin, Di
  • Chen, Dong
  • Quan, Quan

Abstract

One aspect of the present invention is concerned with a method of preparing a catalyst for use in synthesizing ammonia from nitrate. The method has the steps of i) providing a nickel foam material, ii) removing an oxide layer on the nickel foam material, iii) subjecting the nickel foam material to cooper sulphate (Cu2SO4) solution for a predetermined period of time for forming a copper (Cu) dopped nickel foam electrode, and iv) subjecting the Cu dopped nickel foam electrode to an annealing treatment at a predetermined temperature for a predetermined period of annealing time in atmospheric air thus forming a catalyst of copper oxide-nickel oxide nickel foam (CuO/NiO@NF) with a heterostructure. Other aspects of the invention are concerned with a method of preparing an electrolytic cell for use in synthesizing of ammonia, and a method of synthesis of ammonia from nitrate.

IPC Classes  ?

  • C25B 11/073 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material
  • C25B 1/27 - Ammonia
  • C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
  • C25B 11/042 - Electrodes formed of a single material
  • C25B 13/08 - DiaphragmsSpacing elements characterised by the material based on organic materials
  • C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

9.

IMAGE QUALITY ASSESSMENT BASED ON FLEXIBLE REFERENCE

      
Application Number 18395527
Status Pending
Filing Date 2023-12-23
First Publication Date 2025-06-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Wang, Shiqi
  • Tian, Yu
  • Chen, Baoliang

Abstract

A novel FR-IQA paradigm involving a flexible reference selection is proposed. It dedicates to generating the reference feature by finding the best explanation of the distorted feature among an equal-quality space constructed based on a given pristine feature. Without the ground-truth reference for distorted images with various distortion types, the quality regression loss, the disturbance maximization loss and the content loss are employed to optimize the pseudo-reference feature learning. Experimental results on five IQA benchmark databases demonstrate that combining the FLRE with the existing deep feature-based FR-IQA models can gain performance improvement.

IPC Classes  ?

  • G06T 7/00 - Image analysis
  • G06V 10/40 - Extraction of image or video features
  • G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
  • G06V 10/776 - ValidationPerformance evaluation
  • G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks

10.

METHOD FOR PREPARING GAMMA-BUTYROLACTONE

      
Application Number 18788750
Status Pending
Filing Date 2024-07-30
First Publication Date 2025-06-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lam, Chun Ho
  • Liu, Shengqin
  • Jin, Yangxin
  • Zhu, Qi
  • Shao, Shan

Abstract

A method for preparing gamma-butyrolactone including converting furoic acid to the gamma-butyrolactone in an undivided cell without a mediator for paired electrolysis, including the steps of: a) electrochemically oxidizing the furoic acid to 2(5H)-furanone; and b) electrochemically reducing the 2(5H)-furanone to the gamma-butyrolactone.

IPC Classes  ?

  • C25B 3/07 - Oxygen containing compounds
  • C07D 307/33 - Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
  • C25B 3/05 - Heterocyclic compounds
  • C25B 3/23 - Oxidation
  • C25B 3/25 - Reduction
  • C25B 9/17 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof

11.

PHASE CHANGE MATERIAL-BASED METASURFACE STRUCTURE AND RELATED METHOD

      
Application Number 18543000
Status Pending
Filing Date 2023-12-18
First Publication Date 2025-06-19
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Lei, Dangyuan
  • Fan, Yulong
  • Liao, Yuan

Abstract

A metasurface structure including an array of sub-wavelength structures including a phase change material (PCM), encoded with different holographic images based on different phases of the PCM, the different phases including a first phase and a second phase. Phase transition between the first phase and the second phase occurs when the metasurface structure is thermally tuned. Each sub-wavelength structure in the array has a distinctive phase difference between the first phase and the second phase of the PCM.

IPC Classes  ?

  • G03H 1/26 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique
  • G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements
  • G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details

12.

CYCLIC TITANIUM OXIDE NANOCLUSTER COMPOSITION AND DEVICE WITH SAME

      
Application Number 18543653
Status Pending
Filing Date 2023-12-18
First Publication Date 2025-06-19
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Jen, Alex Kwan Yue
  • Li, Fengzhu
  • Zhao, Chaowei

Abstract

A cyclic titanium-oxide cluster (CTOC)-based composition of Formula Ti32O16(OCH2CH2O)32(R1COO)x(ArCOO)16-x(R2O)16 (Formula I).

IPC Classes  ?

  • C07F 7/28 - Titanium compounds
  • B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
  • H10K 50/16 - Electron transporting layers
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 85/30 - Coordination compounds
  • H10K 85/50 - Organic perovskitesHybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3

13.

ADSORBENT, ITS PREPARATION AND USE

      
Application Number 18534934
Status Pending
Filing Date 2023-12-11
First Publication Date 2025-06-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Shang, Jin
  • Tao, Zeyu

Abstract

An adsorbent for passive NOx adsorption includes a small pore zeolite having an eight-ring framework structure and a non-noble metal ion doped in the framework structure. An exhaustion system comprising the adsorbent and a method for preparing the adsorbent are also addressed.

IPC Classes  ?

  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01D 53/94 - Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
  • F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
  • F01N 3/28 - Construction of catalytic reactors

14.

ORGANOBORON COMPOUND, ITS PREPARATION AND USE

      
Application Number 18788711
Status Pending
Filing Date 2024-07-30
First Publication Date 2025-06-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lu, Zhenpin
  • Li, Haokun

Abstract

An organoboron compound for reductive synthesis includes a structure of Formula (I). A method for preparing the organoboron compound includes providing a first precursor having a structure of Formula (IV), with R1 and R2 each being the mono-, di or tri substitution, and converting the first precursor into the organoboron compound.

IPC Classes  ?

15.

3D/4D ADDITIVE-SUBTRACTIVE MANUFACTURING OF CERAMIC/GLASS COMPONENTS IN 3C PRODUCTS

      
Application Number 18633494
Status Pending
Filing Date 2024-04-11
First Publication Date 2025-06-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lu, Jian
  • Liu, Guo
  • Zhou, Zhifeng
  • Zhang, Xiaofeng
  • Lu, Xinya

Abstract

The invention provides a ceramic material or glass material and a manufacturing method thereof. The manufacturing method includes the following steps: preparing a precursor of a ceramic material or a glass material; processing the precursor using a high-energy beam to obtain a processed precursor; and converting the processed precursor into a ceramic material or a glass material. The ceramic material or glass material provided by the present invention is manufactured by this manufacturing method. The present invention uses additive manufacturing technology such as 2D/3D/4D printing combined with subtractive manufacturing technology to manufacture ceramic components or glass components in 3C products. The ceramic material or glass material of the present invention has high resolution and complex shape.

IPC Classes  ?

  • C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
  • B28B 1/00 - Producing shaped articles from the material
  • C04B 35/571 - Fine ceramics obtained from polymer precursors
  • G03B 17/56 - Accessories
  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details

16.

THERMAL STABLE, ONE-DIMENSIONAL HEXAGONAL-PHASE VANADIUM SULFIDE NANOWIRES AND METHODS FOR PREPARING THE SAME

      
Application Number 18523934
Status Pending
Filing Date 2023-11-30
First Publication Date 2025-06-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhang, Hua
  • Ren, Yi

Abstract

The present invention provides a general salt-assisted chemical vapor deposition (SA-CVD) synthetic method for the high-yield preparation of 1D hexagonal-phase MxV6S8(M=K, Rb, Cs) and KxV6SySe8-y nanowires. The resulting nanowires exhibit typical metallic properties, which can be used as a good van der Waals contact for achieving high-performance fermi level pinning free transistors. The present synthesis method allows a more systematic investigation of the intrinsic properties of hexagonal-phase V6S8 structures.

IPC Classes  ?

  • C30B 25/00 - Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour deposition growth
  • B82Y 40/00 - Manufacture or treatment of nanostructures
  • C30B 29/46 - Sulfur-, selenium- or tellurium-containing compounds
  • C30B 29/62 - Whiskers or needles

17.

MAGNETIC IMPACT NEEDLE ROBOT

      
Application Number 18524268
Status Pending
Filing Date 2023-11-30
First Publication Date 2025-06-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Xiang, Yuxuan
  • Zhang, Jiachen

Abstract

A tetherless magnetic impact needle robot (MINRob) based on a triple-magnet system with reversible and repeatable magnetic collisions to overcome this constraint on output force. The working procedure of the system is divided into several states, and a mathematical model is developed to predict and optimize the force output. These force values in magnetic impact and penetration are obtained from a customized setup, indicating a 10-fold increase compared with existing miniature robots that only utilize magnetic attractive force. Eventually, the MINRob is integrated with a teleoperation system, enabling remote and precise control of the robot's position and orientation. The triple-magnet system offers promising locomotion patterns and penetration capacity via the notably increased force output, showing great potential in robot-assisted tissue penetration in minimally invasive healthcare.

IPC Classes  ?

  • A61B 34/00 - Computer-aided surgeryManipulators or robots specially adapted for use in surgery
  • A61B 34/30 - Surgical robots
  • A61B 90/11 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
  • B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements

18.

3D LIQUID DIODE AND PERMEABLE ELECTRONIC DEVICES BASED ON THE SAME

      
Application Number 18525903
Status Pending
Filing Date 2023-12-01
First Publication Date 2025-06-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yu, Xinge
  • Zhang, Binbin
  • Li, Jiyu
  • Zhou, Jingkun

Abstract

The present invention provides a three-dimensional liquid diode comprising: a vertical liquid diode layer, a horizontal liquid diode layer disposed above the vertical liquid diode layer, and a liquid collector disposed between the horizontal liquid diode layer and the vertical liquid diode layer. The vertical liquid diode layer comprises: a top surface; a bottom surface; and a plurality of channels, each extending from the top surface to the bottom surface with a vertical hydrophilicity gradient. The horizontal liquid diode layer comprises: an upper surface; a lower surface; a plurality of microstructures distributed on the lower surface with a horizontal structural gradient and configured to couple with the plurality of channels of the vertical liquid diode layer; and a plurality of outlets evenly distributed around the plurality of microstructures, and extending from the upper surface to the lower surface. The liquid collector is coupled to the plurality of outlets.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes Identification of persons
  • A41D 1/00 - Garments
  • A61B 5/256 - Wearable electrodes, e.g. having straps or bands

19.

SIMULTANEOUS SALT REJECTION AND HEAT LOCALIZATION VIA ENGINEERING WICK STRUCTURE AND MACROCHANNELS IN 3D EVAPORATOR AND MANUFACTURING METHOD THEREFOR

      
Application Number 18525917
Status Pending
Filing Date 2023-12-01
First Publication Date 2025-06-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lu, Jian
  • Mao, Zhengyi
  • Han, Yicheng
  • Chen, Yingxian
  • Li, Lanxi

Abstract

The present invention provides a high-efficiency buoyancy-driven convection-based 3D solar evaporator designed for the simultaneous rejection of salt and stable evaporation of high salinity water. The product combines different strategies, including engineered wick structure, low tortuosity macrochannels and edge-preferential salt crystallization. As a result, this evaporator demonstrates a stable evaporation rate of at least 2.5 kg m−2 h−1 under solar irradiance of 1 kW m−2 with sea water or salt solution of salinity of over 8 wt %.

IPC Classes  ?

  • C02F 1/14 - Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
  • B01D 1/00 - Evaporating
  • C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
  • C02F 103/08 - Seawater, e.g. for desalination
  • F24S 10/80 - Solar heat collectors using working fluids comprising porous material or permeable masses directly contacting the working fluids

20.

SELF-POWERED ELECTROACUPUNCTURE NEEDLES AND APPLICATIONS THEREOF

      
Application Number 18919442
Status Pending
Filing Date 2024-10-18
First Publication Date 2025-06-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Hu, Jinlian
  • Iqbal, Saira

Abstract

A self-powered electroacupuncture needle is provided, including a conductive needle and a triboelectric nanogenerator (TENG) coating on at least a portion of the needle. The TENG includes a triboelectric layer configured to accept electrons and an electron-providing layer configured to donate electrons. The TENG is positioned with the triboelectric layer in contact with the needle, such that when compressed, electron transfer occurs between the layers, generating a therapeutic alternating current with a frequency range of 0.1-10 Hz in the needle, facilitating the delivery of electroacupuncture treatment.

IPC Classes  ?

  • A61H 39/00 - Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
  • A61H 39/08 - Devices for applying needles to such points, i.e. for acupuncture

21.

CONJUGATES, AND USES THEREOF

      
Application Number 18963702
Status Pending
Filing Date 2024-11-28
First Publication Date 2025-05-29
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Kwok, Chun Kit
  • Zhang, Kun

Abstract

Disclosed herein is a conjugate comprising a targeting moiety and a proteolytic moiety. According to some embodiments of the present disclosure, the targeting moiety comprises the nucleic acid of SEQ ID NO: 1, and a first conjugating group; and the proteolytic moiety comprises a ligand of E3 ubiquitin ligase, and a second conjugating group. The targeting moiety is linked to the proteolytic moiety via a click reaction occurred between the first and second conjugating groups. Also disclosed herein are methods of treating diseases by using the instant conjugate.

IPC Classes  ?

  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61P 35/00 - Antineoplastic agents

22.

DEFECT-RICH MOS2 MONOLAYER, METHODS FOR PRODUCING THE SAME AND USES THEREOF

      
Application Number 18522053
Status Pending
Filing Date 2023-11-28
First Publication Date 2025-05-29
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Ly, Thuc Hue
  • Man, Ping
  • Leung, Ka Ho

Abstract

Disclosed herein are a defect-rich molybdenum disulfide (MoS2) monolayer, its production method and uses thereof. The defect-rich MoS2 monolayer is characterized in having a vacancy density up to 3.35×1014/cm2, and is produced by vapor deposition on a substrate in the presence of potassium chloride (KCl). The defect-rich MoS2 monolayer could serve as an electrocatalyst in hydrogen evolution reaction (HER) to convert proton into hydrogen. Also disclosed herein is a MoS2-based microelectroactalysis cell, which is a three-electrode system, comprising a working electrode, a counter electrode, a reference electrode and an electrolyte; in which the working electrode, the counter electrode or both independently comprises the vacancy-rich MoS2 monolayer coated thereon.

IPC Classes  ?

  • C25B 11/075 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 11/055 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material

23.

METHOD AND SYSTEM FOR SUBMARINE CABLE PATH PLANNING

      
Application Number 18518705
Status Pending
Filing Date 2023-11-24
First Publication Date 2025-05-29
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Xinyu
  • Wang, Zengfu
  • Zukerman, Moshe

Abstract

A computer-implemented method for ultra-long distance path planning includes (a) decomposing a target area into two initial sub-domains, the target area covering a path from a starting point to an end point, at an initial resolution along a direction connecting the starting point to the end point, (b) executing a Fast Marching Method (FMM) in parallel in the two initial sub-domains to obtain an initial path connecting the starting point to the end point, (c) decomposing an area enclosing the initial path into a plurality of subsequent sub-domains at a resolution higher than the initial resolution, wherein the area enclosing the initial path is decomposed aligned with the direction connecting the starting point to the end point, and (d) executing the FMM in parallel in all the sub-domains to obtain an optimal path connecting the starting point and the end point.

IPC Classes  ?

24.

CROSS LAMINATION STRUCTURE AND MAGNETIC CORES COMPRISING THE SAME

      
Application Number 18956763
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-05-29
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Yibo
  • Jiang, Chaoqiang
  • Ma, Tianlu

Abstract

A magnetic flux device configured to transmit or receive magnetic flux to or from a space beyond the magnetic flux device. The magnetic flux device includes a first electrically conductive coil and a magnetically permeable core. The magnetically permeable core includes a plurality of first laminated cores each laminated along a first direction, and a plurality of second laminated cores each laminated along a second direction substantially perpendicular to the first direction. The combination of the first and second laminations enhances the efficiency as well as thermal uniformity.

IPC Classes  ?

  • H01F 3/10 - Composite arrangements of magnetic circuits
  • H01F 1/20 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
  • H01F 5/06 - Insulation of windings
  • H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

25.

METHOD FOR SELECTIVE SURFACE ENGINEERING OF PEROVSKITE MICROWIRE ARRAYS

      
Application Number 18513810
Status Pending
Filing Date 2023-11-20
First Publication Date 2025-05-22
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ho, Johnny Chung Yin
  • Li, Dengji
  • Meng, You
  • Zhang, Yuxuan

Abstract

The surface of low-dimensional perovskites plays a crucial role in determining their intrinsic properties. Thus, specific surfaces may be designed to obtain a desired characteristic and/or a functional structure. Further, surface passivation could also be applied to stabilize and optimize the state-of-the-art perovskite-based optoelectronics. CsPbBr3 microwires parallel arrays with specific (100)-terminated crystal planes were designed and fabricated to have excellent photodetection performance with long-term environment stability over 3000 hours. Further, environmental oxygen may be used to passivate the Br-vacancy-related trap states on the (100) surface and to create charge carrier nanochannels to enhance the (opto)electronic properties. The coupling effects between oxygen species and the specific terminated crystal planes of perovskites highlight the importance of surface engineering for designing and optimizing perovskite-based devices.

IPC Classes  ?

  • H10K 30/10 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
  • H10K 30/87 - Light-trapping means
  • H10K 85/50 - Organic perovskitesHybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3

26.

ENGINEERED PROBIOTICS AND THE APPLICATIONS THEREOF

      
Application Number 18919445
Status Pending
Filing Date 2024-10-18
First Publication Date 2025-05-22
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Pham, Quynh Hoa
  • Lau, Chi Kong
  • Ban, Kiwon
  • Bui, Thi Van Anh

Abstract

A genetically engineered strain of Escherichia coli Nissle 1917 (EcN) with a modified genome designed to enhance the production of short-chain fatty acids (SCFAs) is provided. The engineered genome includes the atoB gene from E. coli K-12, responsible for encoding acetyl-CoA acetyltransferase, a crt-bcd-etfA-etfB-BHBD gene cluster from E. C. butyricum that encodes enzymes involved in the synthesis of SCFAs, specifically enoyl-CoA hydratase, butyryl-CoA dehydrogenase, and electron transfer flavoproteins, and the ptb-buk gene from C. acetobutyricum, which encodes phosphotransbutyrylase and butyrate kinase. Additionally, key genes associated with competing metabolic pathways—ldhA, frdABCD, adhE, ackA, and pta—are deleted to optimize SCFA production, particularly butyrate. This strain is intended for use in therapeutic applications where enhanced SCFA production is beneficial, such as in the treatment of coronary heart disease.

IPC Classes  ?

  • A61K 35/741 - Probiotics
  • A61K 38/44 - Oxidoreductases (1)
  • A61K 38/45 - Transferases (2)
  • A61K 38/51 - Lyases (4)
  • A61K 47/46 - Ingredients of undetermined constitution or reaction products thereof, e.g. skin, bone, milk, cotton fibre, eggshell, oxgall or plant extracts
  • A61P 9/10 - Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
  • C12N 15/52 - Genes encoding for enzymes or proenzymes

27.

METHOD FOR INDUCING DEDIFFERENTIATION OF ADIPOCYTES

      
Application Number 18619199
Status Pending
Filing Date 2024-03-28
First Publication Date 2025-05-15
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhang, Liang
  • Liu, Guopan
  • Pan, Yilin
  • Wang, Ying

Abstract

The present invention investigates the effects of hypertonicity on adipocytes, revealing its role in inducing the release of mitochondrial extracellular vesicles (MEVs). This release subsequently enhances the secretion of TNF-α, a pro-inflammatory cytokine crucial during stress responses, thereby activating the Wnt/β-catenin signaling pathway responsible for adipocyte dedifferentiation. Through the present method, hypertonicity induces MEVs release and TNF-α secretion, ultimately modulating Wnt/β-catenin signaling and promoting adipocyte dedifferentiation, offering promising therapeutic implications.

IPC Classes  ?

  • C12N 5/077 - Mesenchymal cells, e.g. bone cells, cartilage cells, marrow stromal cells, fat cells or muscle cells

28.

A NOVEL HIGH-PERFORMANCE PHOTODETECTOR BASED ON TWO-DIMENSIONAL PEROVSKITE CRYSTALS WITH ALTERNATING INTERLAYER CATIONS

      
Application Number 18631022
Status Pending
Filing Date 2024-04-09
First Publication Date 2025-05-15
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ho, Johnny Chung Yin
  • Li, Yezhan
  • Meng, You
  • Lai, Zhengxun
  • Quan, Quan

Abstract

In this invention, a high-performance photodetector based on 2D bilayered hybrid lead halide perovskite single crystal with ACI phase, with a chemical formula of GAMA2Pb2I7 where GA is C(NH2)3 and MA is CH3NH3,) was fabricated, using a facile and cost-effective method based on cooling crystallization. The single-crystal photodetector exhibits high photoresponsivity, together with correspondingly high detectivity values. Meanwhile, a high-resolution imaging sensor is built based on the GAMA2Pb2I7 single-crystal photodetector, confirming the high stability and photosensitivity of the imaging system.

IPC Classes  ?

  • C30B 29/12 - Halides
  • C30B 7/14 - Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions the crystallising materials being formed by chemical reactions in the solution

29.

HIGH-PERFORMANCE ORGANIC LI-BROMINE BATTERY ENABLED BY TWO-ELECTRON REDOX CHEMISTRY

      
Application Number 18499255
Status Pending
Filing Date 2023-11-01
First Publication Date 2025-05-01
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Li, Xinliang
  • Li, Pei

Abstract

The present invention provides a high-performance organic lithium-bromine battery enabled by two-electron redox chemistry. The battery includes a bromide-based cathode, an anode, an organic electrolyte disposed in a space between the bromide-based cathode and the anode, featuring an organic solvent with chloride ions-containing additives, and a separator positioned between the bromide-based cathode and anode. The chloride ions within the organic electrolyte trigger a conversion of positively charged bromine ions, facilitating an additional electron transfer and resulting in a capacity of at least 600 mAh g−1, and elevates an output plateau to 3.8 V, thereby achieving an energy density of at least 2000 Wh kg−1Br.

IPC Classes  ?

  • H01M 10/0567 - Liquid materials characterised by the additives
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/66 - Selection of materials
  • H01M 10/052 - Li-accumulators
  • H01M 50/417 - Polyolefins

30.

SHAPE MEMORY CERAMICS AND MANUFACTURING AND 4D PRINTING METHODS THEREOF

      
Application Number 18749667
Status Pending
Filing Date 2024-06-21
First Publication Date 2025-05-01
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lu, Jian
  • Liu, Guo

Abstract

A shape memory ceramic is provided. The shape memory ceramic comprises a first portion and a second portion. The first and second portions of the shape memory ceramic are bonded, and the shape memory ceramic is elastomer-derived ceramic comprising silicon oxycarbide. The first portion of the shape memory ceramic is treated with ultraviolet ozone, and the second portion of the shape memory ceramic is free from treatment of ultraviolet ozone. The manufacturing and 4D printing methods of the shape memory ceramic are also provided.

IPC Classes  ?

  • C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
  • B28B 1/00 - Producing shaped articles from the material
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
  • B33Y 80/00 - Products made by additive manufacturing
  • C04B 35/626 - Preparing or treating the powders individually or as batches
  • C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone
  • C04B 41/53 - After-treatment of mortars, concrete, artificial stone or ceramicsTreatment of natural stone involving the removal of part of the materials of the treated article

31.

PEROVSKITE LAYER, FABRICATION METHOD AND USE THE SAME

      
Application Number 18499651
Status Pending
Filing Date 2023-11-01
First Publication Date 2025-05-01
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Jen, Alex Kwan Yue
  • Wu, Shengfan
  • Yan, Yichao

Abstract

A perovskite layer for use in a solar cell includes a mixture of a halide perovskite and a sulfonyl naphthoquinone-based compound having a structure of Formula (I). Methods for fabricating the perovskite layer and a solar cell including a first active layer of the perovskite layer are also addressed.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07C 211/63 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
  • C07C 309/44 - Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing doubly-bound oxygen atoms bound to the carbon skeleton
  • H10K 30/40 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a p-i-n structure, e.g. having a perovskite absorber between p-type and n-type charge transport layers
  • H10K 30/57 - Photovoltaic [PV] devices comprising multiple junctions, e.g. tandem PV cells
  • H10K 85/20 - Carbon compounds, e.g. carbon nanotubes or fullerenes
  • H10K 85/50 - Organic perovskitesHybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3

32.

TRANSPARENT AND FLEXIBLE ELECTRONIC SKIN AND METHOD FOR FABRICATING THE SAME

      
Application Number 18492808
Status Pending
Filing Date 2023-10-24
First Publication Date 2025-04-24
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yu, Xinge
  • Zhou, Jingkun
  • Li, Jian
  • Jia, Huiling

Abstract

The present invention provides a transparent and flexible electronic skin with three-dimensional sensing capability. The electronic skin comprises: a substrate; an transparent and flexible electric field sensor disposed on the substrate; a control circuit disposed on the substrate; and a transparent and flexible protective layer encapsulating the electric field sensor and the control circuit. The electric field sensor includes a transmitter electrode; one or more receiver electrodes; and dielectric layer arranged between the transmitter electrode and receiver electrodes. The control circuit is connected to the electric field sensor and configured to: drive the transmitter electrode to transmit a reference signal to establish a quasi-static electrical near field; and process one or more measurement signals received by the one or more receiver electrodes respectively, each measurement signal is indicative of a distortion of the quasi-static electrical near field due to proximity of an object.

IPC Classes  ?

  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • A61L 27/60 - Materials for use in artificial skin
  • B25J 13/00 - Controls for manipulators
  • B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators

33.

Wearable haptic devices for modulating perceived roughness of physical surfaces in real-time simulation in mixed reality environments

      
Application Number 18581360
Grant Number 12282600
Status In Force
Filing Date 2024-02-19
First Publication Date 2025-04-22
Grant Date 2025-04-22
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhu, Kening
  • Yu, Xinge
  • Cai, Shaoyu
  • Gao, Haichen
  • Zhang, Qi

Abstract

A wearable haptic modulation device for real-time simulation of texture properties of a material surface in mixed reality environments is provided. Particularly, it includes a U-shaped pneumatic actuator surrounds a user's fingertip, a finger-housing support creating a space for fingertip containment, a resonant actuator on the finger-housing support generating vibrotactile feedback to enhance perceived roughness on touched physical surfaces, and a pneumatic control system generating pneumatic actuation to reduce the perceived roughness on touched physical surface. Notably, the U-shaped pneumatic actuator allows direct contact of the user's fingerpad with the touched physical surface.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06T 19/00 - Manipulating 3D models or images for computer graphics

34.

PORTABLE AND FILTER-FREE SINGLE-PASS AIR DISINFECTION SYSTEM FOR DISINFECTION OF CONTAMINATED AIRFLOW OR BIOAEROSOLS

      
Application Number 18806743
Status Pending
Filing Date 2024-08-16
First Publication Date 2025-04-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lai, Chi Keung
  • Zhang, Huihui
  • Wang, Minghao
  • Lu, Yuhao

Abstract

Two portable disinfection systems for indoor air disinfection are provided. One system is designed to be equipped with an external Far-UVC lamp as UV source, while the other is designed to be equipped with an internal Far-UVC tubular lamp as UV source. The system's portability makes it versatile and applicable in many different scenarios. The portability of these systems makes them versatile and suitable for various scenarios, including room disinfection and public transportation. They can function as standalone air disinfection units or be integrated with existing technologies to further reduce airborne pathogen concentrations.

IPC Classes  ?

35.

Hopping Robot with Bidirectional Thrusters

      
Application Number 19002977
Status Pending
Filing Date 2024-12-27
First Publication Date 2025-04-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Li, Song
  • Chirarattananon, Pakpong
  • Bai, Songnan
  • Ding, Runze

Abstract

A robot which includes an aerial unit having a thruster module; a passive leg mechanism operably coupled with the aerial unit; and a controller module configured to control operation of the aerial unit such that the robot is operable in at least a hopping mode. The thruster module is adapted to provide bidirectional thrusts. The bidirectional thrusters enable the robot to handle increased energy losses from ground impacts and the leg mechanism, accommodating heavier payloads.

IPC Classes  ?

  • B64U 60/55 - Undercarriages with landing legs the legs being also used as ground propulsion
  • B64U 10/14 - Flying platforms with four distinct rotor axes, e.g. quadcopters

36.

AUTONOMOUS SELF-HEALABLE AND MECHANICALLY ROBUST HYDROGEL AND TRIBOELECTRIC NANOGENERATOR COMPRISING THE SAME

      
Application Number 18485454
Status Pending
Filing Date 2023-10-12
First Publication Date 2025-04-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Firdous, Irum
  • Fahim, Muhammad
  • Daoud, Walid

Abstract

A self-healable hydrogel of acrylic acid (AA) graft copolymerized with gum Arabic (GA) via ferric ions cross-linking. The GA is imparted as a cluster molecule that offers a diffusionless solvent independent non-bonding interaction in the hydrogel and mediate strong bonding interactions. Methods of fabricating the hydrogel and a triboelectric nanogenerator (TENG) are also described. Besides self-healing characteristics, the TENG device retains high output performance of ambient state, at aqueous and frozen states owing to availability of electrostatically triggered diffusionless interaction in all states.

IPC Classes  ?

  • C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
  • C08J 3/075 - Macromolecular gels
  • H02N 1/04 - Friction generators

37.

RECHARGEABLE ZINC-NITRATE/ETHANOL BATTERY

      
Application Number 18666870
Status Pending
Filing Date 2024-05-17
First Publication Date 2025-04-10
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Fan, Zhanxi
  • Zhou, Jingwen
  • Xiong, Yuecheng

Abstract

The present invention pertains to a method for preparing ultra-thin RhCu nanostructures modified with M-TPP and applications thereof. By adjusting the feeding ratio of raw materials, the morphology, composition, purity, and size of RhCu M-tpp can be customized. The simplicity of operation and the robustness of reaction parameters contribute to high reproducibility of the target products. Furthermore, large-scale production is achievable by proportionally increasing the concentrations of metal ion precursors, reducing agents, and surfactants, demonstrating significant potential for industrial-scale production of molecule-modified ultra-thin RhCu nanostructures.

IPC Classes  ?

  • H01M 4/92 - Metals of platinum group
  • C01G 55/00 - Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 8/08 - Fuel cells with aqueous electrolytes
  • H01M 8/18 - Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells

38.

BASE STATION SLEEPING STRATEGY IN HETEROGENOUS CELLULAR NETWORKS BASED ON USER TRAFFIC PREDICTION

      
Application Number 18738730
Status Pending
Filing Date 2024-06-10
First Publication Date 2025-04-10
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Wang, Xinyu
  • Lyu, Bingchen
  • Guo, Chao
  • Xu, Jiahe
  • Zukerman, Moshe

Abstract

A BS sleeping strategy for a two-tier HeCN that consists of MaBS and MiBS. The approach involves strategically consolidating workloads distributed across the network onto fewer BSs. At the heart of the strategy is a Bidirectional Long Short-Term Memory (BLSTM) neural network, which predicts future traffic for each user. The predicted traffic data informs the proposed BS sleeping strategy, which shifts user connections from under-utilized MiBSs to other BSs, subsequently powering down the idle MiBSs, while MaBSs remain always on. This strategy is executed with utmost consideration for maintaining service quality, ensuring that the switch does not degrade each user's Signal-to-Interference-plus-Noise Ratio thresholds or traffic demand rate.

IPC Classes  ?

  • H04W 28/086 - Load balancing or load distribution among access entities
  • H04W 24/02 - Arrangements for optimising operational condition
  • H04W 28/08 - Load balancing or load distribution

39.

Negative Reactance Synthesizer

      
Application Number 18761351
Status Pending
Filing Date 2024-07-02
First Publication Date 2025-04-10
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Tse, Chi Kong
  • Ding, Li

Abstract

The present invention provides a negative reactance synthesizer comprising: a DC power source; a first converter configured for shaping an input current under an AC input voltage that has a given peak value and converting a variable DC voltage to a fixed DC voltage; a second converter configured for converting the fixed DC voltage to a stack-up DC voltage being greater than the peak value of the AC input voltage and stacked on the AC input voltage to form the variable DC voltage; a first control circuitry configured to generate a first gate driver signal and a first complementary gate drive signal for controlling the first converter; and a second control circuitry configured to generate a second gate driver signal and a second complementary gate drive signal for controlling the second converter. The present invention provides a simple and low-cost solution to emulate a standalone negative reactance.

IPC Classes  ?

  • H03H 11/02 - Multiple-port networks
  • H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

40.

NONLINEAR INERTIA-BASED VIBRATION ISOLATION SYSTEM

      
Application Number 18482518
Status Pending
Filing Date 2023-10-06
First Publication Date 2025-04-10
Owner City University of Hong Kong (Hong Kong)
Inventor Jing, Xingjian

Abstract

An anti-vibration system is provided that includes a first support structure including a first support member and a second support member coupled to the first support member at a first joint such that the first and second support members are each rotatable about the first joint. The first support member and the second support member cross over one another at the first joint. A third support member is coupled to the first and second support members and is rotatable about an axis extending through the first joint. A first weighted member is disposed at a first end portion of the third support member.

IPC Classes  ?

  • F16F 7/104 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted

41.

Surface-based 3D modelling techniques on touchscreen device with angle-adjustable touchscreen

      
Application Number 18483249
Grant Number 12271587
Status In Force
Filing Date 2023-10-09
First Publication Date 2025-04-08
Grant Date 2025-04-08
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Liu, Can
  • Cassinelli, Alvaro
  • Dai, Chenyue

Abstract

One or more systems, methods and/or machine-readable mediums are described herein for allowing display and manipulation of surface-based 3D modelling on touchscreens being adjustable relative to one another. A method can comprise displaying, by a mobile device comprising a processor, a first part of virtual content via a first display screen portion of a pair of display screen portions and a second part of the virtual content via a second display screen portion of the pair of display screen portions. The first display screen portion and the second display screen portion are part of the mobile device and are pivotable relative to each other to define an angle between the first display screen portion and the second display screen portion. Displaying the first part of the virtual content comprises displaying a feature of the virtual content that is aligned along a first surface plane of the first display screen portion.

IPC Classes  ?

  • G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06F 3/04815 - Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
  • G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
  • G06F 3/14 - Digital output to display device
  • G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts

42.

FABRICATION METHODS FOR 3D STRUCTURES BASED ON ROLLING-UP KIRIGAMI TECHNIQUES

      
Application Number 18480224
Status Pending
Filing Date 2023-10-03
First Publication Date 2025-04-03
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Dong, Lixin
  • Wang, Kun
  • Hou, Chaojian
  • Wenqi, Zhang

Abstract

Fabrication methods are provided for transforming two-dimensional films into three-dimensional structures based on rolling-up kirigami techniques. In an example, a method includes forming a first layer of a first material on a portion of a substrate, forming a second layer of a second material on the first layer and a second portion of the substrate, and forming a third layer of a third material on a first portion of the second layer. A pattern is formed into the third layer when forming the third layer. The example method further includes transforming at least a portion of the third layer into a three-dimensional structure based in part on removing a second portion of the second layer and at least a portion of the first layer.

IPC Classes  ?

  • C23C 14/58 - After-treatment
  • C23C 14/02 - Pretreatment of the material to be coated
  • C23C 14/14 - Metallic material, boron or silicon
  • C23C 14/30 - Vacuum evaporation by wave energy or particle radiation by electron bombardment
  • C23C 16/34 - Nitrides
  • C23C 16/513 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using plasma jets
  • C23C 16/56 - After-treatment
  • C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and

43.

CANTILEVER-BASED OPTO-ELECTROMECHANICAL SYSTEMS AND FABRICATION METHODS

      
Application Number 18480260
Status Pending
Filing Date 2023-10-03
First Publication Date 2025-04-03
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Dong, Lixin
  • Hou, Chaojian
  • Wang, Kun
  • Wenqi, Zhang

Abstract

A system, multifunctional chip, and fabrication method thereof are provided. For example, a method for use in fabricating an opto-electromechanical system includes generating, from a film of a material and a substrate on which the film is disposed, a suspended portion of the film by removing a first portion of the substrate such that the film's first portion becomes the suspended portion and a second portion of the film is adjacent to a second portion of the substrate after removing the substrate's first portion. A two-dimensional nanomaterial is thereafter transferred onto a section of the suspended portion of the film via an all-dry process. A cantilever is thereafter generated from the film's suspended portion and extends from the film's second portion. The two-dimensional nanomaterial is disposed on the cantilever. Other aspects and features are also claimed and described.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • H01J 37/26 - Electron or ion microscopesElectron- or ion-diffraction tubes

44.

METHODS AND COMPOSITIONS OF TREATING SPINAL CORD INJURIES

      
Application Number 18472200
Status Pending
Filing Date 2023-09-21
First Publication Date 2025-03-27
Owner City University of Hong Kong (Hong Kong)
Inventor Liu, Aijia

Abstract

A method for treating spinal cord injuries involves the administration of a genetically modified neural progenitor cell (NPC). This genetically engineered NPC is designed to exhibit an enhanced sonic hedgehog (SHH) signaling pathway. This method aims to provide a therapeutic strategy for addressing spinal cord injuries by leveraging the augmented SHH signaling pathway in the administered cells.

IPC Classes  ?

45.

Foam Concrete and Composition and Method of Forming Same

      
Application Number 18892670
Status Pending
Filing Date 2024-09-23
First Publication Date 2025-03-27
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lau, Denvid
  • Chen, Huaguo
  • Liang, Kaikang

Abstract

A foam concrete composition (28) is disclosed as including limestone calcined clay cement (LC3) (20), used engine oil (UEO) (14), a foaming agent (10), and water (12). A method of forming a foam concrete composition is disclosed as including mixing limestone calcined clay cement (LC3) (20), used engine oil (UEO) (14), a foaming agent (10) and water (12).

IPC Classes  ?

  • C04B 38/10 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by using foaming agents
  • C04B 18/18 - Waste materialsRefuse organic
  • C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
  • C04B 103/00 - Function or property of the active ingredients
  • C04B 103/40 - Surface-active agents Dispersants

46.

REINFORCEMENT-LEARNING-BASED NETWORK TRANSMISSION OF COMPRESSED GENOME SEQUENCE

      
Application Number 18291916
Status Pending
Filing Date 2023-11-27
First Publication Date 2025-03-20
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Wang, Shiqi
  • Li, Xiaona
  • Sun, Zhenhao

Abstract

A framework that comprises a reinforcement-learning-based neural-network for compressing, and for transmitting the compressed genomes over a data network in repeated steps each of a plurality of species. The framework also takes data on inefficient transmission of compressed genome in the preceding step, and feeds this data forward to modify the selection of the compression parameter in the present step. The invention provides the possibility that the genome of any species may be compressed optimally and transmitted in optimal efficiency. That is, big genome sequence is neither over compressed, which takes a lot of processing time leading to delays, nor under compressed which will require more time to transmit.

IPC Classes  ?

  • G16B 50/50 - Compression of genetic data
  • G16B 40/00 - ICT specially adapted for biostatisticsICT specially adapted for bioinformatics-related machine learning or data mining, e.g. knowledge discovery or pattern finding
  • H03M 7/30 - CompressionExpansionSuppression of unnecessary data, e.g. redundancy reduction

47.

METHOD FOR DETERMINING ACUTE TOXICITY AND A SYSTEM USING SAID METHOD

      
Application Number 18431056
Status Pending
Filing Date 2024-02-02
First Publication Date 2025-03-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Wenxiong
  • Xia, Yiteng

Abstract

A method for determining acute toxicity of an analyte includes the steps of: a) exposing a first fish cell culture to a first reference solution; b) incubating the first fish cell culture in step a) with a fluorescent probe; c) obtaining a first fluorescence parameter from the stained first fish cell culture; d) establishing a first linear regression relationship model between the first fluorescence parameter and viability of an animal model; and e) determining acute toxicity of the analyte by adopting the first linear regression relationship model. A system using the method for determining acute toxicity of an analyte is also addressed.

IPC Classes  ?

  • G01N 33/50 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing
  • A61K 49/00 - Preparations for testing in vivo
  • G01N 21/64 - FluorescencePhosphorescence

48.

HIGH-VOLTAGE LITHIUM-ION BATTERY WITH A WIDE ELECTROCHEMICAL WINDOW OF POLYMER ELECTROLYTES

      
Application Number 18468736
Status Pending
Filing Date 2023-09-17
First Publication Date 2025-03-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Hou, Yue

Abstract

The present invention relates to a PVTF-based solid polymer electrolyte, comprising: a polymer matrix; a N,N-Dimethylformamide (DMF) solvent; and a lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The PVTF-based solid polymer electrolyte demonstrates an exceptional electrochemical window of up to 5.68 V, a significantly higher ionic conductivity of 1.91×10−3 S cm−1 at ambient temperature, and the PVTF-based solid polymer electrolyte has a glass transition temperature (Tg) lower than −38° C.

IPC Classes  ?

  • H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/134 - Electrodes based on metals, Si or alloys
  • H01M 4/66 - Selection of materials
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

49.

ULTRA-STRONG AND DUCTILE MULTIFUNCTIONAL TITANIUM ALLOY AND METHODS FOR PREPARING THE SAME

      
Application Number 18463306
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yang, Tao
  • Zhang, Jixun

Abstract

The present invention relates to an ultra-strong and ductile multifunctional titanium alloy made from two or more metal elements. The titanium alloy has a molecular formula of TiaZrbHfcNbdSne, a, b, c, d, and e represent atomic percentages of the metal elements, falling within the ranges of 45≤a≤55, 36≤b≤43, 3≤c≤6, 3.5≤d≤7.5, and 1.5≤e≤3. The titanium alloy exhibits an initial microstructure characterized by an equiaxed ultra-fine grain (UFG) structure, which is reinforced by hierarchical nanostructures formed during subsequent deformation. By synergistically amalgamating the benefits of superior mechanical performance, pseudoelasticity, and biocompatibility, the alloy is anticipated to emerge as a promising contender for advanced damping devices or shock absorbers within the aerospace and automotive sectors. Additionally, it can be employed as biocompatible implants, including stent grafts or guide wires, in medical applications.

IPC Classes  ?

  • C22C 14/00 - Alloys based on titanium
  • C22C 30/04 - Alloys containing less than 50% by weight of each constituent containing tin or lead

50.

Robot Operable to Fly and Hop

      
Application Number 18465403
Status Pending
Filing Date 2023-09-12
First Publication Date 2025-03-13
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Bai, Songnan
  • Chirarattananon, Pakpong
  • Ding, Runze

Abstract

There is provided a robot comprising an aerial unit, a passive leg mechanism operably coupled with the aerial unit, and a controller. The controller is configured to control operation of the aerial unit such that the robot is operable in, at least, a flight mode and a hopping mode.

IPC Classes  ?

  • B64U 10/14 - Flying platforms with four distinct rotor axes, e.g. quadcopters
  • B64U 10/80 - UAVs characterised by their small size, e.g. micro air vehicles [MAV]
  • B64U 20/70 - Constructional aspects of the UAV body

51.

STRONG-YET-DUCTILE CHEMICALLY COMPLEX ALLOY OVER A WIDE TEMPERATURE RANGE AND ITS PREPARATION METHOD

      
Application Number 18464190
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yang, Tao
  • Zhou, Yinghao

Abstract

The present invention relates to a strong-yet-ductile chemically complex alloy over a wide temperature range, including nickel, cobalt, iron, chromium, aluminum, titanium, tantalum, niobium, tungsten, molybdenum, and one or more infinitesimal elements. The strong-yet-ductile chemically complex alloy forms one or more multi-scale L12 particles within a grain interior and exhibits serrated grain boundaries via controlling a heat treatment process. The aluminum, titanium, tantalum and niobium facilitate the formation of the one or more multi-scale L12 particles, the tungsten and molybdenum enhances a strength of a FCC matrix of the chemically complex alloy, and the one or more infinitesimal elements improve a cohesive strength of the serrated grain boundaries. The present invention has the potential to pave the way for the creation of a range of CCAs exhibiting enhanced strength and ductility across a broad temperature spectrum, achieved by integrating high-density multiscale L12 particles and serrated grain boundaries.

IPC Classes  ?

  • C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
  • C22C 1/02 - Making non-ferrous alloys by melting
  • C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium

52.

RSS-based Emergency Positioning Method and System

      
Application Number 18823730
Status Pending
Filing Date 2024-09-04
First Publication Date 2025-03-06
Owner City University of Hong Kong (Hong Kong)
Inventor
  • He, Jiajun
  • Xiong, Wenxin
  • So, Hing Cheung

Abstract

The present invention provides a received signal strength (RSS)-based emergency positioning method and system for locating a target user equipment (UE). The method comprises: broadcasting sidelink signals to request UEs from surroundings to transmit identification signals; identifying a target UE based on the plurality of identification signals; estimating, by the processor, a final RSS distance of the target UE with respect to the locator based on RSS values of received uplink signals; estimating an angle of arrival for the locator; and computing location of the targe UE based on the obtained RSS distance and the obtained angle of arrival. The present invention can locate the target position without the assistance of global positioning system (GPS) and macro base station (MBS), and achieve a better localization performance than the commercial MBS and GPS-based localization approaches.

IPC Classes  ?

  • H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
  • H04B 17/318 - Received signal strength
  • H04W 76/50 - Connection management for emergency connections

53.

Biomimetic Thermal Regulating Fabric and Method for Constructing the Same

      
Application Number 18604516
Status Pending
Filing Date 2024-03-14
First Publication Date 2025-03-06
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yu, Xinge
  • Chow, Lung
  • Huang, Xingcan
  • Zhang, Qiang

Abstract

A biomimetic thermal regulating fabric (BTRF) imitating army and bivouacs and a method for constructing the same are provided. The BTRF comprises a plurality of yarns formed of textile fibres having a water-actuated crimp behaviour, wherein the plurality of yarns is knitted by means of transfer stitch to form an unsymmetrical fabric structure which has a positive water-actuated expansion rate along a first axis and a negative water-actuated expansion rate along a second axis orthogonal to the first axis. Surfaces of the textile fibres are plasma-treated to have one or more hydrophilic functional groups. One or more colorimetric fabric sensors are incorporated to generate colours in response to one or more ambient environmental conditions or user physiological conditions respectively. The present invention has excellent scalability, biocompatibility, and great dynamic durability, and is advantageous for applications in athletic wear, outdoor wear, and medical textiles.

IPC Classes  ?

  • D04B 1/24 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machinesFabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel
  • D04B 1/14 - Other fabrics or articles characterised primarily by the use of particular thread materials

54.

L-RNA APTAMERS, RECOMBINANT POLYNUCLEOTIDES, AND USES THEREOF IN TREATING ALZHEIMERS DISEASE

      
Application Number 18795168
Status Pending
Filing Date 2024-08-05
First Publication Date 2025-03-06
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor Kwok, Chun Kit

Abstract

Disclosed herein is an L-RNA aptamer specific to 3′-untranslated region (3′-UTR) of amyloid precursor protein (APP) messenger RNA (mRNA). According to some embodiments of the present disclosure, the L-RNA comprises the nucleotide sequence of SEQ ID NO: 1. Also disclosed herein are a recombinant polynucleotide derived from the L-RNA aptamer, and uses of the L-RNA aptamer in treating Alzheimer's disease (AD).

IPC Classes  ?

  • C12N 15/113 - Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides
  • C12P 19/34 - Polynucleotides, e.g. nucleic acids, oligoribonucleotides

55.

PIEZOCATALYST, PIEZOELECTRIC MATERIAL COMPRISING PIEZOCATALYST, MANUFACTURING METHOD, AND USES THEREFOR

      
Application Number 18825151
Status Pending
Filing Date 2024-09-05
First Publication Date 2025-03-06
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lee, Chun-Sing
  • Yao, Weifeng
  • Zhao, Qi
  • Sun, Yajun

Abstract

A piezocatalyst containing a nitrogen doped carbon skeleton derived from a zeolitic imidazolate framework (ZIF), and a single-atom alkaline earth metal anchored on the nitrogen doped carbon skeleton, where the alkaline earth metal is selected from the group of beryllium (Be), magnesium (Mg), calcium (Ca), Strontium (Sr), and barium (Ba); the piezocatalyst includes an active cite formed with the single-atom alkaline earth metal and nitrogen atoms from the ZIF. A piezocatalytic material includes the piezocatalyst. Also provided herein is a method of manufacturing such a piezocatalyst/piezocatalytic material and an environmental remediation method employing such a piezocatalyst/piezocatalytic material.

IPC Classes  ?

56.

DATA ANALYTICS SYSTEM AND ITS OPERATION

      
Application Number 18449143
Status Pending
Filing Date 2023-08-14
First Publication Date 2025-02-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Cong
  • Cai, Chengiun
  • Zang, Yichen

Abstract

A method for operating a data analytics system includes storing, at a first server system of the data analytics system, a first key associated with a data provider and/or storing, at a second server system of the data analytics system, a second key associated with the data provider. The first key and the second key are complementary keys generated using a secret sharing based cryptographic algorithm based on a policy arranged to control usage of data provided by the data provider. The first key and the second key are arranged to facilitate performing of a data analytics operation at the data analytics system.

IPC Classes  ?

  • G06F 21/60 - Protecting data
  • H04L 9/00 - Arrangements for secret or secure communicationsNetwork security protocols

57.

Electrolyte Additives and Rechargeable Batteries Comprising the Same

      
Application Number 18804619
Status Pending
Filing Date 2024-08-14
First Publication Date 2025-02-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yu, Yau Wai Denis
  • Duan, Qiaohui

Abstract

An electrolyte for a battery having a manganese-based cathode includes a metal/metalloid ion of the formula Mn+ where M indicates a metal/metalloid and wherein n is from about 2 to about 4. A battery having a manganese-based cathode includes the electrolyte as described; or wherein the electrolyte includes from about 0.05% (w/v) to about 10% (w/v); or from about 0.1% (w/v) to about 5% (w/v), metal/metalloid ion. A battery including the electrolyte and a method for improving performance of the battery are provided. A method for improving performance of a battery including a manganese-based cathode includes introducing a metal/metalloid ion of the formula Mn+ where M indicates a metal/metalloid and wherein n is from about 2 to about 4 into an electrolyte.

IPC Classes  ?

  • H01M 10/36 - Accumulators not provided for in groups
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/42 - Alloys based on zinc
  • H01M 4/50 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese

58.

IMAGE RECOVERY PROCESSOR UTILIZING FRAMEWORK FOR GENERATING SPARSITY REGULARIZERS FOR IMAGE RESTORATION

      
Application Number 18446444
Status Pending
Filing Date 2023-08-08
First Publication Date 2025-02-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Zhiyong
  • So, Hing Cheung
  • Zoubir, Abdelhak M.

Abstract

An image restoration processor includes an image receiver, a matrix converter, a framework memory, a modifier, a matrix decomposer, and an image reconstructor. The image receiver receives one or more degraded images. The matrix converter reshapes image data of the one or more degraded images into one or more target matrices. The framework memory stores a framework for generating one or more sparsity-inducing regularizers. The modifier reads the framework memory and applies the framework to modify an M-estimator and accordingly output a hybrid M-estimator as well as the corresponding sparse regularizer. The matrix decomposer receives the one or more target matrices and the sparse regularizer and to apply the sparse regularizer to RPCA via decomposing one of the one or more target matrices into a sum of low-rank and sparse matrices. The image reconstructor integrates outcomes of decomposition from the matrix decomposer to form one or more recovered images.

IPC Classes  ?

  • G06T 5/00 - Image enhancement or restoration
  • G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries
  • G06V 10/771 - Feature selection, e.g. selecting representative features from a multi-dimensional feature space
  • G06V 10/776 - ValidationPerformance evaluation

59.

RECHARGEABLE AQUEOUS Zn||IS FLOW BATTERY SYSTEM

      
Application Number 18451132
Status Pending
Filing Date 2023-08-17
First Publication Date 2025-02-20
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Wei, Zhiquan
  • Liang, Guojin

Abstract

The present invention relates to a rechargeable aqueous Zn∥IS flow battery system. The system includes a cathode side comprising an electrode material and a first storage tank providing a catholyte, wherein the catholyte comprises zinc iodide and a soluble starch, forming an electrolyte having aggregated colloidal nanoparticles; an anode side comprising the electrode material and a second storage tank providing an anolyte; and a separator positioned between the cathode and anode. The anolyte and the catholyte flow between the cathode and the anode by a peristaltic pump. The present invention provides a system to further exploit colloidal electrolyte chemistries for the LPPM-based flow battery systems towards power cost-effectiveness and high-temperature large-scale energy storage.

IPC Classes  ?

  • H01M 8/18 - Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 4/90 - Selection of catalytic material
  • H01M 8/0284 - Organic resinsOrganic polymers
  • H01M 8/08 - Fuel cells with aqueous electrolytes

60.

MATERIAL AND ITS USE IN TRIBOELECTRIC NANOGENERATOR

      
Application Number 18750593
Status Pending
Filing Date 2024-06-21
First Publication Date 2025-02-13
Owner CITY UNIVERSITY OF HONG KONG (Hong Kong)
Inventor
  • Bo, Xiangkun
  • Daoud, Walid A.
  • Li, Weilu
  • Zhao, Hong

Abstract

A material for triboelectric nanogenerator comprising a biomass-based material co-doped with a hygroscopic agent and a metal salt, wherein: the biomass-based material includes any one of a saccharide-based material; the hygroscopic agent includes any one of a polyol-based compound, a sulfone-based compound, a tetrahydropyran-based, or a isocyanate-based compound; and the metal salt includes any one of a monovalent metal salt, a divalent metal salt or a trivalent metal salt. Use of the material in a triboelectric nanogenerator is also addressed.

IPC Classes  ?

  • C08L 1/28 - Alkyl ethers
  • B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
  • H02N 1/04 - Friction generators

61.

PHENAZINE DERIVATIVE-BASED ALKALINE BATTERY

      
Application Number 18366641
Status Pending
Filing Date 2023-08-07
First Publication Date 2025-02-13
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Cui, Huilin
  • Zhu, Jiaxiong

Abstract

The present invention relates to a phenazine derivative-based alkaline battery, which includes an anode formed by a phenazine derivative having 1 to 4 side group substituents, a cathode, a separator placed between the cathode and the anode and an electrolyte disposed in a space between the cathode and the anode. The present invention not only investigates the impact of hydroxyl substituents on electrochemical potential and reaction kinetics but also paves the way for the development of stable anodes for alkaline-based batteries. The phenazine derivative-based alkaline battery of the present invention exhibits a reversible capacity of at least 170 mAh g−1 at 0.2 A g−1, a power density of at least 20 KW kg−1 at 10 A g−1, a, and a stable cyclability over 9000 cycles.

IPC Classes  ?

  • H01M 6/04 - Cells with aqueous electrolyte
  • C07D 241/46 - Phenazines
  • H01M 4/32 - Nickel oxide or hydroxide electrodes
  • H01M 4/60 - Selection of substances as active materials, active masses, active liquids of organic compounds
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/66 - Selection of materials

62.

WIDE-BAND PHOTODETECTORS USING THERMOELECTRIC MATERIALS

      
Application Number 18366643
Status Pending
Filing Date 2023-08-07
First Publication Date 2025-02-13
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ho, Johnny Chung Yin
  • Zhang, Yuxuan
  • Meng, You

Abstract

Visible and infrared radiation photothermoelectric effect photodetectors are provided. The photodetectors are formed on substrates having a low thermal diffusivity of less than 0.05 mm2/sec. A thermoelectric metal chalcogenide film is formed on the low thermal diffusivity substrate. At least two symmetric electrodes are formed on the thermoelectric metal chalcogenide film such that the thermoelectric metal chalcogenide film forms a channel between the electrodes. The photodetector has a responsivity of at least approximately 65 V W−1 for 1550 nm illumination and a response time less than approximately ˜60 ms. The photodetector photoresponse is tunable via manipulation of local illumination. Examples of photodetectors use Bi2Se3, Bi2Te3, and SnSe2 on flexible polymeric substrates. By using large-area thermoelectric films with a photothermal detection mechanism, and modulating responsivity via thermal coupling, photodetector arrays for wearable electronics and integrated optoelectronic circuits may be created.

IPC Classes  ?

  • G01J 5/14 - Electrical features thereof
  • H10N 10/01 - Manufacture or treatment
  • H10N 10/852 - Thermoelectric active materials comprising inorganic compositions comprising tellurium, selenium or sulfur

63.

HYDRATION-RESPONSIVE SHAPE-MEMORY KERATIN COMPOSITE FIBERS AND FABRICATION METHODS THEREOF

      
Application Number 18770691
Status Pending
Filing Date 2024-07-12
First Publication Date 2025-02-06
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Hu, Jinlian
  • Xu, Xiaoyun

Abstract

Hydration-responsive shape-memory keratin composite fibers are provided. These fibers have a keratin network structure formed by keratin α-helices bonded by disulfide bonds. Incorporated within the structure are cellulose nanocrystals (CNCs), which provide hydrogen bonds and stabilize the α-helix structure, introducing a hydration-responsive switch. Specifically, the CNCs are configured to arrange and connect the keratin α-helices, aligning their coil axis along the fiber axis.

IPC Classes  ?

  • A61F 13/01 - Non-adhesive bandages or dressings
  • A61L 15/28 - Polysaccharides or their derivatives
  • A61L 15/32 - Proteins, polypeptidesDegradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
  • A61L 15/42 - Use of materials characterised by their function or physical properties
  • D01D 5/06 - Wet spinning methods
  • D01F 1/10 - Other agents for modifying properties
  • D01F 4/00 - Monocomponent artificial filaments or the like of proteinsManufacture thereof
  • D01F 11/02 - Chemical after-treatment of man-made filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
  • F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like

64.

Point cloud geometry compression

      
Application Number 18363169
Grant Number 12288367
Status In Force
Filing Date 2023-08-01
First Publication Date 2025-02-06
Grant Date 2025-04-29
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Wu, Xinju
  • Wang, Shiqi

Abstract

A method for learning-based point cloud geometry compression includes: given a source point cloud, regressing an aligned mesh that is driven by a set of parameters from a deformable template mesh, quantizing the set of parameters into a parameter bitstream, generating an aligned point cloud from the quantized parameters by mesh manipulation and mesh-to-point-cloud conversion, extracting features from both the source point cloud and the aligned point cloud based on sparse tensors including coordinates and features, the coordinates being encoded into a coordinate bitstream, warping the features of the aligned point cloud onto the coordinates of the source point cloud, obtaining residual features through feature subtraction, processing the residual features using an entropy model into a residual feature bitstream, and obtaining a reconstructed point cloud by processing the parameter bitstream, the coordinate bitstream and the residual feature bitstream.

IPC Classes  ?

65.

Facilitating encoding of video data using neural network

      
Application Number 18364821
Grant Number 12368864
Status In Force
Filing Date 2023-08-03
First Publication Date 2025-02-06
Grant Date 2025-07-22
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Mao, Yunhao
  • Wang, Shiqi

Abstract

A computer-implemented method for facilitating encoding of video data. The method includes performing an operation to determine prediction residuals associated with a unit of the video data, and, processing, using a neural network arrangement, the prediction residuals associated with the unit of the video data to determine model parameters associated with a rate-distortion model for the unit of the video data. The model parameters are arranged to facilitate encoding of at least the unit of the video data. The method can be applied to multiple ones of such unit of the video data.

IPC Classes  ?

  • H04N 19/149 - Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
  • H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
  • H04N 19/169 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding

66.

TRAINING AND/OR OPERATING GRAPH NEURAL NETWORK BASED RECOMMENDATION SYSTEM

      
Application Number 18358314
Status Pending
Filing Date 2023-07-25
First Publication Date 2025-01-30
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Luo, Sichun
  • Song, Linqi

Abstract

A method for training a graph neural network based recommendation system. The method includes receiving and processing a dataset to generate graph representation data. The dataset includes user data associated with users, item data associated with items, and user-item interaction data associated with interactions between users and items. Some items have less user-item interactions than some other items. The graph representation data includes data associated with user nodes, data associated with item nodes, and data associated with user-item interaction edges. Some item nodes have less user-item interaction edges than some other item nodes. The method further includes processing the graph representation data to obtain modified graph representation data, which can facilitate learning or determining of representations of at least some of the item nodes with less user-item interactions. The method further includes training the graph neural network based recommendation system based at least partly on the modified graph representation data.

IPC Classes  ?

67.

METHOD FOR SYNTHESIZING NOBLE METAL-SEMICONDUCTOR HETEROSTRUCTURES AND PHOTOCATALYTIC SYSTEM FOR SIMULTANEOUSLY PHOTOCATALYTIC CONVERSION OF CARBON DIOXIDE AND MICROPLASTIC INTO CARBON MONOXIDE

      
Application Number 18355417
Status Pending
Filing Date 2023-07-20
First Publication Date 2025-01-23
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhang, Hua
  • Zhai, Li
  • Li, Zijian
  • Yang, Hua

Abstract

A method for synthesizing noble metal-semiconductor heterostructures includes the following steps S1 to S6. Step S1: noble metal seeds are formed. Step S2: at least one metal precursors including a first metal and a first solvent are mixed in a first reactor chamber, so as to obtain a first solution comprising a first mixture. Step S3: the first solution is heated with a first heating process, so as to obtain a transparent solution. Step S4: the noble metal seeds, the transparent solution, and a second solvent are mixed, so as to obtain a second solution. Step S5: the second solution is heated with a second heating process to grow a semiconductor structure containing the first metal on the noble metal seeds, thereby forming the noble metal-semiconductor heterostructures therein. Also, a photocatalytic system including the aforesaid noble metal-semiconductor heterostructures is provided.

IPC Classes  ?

  • H01L 29/267 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, elements provided for in two or more of the groups , , , , in different semiconductor regions
  • B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • H01L 29/04 - Semiconductor bodies characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
  • H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions

68.

HYDROCHROMIC HALIDE PEROVSKITE, ITS PREPARATION AND USE THE SAME

      
Application Number 18356646
Status Pending
Filing Date 2023-07-21
First Publication Date 2025-01-23
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Feng
  • Chen, Jiangkun

Abstract

A hydrochromic halide perovskite includes a CsxTbyFz halide perovskite doped with a lanthanide ion dopant, which is capable of water-induced reversible phase transformation between pristine state and wet state, and exhibits reversible change in optical emission under ultraviolet excitation. A printable pattern comprising a film of the hydrochromic halide perovskite and a method for preparing the hydrochromic halide perovskite are also addressed.

IPC Classes  ?

  • C09K 11/66 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing germanium, tin or lead
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

69.

CARBON-DOPED ALLOY STEEL WITH SUPER ROOM-TEMPERATURE DUCTILITY AND ITS PREPARATION PROCESS

      
Application Number 18353102
Status Pending
Filing Date 2023-07-16
First Publication Date 2025-01-16
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yang, Tao
  • Li, Qian

Abstract

The present invention relates to a carbon-doped alloy steel with super room-temperature ductility, the carbon-doped alloy steel includes a chemical composition including 10-30 wt. % of nickel (Ni), 0.01-5 wt. % of silicon (Si), 0.01-2 wt. % of carbon (C), and 60-90 wt. % of iron (Fe). Different from traditional super-plastic alloys that could only obtain superplasticity at high homologous temperatures, the present invention introduces a super-ductile steel that exhibits a giant uniform elongation of over 100% at room temperature. Meanwhile, different from deformation softening in super-plastic alloys, super-ductile steels show an exceptional work-hardening capability, enabling them to obtain enough strength for application.

IPC Classes  ?

  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese

70.

AQUEOUS ZN||NO2 ELECTROCHEMICAL CELL

      
Application Number 18346852
Status Pending
Filing Date 2023-07-04
First Publication Date 2025-01-09
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhi, Chunyi
  • Ma, Longtao

Abstract

The present invention relates to an electrochemical cell based on an aqueous Zn∥NO2 system with a nano-NiO catalyst deposited as gas diffusion cathode, a metallic Zn foil as anode and a ZnCl2 aqueous solution as electrolyte. Importantly, the electrolyte can efficiently capture NO2, then convert it to NO2 and eventually to the value-added NH3, while simultaneously producing electric power. The obtained electrochemical cell exhibits bifunctional activity and stability (>100 h) towards reversible NO2 reduction and evolution reactions. A high cell-level energy density of 553.2 Wh·kg−1cell/1589.6 Wh·L−1cell from pouch cells (2.4 Ah) has been achieved. As an additional green feature, the produced NO2− by the Zn∥NO2 cell is subsequently converted to NH3 by a self-power mechanism, thereby servicing multiple key conversion steps in the nitrogen cycle all within a single device, paving the way to scalable, highly integrated solutions.

IPC Classes  ?

  • H01M 12/08 - Hybrid cellsManufacture thereof composed of a half-cell of a fuel-cell type and a half-cell of the secondary-cell type
  • C25B 1/27 - Ammonia
  • C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/88 - Processes of manufacture
  • H01M 4/90 - Selection of catalytic material

71.

PAINTING ANTENNA AND ANTENNA-INTEGRATED ARTICLE

      
Application Number 18735575
Status Pending
Filing Date 2024-06-06
First Publication Date 2025-01-09
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wong, Hang
  • Ng, Ling Chi
  • So, Kwok Kan
  • Lo, King Tung

Abstract

An antenna attachable to an article includes: (i) a radiation element, (ii) a ground plane opposing the radiation element, and (iii) a dielectric member disposed between the radiation element and the ground plane, separating the radiation element from the ground plane, at least part of a surface of the radiation element being coated with an electrically conductive ink that enables decorative design, such that the antenna is configured to be camouflaged against a surface of the article.

IPC Classes  ?

  • H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
  • H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
  • H01Q 1/48 - Earthing meansEarth screensCounterpoises

72.

MACHINE LEARNING WITH NEURAL NETWORKS FOR REDUCING BACTERIAL SEQUENCE CONTAMINATION IN PHAGE GENOME CONSTRUCTIONS

      
Application Number 18762693
Status Pending
Filing Date 2024-07-03
First Publication Date 2025-01-09
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Li, Shuaicheng
  • Wang, Ruohan
  • Pan, Guangze

Abstract

A machine learning (ML) based system with neural networks for reducing bacterial sequence contamination in constructing a phage genome utilizing next-generation sequencing (NGS) data is present. The system includes a phage NGS dataset and includes a NGS reads screener to filter out low-quality reads. An NGS integrator is employed to pre-assemble the filtered reads into contigs. The contigs are then classified using a contig classifier including an autoencoder based on a gapped pattern graph convolutional network (GP-GCN) to identify their origin phage genome so as to minimize a bacterial sequence contamination in the NGS dataset. A graph generator creates a copy-number-aware bipartite conjugate graph from the classified contigs. A phage sequence assembler analyses the graph for assembling the contigs into a potential phage sequence.

IPC Classes  ?

  • G16B 30/00 - ICT specially adapted for sequence analysis involving nucleotides or amino acids
  • G16B 40/20 - Supervised data analysis
  • G16B 45/00 - ICT specially adapted for bioinformatics-related data visualisation, e.g. displaying of maps or networks

73.

COMPOSITE MATERIAL AND ITS PREPARATION

      
Application Number 18347319
Status Pending
Filing Date 2023-07-05
First Publication Date 2025-01-09
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Du, Yuwei
  • Tso, Chi Yan
  • Liu, Sai
  • Ho, Tsz Chung

Abstract

A composite material including an optically transparent substrate; a thermochromic layer such as the one including a halide perovskite-based compound provided on the substrate; and a protective layer provided on the thermochromic layer; wherein the optically transparent substrate includes a wood-based material impregnated with a first polymer. A method for preparing the composite material is also addressed.

IPC Classes  ?

  • B05D 5/06 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
  • B05D 7/06 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
  • B27K 3/15 - Impregnating involving polymerisation
  • C09D 5/26 - Thermosensitive paints
  • C09D 5/29 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for multicolour effects
  • C09D 7/20 - Diluents or solvents
  • C09D 7/41 - Organic pigmentsOrganic dyes
  • C09D 7/63 - Additives non-macromolecular organic
  • C09D 15/00 - Woodstains
  • C09D 133/12 - Homopolymers or copolymers of methyl methacrylate

74.

Method for fabricating an aromatic polymer and a polymer fabricated according thereto

      
Application Number 18337743
Grant Number 12258668
Status In Force
Filing Date 2023-06-20
First Publication Date 2025-01-02
Grant Date 2025-03-25
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhang, Qichun
  • Wang, Xiang

Abstract

A method for fabricating a chemical composition containing an aromatic polymer, including the steps of: providing an anodic region and a cathodic region; providing an arene precursor; providing an electrochemical potential between the anodic region and the cathodic region; reacting the arene precursor via the electrochemical potential to form the composition, which further includes the step of conducting a cathodic reaction. A chemical composition containing an aromatic polymer prepared according to the method.

IPC Classes  ?

  • C25B 3/03 - Acyclic or carbocyclic hydrocarbons
  • C08G 61/10 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aromatic carbon atoms, e.g. polyphenylenes
  • C25B 3/29 - Coupling reactions

75.

Cryptosystem with utilizing split-radix discrete galois transformation

      
Application Number 18337391
Grant Number 12335368
Status In Force
Filing Date 2023-06-19
First Publication Date 2024-12-26
Grant Date 2025-06-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Li, Guangyan
  • Mao, Gaoyu
  • Cheung, Ray Chak Chung
  • Lam, Alan Hiu Fung

Abstract

A cryptosystem processor includes a twiddle factor memory, a SRDGT BFU, and a SPN. The twiddle factor memory has ZETA ports. The at least one SRDGT BFU has six input ports and four output ports and switchable among operation in DGT/IDGT/CWM mode, in which two of the input ports electrically communicate with the ZETA ports, respectively. The SRDGT BFU is configured to read and write two data points when working under the DGT/IDGT mode and is configured to read and write four data points when working under the CWM mode. The SPN electrically communicates with the SRDGT BFU and has at least one dual-port BRAM serving as memory cache configured to store polynomial, in which the SPN is configured to support the required number of data points reading or writing per cycle in the DGT/IDGT/CWM mode.

IPC Classes  ?

  • H04L 9/00 - Arrangements for secret or secure communicationsNetwork security protocols
  • H04L 9/06 - Arrangements for secret or secure communicationsNetwork security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems

76.

4H/FCC HETEROPHASE PLATINUM BASED NANOMATERIAL ON NANOROD FOR ELECTROCATALYTIC ALCOHOL OXIDATION

      
Application Number 18338379
Status Pending
Filing Date 2023-06-21
First Publication Date 2024-12-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhang, Hua
  • He, Zhen
  • Liao, Lingwen

Abstract

A heterogeneous catalyst for alcohol oxidation reaction of an anode reaction in direct alcohol fuel cells is provided. The catalyst includes at least one Pt-based nanoisland deposited on an Au nanorod by using a synthesis process to form 4H/face-centered cubic (fcc) heterophase. The synthesis process include steps as follows: mixing a material A selected from platinum(II) bis(acetylacetonate), vanadium(III) acetylacetonate, and titanium oxide acetylacetonate with a solvent B selected from oleylamine and 1-octadecene to form a first mixture; adding a dispersion of C 4H/fcc Au nanorods into the first mixture to form a second mixture, in which ratio of A to B is in a range from 0.5 to 2, and a ratio of A to C is in a range from 2 to 6; heating the second mixture; and recovering a 4H/fcc Pt-based heterostructure with Au from the second mixture.

IPC Classes  ?

  • H01M 4/92 - Metals of platinum group
  • H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
  • H01M 8/1011 - Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]

77.

MEDICAL IMAGE COMPRESSION AND/OR RECONSTRUCTION

      
Application Number 18338801
Status Pending
Filing Date 2023-06-21
First Publication Date 2024-12-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Liu, Xiangrui
  • Wang, Meng
  • Wang, Shiqi

Abstract

A method for compressing three-dimensional (3D) medical image. The method includes obtaining image data of a 3D medical image, performing a data conversion operation to convert the image data of the 3D medical image into video data of a sequence of frames each corresponding to a respective 2D image, and performing a video encoding operation to encode the video data of the sequence of frames to obtain encoded content data. The encoded content data can be used for reconstructing the 3D medical image.

IPC Classes  ?

  • G06T 9/00 - Image coding
  • G06T 3/00 - Geometric image transformations in the plane of the image
  • G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing

78.

LARGE-AREA AND FREESTANDING METAL-BASED NANOMEMBRANE ELECTROCATALYST FOR SUSTAINABLE HYDROGEN PRODUCTION

      
Application Number 18741839
Status Pending
Filing Date 2024-06-13
First Publication Date 2024-12-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yang, Yong
  • Gao, Xiang
  • Teng, Yun
  • Park, Minhyuk

Abstract

An easy-to-implement method has been developed to create ultrathin Pt nanomembranes, which catalyse the HER at a cost significantly lower than commercial Pt/C and comparable to non-noble metal electrocatalysts. These Pt nanomembranes consist of highly distorted Pt nanocrystals and exhibit a heterogeneous elastic strain field, a characteristic rarely seen in conventional crystals. This unique feature results in significantly higher electrocatalytic efficiency compared to various forms of Pt electrocatalysts, including Pt/C, Pt foils, and numerous Pt single-atom or single-cluster catalysts.

IPC Classes  ?

  • C25B 11/037 - Electrodes made of particles
  • B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
  • B82Y 40/00 - Manufacture or treatment of nanostructures
  • C25B 1/04 - Hydrogen or oxygen by electrolysis of water
  • C25B 11/056 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the substrate or carrier material consisting of textile or non-woven fabric
  • C25B 11/065 - Carbon
  • C25B 11/081 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound the element being a noble metal
  • H01M 8/10 - Fuel cells with solid electrolytes
  • H01M 8/1018 - Polymeric electrolyte materials

79.

SYSTEM AND METHOD FOR COMPRESSING AND/OR RECONSTRUCTING MEDICAL IMAGE

      
Application Number 18625551
Status Pending
Filing Date 2024-04-03
First Publication Date 2024-12-26
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Liu, Xiangrui
  • Wang, Shiqi

Abstract

A method for compressing a 3D medical image includes the steps of receiving a 3D medical image, partitioning the 3D medical image into a plurality of first slices, encoding the plurality of the first slices by a lossy codec into first bitstreams, decoding the first bitstreams by the lossy codec to obtain a plurality of second slices, computing a plurality of residues by comparing the plurality of the first slices and the plurality of the second slices, encoding the plurality of the residues by a lossless codec to obtain a plurality of encoded residues, and outputting the first bitstreams and the plurality of the encoded residues as compressed image data. Each residue corresponds to one of the first slices and its corresponding second slice. Experimental results on prevailing 3D medical image datasets demonstrate that the proposed method achieves promising compression performance and outperforms state-of-the-art methods.

IPC Classes  ?

  • G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
  • H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

80.

Method and system for learned video compression

      
Application Number 18338731
Grant Number 12348743
Status In Force
Filing Date 2023-06-21
First Publication Date 2024-12-26
Grant Date 2025-07-01
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Guo, Haifeng
  • Wang, Shiqi
  • Ye, Dongjie

Abstract

t).

IPC Classes  ?

  • H04N 19/42 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
  • H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
  • H04N 19/139 - Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/85 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression

81.

METHODS FOR IMPROVING HEALTH OF FISH, USE OF ZINC OXIDE PARTICLES FOR THE PREPARATION OF FISH FEED, METHODS FOR PREPARING FISH FEED FOR FISH, AND FISH FEED THEREOF

      
Application Number 18329944
Status Pending
Filing Date 2023-06-06
First Publication Date 2024-12-19
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Wenxiong
  • Ma, Shuoli

Abstract

The present invention is concerned with a method of improving health of fish. The method has a step of feeding the fish with a fish feed, wherein the fish feed in its dried state has 60-93.35 mg/kg of zinc oxide (ZnO) particles.

IPC Classes  ?

  • A23K 20/20 - Inorganic substances, e.g. oligo-elements
  • A23K 50/80 - Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs

82.

PHOTOVOLTAICS PANEL, PHOTOVOLTAICS SYSTEM AND EVAPORATING SYSTEM FOR PHOTOVOLTAICS SYSTEM

      
Application Number 18667109
Status Pending
Filing Date 2024-05-17
First Publication Date 2024-12-19
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wu, Wei
  • Li, Fuxiang

Abstract

A photovoltaics (PV) panel includes a PV module (102, 202) with a front face (102a, 202a) for exposure to sunlight and absorbing solar energy for conversion to electric energy and a back face opposite to the front face, and an evaporator (104, 204, 312) engaged with the back face of the PV module, an upper end (106, 206) of the evaporator being in close proximity to or in contact with a water source for absorbing the water by capillary action, the evaporator being of a structure allowing the water to move through, and the PV module being in a heat-transferrable relationship with the water moving through the evaporator.

IPC Classes  ?

  • H02S 40/42 - Cooling means
  • F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
  • F28D 21/00 - Heat-exchange apparatus not covered by any of the groups

83.

TACTILE SENSOR, TOUCH DEVICE, AND MANUFACTURING METHOD OF TACTILE SENSOR

      
Application Number 18736519
Status Pending
Filing Date 2024-06-06
First Publication Date 2024-12-19
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Hu, Jinlian
  • Zhi, Chuanwei
  • Shi, Shuo

Abstract

A tactile sensor comprising flexible electrodes and triboelectric layers is provided. The first triboelectric layer is disposed on the first flexible electrode. The second triboelectric layer is disposed on the second flexible electrode. The first and second triboelectric layers cover a same area. The first and second triboelectric layers are located between the first and second flexible electrodes. The second triboelectric layer keeps a distance from the first triboelectric layer when no external force is applied. The first triboelectric layer comprises MXene and polyvinylidene fluoride (PVDF). The first triboelectric layer and the second triboelectric layer have different triboelectric properties and form a triboelectric nanogenerator. A touch device comprising the tactile sensor and a manufacturing method of the tactile sensor are also provided.

IPC Classes  ?

  • G01L 1/00 - Measuring force or stress, in general
  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • H02N 1/04 - Friction generators

84.

PROTOTYPING APPLICATIONS OF SPATIALLY AWARE SMART OBJECTS USING AUGMENTED REALITY

      
Application Number 18335559
Status Pending
Filing Date 2023-06-15
First Publication Date 2024-12-19
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Fu, Hongbo
  • Ye, Hui
  • Xiao, Chufeng

Abstract

One or more devices, systems, methods and/or non-transitory, machine-readable mediums are described herein for prototyping applications of spatially aware smart objects using augmented reality (AR). In an embodiment, a system can comprise a memory that stores computer-executable components, and a processor that executes the computer-executable components stored in the memory. The computer-executable components comprise a spatial detection component that determines and tracks spatial positions and orientations of one or more objects in association with moving the one or more objects within a real-world environment, and an interface component comprising a visual programming user interface that facilitates prototyping spatial events and corresponding effects associated with the moving of one or more objects based on the relative spatial positions.

IPC Classes  ?

  • G06F 8/34 - Graphical or visual programming
  • G06F 11/36 - Prevention of errors by analysis, debugging or testing of software

85.

Backbone-engineered highly efficient polymer hole transporting materials, inverted perovskite solar cells made therefrom, and manufacturing methods therefor

      
Application Number 18336314
Grant Number 12245495
Status In Force
Filing Date 2023-06-16
First Publication Date 2024-12-19
Grant Date 2025-03-04
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhu, Zonglong
  • Wu, Xin
  • Sun, Xianglang

Abstract

The invention develops a novel hole-transporting material (HTM), PTAA-P1 and PTAA-P2 via the backbone engineering strategy to modulate wettability and promote anchoring. The HTM properties can be effectively modified by varying the linkage sites of incorporated pyridine units. The 3,5-linked PTAA-P1 particularly demonstrates a more regulated molecular configuration for interacting with perovskites, forming a highly crystalline perovskite film with uniform back contact and reduced defect density. The invention also develops the perovskite solar cell including the novel HTM with remarkable PCE efficiency and stability for small-area and large-area solar cells. The invention also develops the method for fabricating the perovskite solar cell.

IPC Classes  ?

  • H10K 85/10 - Organic polymers or oligomers
  • H10K 30/86 - Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 77/10 - Substrates, e.g. flexible substrates
  • H10K 30/50 - Photovoltaic [PV] devices
  • H10K 30/85 - Layers having high electron mobility, e.g. electron-transporting layers or hole-blocking layers

86.

Absorption Carnot battery

      
Application Number 18389833
Grant Number 12168944
Status In Force
Filing Date 2023-12-20
First Publication Date 2024-12-17
Grant Date 2024-12-17
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wu, Wei
  • Sui, Yunren
  • Lin, Haosheng
  • Ding, Zhixiong

Abstract

The present invention provides an absorption-desorption based Carnot battery designed to achieve a high-efficiency, large-density, and low-loss conversion battery system for power-heat-power purpose. Based on the rational operating strategies, the current Carnot battery system design demonstrates outstanding energy storage density and round-trip efficiency, while the self-discharging loss is minimal even after prolonged standby time. The battery system of the present invention also enables further designs with flexibility in adopting different operating modes for versatile functions to provide electricity, heating, and cooling.

IPC Classes  ?

  • F01K 3/12 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having two or more accumulators
  • F01K 3/00 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein

87.

MICRONEEDLE, MICRONEEDLE PATCH, METHOD OF MANUFACTURE AND METHOD OF USE THEREOF

      
Application Number 18735676
Status Pending
Filing Date 2024-06-06
First Publication Date 2024-12-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Xu, Chenjie
  • Hu, Tianli

Abstract

A microneedle includes a base and a tip distal from the base, the microneedle being formed with an anisotropic porous composition including a plurality of channels extending in a substantially uniform direction through the microneedle from a base surface towards an outer surface defined by the tip, and the plurality of channels being adapted to enable flow of a fluid therein.

IPC Classes  ?

  • A61M 37/00 - Other apparatus for introducing media into the bodyPercutany, i.e. introducing medicines into the body by diffusion through the skin
  • A61B 10/00 - Instruments for taking body samples for diagnostic purposesOther methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determinationThroat striking implements
  • A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
  • B29C 35/16 - Cooling
  • B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor
  • B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
  • B29C 39/38 - Heating or cooling
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/20 - Inserts
  • B29K 705/00 - Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
  • B29L 31/00 - Other particular articles

88.

TRAINING AND OPERATING NEURAL NETWORK BASED RANKING MODEL

      
Application Number 18330541
Status Pending
Filing Date 2023-06-07
First Publication Date 2024-12-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Luo, Sichun
  • Song, Linqi

Abstract

A computer-implemented method for training a neural network based ranking model includes performing a training data augmentation operation on a set of training data to generate a set of synthesized training data, and training a neural network based ranking model using the set of training data and the set of synthesized training data. The set of training data includes, for each of a plurality of queries, respective query-document data and respective relevance judgement data. The query-document data for a query includes data associated with a plurality of query-documents pairs for the query. The relevance judgement data for a query includes one or more sets of user feedback data associated with the query. The set of training data has an imbalanced training data distribution and the set of synthesized training data is arranged for use to reduce training data distribution imbalance of the set of training data.

IPC Classes  ?

89.

COMPOSITE MATERIAL AND PREPARATION FOR THE SAME

      
Application Number 18330714
Status Pending
Filing Date 2023-06-07
First Publication Date 2024-12-12
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Liu, Sai
  • Tso, Chi Yan

Abstract

A composite material comprising a first layer of thermochromic perovskite; a second layer of antireflection material including an organic or inorganic polymer deposited on the first layer; and a third layer of hydrophobic material deposited on the second layer. A method for preparing the composite material is also addressed.

IPC Classes  ?

  • C03C 17/42 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating of an organic material and at least one non-metal coating
  • C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
  • C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
  • C09D 5/26 - Thermosensitive paints
  • C09D 5/29 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for multicolour effects
  • C09D 183/16 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon onlyCoating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
  • C09K 9/02 - Organic tenebrescent materials

90.

OPTICAL FIBER BASED OPTICAL RADIATION MODULATION DEVICE

      
Application Number 18325403
Status Pending
Filing Date 2023-05-30
First Publication Date 2024-12-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wang, Lidai
  • Chen, Jiangbo

Abstract

An optical radiation modulation device that includes two or more optical fibers arranged optically in parallel, a first coupler coupled with the optical fibers, and a second coupler coupled with the optical fibers. The first coupler is operable to receive a single-wavelength optical radiation and to provide or distribute the single-wavelength optical radiation to the optical fibers. The second coupler is operable to receive optical radiations outputted by the optical fibers. The optical fibers include, at least: a first optical fiber operable to modulate the single-wavelength optical radiation provided or distributed to the first optical fiber to generate a multi-wavelength optical radiation for output to the second coupler; and a second optical fiber.

IPC Classes  ?

  • H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
  • G01N 29/24 - Probes

91.

COMPACT AND BROADBAND DOHERTY POWER AMPLIFIER

      
Application Number 18203323
Status Pending
Filing Date 2023-05-30
First Publication Date 2024-12-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Chan, Wing Shing
  • Zhou, Liheng
  • Zhou, Xinyu

Abstract

A Doherty power amplifier that includes an input, an output, a main power amplification device connected between the input and the output; and an auxiliary power amplification device connected between the input and the output. The auxiliary power amplification device is arranged in parallel with the main power amplification device. The Doherty power amplifier further includes a first dual-mode impedance transformer connected between the main power amplification device and the output, and a second dual-mode impedance transformer between the auxiliary power amplification device and the output. The first and second dual-mode ITs each is adapted to convert an input impedance of a corresponding one of the main and auxiliary power amplification devices to a load impedance at the output, at two frequencies simultaneously.

IPC Classes  ?

  • H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
  • H03F 1/42 - Modifications of amplifiers to extend the bandwidth
  • H03F 1/56 - Modifications of input or output impedances, not otherwise provided for
  • H03F 3/21 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only

92.

PLATINUM-BASED PHOTOINITIATOR AND PHOTOCROSSLINKER, THEIR USE FOR ADDUCT FORMATION

      
Application Number 18326243
Status Pending
Filing Date 2023-05-31
First Publication Date 2024-12-05
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhu, Guangyu
  • Xu, Jiaqian

Abstract

A platinum-based adduct including a substrate to which a photolyzed active platinum species is attached, of the photolyzed platinum active species is generated from a platinum(IV) complex having a structure of Formula (Ia. A method of preparing the platinum-based adduct. An antibacterial platinum-based adduct. Uses of the platinum(IV) complex as a photoinitiator for hydrogelation, and as a photocrosslinker for hydrogelation or protein labeling are also addressed.

IPC Classes  ?

93.

Quantum meta-device for ultrasensitive displacement metrology

      
Application Number 18490929
Grant Number 12326665
Status In Force
Filing Date 2023-10-20
First Publication Date 2024-12-05
Grant Date 2025-06-10
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Fan, Yubin
  • Chen, Mu Ku
  • Tsai, Din Ping

Abstract

Displacement measurement systems, measurement methods and EUV lithography machines for quantum meta-structure elements are disclosed, which include: an entangled state light source generator, a meta-device, a collimating lens, a polarizing beam splitter, and a computing section. Left-rotation photon and the right-rotation photon are projected to the polarizing beam splitter, and the correlation between output ports of two polarizing beam splitters is counted for reading to measure the displacement of the meta-device element. The displacement of the meta-structure element is measured in a manner that realizes the correlation between the left-rotation photons and the right-rotation photons.

IPC Classes  ?

  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
  • G01J 1/16 - Photometry, e.g. photographic exposure meter by comparison with reference light or electric value using electric radiation detectors
  • G01J 1/44 - Electric circuits
  • G02F 1/35 - Non-linear optics

94.

Flexible perovskite solar cells and fabrication thereof

      
Application Number 18203394
Grant Number 12284858
Status In Force
Filing Date 2023-05-30
First Publication Date 2024-12-05
Grant Date 2025-04-22
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Zhu, Zonglong
  • Gao, Danpeng
  • Li, Bo

Abstract

An ammonium acetate selected from the group of pentylammonium acetate, phenylethylammonium acetate, 2-([1,1′-biphenyl]-4-yl) ethan-1-amine acetate, butanammonium acetate, hexylammonium acetate, octylammonium acetate, phenylbutanammonium acetate, and any combination thereof, is used to modify a perovskite layer in a perovskite solar cell. A perovskite solar cell includes a perovskite layer and an interface modification layer that is in contact with the perovskite layer and includes at least one ammonium acetate provided herein. A method of preparing the inverted perovskite solar cell.

IPC Classes  ?

  • H10K 30/00 - Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
  • H01G 9/00 - Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devicesProcesses of their manufacture
  • H01G 9/20 - Light-sensitive devices
  • H10K 30/50 - Photovoltaic [PV] devices
  • H10K 85/50 - Organic perovskitesHybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

95.

DIRECT SYNTHESIS OF IMPROVED SUPERHYDROPHOBIC CARBON NITRIDE CO-PRODUCTS, AND IMPROVED SUPERHYDROPPBIC CARBON NITRIDE CO-PRODUCTS THEREOF

      
Application Number 18321845
Status Pending
Filing Date 2023-05-23
First Publication Date 2024-11-28
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ly, Thuc Hue
  • Thi, Quoc Huy
  • Man, Ping

Abstract

The present invention is concerned with a method of direct synthesis of co-products of at a first co-product and a second co-product. The first co-product is superhydrophilic carbon nitride thin film and the second co-product is superhydrophilic carbon nitride powder. The method has a step of using a guanidine carbonate salt as a precursor material. The present invention is also concerned with carbon nitride co-products. The carbon nitride co-products has a first co-product of superhydrophilic carbon nitride thin film and a second co-product of superhydrophilic carbon nitride powder. The superhydrophilic carbon nitride thin film has chemical formula of CNx, wherein x is 0.86-1.04, and the superhydrophilic carbon nitride powder has a chemical formula of g-C3N4.

IPC Classes  ?

  • C01B 21/06 - Binary compounds of nitrogen with metals, with silicon, or with boron
  • B01J 27/24 - Nitrogen compounds
  • B01J 35/00 - Catalysts, in general, characterised by their form or physical properties

96.

Dielectric Antennas for Integrated Sensing and Communication

      
Application Number 18317209
Status Pending
Filing Date 2023-05-15
First Publication Date 2024-11-21
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Wong, Hang
  • Sun, Wenjian

Abstract

A dielectric antenna that includes a substrate layer, a ground layer on top of the substrate layer, and a dielectric body on top of the ground layer. The dielectric body has an elongated shape. The dielectric antenna further contains an electric wall structure on a top of the dielectric body for cutting links among higher-order modes of the dielectric antenna. The invention aims to investigate novel antenna solutions for integrated sensing and communication (ISAC) applications.

IPC Classes  ?

  • H01Q 9/04 - Resonant antennas
  • H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
  • H01Q 1/48 - Earthing meansEarth screensCounterpoises

97.

METHODS OF GENERATING A LUBRICATION INTERFACE, METHODS OF ENHANCHING LUBRICATION OF MOVING PARTS AND LUBRICANTS

      
Application Number 18317962
Status Pending
Filing Date 2023-05-16
First Publication Date 2024-11-21
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Ly, Thuc Hue
  • Thi, Quoc Huy

Abstract

The present invention is concerned with a method of generating a lubrication interface. The method has the steps of a) providing a target substrate and a growth substrate adjacent the target substrate with a confinement space defined therebetween, b) allowing a predetermined amount of water onto a surface of the target substrate in the confinement space thus forming a water layer, c) adding a predetermined amount of a sample of a molybdenum disulfides (MoS2) layer on the water layer thus allowing the water in the water layer to bind with the surface of the molybdenum disulfides (MoS2) layer, d) cooling down the target substrate to cryogenic temperature so as to freeze the water layer thus forming a molybdenum disulfides (MoS2) ice layer on the target substrate, and e) detaching the growth substrate from the molybdenum disulfides (MoS2) ice layer thus leaving the molybdenum disulfides (MoS2) ice layer.

IPC Classes  ?

  • C10M 103/06 - Metal compounds
  • C10M 173/02 - Lubricating compositions containing more than 10% water not containing mineral or fatty oils
  • C10M 177/00 - Special methods of preparation of lubricating compositionsChemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes

98.

QUALITY-BASED PROCESSING OF VIDEO

      
Application Number 18650638
Status Pending
Filing Date 2024-04-30
First Publication Date 2024-11-21
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Kwong, Sam Tak Wu
  • Mao, Yunhao
  • Wang, Shiqi

Abstract

There is provided a computer-implemented method for processing a video. The computer-implemented method includes: (a) determining a target frame-level quality required for a frame of the video to be encoded, the determining of the target frame-level quality is based on, at least, a rate-quantization (R-Q) model that relates bit-rate and quantization step size and a quality-quantization model that relates quality measure and the quantization step size; and (b) determining one or more coding parameters for encoding the frame based on the determined target frame-level quality.

IPC Classes  ?

  • H04N 19/146 - Data rate or code amount at the encoder output
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field

99.

GRAPHENE OXIDE-BASED FLUORESCENT SENSOR FOR BIOMOLECULAR DETECTION

      
Application Number 18632333
Status Pending
Filing Date 2024-04-11
First Publication Date 2024-11-21
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Lo, Pik Kwan Peggy
  • Li, Pan
  • Liu, Ling Sum
  • Wang, Fei
  • Leung, Hoi Man

Abstract

The present invention provides a stable and reliable biosensor (GO-TNA) composed of chemically modified TNA capture probes onto graphene oxide (GO) for detecting and imaging of target nucleic acids in vitro and in vivo, discriminating single nucleobase mismatch and monitoring target miRNA dynamic changes. The TNA capture probes in the invention brings significant improvement by 1000 times in the detection limit when compared to TNA probes itself. This detection platform is facile and cost-effective to prepare, which are critical advantages for real-time analysis, and thus brings new opportunities in the field of disease diagnosis for rapid and accurate detecting and imaging of a variety of disease-related nucleic acid molecules at the in vivo level. Apart from healthcare, they may also lead to potential applications in the areas of environmental analysis and food safety through detection of pesticides, antibiotics, or even foodborne pathogenic agents.

IPC Classes  ?

  • C12Q 1/6876 - Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
  • C12Q 1/6818 - Hybridisation assays characterised by the detection means involving interaction of two or more labels, e.g. resonant energy transfer

100.

WEARABLE ELECTRONIC DEVICE FOR PROVIDING OR AFFECTING SMELL

      
Application Number 18320495
Status Pending
Filing Date 2023-05-19
First Publication Date 2024-11-21
Owner City University of Hong Kong (Hong Kong)
Inventor
  • Yu, Xinge
  • Liu, Yiming
  • Jiao, Yanli
  • Park, Wooyoung

Abstract

A wearable electronic device for providing or affecting smell. The wearable electronic device includes one or more odor manipulation units and a control circuit arrangement operably coupled with the one or more odor manipulation units for operating the one or more odor manipulation units. Each of the one or more odor manipulation units is respectively operable to provide or affect smell perceivable by a user of the wearable electronic device.

IPC Classes  ?

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