The University of Waikato

New Zealand

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IPC Class
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging 3
A61F 2/28 - Bones 1
A61K 31/122 - Ketones having the oxygen atom directly attached to a ring, e.g. quinones, vitamin K1, anthralin 1
A61L 27/40 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material 1
A61L 27/42 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having an inorganic matrix 1
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Status
Pending 1
Registered / In Force 13
Found results for  patents

1.

METHOD FOR PRODUCTION OF VITAMIN K USING BIOFILM REACTORS

      
Application Number 17312673
Status Pending
Filing Date 2019-12-10
First Publication Date 2022-03-03
Owner
  • The Penn State Research Foundation (USA)
  • UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Demirci, Ali
  • Mahdinia, Ehsan
  • Berenjian, Aydin

Abstract

Provided are improved methods for Vitamin K, including but not necessarily limited to MK-7 production through bacterial fermentation using biofilm reactors. Fed-batch addition of carbon sources, such as glucose, are used as the base media in biofilm reactors. Fed-batch strategies are shown to be significantly effective in glucose-based medium, increasing the end-product concentrations to more than 2-fold higher than the level produced in suspended-cell bioreactors.

IPC Classes  ?

  • C12P 7/66 - Preparation of oxygen-containing organic compounds containing the quinoid structure

2.

METHOD FOR PRODUCTION OF VITAMIN K USING BIOFILM REACTORS

      
Application Number US2019065358
Publication Number 2020/123432
Status In Force
Filing Date 2019-12-10
Publication Date 2020-06-18
Owner
  • THE PENN STATE RESEARCH FOUNDATION (USA)
  • UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Demirci, Ali
  • Mahdinia, Ehsan
  • Berenjian, Aydin

Abstract

Provided are improved methods for Vitamin K, including but not necessarily limited to MK-7 production through bacterial fermentation using biofilm reactors. Fed-batch addition of carbon sources, such as glucose, are used as the base media in biofilm reactors. Fed-batch strategies are shown to be significantly effective in glucose-based medium, increasing the end-product concentrations to more than 2-fold higher than the level produced in suspended-cell bioreactors.

IPC Classes  ?

  • A61K 31/122 - Ketones having the oxygen atom directly attached to a ring, e.g. quinones, vitamin K1, anthralin
  • C07C 50/14 - Quinones the quinoid structure being part of a condensed ring system containing two rings with unsaturation outside the ring system, e.g. vitamin K1
  • C12R 1/125 - Bacillus subtilis

3.

ELECTRICAL INVERTER ASSEMBLY

      
Application Number NZ2017050020
Publication Number 2017/150989
Status In Force
Filing Date 2017-02-28
Publication Date 2017-09-08
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor Kularatna, Nihal

Abstract

In one aspect the invention provides an electrical inverter assembly arranged to connect to a direct current electrical supply and configured to supply alternating current to at least one electrical load. This inverter assembly includes at least one pair of inverters, being a primary inverter and a secondary inverter, where each inverter has a set of input terminals and output terminals. The invention also includes at least two banks of energy storage capacitors provided in association with each pair of primary and secondary inverters, and a capacitor switching structure associated with each pair of inverters. This capacitor switching structure is arranged to cyclically connect a discharged energy storage capacitor bank in series with the input terminals of the primary inverter and the direct current electrical supply to charge the capacitor bank, and to concurrently connect a charged energy storage capacitor bank with the input terminals of the secondary inverter to discharge the capacitor bank.

IPC Classes  ?

  • H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
  • H02M 7/483 - Converters with outputs that each can have more than two voltage levels
  • H02M 7/537 - Conversion of DC power input into AC 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, e.g. single switched pulse inverters
  • H02M 3/18 - Conversion of DC power input into DC power output without intermediate conversion into AC by dynamic converters using capacitors or batteries which are alternately charged and discharged, e.g. charged in parallel and discharged in series
  • H02M 9/04 - Conversion of DC or AC input power into surge output power with DC input power using capacitative stores

4.

A SURGICAL IMPLANT CONDUCTOR WITH INCREASED RADIO FREQUENCY ALTERNATING CURRENT RESISTANCE

      
Application Number NZ2016050089
Publication Number 2016/195513
Status In Force
Filing Date 2016-05-27
Publication Date 2016-12-08
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Mccabe, Steven Owen
  • Scott, Jonathan Brereton

Abstract

In one aspect the invention provides a surgical implant conductor formed from a length of conductive material which exhibits increased radio frequency alternating current resistance. This conductive material defines an exterior surface where at least a portion of the exterior surface of the conductor defines a region with a roughened surface. Preferably the roughening of the exterior surface increases the area of the exterior surface when compared to a non-roughened surface, resulting in a reduction in the effective cross-section area of the conductor used to transport alternating currents.

IPC Classes  ?

  • A61N 1/08 - Arrangements or circuits for monitoring, protecting, controlling or indicating
  • A61N 1/16 - Screening or neutralising undesirable influences from atmospheric or terrestrial radiation or fields
  • A61N 1/05 - Electrodes for implantation or insertion into the body, e.g. heart electrode

5.

SIGNAL HARMONIC ERROR CANCELLATION METHOD AND APPARATUS

      
Application Number NZ2015000022
Publication Number 2015/156684
Status In Force
Filing Date 2015-04-08
Publication Date 2015-10-15
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Dorrington, Adrian Andrew
  • Streeter, Lee Vincent

Abstract

In one aspect the invention provides a time of flight camera system which includes a time of flight transmitter arranged to transmit modulated radiation at a target, and a phase adjustment element configured to adjust the phase of a source modulation signal used to modulate the radiation transmitted at the target. This phase adjustment element provides a set of phase separated output signals, each output signal provided having one of a set phase offsets values applied, where at least one of these phase offset values is the cancellation phase value of another member of the set of phase offset values. The camera system also includes an image sensor modulated with the source modulation signal and configured to measure radiation reflected from a target, and a processor arranged to receive the image sensor measurements and being programmed to resolve range information from the measurements received by the image sensor.

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

6.

TIME OF FLIGHT CAMERA SYSTEM WHICH RESOLVES DIRECT AND MULTI-PATH RADIATION COMPONENTS

      
Application Number NZ2015000012
Publication Number 2015/133910
Status In Force
Filing Date 2015-03-06
Publication Date 2015-09-11
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Dorrington, Adrian Andrew
  • Whyte, Refael Zabdi

Abstract

The invention provides a time of flight camera system arranged to resolve the direct path component or the multi-path component of modulated radiation reflected from a target. The camera system includes a time of flight transmitter arranged to transmit modulated radiation at a target, and at least one pattern application structure operating between the transmitter and the target. The pattern application structure operates to apply at least one structured light pattern to the modulated transmitter radiation. The camera system also includes an image sensor configured to measure radiation reflected from a target. The camera system is arranged to resolve from the measurements received the contribution of direct source reflection radiation reflected from the target.

IPC Classes  ?

  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

7.

FLUID TEMPERATURE MODIFICATION APPARATUS

      
Application Number NZ2014000092
Publication Number 2014/189389
Status In Force
Filing Date 2014-05-21
Publication Date 2014-11-27
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor Kularatna, Alythwela Domingo Vithanage Nihal

Abstract

In one aspect the invention provides a fluid temperature modification apparatus which includes at least one temperature modification element associated with a fluid conduit. This temperature modification element or elements are located adjacent to an outlet of the fluid conduit. The apparatus also includes at least one energy storage capacitor, and at least one trigger switch which when operated connects one or more energy storage capacitors to a temperature modification element. The operation of a trigger switch at least partially discharges at least one energy storage capacitor to energise a temperature modification element which modifies the temperature of fluid in the conduit adjacent to the outlet port of the conduit.

IPC Classes  ?

  • F24H 9/20 - Arrangement or mounting of control or safety devices
  • F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium

8.

RESONANT MODULATION FOR LOW POWER RANGE IMAGING CAMERAS

      
Application Number US2012035594
Publication Number 2012/149422
Status In Force
Filing Date 2012-04-27
Publication Date 2012-11-01
Owner UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Conroy, Richard, Michael
  • Dorrington, Adrian, Andrew
  • Bamji, Cyrus

Abstract

An amplitude modulated continuous wave range imaging device has a signaling device configured to emit an intensity modulated illumination signal. An image sensor is configured to capture a plurality of images of a reflection of the modulated illumination signal. The captured images include intensity and/or phase components for a plurality of pixels of the image sensor. Each pixel includes a first modulation terminal having a first capacitive component. A first driver is configured to charge a first set of modulation terminals of the plurality of pixels. A second driver is configured to charge a second set of modulation terminals of the plurality of pixels. A charge transfer circuit is connected between the first set of modulation terminals and the second set of modulation terminals. The charge transfer circuit is configured to transfer charge between the first set of modulation terminals and the second set of modulation terminals.

IPC Classes  ?

  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
  • G01S 17/32 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
  • G01S 17/36 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal

9.

DIGITAL CONTROL FOR CONTROLLING AND LINEARIZING AN AC IMPEDANCE

      
Application Number NZ2009000064
Publication Number 2009/134151
Status In Force
Filing Date 2009-04-29
Publication Date 2009-11-05
Owner THE UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Kularatna, Nihal, Aluthwela, Domingo, Vithanage
  • Jinadasa, Mutunacharige, Damayanthi, Chandani, Srimathi, Kumari

Abstract

An apparatus for regulating AC power of a power source in a power circuit is provided. The apparatus includes a full-wave bridge rectifier, a power transistor array, and a controller. The full-wave bridge rectifier is configured to receive an AC input from the power source. The power transistor array is connected to the full-wave bridge rectifier. The power transistor array is configured to receive the AC input from the full-wave bridge rectifier and to generate an AC signal. The power transistor array may include only a single transistor or a plurality of transistors connected in series, for example. The controller is connected to the power transistor array. The controller is configured to receive the AC signal from the power transistor array, or the output of the AC regulator in some embodiments, and to determine a correction output to send to the power transistor array to control an AC impedance of the power circuit to generate an AC output.

IPC Classes  ?

  • 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
  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

10.

VIBRATION SENSOR ASSEMBLY WITH AMBIENT NOISE DETECTION

      
Application Number NZ2008000064
Publication Number 2008/115084
Status In Force
Filing Date 2008-03-20
Publication Date 2008-09-25
Owner THE UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Cosgrove, Michael, Charles
  • Rosborough, Daniel, Brett
  • Scott, Jonathan, Brereton

Abstract

A sensor assembly for detecting vibrational energy on a target surface, including at least one target vibration transducer configured to measure vibrational energy associated with at least one target surface; and at least one environmental vibration transducer, each environmental vibration transducer being configured to measure vibrational energy in the immediate vicinity of the environmental vibration transducer wherein the environmental vibration transducer is vibrationally isolated from the target vibration transducer.

IPC Classes  ?

  • G01H 1/00 - Measuring vibrations in solids by using direct conduction to the detector
  • G01H 3/00 - Measuring vibrations by using a detector in a fluid
  • G08B 13/16 - Actuation by interference with mechanical vibrations in air or other fluid

11.

A MEDICAL PREPARATION

      
Application Number NZ2007000354
Publication Number 2008/069686
Status In Force
Filing Date 2007-12-06
Publication Date 2008-06-12
Owner THE UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Laird, Dougal, Francis
  • Mucalo, Michael, Roger
  • Dias, Subasinghe, Nissanke, George, Premalal, Jayantha

Abstract

A bone matrix, including: a bone matrix material, which has had organic material removed, and a replacement material that has replaced the organic material, the bone matrix characterised in that the bone matrix is formed from a single piece of bone.

IPC Classes  ?

  • A61L 27/40 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material
  • A61F 2/28 - Bones
  • A61L 27/42 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having an inorganic matrix
  • A61L 27/56 - Porous or cellular materials

12.

A METHOD FOR PURIFICATION OF METAL BASED ALLOY AND INTERMETALLIC POWDERS

      
Application Number NZ2007000351
Publication Number 2008/066398
Status In Force
Filing Date 2007-11-30
Publication Date 2008-06-05
Owner THE UNIVERSITY OF WAIKATO (New Zealand)
Inventor Zhang, Deliang

Abstract

This invention relates to a method for purifying metal alloy and intermetallic powders. Particularly, the present invention relates to a method for the reduction or elimination of the content of the dissolved oxygen and to remove the metal oxide inclusions from metal alloy and intermetallic powders including the steps of: a) placing the metal in powder form into a reaction apparatus; b) introducing a suitable carrier substance to the metal powder; and c) introducing calcium vapour into the reaction apparatus to create a reaction between the metallic powder and calcium vapour thereby removing inclusions in the metal as shown in Figure 11.

IPC Classes  ?

  • C22B 9/10 - General processes of refining or remelting of metalsApparatus for electroslag or arc remelting of metals with refining or fluxing agentsUse of materials therefor
  • C22B 34/12 - Obtaining titanium

13.

METHOD FOR PRODUCING METAL ALLOY AND INTERMETALLIC PRODUCTS

      
Application Number NZ2007000133
Publication Number 2007/139403
Status In Force
Filing Date 2007-05-31
Publication Date 2007-12-06
Owner The University of Waikato (New Zealand)
Inventor
  • Zhang, Deliang
  • Raynova, Stiliana Rousseva

Abstract

This invention relates to a method for producing alloy and intermetallic powders. Particularly to a method for the production of titanium based alloy and intermetallic powders. A first metal and a second metal oxide powder are mixed with a controlled metal/metal oxide molar ratio. This mixture is heated, becomes self propagating and leads to formation of a mixture of alloy liquid and oxide solid. Pressure is applied to separate the phases and upon cooling produces a metallic solid. Figure 1a shows an example of a solid crushed into a powder as produced by this method.

IPC Classes  ?

14.

METHOD AND SYSTEM FOR INDICATING THE LOCATION OF AN OBJECT

      
Application Number NZ2006000063
Publication Number 2006/104405
Status In Force
Filing Date 2006-03-30
Publication Date 2006-10-05
Owner THE UNIVERSITY OF WAIKATO (New Zealand)
Inventor
  • Bainbridge, David
  • Jones, Matthew
  • Warren, Nigel, Mendelsohn
  • Jones, Steven, Robert, Andrew

Abstract

An object location indication apparatus which includes a position determination system adapted to determine the position of the apparatus a plurality of audio channels, each connected to an audio output device wherein each channel is associated with a direction, an audio signal supply element adapted to supply an audio component signal to each channel, said plurality of audio component signals in combination providing a substantially continuous composite audio signal, wherein the audio signal supply element modulates each audio component signal depending on the direction of travel required to reach the object from the position determined for the apparatus.

IPC Classes  ?

  • G08G 1/0969 - Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
  • G01C 21/34 - Route searchingRoute guidance