National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kawai, Yu
Izumi, Kikuo
Itoh, Junichi
Watanabe, Hiroki
Abstract
In a DAB circuit including a first bridge and a second bridge, a boost circuit is shared by connecting reactors between a storage battery and the first bridge. In each leg of the first bridge, in order to increase an absolute value of a reactor current, an ON period of one switching element of a switching element on a high voltage side and a switching element on a low voltage side is provided, and then, an ON period of the other switching element is provided. An ON period length of the one switching element is set according to a control command value of a DC voltage input to the first bridge. An ON period length of the other switching element is set to a time length until an absolute value of the reactor current that has increased during the ON period of the one switching element returns to zero.
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
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
2.
NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR SODIUM ION SECONDARY BATTERY
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Honma, Tsuyoshi
Oda, Aoi
Yamauchi, Hideo
Tanaka, Ayumu
Tsunoda, Kei
Yamazaki, Yoshinori
Abstract
A negative electrode active material for a sodium ion secondary battery is provided, in which the negative electrode active material has a low initial irreversible capacity. The negative electrode active material for a sodium ion secondary battery includes a crystallized glass formed by precipitation of metallic Bi in a matrix containing at least one compound selected from Fe2O3 and CuO, and SiO2.
H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
C03C 4/14 - Compositions for glass with special properties for electro-conductive glass
C03C 14/00 - Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Oono, Shingo
Kimura, Tetsuya
Prithvi Sharan Sargunar
Abstract
This robot hand includes: a plurality of fluid pressure actuators that extend to one side in the axial direction, and that grasp a light bulb by bending in a direction crossing the axial direction; and a support member that spans the fluid pressure actuators with respect to at least one pair of the plurality of fluid pressure actuators, and that, together with the one pair of fluid pressure actuators, supports the light bulb by abutting the light bulb.
F15B 15/10 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit the motor being of diaphragm type
4.
PROTEIN IMMOBILIZATION CARRIER, PROTEIN IMMOBILIZATION CARRIER DISPERSION LIQUID, PROTEIN IMMOBILIZATION CARRIER HYDRATE, PROTEIN SUPPORT COMPLEX, AND ANTIBODY TESTING KIT
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
KYUSHU INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Kimura Reo
Chatani Sunao
Inui Masahiko
Motozuka Satoshi
Tagaya Motohiro
Abstract
Provided are: a protein immobilization carrier that can be produced with a simple method, exhibits little degeneration of protein that has been adsorbed, and demonstrates a high protein-binding activity; and a protein immobilization carrier dispersion liquid, a protein immobilization carrier hydrate, a protein support complex, and an antibody testing kit that use the protein immobilization carrier. The protein immobilization carrier is composed of an amorphous silica-based compound containing silicon (Si), oxygen (O), and chlorine (Cl). When, in a solid 294433222232344) is 0.30 or less. The molar concentration of chlorine atoms in the carrier as measured by X-ray fluorescence (XRF) analysis is 0.01 mol% or more.
National University Corporation Nagaoka University of Technology (Japan)
Sanoh Industrial Co., Ltd. (Japan)
Inventor
Aida, Hideo
Omiya, Natsuko
Abstract
Provided are a polishing state analysis prediction program, a storage, a cathodeluminescence device, and a polishing state analysis prediction method. The polishing state analysis prediction program to predict a future polishing state of a polishing-target substrate to be polished based on a cathodeluminescence image of the polishing-target substrate, the image being obtained by a cathodeluminescence method, the program, when executed by a computer, causing the computer to perform: calculating average light emission intensity data or average luminance data from the cathodeluminescence image of each predetermined time after start of polishing the substrate; and plotting the average light emission intensity data or the average luminance data, and deriving a formula representing a fitting curve resulted from the plotting by using a predetermined function.
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
OPT GATE CO., LTD. (Japan)
Inventor
Sakamoto, Moritsugu
Ono, Hiroshi
Noda, Kohei
Tanaka, Masayuki
Abstract
Provided is an optical measurement apparatus including: a polarized light irradiation unit 10 that irradiates a subject Ob with irradiation light of which polarization is controlled; and a polarization imaging unit 20 that images a polarization state of measurement light occurring due to scattering, reflection, absorption, or the like of the irradiation light by the subject Ob, calculates all or a part of Stokes parameters of the measurement light, and measures a variation of a polarized component occurring between the irradiation light and the measurement light due to the subject Ob. Since the subject is irradiated with irradiation light of which a polarization state is controlled, it is possible to acquire subject information that is difficult to measure in a case of irradiating the subject with natural light, that is, non-polarized irradiation light, and it is also possible to suppress noise or a decrease in contrast that occurs when measuring polarization by irradiating the subject with irradiation light of which a polarization state is unstable.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Honma, Tsuyoshi
Hiratsuka, Masafumi
Yamauchi, Hideo
Tanaka, Ayumu
Tsunoda, Kei
Yamazaki, Yoshinori
Abstract
Provided is a method for producing a positive electrode active material for an alkali ion secondary battery, the positive electrode active material containing a large amount of a transition metal and enabling operation of the battery. In the method for producing a positive electrode active material for an alkali ion secondary battery, in which the positive electrode active material contains 34 mol % or more of CrO+FeO+MnO+CoO+NiO, the method includes: a step of preparing a positive electrode active material precursor containing crystals; and a step of irradiating the positive electrode active material precursor with light to melt the crystals and amorphize at least a portion of the positive electrode active material precursor.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Araki Yushi
Kashihara Tatsuki
Kobayashi Koji
Ohishi Kiyoshi
Yokokura Yuki
Kobayashi Yuto
Abstract
[Problem] To suppress common-mode noise without changing the modulation method by outputting an identical voltage vector by using only a region capable of modulating a voltage vector outside the region capable of modulation in a modulation method for suppressing excitation of common-mode noise for which the region capable of modulation is limited. [Solution] A power conversion device 1 equipped with an inverter circuit 27 and a control device 21 for controlling the switching of a switching element. The control device 21 is equipped with: a modulation unit 50 which sets a partial region in a base voltage space, which is a voltage vector region capable of outputting in an inverter circuit, as a region capable of modulation; and a phase voltage command correction unit 40 for calculating a corrected voltage vector obtained by correcting the voltage vector to within the region capable of modulation when the voltage vector falls inside the base voltage space and outside the region capable of modulation. As a result, the modulation unit 50 outputs by using the corrected voltage vector.
H02M 7/48 - 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
9.
ULTRASONIC INSPECTION DEVICE AND ULTRASONIC INSPECTION UNIT
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Koyama, Tomohiro
Ihara, Ikuo
Wada, Shinji
Abstract
An ultrasonic inspection device includes: a longitudinal ultrasonic sensor configured to emit and receive a longitudinal ultrasonic wave; and an ultrasonic transducer unit made of metal and having the shape of a polyhedron. The ultrasonic transducer unit includes: an output surface configured to be disposed facing an object to be inspected; an input surface on which the longitudinal ultrasonic sensor is disposed; and a conversion surface configured to, when the longitudinal ultrasonic wave input through the input surface is reflected by the conversion surface, convert the longitudinal ultrasonic wave into a transverse ultrasonic wave such that the transverse ultrasonic wave propagates toward the output surface, the conversion surface being tilted at a predetermined angle with respect to an in-plane direction of the output surface. Thermal conductivity of the ultrasonic transducer unit is lower than thermal conductivity of the object to be inspected.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Hiwatari, Tenjiro
Sano, Sota
Satake, Akira
Ohishi, Kiyoshi
Yokokura, Yuki
Kobayashi, Yuto
Abstract
A power conversion device comprises: power conversion circuitry for converting DC power into AC power and supplying it into a load according to a switching state quantity defined by combinations among switching parameters of switching devices; a voltage output calculation device for calculating a voltage output value on the power conversion circuitry, based on the switching state quantity; an integration value calculation device for acquiring a voltage reference integration value and a voltage output integration value by integrating a voltage reference value and the calculated voltage output value; a switching update-determination unit for outputting an update signal of the switching state quantity, based on the voltage reference integration value, its allowance value, and the voltage output integration value; and a switching determination table for determining a switching state quantity of the switching devices, based on the voltage reference integration value, the voltage output integration value and the update signal.
H02M 7/5395 - 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 with automatic control of output wave form or frequency by pulse-width modulation
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
12.
VISCOSITY MEASUREMENT PIPING, VISCOMETER, AND METHOD FOR MEASURING VISCOSITY
G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
13.
POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING POLYMERIZATION CATALYST COMPOSITION, AND METHOD FOR PRODUCING CONJUGATED DIENE POLYMER
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Takahashi, Akinori
Nakano, Hiroaki
Takenaka, Katsuhiko
Toda, Tomoyuki
Abstract
A polymerization catalyst composition contains a rare earth element carboxylate, a phosphate ester represented by the following general formula (1):
A polymerization catalyst composition contains a rare earth element carboxylate, a phosphate ester represented by the following general formula (1):
A polymerization catalyst composition contains a rare earth element carboxylate, a phosphate ester represented by the following general formula (1):
(wherein Rs are each independently an alkyl group having 5 to 20 carbon atoms), and water.
C08F 4/54 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with other compounds thereof
C08F 4/606 - Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSI TY OF TECHNOLOGY (Japan)
Inventor
Araki Yushi
Kashihara Tatsuki
Kobayashi Koji
Ohishi Kiyoshi
Yokokura Yuki
Kobayashi Yuto
Abstract
[Problem] To provide a power conversion device which is capable of linear switching between pulse width modulation which has a high noise suppression effect but in which the modulation factor is limited, and pulse width modulation which has a lesser noise suppression effect but in which a high modulation factor can be achieved. [Solution] The present invention comprises: a first modulation unit 34 that performs pulse width modulation in which only odd-number voltage vectors are output in one control cycle and reduces common mode noise; a second modulation unit 35 that performs pulse width modulation in which a higher modulation factor than in the pulse width modulation by the first modulation unit 34 is achieved and which is capable of reducing common mode noise; a determination unit 45 that determines a zero-voltage output time in which to output a zero-voltage vector; and a selection unit 40 that, in an electrical angle single period, selects between the pulse width modulation by the first modulation unit and the pulse width modulation by the second modulation unit, on the basis of the zero-voltage output time determined by the determination unit.
H02M 7/48 - 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
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
15.
CRYSTAL OF EUROPIUM COMPOUND AND METHOD FOR PRODUCING CRYSTAL OF EUROPIUM COMPOUND
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Chatani, Sunao
Inui, Masahiko
Tagaya, Motohiro
Kataoka, Takuya
Motozuka, Satoshi
Abstract
The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2θ) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2θ) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2θ) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and
being at least one compound selected from compounds represented by formulae (1) to (4):
The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2θ) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2θ) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2θ) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and
being at least one compound selected from compounds represented by formulae (1) to (4):
EuClx (1)
The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2θ) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2θ) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2θ) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and
being at least one compound selected from compounds represented by formulae (1) to (4):
EuClx (1)
Eu(OH)2 (2)
The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2θ) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2θ) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2θ) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and
being at least one compound selected from compounds represented by formulae (1) to (4):
EuClx (1)
Eu(OH)2 (2)
Eu(OH)2Cl (3)
The present invention provides a crystal of a europium compound containing europium. The present invention enables the preparation of a crystal of a europium compound having a powder X-ray diffraction pattern having a first diffraction peak in diffraction angle (2θ) range of 34.3° to 36.1° in which a half width of the first diffraction peak is 1.8° or less, and/or having a second diffraction peak in diffraction angle (2θ) range of 28.6° to 29.6° and a third diffraction peak in diffraction angle (2θ) range of 36.8° to 38.4° in which a half width of the second diffraction peak is 1.0° or less and a half width of the third diffraction peak is 1.6° or less, and
being at least one compound selected from compounds represented by formulae (1) to (4):
EuClx (1)
Eu(OH)2 (2)
Eu(OH)2Cl (3)
EuOCl (4)
x is 0.05 or more and 5 or less.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Tsuda, Shingo
Tamida, Taichiro
Jiang, Weihua
Sugai, Taichi
Abstract
A pulse power supply device (1) has: a plurality of first inductors (Li1) that are located in a first column and that are connected in series; a plurality of second inductors (Li2) that are located in a second column and that are connected in series; a plurality of capacitors (Ci-1, Ci, Ci+1); a plurality of negative-electrode-side switching elements (Nswi1); a plurality of positive-electrode-side switching elements (Pswi2); a first positive-electrode terminal switching element (Pcon2) connected to the first inductor (Li1) located at one end among the plurality of first inductors (Li1) and a first output terminal (41); and a first negative-electrode terminal switching element (Ncon2) connected to the second inductor (Li2) located at one end among the plurality of second inductors (Li2) and the first output terminal (41).
H02M 9/04 - Conversion of dc or ac input power into surge output power with dc input power using capacitative stores
H03K 3/53 - Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kawai, Yu
Izumi, Kikuo
Itoh, Junichi
Watanabe, Hiroki
Abstract
In a DAB circuit constituted by a first bridge (10) and a second bridge (20), a boost circuit is shared by connecting reactors (L1, L2) between a storage battery (1) and the first bridge (10). In each of the legs (11, 12) of the first bridge (10), in order to increase the absolute values of reactor currents (L1, L2), the on-period of one switching element which is one of switching elements (Q11H, Q12H) on the high-voltage side and switching elements (Q11L, Q12L) on the low-voltage side is set, after which the on-period of the other switching element is set. The length of the on-period of the one switching element is set according to the control command value of a DC voltage V1. The length of the on-period of the other switching element is set to a length of time until the absolute values of the reactor currents (L1, L2) that have increased during the on-period of the one switching element return to zero.
H02M 3/28 - 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
18.
Composite of Silicate-Based Base Material and Rare-Earth Compound, Light-Emitting Nanoparticle, Cell Detection Method, Treating Method for Treating Non-Human Animal, Medical Device, and Method for Producing Composite of Silicate-Based Base Material and Rare-Earth Compound
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Chatani, Sunao
Inui, Masahiko
Tagaya, Motohiro
Kataoka, Takuya
Motozuka, Satoshi
Abstract
Provided are: a composite of a silicate-based base material and a rare-earth compound, having high light-emitting intensity and capable of being used as light-emitting particles, light-emitting nanoparticle including the same, a cell detection method, a method for treating an animal, a medical device, and a method for producing the composite of a silicate-based base material and a rare-earth compound. This composite of a silicate-based base material and a rare-earth compound includes elemental silicon (Si) and elemental oxygen (O), the rare-earth compound comprising at least one selected from a chloride of a rare-earth element and a fluoride of a rare-earth element, the silicate-based base material having a solid 29Si-NMR spectrum satisfying Q4/Q3 of 1.6 to 3.9 where Q4 represents a peak area derived from Si(OSi)4 and Q3 represents a peak area derived from HO—Si(OSi)3.
LIGHT-EMITTING NANOPARTICLES, CELL DETECTION METHOD USING SAME, ANIMAL TREATMENT METHOD, MEDICAL DEVICE, CELL VISUALIZATION METHOD, AND METHOD FOR REDUCING INJURY TO CELL
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
National Institute of Technology (Japan)
Inventor
Inui, Masahiko
Chatani, Sunao
Tagaya, Motohiro
Motozuka, Satoshi
Abstract
Provided are light-emitting nanoparticles that exhibit light emission stability and light resistance and are less biologically toxic. The light-emitting nanoparticles contain a matrix material and a light-emitting substance included in the matrix material, wherein the matrix material contains a cationic element that is at least one member selected from the group consisting of Ti, Si, Ca, Al and Zr, and an anionic element that is at least one member selected from the group consisting of O and P; and the concentration of the light-emitting substance in the matrix material is set to a level that results in an average distance of 1.2 nm or more between pieces of the light-emitting substance.
FOREST RESEARCH AND MANAGEMENT ORGANIZATION (Japan)
Kantechs Co. Ltd (Japan)
National University Corporation Nagaoka University of Technplpgy (Japan)
Inventor
Nakamura, Masaya
Otsuka, Yuichiro
Kameyama, Toshiji
Kameyama, Koki
Masai, Eiji
Kamimura, Naofumi
Katayama, Yoshihiro
Abstract
Provided is a method for producing 2-pyrone-4,6-dicarboxylic acid (PDC) by culturing a microorganism that produces PDC. The present invention provides a method of producing PDC by culturing a microorganism that produces 2-pyrone-4,6-dicarboxylic acid (PDC), wherein the method comprises: dissolving the starting substance for production of PDC in a buffer solution that contains no alkali metals, and adjusting the pH of a culture solution with a buffer solution that contains no alkali metals.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
HITECHNOTH CORPORATION (Japan)
Inventor
Aida Hideo
Katakura Haruji
Omiya Natsuko
Kobori Yasuyuki
Abstract
A polishing device (10) comprises: a wafer-holding part (31) that holds a wafer (W) and brings the held wafer (W) into contact with a polishing surface (22a); a surface plate drive unit (24) or a head drive unit (34) that rotates the wafer-holding part (31) relative to the polishing surface (22a) to which a slurry (SL) is supplied when polishing the wafer (W); a polishing pressure application part (32) that applies a polishing pressure to the wafer (W) by pressing the wafer (W) against the polishing surface (22a) with the wafer-holding part (31) therebetween; and a control unit (50) that periodically switches the state of the polishing pressure applied to the wafer (W) via the polishing pressure application part (32) during polishing of the wafer (W) between a high-pressure state and a low-pressure state in which the polishing pressure is lower than in the high-pressure state.
TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED (Japan)
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yajima Takeshi
Yamaguchi Takashi
Hatamoto Masashi
Watari Takahiro
Nur Adlin Binti Abu Bakar
Miwa Toru
Abstract
[Problem] The purpose of the present invention is to provide an organic waste water treatment system capable of efficiently supplying oxygen to the entirety of a treatment tank, which is a treatment space, and capable of treating organic waste water with further improved efficiency. [Solution] The configuration of the organic waste water treatment system (treatment system 100) according to the present invention is characterized by comprising: a treatment tank 110 that retains a fluid that is organic waste water; a carrier 130 that is housed in the treatment tank 110, and that carries aerobic microorganisms; a water purification pump 140 that pumps up to-be-treated water retained in a lower portion of the treatment tank 110 such that the water is circulated in the treatment tank 110 and is sent to the outside; an ejector 150 that is disposed in a path (water purification path 142) of the water purification pump 140, and generates fine bubbles; and a nozzle 120 that is connected to the downstream side of the ejector 150, and sprays, in the tank 110, the water to be treated.
B01F 23/2326 - Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
C02F 3/04 - Aerobic processes using trickle filters
23.
SURFACE PROCESSING METHOD FOR GaN SUBSTRATE AND MANUFACTURING METHOD FOR GaN SUBSTRATE
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Omiya Natsuko
Aida Hideo
Katakura Haruji
Abstract
Provided are: a surface processing method for a GaN substrate, which is capable of performing surface processing on the GaN substrate in a short period of time; and a manufacturing method for a GaN substrate. This surface processing method for a GaN substrate involves performing surface processing on the GaN substrate by grinding and polishing. The surface processing method comprises: a high-grit grinding step for grinding the surface of the GaN substrate with a grinding stone of at least #6000 grit; and a CMP polishing step for polishing the surface of the GaN substrate by means of CMP after grinding the surface of the GaN substrate through the high-grit grinding step.
B24B 7/00 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
B24B 1/00 - Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
B24B 37/00 - Lapping machines or devices; Accessories
B24B 37/10 - Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
B24D 3/14 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
24.
DIAMOND FILM FORMATION METHOD, DIAMOND FILM FORMATION DEVICE, PROGRAM, AND DIAMOND MATERIAL
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Aida Hideo
Oshima Ryuji
Abstract
This diamond film formation method includes: a base layer formation step for forming a base layer (22) by means of a CVD method using an iridium-containing first raw material gas; and a diamond layer formation step for forming a single-crystal diamond layer (23) on the base layer (22) by means of a CVD method using a hydrocarbon gas-containing second raw material gas.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
OPT GATE CO., LTD. (Japan)
Inventor
Sakamoto Moritsugu
Ono Hiroshi
Noda Kohei
Tanaka Masayuki
Abstract
This optical measurement device is configured from a polarized light radiating unit 10 that irradiates an object Ob with radiated light having controlled polarization, and a polarization imaging unit 20 that images the polarization state of a measured light occurring as a result of scattering, reflection, or absorption of the radiated light by the object Ob, calculates all or a portion of the Stokes parameters of the measured light, and measures a change in a polarized component occurring between the radiated light and the measured light due to the object Ob. The radiated light having a controlled polarization state is radiated onto the object, and so it is possible to acquire object information that was difficult to measure if an object was irradiated with natural light, that is to say, unpolarized radiated light, and it is also possible to suppress noise and contrast reduction caused when radiated light having an unstable polarization state is radiated onto the object and the polarization is measured.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
DISCO CORPORATION (Japan)
Inventor
Aida Hideo
Oshima Ryuji
Abstract
The present invention provides a machining apparatus and a machining method that make it possible to perform machining on a to-be-machined object at a high machining rate, with a rigidity equivalent to that of a conventional apparatus. This machining apparatus is provided with: a fixation part for fixing a to-be-machined object or the like; and a machining head for grinding/polishing the to-be-machined object with a machining material. The fixation part and/or the machining head is equipped with a motor and a cam mechanism that converts the rotational motion of the motor into a reciprocal linear motion, and performs grinding/polishing on the to-be-machined object by operating in a coordinated manner with the reciprocal linear motion converted by the cam mechanism.
B24B 7/00 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
B24B 7/24 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
B24B 41/047 - Grinding heads for working on plane surfaces
H01L 21/304 - Mechanical treatment, e.g. grinding, polishing, cutting
National University Corporation Nagaoka University of Technology (Japan)
Fujikoshi Machinery Corp. (Japan)
Inventor
Aida, Hideo
Takeda, Hidetoshi
Doi, Toshiro
Miyashita, Tadakazu
Kajikura, Atsushi
Abstract
A work processing apparatus performs processing of a surface to be processed of a work by causing a processing head to come into sliding contact with the work held on an upper surface of a holding plate. The processing head includes a plasma electrode that generates plasma and radiates the plasma to the surface to be processed of the work. In the plasma electrode, an annular or solid cylindrical central electrode provided at a center in a radial direction and an annular outer circumferential electrode provided at an outer side in the radial direction with respect to the central electrode are arranged with an annular slit portion intermediating therebetween at a boundary position thereof, the slit portion is configured as a plasma generation space, and a processing pad is provided at bottom surfaces of the central electrode and the outer circumferential electrode.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NIPPON ELECTRIC GLASS CO., LTD. (Japan)
Inventor
Honma, Tsuyoshi
Hiratsuka, Masafumi
Yamauchi, Hideo
Tanaka, Ayumu
Tsunoda, Kei
Yamazaki, Yoshinori
Abstract
The present invention provides a method for producing a positive electrode active material for alkali ion secondary batteries, the positive electrode active material containing a large amount of a transition metal, while enabling a battery to operate. A method for producing a positive electrode active material for alkali ion secondary batteries, the positive electrode active material containing 34% by mole or more of CrO + FeO + MnO + CoO + NiO. This method for producing a positive electrode active material for alkali ion secondary batteries is characterized by comprising: a step for preparing a positive electrode active material precursor that contains crystals; and a step wherein at least some of the crystals are melted and amorphized by irradiating the positive electrode active material precursor with light.
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
29.
NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR SODIUM ION SECONDARY BATTERY
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Maki Shinya
Abstract
[Problem] To provide a method for propagating a vegetative-reproduction plant, and a method for cultivating said plant, with which it is possible to efficiently achieve a high yield. [Solution] This method for propagating a vegetative-reproduction plant includes: a placement step for placing a virus-free plant body of the vegetative-reproduction plant, and a medium including an inorganic component, in a light-transmitting container; and a cultivation step for cultivating the plant body placed in the light-transmitting container in a field environment and obtaining a seedling of the vegetative-reproduction plant.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Hiwatari Tenjiro
Sano Sota
Satake Akira
Ohishi Kiyoshi
Yokokura Yuki
Kobayashi Yuto
Abstract
A power conversion device (100) comprises: a power conversion unit (1) for converting direct-current power into alternating-current power in accordance with a switching state quantity determined by a combination of the switching parameters of a plurality of switching elements and supplying the power to a load (3); a voltage output calculation unit (11) for calculating a voltage output value from the power conversion unit (1) on the basis of the switching state quantity; an integral calculation unit (12) for integrating a voltage command value and the voltage output value calculated by the voltage output calculation unit (11) and determining a voltage command integral and a voltage output integral; a switching update determination unit (13) for outputting an update signal of the switching state quantity on the basis of the voltage command integral, the permitted value of the voltage command integral, and the voltage output integral; and a switching determination table (14) for determining the switching state quantities of the plurality of switching elements of the power conversion unit (1) on the basis of the voltage command integral and the voltage output integral, which are determined by the integral calculation unit (12), and the update signal of the switching update determination unit (13).
H02M 7/48 - 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
32.
Structure for Producing Diamond and Method for Manufacturing Same
National University Corporation Nagaoka University of Technology (Japan)
WASEDA UNIVERSITY (Japan)
DISCO Corporation (Japan)
Inventor
Aida, Hideo
Sawabe, Atsuhito
Kimura, Yutaka
Mizuno, Jun
Oshima, Ryuji
Abstract
Provided are a structure for producing a high-quality single crystal diamond, and a method for manufacturing the structure for producing diamond. A structure for producing a diamond is composed of a base substrate and an Ir thin film formed on the base substrate. The thermal expansion coefficient of the base substrate is 5 times or less of the thermal expansion coefficient of diamond and the melting point of the base substrate is 700° C. or higher. The peak angle in the X-ray diffraction pattern of the Ir thin film is different from the peak angle in the X-ray diffraction pattern of the base substrate.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
SANOH INDUSTRIAL CO., LTD. (Japan)
Inventor
Aida Hideo
Omiya Natsuko
Abstract
Provided are a polishing state analysis prediction program, a storage device, a cathode luminescence device, and a polishing state analysis prediction method which can objectively recognize a surface state of a substrate in an initial stage of polishing of the substrate and contribute to an efficiency enhancement in the polishing by estimating a polishing condition within a short time. The polishing state analysis prediction program predicts a future polishing state of the substrate on the basis of a cathode luminescence image of the substrate to be polished, the image being obtained through a cathode luminescence method. The program executes on a computer: a step for acquiring average luminescent intensity data or average brightness data from a cathode luminescence image for each prescribed time after starting polishing of the substrate; and a step for plotting the average luminescent intensity data or the average brightness data and deriving an equation expressing a fitting curve of the plot by using a prescribed function.
B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
B24B 37/005 - Control means for lapping machines or devices
B24B 49/04 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Takahashi Akinori
Nakano Hiroaki
Takenaka Katsuhiko
Toda Tomoyuki
Abstract
A polymerization catalyst composition which contains a rare earth carboxylate, a phosphoric acid ester represented by general formula (1) and water. (In the formula, each R independently represents an alkyl group having from 5 to 20 carbon atoms.)
C08F 4/54 - Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with other compounds thereof
C08F 4/606 - Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group
C08F 236/04 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
35.
HIGH-VOLTAGE PULSE GENERATOR, GAS LASER APPARATUS, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE
National University Corporation Nagaoka University of Technology (Japan)
Gigaphoton Inc. (Japan)
Inventor
Jiang, Weihua
Umeda, Hiroshi
Abstract
A high-voltage pulse generation device configured to apply a pulsed high voltage to the space between a pair of discharge electrodes disposed in a laser chamber of a gas laser apparatus includes n transformer cores that form a transformer, where n is a natural number greater than or equal to two, n primary electric circuits of the transformer, the n primary electric circuits each having a first terminal connected to a reference potential and a second terminal connected to a charger, the n primary electric circuits each including one or more primary coils, one or more diodes connected in parallel to the one or more primary coils, and one or more pulse generators connected in parallel to the one or more primary coils, and a secondary electric circuit of the transformer, the secondary electric circuit including a secondary coil and connected to the pair of discharge electrodes.
National University Corporation Nagaoka University of Technology (Japan)
Gigaphoton Inc. (Japan)
Inventor
Jiang, Weihua
Umeda, Hiroshi
Kakizaki, Koji
Abstract
A high voltage pulse generation device includes n transformer cores configuring a transformer, n being a natural number of 2 or more, each of the n transformer cores being configured to form a magnetic circuit along a first plane and to have a width in a first direction parallel to the first plane larger than a width in a second direction parallel to the first plane and perpendicular to the first direction; n primary electric circuits of the transformer connected in parallel to each other, each of the n primary electric circuits including at least one primary coil, and m pulse generation units connected in parallel to the at least one primary coil, m being a natural number equal to or more than 2; and a secondary electric circuit of the transformer including a secondary coil and connected to a pair of discharge electrodes.
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/091 - Processes or apparatus for excitation, e.g. pumping using optical pumping
H01S 3/097 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
H01S 3/0971 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited
H01S 3/0973 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited having a travelling wave passing through the active medium
H01S 3/0975 - Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser using inductive or capacitive excitation
H01S 3/131 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yoshida Yu
Yoshida Katsuhito
Nakata Taiki
Ohashi Hideaki
Kamado Shigeharu
Abstract
A magnesium alloy sheet comprising a magnesium-based alloy, wherein the magnesium-based alloy has: a composition including 4.5 mass% to less than 8.5 mass% Al; and a structure that satisfies the conditions that fb/fa is 7 or greater and mL/mC and mL/mD are 0.9 to less than 1.3, where fa is the ratio of the number of pixels in which the crystal orientation of the basal plane is inclined 0-10° relative to the sheet surface from among all the pixels in one field of view when the crystal orientation is measured by an EBSD method, fb is the ratio of the number of pixels in which the crystal orientation is inclined 25-45° relative to the sheet surface, mL is the Schmid factor of basal plane slip with the direction orthogonal to both the sheet width direction and the sheet thickness direction as the tensile direction, mC is the Schmid factor of basal plane slip with the sheet width direction as the tensile direction, and mD is the Schmid factor of basal plane slip with the direction inclined 45° relative to both the aforementioned orthogonal direction and the sheet width direction as the tensile direction.
C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
38.
MAGNESIUM ALLOY PLATE, PRESS COMPACT, AND METHOD FOR MANUFACTURING MAGNESIUM ALLOY PLATE
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yoshida Yu
Yoshida Katsuhito
Nakata Taiki
Ohashi Hideaki
Kamado Shigeharu
Abstract
This magnesium alloy plate is formed from a magnesium-base alloy. The magnesium base alloy has: a composition comprising at least 2.0% by mass and less than 4.5% by mass of aluminum; and a structure. The structure is configured so that fb/fa is at least 10, mL/mC and mL/mD are at least 0.9 and less than 1.3, and the maximum value of the relative intensity of the basal crystal orientation is 5.2 or less, when: crystal orientation is measured by the EBSD; the proportion of the number of pixels in which the basal crystal orientation is inclined at an angle of 0°–10° from a plate surface to all pixels in one visual field is fa; the proportion of pixels for which the crystal orientation is inclined at an angle of 25°–45° from the plate surface is fb; the Schmid factor of basal slip when a direction orthogonal to both a plate width direction and a plate thickness direction is the tensile direction is mL; the Schmid factor of basal slip when the plate width direction is the tensile direction is mC; and the Schmid factor of basal slip when a direction inclined by 45° is the tensile direction is mD.
C22C 23/02 - Alloys based on magnesium with aluminium as the next major constituent
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
39.
CRYSTAL OF EUROPIUM COMPOUND AND METHOD FOR PRODUCING CRYSTAL OF EUROPIUM COMPOUND
COMPLEX BETWEEN SILICATE-BASED SUBSTRATE AND RARE EARTH ELEMENT COMPOUND, LIGHT-EMITTING NANO PARTICLES, CELL DETECTION METHOD, ANIMAL TREATMENT METHOD, MEDICAL DEVICE, AND METHOD FOR PRODUCING COMPLEX BETWEEN SILICATE-BASED SUBSTRATE AND RARE EARTH ELEMENT COMPOUND
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Chatani Sunao
Inui Masahiko
Tagaya Motohiro
Kataoka Takuya
Motozuka Satoshi
Abstract
Provided are: a complex that is formed between a silicate-based substrate and a rare earth element compound and that has a high light-emitting intensity so as to be usable as light-emitting particles; light-emitting nano particles, a cell detection method, an animal treatment method, and a medical device, which use the complex; and a method for producing the complex between the silicate-based substrate and the rare earth element compound. This complex includes, and is formed between, a silicate-based substrate containing silicon elements (Si) and oxygen elements (O), and a rare earth element compound. The rare earth element compound includes at least one selected from chlorides of rare earth elements and fluorides of rare earth elements. In a solid 294433433 is 1.6-3.9.
FOREST RESEARCH AND MANAGEMENT ORGANIZATION (Japan)
KANTECHS CO. LTD (Japan)
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Nakamura, Masaya
Otsuka, Yuichiro
Kameyama, Toshiji
Kameyama, Koki
Masai, Eiji
Kamimura, Naofumi
Katayama, Yoshihiro
Abstract
The present invention addresses the problem of providing a method for producing 2-pyrone-4,6-dicarboxylic acid (PDC), in which a microorganism that produces PDC is cultured. The present invention provides a method for producing 2-pyrone-4,6-dicarboxylic acid (PDC), in which a microorganism that produces PDC is cultured. The method includes: dissolving a starting material for producing PDC in a buffer solution that does not contain any alkali metal; and adjusting the pH of the culture solution using the buffer solution that does not contain any alkali metal.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Sano, Sota
Satake, Akira
Ohishi, Kiyoshi
Yokokura, Yuki
Hiwatari, Tenjiro
Abstract
The present invention includes a control amount calculation unit which calculates two or more control amounts each indicating a driving condition of a rotary electric machine on the basis of output current from and a switching state in a power converter; a limitation range-provided command value generation unit which generates limitation range-provided command values relative to command values for the control amounts; and a switching state determination unit which determines a switching state such that each control amount falls within the limitation range of the corresponding limitation range-provided command value. For at least one of the limitation range-provided command values, the limitation range thereof is temporally changed on the basis of the driving condition of the rotary electric machine.
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
H02P 21/22 - Current control, e.g. using a current control loop
H02M 7/5387 - 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 in a bridge configuration
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Suzuki Shunsuke
Kawai Yusuke
Yokokura Yuki
Miyazaki Toshimasa
Ohishi Kiyoshi
Mamba Takashi
Ando Shingo
Abstract
A controller 100 comprises: a first inertial body 91; an armature 62 that drives the first inertial body 91 in accordance with supply of electric power; a second inertial body 92; a current control unit 112 that outputs driving electric power for causing the driving force of the second inertial body 92 to follow a control target with respect to the armature 62 that is the object of control having a transmission element 83 that transmits motive power from the first inertial body 91 to the second inertial body 92; and a compensation unit 114 that calculates a compensation component to cancel out a feedback component that is generated in the object of control and affects an action of the second inertial body 92, on the basis of the state of the action of the object of control, and adds the compensation component to the driving electric power that the current control unit 112 outputs to the armature 62.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
GIGAPHOTON INC. (Japan)
Inventor
Jiang Weihua
Umeda Hiroshi
Kakizaki Koji
Abstract
A high-voltage pulse generation device that applies a pulsed high voltage to between a pair of discharge electrodes arranged inside a laser chamber for a gas laser device and comprises: an n number of transformer cores constituting a transformer, n being a natural number of at least 2, each of the n number of transformer cores configured so as to form a magnetic circuit along a first surface, and each of the n number of transformer cores having a width in a first direction parallel to the first surface that is greater than the width in a second direction parallel to the first surface and perpendicular to the first direction; an n number of primary-side electric circuits for the transformer, said n number of primary-side electric circuits being connected to each other in parallel, and each of the n number of primary-side electric circuits including at least one primary-side coil and an m number of pulse generation units connected in parallel to at least one primary-side coil, m being a natural number of at least 2; and an n number of secondary-side electric circuits for the transformer, including a secondary-side coil and being connected to a pair of discharge electrodes.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
GIGAPHOTON INC. (Japan)
Inventor
Jiang Weihua
Umeda Hiroshi
Abstract
This high-voltage pulse-generating device applies a pulse-form high voltage between a pair of discharge electrodes positioned within a laser chamber of a gas laser device, and comprises: n transformer cores, where is n is a natural number of 2 or more, and the n transformer cores constitute a transformer; n primary-side electrical circuits of a transformer, each of the n primary-side electrical circuits including a first terminal connected to a reference potential, a second terminal connected to a charger, and at least one primary-side coil, at least one diode connected in parallel to the at least one primary-side coil, and at least one pulse generator connected in parallel to the at least one primary-side coil; and a secondary-side electrical circuit which is a secondary electrical circuit of the transformer, and includes a secondary-side coil and is connected to a pair of discharge electrodes.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kawai, Yu
Okuda, Tatsuya
Itoh, Jun-Ichi
Le, Hoai Nam
Abstract
A power conversion device which reduces switching losses and stabilizes the output power. A switching-mode changer generates a reference signal for switching a mode of operation of the full-bridge circuit to a first switching mode or a second switching mode. In the first switching mode, an upper arm and a lower arm are switched synchronously, and a lower arm and an upper arm are non-conducting. In the second switching mode, the lower arm and the upper arm are switched synchronously, and the upper arm and the lower arm are non-conducting. The switching-mode changer adjusts the phase of the reference signal so that the reactive power is reduced.
H02M 7/5387 - 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 in a bridge configuration
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kanesaki Masaki
Yamaguchi Nobuhisa
Jiang Weihua
Sugai Taichi
Abstract
A discharge device (1) which comprises: a pulse discharge load (2) which is provided with a first discharge electrode (211), a second discharge electrode (212) and a dielectric layer (22); and a pulse power supply circuit part (3) which periodically outputs a pulse voltage to the pulse discharge load (2). The pulse power supply circuit part (3) comprises an energy storage part (31) in which electrical energy is able to be stored. The pulse power supply circuit part (3) is configured such that electrical energy is able to be reversibly transferred between the energy storage part (31) and the pulse discharge load (2).
National University Corporation Nagaoka University of Technology (Japan)
FUJI ELECTRIC CO., LTD. (Japan)
Inventor
Itoh, Junichi
Nishizawa, Koroku
Toba, Akio
Odaka, Akihiro
Abstract
A three-phase inverter includes three series circuits that are connected in parallel to a capacitor connected in parallel to a DC voltage source. Each of the three series circuits includes two semiconductor switching elements connected in series. A connection point between the two semiconductor switching elements is used as an AC output terminal for each phase. The three-phase inverter generates PWM pulses of three phases including a PWM pulse of one phase, whose pulse width of a positive side pulse in one switching cycle is the largest, and including PWM pulses of the other two phases such that a positional relationship between positive side pulses of the other two phases is a positional relationship in which an overlapping range on a time axis is smaller as compared with a state in which a positive side pulse of one phase encompasses a positive side pulse of the other pulse.
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 1/14 - Arrangements for reducing ripples from dc input or output
49.
Cell culture substratum, method for producing cell-containing material, method for producing cell culture substratum, method for observing cells, and cell culture substratum maintenance fluid
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Inui, Masahiko
Chatani, Sunao
Tagaya, Motohiro
Motozuka, Satoshi
Abstract
The purpose of the present invention is to provide a cell culture substratum which has excellent resistance to liquid culture media and low cytotoxicity, can achieve a high cell adhesion ratio and a high viability of cultured cells, has excellent thermal stability, and is less likely to absorbs ultraviolet ray. A cell culture substratum which is provided with a substrate made from an inorganic material and has multiple concavo-convex structures on a culturing surface thereof, wherein, when the concavo-convex structures are measured with an atomic force microscope in accordance with JISB0601 and JISR1683 (measured area: a 1 μm-square, cut-off value of a low-pass contour curve filter: 1 nm, cut-off value of a high-pass contour curve filter: 170 nm), the average of the lengths of contour curve elements of the concavo-convex structures is 1 to 170 nm as measured in at least one direction (when a curve showing long-wavelength components that are blocked by the high-pass contour curve filter is converted to a straight line by the least square method, the average line is a line that is parallel with the straight line and indicates a height cumulative relative frequency distribution in the contour curve of 50%).
C12M 1/00 - Apparatus for enzymology or microbiology
C12N 5/077 - Mesenchymal cells, e.g. bone cells, cartilage cells, marrow stromal cells, fat cells or muscle cells
C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
C12N 1/00 - Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Sano Sota
Satake Akira
Ohishi Kiyoshi
Yokokura Yuki
Hiwatari Tenjiro
Abstract
A power conversion apparatus (1) is provided with a control device (11) and a power converter (10) for supplying power to a rotary electric machine (3). The control device (11) is provided with: a first switching pattern generation unit (14) that generates a first switching state (Suvw1) by calculating a voltage command on the basis of a speed command, and extracting one switching pattern from among a plurality of preset switching patterns on the basis of the voltage command; a second switching pattern generation unit (16) that generates a second switching state (Suvw2) by calculating a control amount command on the basis of the speed command and obtaining a control amount such that the control amount falls within a command width including the control amount command; and a selection unit (17) that outputs, as a switching command, one switching state (Suvw) between the first and second switching states (Suvw1, Suvw2).
H02M 7/48 - 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
H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Sano Sota
Satake Akira
Ohishi Kiyoshi
Yokokura Yuki
Hiwatari Tenjiro
Abstract
The present invention comprises: a control amount computation unit (13) that computes two or more control amounts indicative of the driving state of a rotating electrical machine (3), such computation based on the output current and the switching state of a power converter (11); a limit-width-added command value generation unit (15) that generates limit-width-added command values based on the command value of the control amounts; and a switching state determination unit (16) that determines the switching state so that the control amounts converge within the limit width of the limit-width-added command values. The limit width of at least one limit-width-added command value is temporally changed on the basis of the driving state of the rotating electrical machine (3).
H02P 23/30 - Direct torque control [DTC] or field acceleration method [FAM]
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kawai, Yu
Okuda, Tatsuya
Itoh, Jun-Ichi
Le, Hoai Nam
Abstract
Provided is a power conversion device with which it is possible to reduce switching loss and to stabilize output power. A switching mode switch (5) generates a reference signal (Dpole*) for switching the operation mode of a full bridge circuit (FB) to either a first or a second switching mode. The first switching mode is a mode in which an upper arm (Q1) and a lower arm (Q4) are switched synchronously and a lower arm (Q2) and an upper arm (Q3) are set to be nonconductive. The second switching mode is a mode in which the lower arm (Q2) and the upper arm (Q3) are switched synchronously and the upper arm (Q1) and the lower arm (Q4) are set to be nonconductive. The switching mode switch (5) adjusts the phase of the reference signal (Dpole*) so that reactive power becomes small.
H02M 7/48 - 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
H02P 21/22 - Current control, e.g. using a current control loop
H02M 7/48 - 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
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kakeshita, Hiroshi
Shibata, Nozomu
Shida, Yosuke
Ogasawara, Wataru
Abstract
Provided is a modified promoter derived from a xylanase promoter. The modified promoter comprises a polynucleotide of the Xyn3 promoter which comprises a polynucleotide containing at least one cis-element polynucleotide of the Xyn1 promoter or a complementary chain thereof in a region corresponding to the nucleotides at the 374-401 positions in SEQ ID NO: 1. The polynucleotide of the Xyn3 promoter comprises: the nucleotide sequence represented by SEQ ID NO: 1; a nucleotide sequence represented by the nucleotides at the 350-1084 positions in SEQ ID NO: 1; or a nucleotide sequence having an identity of 90% or more to the aforesaid sequences and containing the sequence represented by SEQ ID NO: 2 in the region corresponding to the nucleotides at the 374-401 positions in SEQ ID NO: 1. The cis-element polynucleotide of the Xyn1 promoter is a polynucleotide which comprises the nucleotide sequence represented by SEQ ID NO: 4.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kawai, Yu
Okuda, Tatsuya
Itoh, Jun-Ichi
Le, Nam Hoai
Abstract
A power conversion device according to the present invention converts a DC voltage output from a DC power supply into an AC voltage in a current discontinuous mode. A current controller (6) calculates a target voltage value (VL*) between both ends of a reactor such that a value of current (Iinv) flowing through the reactor becomes a target current value (Iinv*). In the current discontinuous mode, a nonlinear compensator (701) calculates a target conduction ratio (D*) of a current sampling time by using the target voltage value (VL*), a target conduction ratio (D*) before one sampling time, and an output voltage value (Vc) before one sampling time.
H02M 7/48 - 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
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Tsuda, Shingo
Tamida, Taichiro
Jiang, Weihua
Abstract
The purpose of the present invention is to provide a pulse power source apparatus of an inductive addition type capable of executing bipolar output at a high repetitive frequency. A pulse power source apparatus (10) is provided with: a plurality of transformers (T1, T2, T3, T4) to which a secondary winding wire (Wc) is serially connected; a first switching circuit that is connected to both ends of a first primary winding wire (La1) of the first transformer (T1); a second switching circuit that is connected to both ends of a first primary winding wire (La2) of the second transformer (T2); and a plurality of switching circuits that are connected to both ends of the respective first primary winding wires (La1, La2, La3, La4) of the transformers, wherein an induced electromotive force of a positive polarity and an induced electromotive force of a negative polarity are temporally switched and outputted to both ends of the serially-connected secondary winding wire (Wc) of the transformers, by temporally switching the voltages applied to the first primary winding wires (La1, La2, La3, La4) of the transformers.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yamamoto, Kenji
Mizuno, Masao
Narai, Akira
Harada, Nobuhiro
Sasaki, Toru
Takahashi, Kazumasa
Kikuchi, Takashi
Maki, Takumi
Sasaki, Keita
Abstract
Provided is an arc vaporization source capable of increasing reaching efficiency, at which charged particles emitted from a target reach a subject. An arc vaporization source 1A that supplies charged particles toward a predetermined base material S is provided with a target T, and a magnetic field generating mechanism 2 including an electromagnetic coil 20. The electromagnetic coil 20 is disposed between the target T and the base material S, and has a cylindrical shape having a reference straight line CL as the axis center. When the magnitude of a magnetic field at the intersection between the reference straight line CL and a target emission surface TF of the target T is represented by B0 (Gauss), and the maximum value of the magnetic field between the target emission surface TF and the base material S, said magnetic field being on the reference straight line CL, is represented by Bm (Gauss), the relationship expressed by formula Bm/B0≤3 is satisfied.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NIPPON ELECTRIC GLASS CO., LTD. (Japan)
Inventor
Honma, Tsuyoshi
Komatsu, Takayuki
Nakata, Satoshi
Yamauchi, Hideo
Sato, Fumio
Abstract
3 in terms of oxide-equivalent mol % and includes 50 mass % or more of an amorphous phase. According to the present invention, it is possible to provide a positive electrode active material for alkali-ion secondary batteries that enables high energy density and is excellent in the charge and discharge characteristics.
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
59.
MUTANT STRAIN OF FILAMENTOUS FUNGUS AND USE THEREFOR
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Shibata, Nozomu
Ogasawara, Wataru
Shida, Yosuke
Abstract
Provided are a mutant strain of a filamentous fungus having enhanced protein secretion production, and a protein production method using the filamentous fungus. Specifically provided is a protein production method that includes a step for cultivating a mutant strain of a filamentous fungus with a knockdown or knockout of tubulin, and extracting protein from the culture.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yamanaka, Satoru
Kim, Yoonho
Ogawa, Takashi
Nakajima, Akira
Kim, Juyoung
Kato, Takanori
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power generation system 1 is provided with: a heat source 2 of which the temperature increases/decreases with time; a first device 3 of which the temperature increases and decreases with time because of the temperature change of the heat source 2 and that is electrically polarized; a second device 4 that forms a circuit configured to extract power from the first device 3; a voltage application device 9 that applies a voltage to the first device 3; a voltage sensor 35 that monitors the power generation performance of the first device 3; a temperature prediction program P that predicts the highest reached temperature and the temperature change of the heat source 2 and/or the first device 3; and a control unit 10 that operates or stops the voltage application device 9 on the basis of the temperature predicted by the temperature prediction program P and the power generation performance of the first device 3 monitored by the voltage sensor 35. The power generation system thus configured can efficiently generate power by preventing reduction in the power generation performance of the first device.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Inui, Masahiko
Chatani, Sunao
Tagaya, Motohiro
Motozuka, Satoshi
Abstract
The purpose of the present invention is to provide a cell culture substratum which has excellent resistance to liquid culture media and low cytotoxicity, can achieve a high cell adhesion ratio and a high viability of cultured cells, has excellent thermal stability, and is less likely to absorbs ultraviolet ray. A cell culture substratum which is provided with a substrate made from an inorganic material and has multiple concavo-convex structures on a culturing surface thereof, wherein, when the concavo-convex structures are measured with an atomic force microscope in accordance with JISB0601 and JISR1683 (measured area: a 1 μm-square, cut-off value of a low-pass contour curve filter: 1 nm, cut-off value of a high-pass contour curve filter: 170 nm), the average of the lengths of contour curve elements of the concavo-convex structures is 1 to 170 nm as measured in at least one direction (when a curve showing long-wavelength components that are blocked by the high-pass contour curve filter is converted to a straight line by the least square method, the average line is a line that is parallel with the straight line and indicates a height cumulative relative frequency distribution in the contour curve of 50%).
C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
C12N 1/00 - Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
LIGHT-EMITTING NANOPARTICLES, CELL DETECTION METHOD USING SAME, ANIMAL TREATMENT METHOD, MEDICAL DEVICE, CELL VISUALIZATION METHOD, AND METHOD FOR REDUCING INJURY TO CELL
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NATIONAL INSTITUTE OF TECHNOLOGY (Japan)
Inventor
Inui, Masahiko
Chatani, Sunao
Tagaya, Motohiro
Motozuka, Satoshi
Abstract
Provided are light-emitting nanoparticles that exhibit light emission stability and light resistance, and are less biologically toxic. The light-emitting nanoparticles contain a matrix material and a light-emitting substance included in the matrix material, wherein the matrix material contains a cationic element that is at least one member selected from the group consisting of Ti, Si, Ca, Al and Zr, and an anionic element that is at least one member selected from the group consisting of O and P; and the concentration of the light-emitting substance in the matrix material is set to a level that results in an average distance of 1.2 nm or more between pieces of the light-emitting substance.
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
G01N 33/48 - Biological material, e.g. blood, urine; Haemocytometers
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yamanaka, Satoru
Kim, Yoonho
Nakajima, Akira
Kim, Juyoung
Kato, Takanori
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
The purpose of the present invention is to provide an electric power generation system that can be prevented from being damaged by suppressing creeping discharge. The electric power generation system 1 is equipped with: a heat source 2 the temperature of which increases/decreases with time; a first device 3 which is electrically polarized as the temperature of which increases/decreases with time due to the change in the temperature of the heat source 2; a second device 4 for taking out electric power from the first device 3; a temperature sensor 8 for detecting the temperature of the first device 3; and a voltage application device 9 for applying a voltage to the first device 3. In addition, the second device 4 is equipped with a first electrode 4a and a second electrode 4b having different polarities from each other, and the first electrode 4a and the second electrode 4b are embedded in the first device 3 so as to face each other.
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
H01L 41/113 - Piezo-electric or electrostrictive elements with mechanical input and electrical output
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
64.
POWER GENERATION MATERIAL, POWER GENERATION ELEMENT, AND POWER GENERATION SYSTEM
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kim, Juyoung
Kim, Yoonho
Yamanaka, Satoru
Nakajima, Akira
Kato, Takanori
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
Provided are a power generation material with which it is possible to obtain exceptional power generation efficiency, a power generation element comprising the power generation material, and a power generation system obtained using the power generation element. The power generation element is obtained from the power generation material, which comprises a solid solution of a first dielectric that has the relaxer perovskite crystal structure represented in general formula (1), and a second dielectric comprising a ferroelectric material. The power generation system is obtained using the power generation element. Pb (B1 xB2 1-x) O3 (1) (where: B1 indicates at least one element selected from the group consisting of Mg, Zn, Yb, Ni, Se, In, and Sc; B2 indicates at least one element selected from the group consisting of Nb, Ta, and W; x indicates an atomic ratio within the numerical range 0
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Nakajima, Akira
Kim, Yoonho
Yamanaka, Satoru
Kim, Juyoung
Kato, Takanori
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Itoh, Junichi
Abstract
[Problem] To provide a power generation circuit wherein power supply from the outside is not needed, and power is efficiently extracted from a power generation element, and to provide a power generation system. [Solution] A power generation circuit 1 is provided with a power generation element 9, power receiving capacitor 10, first capacitor 11, second capacitor 12, third capacitor 13, conductive wire 6, and switch system 7. Furthermore, the conductive wire 6 constitutes: the first circuit A to which the power generation element 9, the first capacitor 11, and the third capacitor are connected; a second circuit B to which the power generation element 9 and the second capacitor 12 are connected; a third circuit C to which the power generation element 9, the power receiving capacitor 10, the first capacitor 11, and the third capacitor 13 are connected; a fourth circuit D to which the power generation element 9, the power receiving capacitor 10, and the second capacitor 12 are connected; and a fifth circuit E to which the power generation element 9 and the third capacitor 13 are connected. The switch system 7 is capable of performing state switching of the conductive wire 6 between an opened state and a closed state.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Motozuka, Satoshi
Morinaga, Masahiko
Tagaya, Motohiro
Abstract
Provided are flat metal particles having an aggregate structure due to mechanochemical processing. In the present invention, a method for manufacturing flat metal particles includes mechanochemical processing performed on metal powder including metal particles having an average particle diameter of 0.1µm to 1000µm inclusive. In the mechanochemical processing, flat metal particles are formed from the metal particles by being subjected to rolling processing involving at least one from among processing for deforming the metal particles so as to be flat, processing for layering the metal particles that have been formed to be flat, and processing for flattening a mass of a plurality of the metal particles.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
GIGAPHOTON INC. (Japan)
Inventor
Jiang Weihua
Umeda Hiroshi
Mizoguchi Hakaru
Matsunaga Takashi
Tsushima Hiroaki
Abstract
The present invention may improve the oscillation efficiency of a pulse laser light. The high-voltage pulse generating device applies a high voltage in the form of pulses between a pair of discharge electrodes disposed inside a laser chamber of the gas laser device. The high-voltage pulse generating device comprises n primary side electrical circuits (n is a natural number of 2 or greater) connected in parallel to one another on the primary side of a pulse transformer, and a secondary side electrical circuit of the pulse transformer connected to the pair of discharge electrodes. The n primary side electrical circuits may comprise n primary side coils connected in parallel to one another, n capacitors respectively connected in parallel to the n primary side coils, and n switches respectively connected in series to the n capacitors. The secondary side electrical circuit may comprise n secondary side coils connected in series to one another, and diodes for preventing a backward current from flowing from the pair of discharge electrodes and oriented toward the secondary side coils.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
GIGAPHOTON INC. (Japan)
Inventor
Jiang Weihua
Umeda Hiroshi
Mizoguchi Hakaru
Matsunaga Takashi
Tsushima Hiroaki
Ohkubo Tomoyuki
Abstract
The high-voltage pulse generating device comprises n primary side electrical circuits (n is a natural number of 2 or greater) connected in parallel to one another on the primary side of a pulse transformer, and a secondary side electrical circuit of the pulse transformer connected to a pair of discharge electrodes disposed inside a laser chamber of the gas laser device. The n primary side electrical circuits may comprise n primary side coils connected in parallel to one another, n capacitors respectively connected in parallel to the n primary side coils, and n switches respectively connected in series to the n capacitors. The n primary side electrical circuits may be connected to n chargers respectively charging the n capacitors. The secondary side electrical circuit may comprise n secondary side coils connected in series to one another, and n diodes respectively connected to both extremities of the n secondary side coils and preventing a backward current from flowing from the pair of discharge electrodes towards the secondary side coils.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
LINTEC CORPORATION (Japan)
Inventor
Takeda, Masatoshi
Mutou, Tsuyoshi
Kondo, Takeshi
Abstract
A thermoelectric conversion element that can efficiently make a temperature difference across a thermoelectric conversion material is provided. In the thermoelectric conversion element, on a first surface of a thermoelectric conversion module comprising a P-type thermoelectric element, an N-type thermoelectric element, and an electrode, a thermally conductive resin layer A and a thermally conductive resin layer B having a lower thermal conductivity than the thermally conductive resin layer A are provided in an alternating manner so as to be in direct contact with the first surface, and on a second surface on the opposite side of the first surface of the thermoelectric conversion module, a thermally conductive resin layer a and a thermally conductive resin layer b having a lower thermal conductivity than the thermally conductive resin layer a are provided in an alternating manner so as to be in direct contact with the second surface.
H01L 35/28 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only
H01L 35/32 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the structure or configuration of the cell or thermocouple forming the device
H01L 35/16 - Selection of the material for the legs of the junction using inorganic compositions comprising tellurium or selenium or sulfur
H01L 35/18 - Selection of the material for the legs of the junction using inorganic compositions comprising arsenic or antimony or bismuth
H01L 35/30 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the heat-exchanging means at the junction
70.
POSITIVE ELECTRODE ACTIVE MATERIAL FOR ALKALI ION SECONDARY BATTERIES
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NIPPON ELECTRIC GLASS CO., LTD. (Japan)
Inventor
Honma, Tsuyoshi
Komatsu, Takayuki
Nakata, Satoshi
Yamauchi, Hideo
Sato, Fumio
Abstract
Provided is a positive electrode active material for alkali ion secondary batteries, which is characterized by containing, in mol% based on oxides, 20-55% of Na2O + Li2O, 10-60% of CrO + FeO + MnO + CoO + NiO and 20-55% of P2O5 + SiO2 + B2O3, and which is also characterized by containing 50% by mass or more of an amorphous phase. According to the present invention, a positive electrode active material for alkali ion secondary batteries, which has high energy density and excellent charge/discharge characteristics, is able to be provided.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NIPPON ELECTRIC GLASS CO., LTD. (Japan)
Inventor
Honma, Tsuyoshi
Komatsu, Takayuki
Tanabe, Morito
Yamauchi, Hideo
Sato, Fumio
Abstract
Provided is a positive electrode active substance for a storage device, the substance characterized in containing an oxide material that has an amorphous phase and in being represented by general formula Nax(Mn1-aMa)yP2Oz (M is at least one selected from the group consisting of Cr, Fe, Co, and Ni, 1.2
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
NABTESCO CORPORATION (Japan)
Inventor
Ohishi, Kiyoshi
Yokokura, Yuki
Hirano, Yosei
Nakamura, Koji
Sato, Masataka
Abstract
This application discloses a control device for controlling a motor configured to drive an oscillatory cyclo-speed reducer including an oscillatory gear portion formed with at least one hole at an eccentric position. The control device includes an angle acquirer for acquiring input information about an input rotational angle indicating a rotational angle of the motor, an estimator for estimating an angular error between the input rotational angle and an output rotational angle indicating a rotational angle of the oscillatory cyclo-speed reducer based on a quantity of the hole(s) and a corrector for determining a compensation current value in correspondence to the angular error and setting a magnitude of a current to be supplied to the motor by correcting a command current value using the compensation current value.
G05D 13/62 - Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
G05B 19/04 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers
73.
POWER GENERATION SYSTEM AND POWER GENERATION CIRCUIT
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yamanaka, Satoru
Nakajima, Akira
Kim, Yoonho
Ogawa, Takashi
Kim, Juyoung
Kato, Takanori
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power generation system (1) is provided with: a heat source (2), the temperature of which fluctuating with the passage of time; an electrically polarized first device (3), the temperature of which fluctuating with the passage of time according to the change in temperature of the heat source (2); a second device (4) for forming a circuit that is configured to extract electric power from the first device (3); a temperature sensor (8) for detecting the temperature of the first device (3); a voltage application device (9) configured to apply a positive or a negative voltage to the first device (3); and a control unit (10) for controlling the voltage application device in accordance with the temperature of the first device (3) as detected by the temperature sensor (8). The control unit (10) controls the voltage application device (9) so that a positive voltage is applied to the first device (3) when the first device (3) is in a temperature-rising state, and a negative voltage is applied to the first device (3) when the first device (3) is in a temperature-falling state.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kim, Yoonho
Yamanaka, Satoru
Kim, Juyoung
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation based on the temperature change of the heat source and in which polarization occurs; a second device for taking out a net generating power from the first device; a temperature sensor that detects the temperature of the first device; a voltage application device that applies a voltage to the first device; and a control unit for activating the voltage application device on detecting an increase in temperature of the first device and for stopping the voltage application device on detecting a decrease in temperature of the first device by the temperature sensor.
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
H01L 35/30 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the heat-exchanging means at the junction
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Yamanaka, Satoru
Kim, Yoonho
Ogawa, Takashi
Nakajima, Akira
Kim, Juyoung
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A disclosed power generation system has a heat source having a temperature that rises and falls with the passage of time, a flow path through which a heating medium that is heated by the heat source flows, a power generation device having a power generation element that undergoes dielectric polarization as a result of the rise and fall of the temperature thereof caused by the temperature variation of the heating medium and comprises a dielectric that has a Curie temperature and a first electrode for extracting power from the power generation element, a temperature detection device that is disposed upstream from the power generation device in the flow path and detects the temperature of the heating medium that flows through the flow path, a voltage application device for applying voltage to the power generation element, and a control means for operating the voltage application device when a rise in the temperature of the heating medium is detected by the temperature detection device and stopping the voltage application device when a drop in the temperature of the heating medium is detected by the temperature detection device. The temperature detection device has a temperature detection element that undergoes dielectric polarization as a result of the rise and fall with the passage of time of the temperature thereof caused by the temperature variation of the heating medium and comprises a dielectric that has a Curie temperature that is equal to or greater than a temperature that is 50°C lower than the Curie temperature of the power generation element and a second electrode for detecting electromotive force from the temperature detection element.
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kim, Yoonho
Ogawa, Takashi
Yamanaka, Satoru
Nakajima, Akira
Kim, Juyoung
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power generation system (1) comprises: a heat source (2) having a temperature that rises and falls with time; a first device (3) having a temperature that rises and falls with time due to the temperature change of the heat source (2) and being electrically polarized; a second device (4) for drawing power from the first device (3); a temperature sensor (8) for detecting the temperature of the first device (3); a voltage applying device (9) for applying voltage to the first device (3); and a control unit (10) for, when the temperature rise of the first device (3) is detected by the temperature sensor (8), intermittently activating the voltage applying device (9) and for, when the temperature fall of the first device (3) is detected, continuously stopping the voltage applying device (9). With this configuration, the power generation system is obtained that can generate power with an excellent efficiency by a simple method.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kim, Juyoung
Kim, Yoonho
Ogawa, Takashi
Yamanaka, Satoru
Nakajima, Akira
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power generation element is obtained from a power generation material represented by general formula (1). In addition, a power generation system is obtained using the power generation element. (AxB1-x)NbO3 (1) (In the formula, A and B are different from each other and each represents at least one element selected from among rare earth elements, alkaline earth metals, alkali metals, Cd and Bi; and x represents an atomic ratio within the numerical range of 0 < x ≤ 1.) Due to this configuration, there can be achieved a power generation material which is able to exhibit sufficient power generation performance even in a high temperature range, a power generation element which is obtained from this power generation material, and a power generation system which is obtained using this power generation element.
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Isono, Yoshinobu
Kobayashi, Naoki
Abe, Yasushi
Abstract
80. Then, the semivulcanized molded article obtained by semivulcanized film-forming step is additionally vulcanized in the state as it is deformed entirely and the deformation is removed, to give vulcanizate in a desired shape.
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
TORAY INDUSTRIES, INC. (Japan)
Inventor
Ishikawa Kazuhiko
Ogasawara Wataru
Shida Yosuke
Hiramatsu Shingo
Kurihara Hiroyuki
Yamada Katsushige
Abstract
Provided is an enzyme solution in which the saccharification rate is not prone to decrease in saccharification reactions that extend over a long period of time. Trichoderma fungal culture cells which express β-glucosidase derived from Pyrococcus furiosus are used in the saccharification reaction. Further, by expressing in Trichoderma fungal culture cells the genes of the β-glucosidase derived from Pyrococcus furiosus in which codons have been changed, the expressed β-glucosidase is accumulated and retained within the cells without being immediately secreted.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
LINTEC CORPORATION (Japan)
Inventor
Takeda, Masatoshi
Mutou, Tsuyoshi
Kondo, Takeshi
Abstract
The present invention provides a thermoelectric conversion element that can efficiently impart a thermoelectric conversion material with a temperature difference. On a first surface of a thermoelectric conversion module comprising a p-type thermoelectric element, an n-type thermoelectric element, and an electrode, thermally conductive resin layers (A) and other thermally conductive resin layers (B) that exhibit a lower thermal conductivity than said thermally conductive resin layers (A) are provided in an alternating manner so as to be in direct contact with said first surface. On the opposite side of the thermoelectric conversion module, namely a second surface thereof, thermally conductive resin layers (a) and other thermally conductive resin layers (b) that exhibit a lower thermal conductivity than said thermally conductive resin layers (a) are provided in an alternating manner so as to be in direct contact with said second surface.
H01L 35/30 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof operating with Peltier or Seebeck effect only characterised by the heat-exchanging means at the junction
H01L 35/16 - Selection of the material for the legs of the junction using inorganic compositions comprising tellurium or selenium or sulfur
H01L 35/18 - Selection of the material for the legs of the junction using inorganic compositions comprising arsenic or antimony or bismuth
NATIONAL UNIVERSITY COORORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kim, Yoonho
Kim, Juyoung
Yamanaka, Satoru
Serizawa, Takeshi
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power-generating system includes a heat source which is able to produce temporal temperature variation, a first device in which polarization occurs based on the temperature change of the heat source, and a second device for taking out a net generating power from the first device, wherein 80% or higher of the total surface area of the first device is heated and/or cooled with the heat source.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
H01L 41/08 - Piezo-electric or electrostrictive elements
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
H01L 41/113 - Piezo-electric or electrostrictive elements with mechanical input and electrical output
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Kim, Yoonho
Yamanaka, Satoru
Kim, Juyoung
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
An electricity-generating system (1) is provided with: a heat source (2) having a temperature that rises and falls over time; a first device (3) having a temperature that rises and falls over time due to the temperature variation of the heat source (2), the first device (3) conducting electric polarization; a second device (4) for drawing electric power from the first device (3); a temperature sensor (8) for detecting the temperature of the first device (3); a voltage-applying device(9) for applying a voltage to the first device (3); and a control unit (10) for actuating the voltage-applying device (9) when a rise in the temperature of the first device (3) is detected by the temperature sensor (8), and stopping the voltage-applying device (9) when a fall in the temperature of the first device (3) is detected by the temperature sensor (8).
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Isono Yoshinobu
Kobayashi Naoki
Abe Yasushi
Abstract
Provided are a vulcanizate which is made from a carbon black-containing chloroprene rubber composition and which exhibits a low heat buildup and a process for producing the same, said low heat buildup being attained by an easier method. This process comprises: subjecting an unvulcanized rubber composition which comprises a chloroprene polymer and carbon black as the essential components to vulcanization molding to form a semi-vulcanized molded body having a vulcanization characteristic of t10 to t80 as determined by a method stipulated in JIS K6300-2:2001; vulcanizing the semi-vulcanized molded body again in a wholly deformed state; and then freeing the resulting body from the deformation to obtain a vulcanizate having an objective shape.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Mase Akio
Wakisaka Osamu
Kawahara Seiichi
Abstract
Provided are: a silica-containing modified natural rubber latex that can produce a rubber product having high strength; a silica-containing modified natural rubber material; and a method for producing same. The silica-containing modified natural rubber latex is produced by adding a vinyl monomer having an alkoxysilane to a natural rubber latex, causing graft co-polymerization of the vinyl monomer to natural rubber particles, and generating silica by means of the hydrolysis and condensation of the alkoxysilane. The silica-containing modified natural rubber material is produced by solidifying the silica-containing modified natural rubber latex. The silica-containing modified natural rubber material results from the natural rubber particles being dispersed in a matrix comprising graft chains containing the generated silica.
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Tanaka, Takashi
Yamamoto, Eiji
Itoh, Jun-Ichi
Takahashi, Hiroki
Abstract
A matrix converter according to an embodiment is equipped with: a power conversion unit which has multiple bi-directional switches; a control unit for controlling the power conversion unit; and a current detection unit for detecting a current which flows on the output side of the power conversion unit. The control unit extracts a high-frequency component which is contained in the current detected by the current detection unit, adjusts an output current command on the basis of this high-frequency component, and controls the power conversion unit on the basis of the adjusted output current command.
H02M 5/297 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 for conversion of frequency
H02M 5/293 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Koyano, Hironori
Nakamura, Takamasa
Yamamoto, Kouji
Itoh, Junichi
Ohnuma, Yoshiya
Abstract
This power converter (3) directly converts polyphase AC power into AC power, and is provided with: a conversion circuit which has multiple first switching means (311, 313, 315) which are connected to the R, S and T phases of the polyphase AC power and which make it possible to switch the flow of current in two directions, and multiple second switching means (312, 314, 316) which are connected to the aforementioned phases and which make it possible to switch the flow of current in two directions; and output lines (331, 332) connected to the conversion circuit. The multiple first switching means and the multiple second switching means include a pair of first output lines (331a, 332a) which are connected to the output terminals arranged in rows, which are drawn out in one direction, and which are arranged relative to wide bus bars arranged side-by-side in the upright direction.
H02M 5/293 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 5/297 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 for conversion of frequency
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Koyano, Hironori
Nakamura, Takamasa
Yamamoto, Kouji
Itoh, Junichi
Ohnuma, Yoshiya
Abstract
This power converter (3) directly converts polyphase AC power into AC power, and is provided with: a conversion circuit which has multiple first switching means (311, 313, 315) which are connected to the R, S and T phases of the polyphase AC power and which make it possible to switch the flow of current in two directions, and multiple second switching means (312, 314, 316) which are connected to the aforementioned phases and which make it possible to switch the flow of current in two directions; and input lines (333, 334, 335) connected to the conversion circuit; and multiple capacitors (82L, 82R) connected to the conversion circuit. In the multiple first switching means and the multiple second switching means, input terminals forming a pair are arranged in one row, and the input lines are drawn out in the arrangement direction of the pair-forming input terminals, and extend from one input terminal to the other input terminal.
H02M 5/293 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 5/297 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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 for conversion of frequency
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kim, Yoonho
Kim, Juyoung
Yamanaka, Satoru
Serizawa, Takeshi
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Abstract
A power generation system provided with: a heat source having a temperature that increases and decreases with time; a first device which electrically polarizes due to the change in temperature of the heat source; and a second device for extracting power from the first device. No less than 80% of the total surface area of the first device is heated and/or cooled by the heat source.
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
H01L 41/113 - Piezo-electric or electrostrictive elements with mechanical input and electrical output
H01L 41/18 - Selection of materials for piezo-electric or electrostrictive elements
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kim, Yoonho
Kim, Juyoung
Serizawa, Takeshi
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Ogawa, Kyohei
Ishizawa, Satoshi
Shida, Masashi
Abstract
This power generation system is equipped with: a heat source, the temperature of which increases and decreases over time; a first device which is polarized by using the changes in the temperature of the heat source to increase and decrease the temperature thereof over time; a second device for extracting power from the first device; a detecting means for detecting the temperature of the first device; an electrical field applying means for applying an electrical field to the first device; and a controlling means for operating the electric field applying means when the temperature detected by the detecting means is at least at the Curie point of the first device.
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Kim, Yoonho
Serizawa, Takeshi
Tanaka, Hirohisa
Nakayama, Tadachika
Takeda, Masatoshi
Yamada, Noboru
Niihara, Koichi
Ogawa, Kyohei
Nakata, Hiroya
Shida, Masashi
Ishizawa, Satoshi
Abstract
A power generation system is equipped with: a heat source, the temperature of which increases and decreases over time; a first device which is electrically polarized by using the changes in the temperature of the heat source to increase and decrease the temperature of the first device over time so that at least a part thereof is within the temperature range from 20°C below the Curie point thereof to 10°C above the Curie point thereof; and a second device for extracting power from the first device.
H02N 11/00 - Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
H01L 37/02 - Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using Nernst-Ettinghausen effect; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof using thermal change of dielectric constant, e.g. working above and below the Curie point
91.
SYSTEM FOR REDUCING AND FIXING CARBON DIOXIDE, METHOD FOR REDUCING AND FIXING CARBON DIOXIDE, AND METHOD FOR PRODUCING USEFUL CARBON RESOURCE
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
SUMITOMO OSAKA CEMENT CO., LTD. (Japan)
Inventor
Umeda Minoru
Sato Masatoshi
Shinozaki Ryota
Nakabeppu Tetsuya
Abstract
The present invention provides a system for reducing and fixing carbon dioxide whereby carbon dioxide can be fixed in a gaseous state without supplying outside energy. This system (1) for reducing and fixing carbon dioxide is characterized by comprising a reactor (1A) having a cathode (11) and an anode (12) disposed with an electrolyte (13) therebetween, wherein electrons are generated by an oxidation reaction at the anode (12) while the gas-phase carbon dioxide is fixed by reduction reaction at the cathode (11), and the cations or anions are transported through the electrolyte (13) so as to correct the bias in the charge between the electrodes that accompanies the oxidation reaction or reduction reaction, and the oxidation reaction at the anode (12) is the reaction in which the onset potential of the oxidation reaction versus the normal hydrogen electrode (NHE) potential at the operating temperature is more negative than the onset potential of the carbon dioxide reduction reaction at the cathode (11) under the same operating conditions.
C25B 1/00 - Electrolytic production of inorganic compounds or non-metals
C25B 3/04 - Electrolytic production of organic compounds by reduction
92.
SYSTEM FOR REDUCING AND IMMOBILIZING CARBON DIOXIDE, METHOD FOR REDUCING AND IMMOBILIZING CARBON DIOXIDE, AND METHOD FOR PRODUCING USEFUL CARBON RESOURCES
National University Corporation Nagaoka University of Technology (Japan)
SUMITOMO OSAKA CEMENT CO., LTD. (Japan)
Inventor
Umeda Minoru
Sato Masatoshi
Shinozaki Ryota
Nakabeppu Tetsuya
Abstract
A system for reducing and immobilizing carbon dioxide (1) is characterized in that: a reaction part (1A) having a cathode (11) and an anode (12) positioned with an electrolyte (13) therebetween, and an external power supply (power supply unit) (17), which applies a voltage between the anode (12) and the cathode (11), are provided; and electrons are generated by an oxidation reaction in the anode (12), carbon dioxide in the gas phase is immobilized by a reduction reaction in the cathode (11), and cations or anions are transported through the electrolyte (13) in such a manner as to compensate for biases in charges between the electrodes due to the oxidation reaction or the reduction reaction.
C25B 9/00 - Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY (Japan)
Inventor
Hirawatari, Sueji
Hosoi, Hidenori
Fukui, Tsuyoshi
Fukushima, Makoto
Kamado, Shigeharu
Honma, Tomoyuki
Abstract
The present invention provides: a magnesium-alloy member, the mechanical strength and high-temperature fatigue strength of which can be applied to a mechanism component in a compressor for use in an automobile air conditioner; a method for manufacturing said magnesium-alloy member; and a lighter-weight compressor for use in an automobile air conditioner, said compressor using, in a mechanism member, a magnesium alloy provided with the necessary mechanical strength and high-temperature fatigue strength. Specifically, a magnesium-alloy member is formed by plastically working (extruding) a magnesium-alloy casting material at 250-500°C, said casting material containing, by mass, 0.3-10% calcium, 0.2-15% aluminum, and 0.05-1.5% manganese, with the mass ratio of calcium to aluminum being between 0.6 and 1.7, inclusive, and the remainder comprising magnesium and unavoidable impurities. Said magnesium-alloy member thus exhibits a 0.2% proof stress at room temperature of at least 300 MPa and a fatigue strength at 150°C of at least 100 MPa.
C22F 1/06 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
95.
SHAPE MEASUREMENT DEVICE AND SHAPE MEASUREMENT METHOD
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Shioda Tatsutoshi
Abstract
A shape measurement device is provided with a light source (11), a measurement light irradiation system (13), a reference comb light separator (14), a light multiplexer (15) and a light detector (16). The reference comb light separator (14) has broadband light inputted thereinto, and separates said broadband light into reference comb light having a frequency interval that changes continuously according to the magnitude of the Y coordinate value at the imaging point when the emission direction is set to the X axis direction, and with the virtual line of cutting plane of the object to be measured as the X axis, and depth as the Y coordinate, the interference image which appears on the detection screen is made to serve as the section image of the object to be measured. By doing so, using reference comb light, having a frequency interval which varies (continuously) according to the magnitude of the Y coordinate value at the imaging point with the emission direction as the Z-axis direction, the one dimensional section in the depth direction in which the dynamic range is large, or in the two dimensional section in the depth direction, is measured.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Ishikawa Koji
Kawahara Seiichi
Yamamoto Yoshimasa
Abstract
Disclosed is an agent which improves the impact resistance of a resin which uses deproteinized natural rubber as the rubber component, and which in particular is effective in improving the impact resistance of aromatic vinyl-based resins. The disclosed resin modifier is a graft copolymer (A) obtained by polymerizing, in the presence of a rubber polymer (a) containing a deproteinized natural rubber (a) with nitrogen content of no more than 0.1 mass%, a vinyl-based monomer (b) formed having an aromatic vinyl compound and, if desired, other monomers capable of copolymerization with said aromatic vinyl compound, wherein the graft ratio is 10-65 mass%, and the intrinsic viscosity of the acetone-soluble component (in methyl ethyl ketone at 30C) is 0.2-1.5 dl/g.
C08F 253/00 - Macromolecular compounds obtained by polymerising monomers on to natural rubbers or derivatives thereof
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
C08L 101/00 - Compositions of unspecified macromolecular compounds
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Ishikawa Koji
Kawahara Seiichi
Yamamoto Yoshimasa
Abstract
Disclosed is an aromatic vinyl-based resin composition which uses natural rubber as the rubber component, has excellent impact resistance and excellent surface appearance of molded products, and has a low environmental impact. The disclosed rubber-modified aromatic vinyl-based resin composition contains at least one type of graft copolymer (A) obtained by polymerizing in the presence of a rubber polymer (a) a vinyl-based monomer (b) formed having an aromatic vinyl compound and, if desired, other monomers capable of copolymerization with said aromatic vinyl compound, wherein the rubber polymer (a) contained in said composition contains a deproteinized natural rubber (a1) with nitrogen content of no more than 0.1 mass%, and a synthetic rubber (a2). The rubber polymer (a) optimally comprises component (a1) at 3-90 mass% and component (a2) at 10-97 mass%. The composition also optionally contains a (co-)polymer (B) of vinyl-based monomers.
C08F 291/00 - Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups
C08L 25/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
98.
RELAY, CONTROL CIRCUIT, AND METHOD FOR CONTROLLING CONTROL CIRCUIT
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Hirao, Yuji
Futsuhara, Koichi
Abstract
Provided is a relay in which a plurality of contact points are driven by a single electromagnet and can be operated at respective desired timings. The relay (KM) has at least first and second contact points (a1, a2), the states of which are switched from an open state to a close state by the drive of an electromagnet (32). The first and second contact points (a1, a2) switch the states between the open state and the close state by enabling movable contact pieces (31) to move with respect to respective fixed contact pieces (30) by using a power transmission mechanism (21) movable by the drive of the electromagnet (32). By the shape of the power transmission mechanism (21) set relative to the fixed contact pieces (30) of the first and second contact points (a1, a2), the first and second contact points (a1, a2) are set so that the second contact point (a2) is switched to the close state after the first contact point (a1) is switched to the close state and the first contact point (a1) is switched to the open state after the second contact point (a2) is switched to the open state.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Sakaguchi, Arito
Sakaguchi, Hide
Abstract
There are provided a method by which a stress history of an object can be measured with high reliability if the object, which has temporarily been elastically deformed upon receiving an external force, recovers from the elastic deformation, and a composite material containing cement as a main component, of which a stress history can be measured with high reliability without reducing the strength of the material itself and without breaking the structure. To achieve the above-mentioned advantages, the method includes the steps of: acquiring an initial value of a twin density for calcite particles contained in an object to be measured that is elastically deformable upon receiving an external force; and measuring a history of stresses received by the object to be measured on the basis of a difference from the initial value in respect of the twin density for the calcite particles after the object to be measured receives the external force. The composite material includes calcite particles, for which a twin density is known and which are mixed to be distributed in the material, partially replacing an aggregate of the material.
National University Corporation Nagaoka University of Technology (Japan)
Inventor
Shioda Tatsutoshi
Abstract
Disclosed is an object measurement device which can measure the characteristic information for each depth (at a resolution of several microns) of an object to be measured, said characteristic information including spatial information, energy structure information, refractive index, transmittance, and reflectance. The disclosed electric field spectrum measurement device receives a reference wave propagating on a reference wave path and at least one measurement wave, which has the same origin as the reference wave and propagates on a measurement wave path, and obtains a variety of measurement wave spectra on the basis of the cross-correlation of the measurement wave and the electric field spectrum of the reference wave, or obtains a variety of measurement wave spectra on the basis of the auto-correlation of the reference wave and the cross-correlation of the reference wave and the measurement wave. The spatial information, energy structure information, refractive index, transmittance, reflectance and the like of the object to be measure are obtained using the electric field spectrum measurement device.