公开(公告)号：US10992240B2

公开(公告)日：2021-04-27

申请号：US16650059

申请日：2018-09-20

Applicant: Mitsubishi Electric Corporation ,  National University Corporation Nagaoka University of Technology

Inventor： Yu Kawai ,  Tatsuya Okuda ,  Jun-ichi Itoh ,  Hoai Nam Le

IPC: H02M7/5387 ,  H02M1/08 ,  H02M1/00

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.

公开(公告)号：US20200332194A1

公开(公告)日：2020-10-22

申请号：US16922479

申请日：2020-07-07

Applicant: UNIVERSITY OF HYOGO ,  NAGAOKA UNIVERSITY OF TECHNOLOGY ,  NISSAN CHEMICAL INDUSTRIES, LTD.

Inventor： Tomoyuki SASAKI ,  Hiroshi ONO ,  Nobuhiro KAWATSUKI ,  Kohei GOTO

IPC: C09K19/38 ,  C09K19/32 ,  C09K19/06 ,  C09K19/20 ,  C09K19/14 ,  C09K19/30 ,  C09K19/12 ,  C09K19/44

Abstract: The purpose of the present invention is to provide: elements, in particular, a display element and an optical element, which are obtained by controlling orientation of liquid crystals in a liquid crystal bulk without using a liquid crystal orientation film; and/or a photoreactive liquid crystal composition for manufacturing the elements. The present invention provides: a photoreactive liquid crystal composition comprising (A) a photoreactive polymer liquid crystal which includes a photoreactive side chain in which at least one type of reaction selected from the group consisting of (A-1) photocrosslinking and (A-2) photoisomerization occurs, and (B) a low molecular weight liquid crystal; and an optical element or display element which is formed having a liquid crystal cell including the composition.

公开(公告)号：US20190334454A1

公开(公告)日：2019-10-31

申请号：US16279179

申请日：2019-02-19

Applicant: National University Corporation Nagaoka University of Technology ,  Fuji Electric Co., Ltd.

Inventor： Junichi ITOH ,  Koroku NISHIZAWA ,  Akio TOBA ,  Akihiro ODAKA

IPC: H02M7/537

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.

公开(公告)号：US10461637B2

公开(公告)日：2019-10-29

申请号：US16133650

申请日：2018-09-17

Applicant: OMRON Corporation ,  NAGAOKA University of Technology

Inventor： Junichi Itoh ,  Katsutaka Tanabe ,  Akihiro Funamoto ,  Koji Ando

IPC: H02M3/07 ,  H02M3/158 ,  H02M1/088 ,  H02M7/44 ,  H02M1/00

Abstract: A switching element with a small current capacity is provided to be able to be used in a DC-DC converter. The DC-DC converter includes a switching circuit in which a first switching element, a second switching element, a third switching element, and a fourth switching element are connected in series, a flying capacitor that is connected between a connection portion between the first switching element and the second switching element and a connection portion between the third switching element and the fourth switching element, a reactor that is connected between a connection portion between the second switching element and the third switching element and a positive electrode of an input unit, and a control circuit that turns on/off the switching element, in which the control circuit turns on/off the switching elements so that a peak value in a reactor current becomes equal to or smaller than a predetermined value.

公开(公告)号：US20190252846A1

公开(公告)日：2019-08-15

申请号：US16396072

申请日：2019-04-26

Applicant: National University Corporation Nagaoka University of Technology ,  Gigaphoton Inc.

Inventor： Weihua JIANG ,  Hiroshi UMEDA ,  Hakaru MIZOGUCHI ,  Takashi MATSUNAGA ,  Hiroaki TSUSHIMA ,  Tomoyuki OHKUBO

IPC: H01S3/097 ,  H01S3/041 ,  H01S3/225 ,  H01S3/134 ,  H01S3/038

CPC classification number: H01S3/09702 ,  H01S3/036 ,  H01S3/038 ,  H01S3/041 ,  H01S3/08009 ,  H01S3/0971 ,  H01S3/10069 ,  H01S3/134 ,  H01S3/225

Abstract: A high-voltage pulse generator may include a number “n” (n is a natural number of not less than 2) of primary electric circuits connected in parallel to one another on the primary side of a pulse transformer, and a secondary electric circuit of the pulse transformer, which is connected to a pair of discharge electrodes disposed in a laser chamber of a gas laser apparatus. The “n” primary electric circuits may include a number “n” of primary coils connected in parallel to one another, a number “n” of capacitors respectively connected in parallel to the “n” primary coils, and a number “n” of switches respectively connected in series to the “n” capacitors. The “n” primary electric circuits may be connected to a number “n” of chargers for charging the “n” capacitors, respectively. The secondary electric circuit may include a number “n” of secondary coils connected in series to one another, and a number “n” of diodes each connected to opposite ends of each of the “n” secondary coils, to prevent a reverse current flowing from the pair of discharge electrodes toward the secondary coils.

公开(公告)号：US20160284964A1

公开(公告)日：2016-09-29

申请号：US15037395

申请日：2014-11-20

Applicant: DAIHATSU MOTOR CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY

Inventor： Satoru YAMANAKA ,  Yoonho KIM ,  Takashi OGAWA ,  Akira NAKAJIMA ,  Juyoung KIM ,  Hirohisa TANAKA ,  Tadachika NAKAYAMA ,  Masatoshi TAKEDA ,  Noboru YAMADA ,  Koichi NIIHARA

IPC: H01L35/32 ,  H01L35/30

CPC classification number: H01L35/32 ,  F01N5/02 ,  H01L35/30 ,  H01L37/02 ,  Y02T10/16

Abstract: A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.

Abstract translation: 发电系统包括：温度随时间变化的热源; 由热源加热的热介质通过的流路; 发电装置，其包括发电元件和第一电极，所述发电元件根据所述热介质的温度变化而由其温度变化而电极化，所述第一电极从所述发电元件提取电力; 温度检测装置设置在所述流路中相对于所述发电装置的上游侧，并检测所述热介质的温度; 对发电元件施加电压的电压施加装置; 以及控制装置，当已经检测到热介质的温度升高时激活电压施加装置，并且当已经检测到热介质的温度降低时，使电压施加单元停止。

公开(公告)号：US20150073086A1

公开(公告)日：2015-03-12

申请号：US14391667

申请日：2012-11-27

Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHA ,  National University Corporation Nagaoka University of Technology

Inventor： Yoshinobu Isono ,  Naoki Kobayashi ,  Yasushi Abe

IPC: C08K3/04

CPC classification number: C08K3/04 ,  B29C35/02 ,  B29K2011/00 ,  C08L11/00

Abstract: Provided are a vulcanizate of a chloroprene rubber composition containing carbon black that generates a smaller amount of heat when used and a method for producing the same by a simpler and more convenient method. First, an unvulcanized rubber composition at least containing a chloroprene polymer and carbon black is vulcanization-molded, to give a semivulcanized molded article having a cure characteristic value, as determined by the method specified in JIS K6300-2: 2001, in the range of t10 to t80. 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.

Abstract translation: 本发明提供一种含有炭黑的氯丁二烯橡胶组合物的硫化橡胶，其使用时产生的热量少，其制造方法采用更简单，更方便的方法。 首先，将至少含有氯丁二烯聚合物和炭黑的未硫化橡胶组合物硫化成型，得到通过JIS K6300-2：2001中规定的方法测定的具有固化特性值的半硫化成型体， t10到t80。 然后，通过半硫化成膜步骤获得的半硫化模塑制品在完全变形并除去变形的状态下进一步硫化，得到所需形状的硫化产品。

公开(公告)号：US08791209B2

公开(公告)日：2014-07-29

申请号：US13685259

申请日：2012-11-26

Applicant: Tokai Rubber Industries, Ltd. ,  National University Corporation Nagaoka University of Technology

Inventor： Osamu Wakisaka ,  Akihiro Shibahara ,  Seiichi Kawahara ,  Yoshimasa Yamamoto ,  Nanthaporn Pukkate

IPC: C08F253/00 ,  C08C19/28 ,  C08F8/14 ,  C08F222/10

CPC classification number: C08F222/1006 ,  C08C1/04 ,  C08C19/28 ,  C08F8/14 ,  C08F253/00 ,  C08F222/20 ,  C08F212/34

Abstract: A modified natural rubber particle having carbon-carbon double bands assigned to multifunctional vinyl monomers graft-copolymerized onto the surface of the modified natural rubber particle, which is prepared by graft-copolymerization of multifunctional vinyl monomers having two or more carbon-carbon double bonds onto natural rubber particles or deproteinized natural rubber particles. One of the methods for producing a modified natural rubber particle includes the steps of: forming inclusion complex of the multifunctional vinyl monomers having two or more carbon-carbon double bonds with a guest-protecting agent to protect at least one of the double bonds of the multifunctional vinyl monomers; graft-copolymerizing the resulting inclusion complex onto natural rubber particles or deproteinized natural rubber particles; and deprotecting the protected double bonds by removing the guest-protecting agent from the obtained graft-copolymer.

Abstract translation: 将具有碳 - 碳双带的改性天然橡胶颗粒分配到通过将具有两个或更多个碳 - 碳双键的多官能乙烯基单体接枝共聚制成的改性天然橡胶颗粒表面上接枝共聚的多官能乙烯基单体上， 天然橡胶颗粒或脱蛋白天然橡胶颗粒。 制造改性天然橡胶颗粒的方法之一包括以下步骤：将具有两个或更多个碳 - 碳双键的多官能乙烯基单体与客体保护剂形成包合络合物，以保护至少一个双 多官能乙烯基单体; 将所得的包合物接枝共聚到天然橡胶颗粒或脱蛋白天然橡胶颗粒上; 并通过从所获得的接枝共聚物中除去客体保护剂来脱保护受保护的双键。

公开(公告)号：US12227828B2

公开(公告)日：2025-02-18

申请号：US17507417

申请日：2021-10-21

Applicant: National University Corporation Nagaoka University of Technology ,  Atsuhito Sawabe ,  Yutaka Kimura ,  WASEDA UNIVERSITY ,  DISCO Corporation

Inventor： Hideo Aida ,  Atsuhito Sawabe ,  Yutaka Kimura ,  Jun Mizuno ,  Ryuji Oshima

IPC: C23C16/02 ,  C23C14/14 ,  C23C16/27 ,  C30B23/02 ,  C30B25/18 ,  C30B29/02 ,  C30B33/00

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.

公开(公告)号：US20240313211A1

公开(公告)日：2024-09-19

申请号：US18273284

申请日：2022-02-14

Applicant: NIPPON ELECTRIC GLASS CO., LTD. ,  NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY

Inventor： Tsuyoshi HONMA ,  Aoi ODA ,  Hideo YAMAUCHI ,  Ayumu TANAKA ,  Kei TSUNODA ,  Yoshinori YAMAZAKI

IPC: H01M4/52 ,  C03C4/14 ,  C03C14/00 ,  H01G11/04 ,  H01G11/46 ,  H01M10/054

CPC classification number: H01M4/52 ,  C03C4/14 ,  C03C14/006 ,  H01M10/054 ,  C03C2204/00 ,  C03C2214/16 ,  H01G11/04 ,  H01G11/46

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.