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1. 发明授权

US11286449B2 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 有权
公开(公告)号：US11286449B2
公开(公告)日：2022-03-29
申请号：US16302828
申请日：2017-05-18
申请人： Ohara Quartz CO., LTD. , NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY , National Institute of Technology
发明人： Masahiko Inui , Sunao Chatani , Motohiro Tagaya , Satoshi Motozuka
IPC分类号： C12M1/00 , C12N5/077 , C12M3/00 , C12N1/00
摘要： 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%).

2. 发明申请

US20210367394A1 HIGH-VOLTAGE PULSE GENERATOR, GAS LASER APPARATUS, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE 有权
公开(公告)号：US20210367394A1
公开(公告)日：2021-11-25
申请号：US17397375
申请日：2021-08-09
申请人： National University Corporation Nagaoka University of Technology , Gigaphoton Inc.
发明人： Weihua JIANG , Hiroshi UMEDA
IPC分类号： H01S3/097 , H01S3/0975 , H01S3/038
摘要： 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.

3. 发明申请

US20210367393A1 HIGH VOLTAGE PULSE GENERATION DEVICE, GAS LASER APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD 有权
公开(公告)号：US20210367393A1
公开(公告)日：2021-11-25
申请号：US17396928
申请日：2021-08-09
申请人： National University Corporation Nagaoka University of Technology , Gigaphoton Inc.
发明人： Weihua JIANG , Hiroshi UMEDA , Koji KAKIZAKI
IPC分类号： H01S3/097 , H01F27/24 , H01F27/28 , G03F7/20
摘要： 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.

4. 发明授权

US10778116B2 Three-phase inverter with reduced DC bus capacitor ripple 有权
公开(公告)号：US10778116B2
公开(公告)日：2020-09-15
申请号：US16279179
申请日：2019-02-19
申请人： National University Corporation Nagaoka University of Technology , FUJI ELECTRIC CO., LTD.
发明人： Junichi Itoh , Koroku Nishizawa , Akio Toba , Akihiro Odaka
IPC分类号： H02M7/537 , H02M1/14
摘要： 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.

5. 发明授权

US09780283B2 Thermoelectric conversion element 有权
公开(公告)号：US09780283B2
公开(公告)日：2017-10-03
申请号：US14777870
申请日：2014-03-18
申请人： NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY , LINTEC CORPORATION
发明人： Masatoshi Takeda , Tsuyoshi Mutou , Takeshi Kondo
IPC分类号： H01L35/28 , H01L35/32 , H01L35/16 , H01L35/18 , H01L35/30
CPC分类号： H01L35/32 , H01L35/16 , H01L35/18 , H01L35/30
摘要： 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.

6. 发明授权

US09369055B2 Power converter 有权
标题翻译：电源转换器
公开(公告)号：US09369055B2
公开(公告)日：2016-06-14
申请号：US14349686
申请日：2012-09-28
申请人： Nissan Motor Co., Ltd. , National University Corporation Nagaoka University of Technology
发明人： Hironori Koyano , Takamasa Nakamura , Kouji Yamamoto , Junichi Itoh , Yoshiya Ohnuma
IPC分类号： H02M5/293 , H02M5/297 , H05K7/14 , H02M7/00
CPC分类号： H02M5/293 , H02M5/297 , H02M7/003 , H05K7/1432
摘要： A power converter is provided for direct conversion of multi-phase AC power to AC power. The power converter includes a conversion circuit, a plurality of input lines and a plurality of capacitors. The conversion circuit has first and second switching elements that are configured to be connected to the phases of the multi-phase AC power for bidirectional switching of energizing current. The input lines are connected to the conversion circuit. The capacitors are connected to the conversion circuit. The first and second switching elements are arranged such that paired input terminals line up in a row with the paired input terminals to an outside, and paired output terminals to an inside. The input lines extend in a direction in which the paired input terminals line up, and extend from one of the input terminals to another of the input terminals.
摘要翻译：提供电源转换器，用于将多相交流电源直接转换为交流电源。功率转换器包括转换电路，多个输入线和多个电容器。转换电路具有被配置为连接到用于激励电流的双向切换的多相AC电力的相位的第一和第二开关元件。输入线连接到转换电路。电容器连接到转换电路。第一和第二开关元件被布置成使得成对的输入端子与成对的输入端子成对地排列到外部，并且配对输出端子到内部。输入线在成对的输入端子排列的方向上延伸，并且从一个输入端子延伸到另一个输入端子。

7. 发明申请

US20140247636A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20140247636A1
公开(公告)日：2014-09-04
申请号：US14349696
申请日：2012-09-28
申请人： National University Corporation Nagaoka University of Technology , Nissan Motor Co., Ltd.
发明人： Hironori Koyano , Takamasa Nakamura , Kouji Yamamoto , Junichi Itoh , Yoshiya Ohnuma
IPC分类号： H02M5/293 , H02M5/297
CPC分类号： H02M5/293 , H02M5/297 , H02M7/003 , H02M7/217 , H05K7/1432
摘要： A power converter is provided for direct conversion of multi-phase AC power to AC power. The power converter includes a conversion circuit and a plurality of output lines. The conversion circuit has first and second switching elements that are configured to be connected to phases of the multi-phase AC power for bidirectional switching of energizing current. The output lines are connected to the conversion circuit. The first and second switching elements have output terminals. The output terminals of the first and second switching elements are arranged in first and second rows. The output terminals of the first and second switching elements face each other. The first output lines include two first output lines including first and second widely shaped bus bars connected to the output terminals of the first and second switching elements, respectively. The first output lines extending out in one direction, and line up in an upright direction.
摘要翻译：提供电源转换器，用于将多相交流电源直接转换为交流电源。功率转换器包括转换电路和多条输出线。转换电路具有被配置为连接到多相交流电源的相位的第一和第二开关元件，用于激励电流的双向切换。输出线连接到转换电路。第一和第二开关元件具有输出端子。第一和第二开关元件的输出端子布置在第一和第二行中。第一和第二开关元件的输出端子彼此面对。第一输出线包括两个第一输出线，分别包括连接到第一和第二开关元件的输出端的第一和第二广泛形状的母线。第一个输出线在一个方向上延伸出来，沿直立方向排列。

8. 发明申请

US20230114986A1 LIGHT-EMITTING NANOPARTICLES, CELL DETECTION METHOD USING SAME, ANIMAL TREATMENT METHOD, MEDICAL DEVICE, CELL VISUALIZATION METHOD, AND METHOD FOR REDUCING INJURY TO CELL 有权
公开(公告)号：US20230114986A1
公开(公告)日：2023-04-13
申请号：US17962198
申请日：2022-10-07
申请人： Ohara Quartz Co., Ltd. , NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY , National Institute of Technology
发明人： Masahiko INUI , Sunao CHATANI , Motohiro TAGAYA , Satoshi MOTOZUKA
IPC分类号： C09K11/77 , C09K11/06 , A61K9/51 , A61K47/02 , B82Y20/00 , C09K11/02 , A61K41/00 , G01N33/48 , B82Y5/00 , B82Y30/00 , G01N21/64 , G01N33/533
摘要： 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.

9. 发明授权

US10992240B2 Power conversion device 有权
公开(公告)号：US10992240B2
公开(公告)日：2021-04-27
申请号：US16650059
申请日：2018-09-20
申请人： Mitsubishi Electric Corporation , National University Corporation Nagaoka University of Technology
发明人： Yu Kawai , Tatsuya Okuda , Jun-ichi Itoh , Hoai Nam Le
IPC分类号： H02M7/5387 , H02M1/08 , H02M1/00
摘要： 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.

10. 发明申请

US20190334454A1 THREE-PHASE INVERTER 审中-公开
公开(公告)号：US20190334454A1
公开(公告)日：2019-10-31
申请号：US16279179
申请日：2019-02-19
申请人： National University Corporation Nagaoka University of Technology , Fuji Electric Co., Ltd.
发明人： Junichi ITOH , Koroku NISHIZAWA , Akio TOBA , Akihiro ODAKA
IPC分类号： H02M7/537
摘要： 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.

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