Patents by Inventor Suguru Takahashi

Suguru Takahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11768037
    Abstract: A diffusion bonding heat exchanger includes a first heat transfer plate and a second heat transfer plate. A high-temperature flow path of the first heat transfer plate includes a connection channel portion configured such that a high-temperature fluid can flow across a plurality of channels within at least a range that overlaps a predetermined range in a stacking direction, the predetermined range being a range from a flow path inlet of the second heat transfer plate to a position downstream of the flow path inlet.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 26, 2023
    Assignee: Sumitomo Precision Products Co., Ltd.
    Inventors: Munehisa Yamakoshi, Yasuhiro Fujita, Eiji Togo, Suguru Takahashi
  • Publication number: 20220011053
    Abstract: An object of the present invention is to provide a diffusion bonding heat exchanger with which it is possible to reduce a thermal stress that is generated due to heat exchange between fluids significantly different from each other in temperature even in a case where the number of stacked heat transfer plates is made large. A diffusion bonding heat exchanger (100) includes a core (1) in which a plurality of heat transfer plates (HP) are stacked and diffusion-bonded to each other. The core includes a plurality of flow path blocks (40) each of which is configured to include a plurality of flow path layers (30) and a partition wall layer (50) that divides the plurality of flow path blocks. A thickness (t3) of the partition wall layer in a stacking direction is larger than an interval (t2) between flow paths arranged in the stacking direction.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 13, 2022
    Inventors: Suguru TAKAHASHI, Yasuhiro FUJITA
  • Patent number: 11022376
    Abstract: A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: June 1, 2021
    Assignee: Sumitomo Precision Products Co., Ltd.
    Inventors: Suguru Takahashi, Yasuhiro Fujita, Tatsuya Morikawa
  • Publication number: 20210116182
    Abstract: A diffusion bonding heat exchanger includes a first heat transfer plate and a second heat transfer plate. A high-temperature flow path of the first heat transfer plate includes a connection channel portion configured such that a high-temperature fluid can flow across a plurality of channels within at least a range that overlaps a predetermined range in a stacking direction, the predetermined range being a range from a flow path inlet of the second heat transfer plate to a position downstream of the flow path inlet.
    Type: Application
    Filed: March 25, 2019
    Publication date: April 22, 2021
    Inventors: Munehisa YAMAKOSHI, Yasuhiro FUJITA, Eiji TOGO, Suguru TAKAHASHI
  • Patent number: 10669638
    Abstract: Provided are an electrolyzer having excellent durability against reverse current. The electrolyzer 300 includes an anode 314, an anode chamber 310 housing the anode 314, a cathode 330, a cathode chamber 320 housing the cathode 330, and a diaphragm that separates the anode chamber 310 and the cathode chamber 320, wherein a reverse current absorption body 334 formed of a sintered compact containing nickel is disposed in at least one of an inside of the cathode chamber 320 and an inside of the anode chamber 310, and the reverse current absorption body 334 is not directly coupled to the cathode 330 and the anode 314 but is electrically connected to at least one of the cathode 330 and the anode 314.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 2, 2020
    Assignee: DE NORA PERMELEC LTD
    Inventors: Suguru Takahashi, Akihiro Madono, Takamichi Kishi, Osamu Arimoto
  • Patent number: 10590551
    Abstract: Provided are an electrode for electrolysis having excellent durability against reverse current, and a method that enables production of the electrode for electrolysis at low cost. The electrode for electrolysis 130 includes a conductive substrate 132 on which a catalyst layer is formed, and a reverse current absorption body 134 that is coupled to the conductive substrate 132 in a detachable manner, wherein the reverse current absorption body 134 is formed from a sintered compact containing nickel. The method for producing the electrode for electrolysis 130 includes a sintered compact formation step of obtaining the sintered compact by sintering a raw material powder composed of any one of Raney nickel alloy particles containing nickel and an alkali-soluble metal element, metallic nickel particles, and a mixture of Raney nickel alloy particles and metallic nickel particles, and a coupling step of coupling the sintered compact to the conductive substrate 132.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 17, 2020
    Assignee: DE NORA PERMELEC LTD
    Inventors: Suguru Takahashi, Akihiro Madono, Takamichi Kishi, Osamu Arimoto
  • Publication number: 20200049411
    Abstract: A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.
    Type: Application
    Filed: October 7, 2016
    Publication date: February 13, 2020
    Inventors: Suguru TAKAHASHI, Yasuhiro FUJITA, Tatsuya MORIKAWA
  • Publication number: 20190086155
    Abstract: A diffusion-bonded heat exchanger (100) includes a core (1) in which a first heat transfer plate (10) and a second heat transfer plate (20) are stacked and diffusion-bonded to each other, a plurality of pairs of first ports (2), and second ports (3). The first heat transfer plate (10) includes a plurality of first fluid passages (11).
    Type: Application
    Filed: March 23, 2017
    Publication date: March 21, 2019
    Inventors: Yasuhiro FUJITA, Tatsuya MORIKAWA, Suguru TAKAHASHI
  • Publication number: 20180282884
    Abstract: Provided are an electrode for electrolysis having excellent durability against reverse current, and a method that enables production of the electrode for electrolysis at low cost. The electrode for electrolysis 130 includes a conductive substrate 132 on which a catalyst layer is formed, and a reverse current absorption body 134 that is coupled to the conductive substrate 132 in a detachable manner, wherein the reverse current absorption body 134 is formed from a sintered compact containing nickel. The method for producing the electrode for electrolysis 130 includes a sintered compact formation step of obtaining the sintered compact by sintering a raw material powder composed of any one of Raney nickel alloy particles containing nickel and an alkali-soluble metal element, metallic nickel particles, and a mixture of Raney nickel alloy particles and metallic nickel particles, and a coupling step of coupling the sintered compact to the conductive substrate 132.
    Type: Application
    Filed: April 27, 2017
    Publication date: October 4, 2018
    Applicant: DE NORA PERMELEC LTD
    Inventors: Suguru TAKAHASHI, Akihiro MADONO, Takamichi KISHI, Osamu ARIMOTO
  • Publication number: 20180245224
    Abstract: Provided are an electrolyzer having excellent durability against reverse current. The electrolyzer 300 includes an anode 314, an anode chamber 310 housing the anode 314, a cathode 330, a cathode chamber 320 housing the cathode 330, and a diaphragm that separates the anode chamber 310 and the cathode chamber 320, wherein a reverse current absorption body 334 formed of a sintered compact containing nickel is disposed in at least one of an inside of the cathode chamber 320 and an inside of the anode chamber 310, and the reverse current absorption body 334 is not directly coupled to the cathode 330 and the anode 314 but is electrically connected to at least one of the cathode 330 and the anode 314.
    Type: Application
    Filed: April 27, 2017
    Publication date: August 30, 2018
    Applicant: DE NORA PERMELEC LTD
    Inventors: Suguru TAKAHASHI, Akihiro MADONO, Takamichi KISHI, Osamu ARIMOTO
  • Publication number: 20170328644
    Abstract: The heat exchanger is equipped with a heat transfer member (10, 20) including a flow port (11, 12, 21, 22) for receiving or discharging a fluid (6, 7), a plurality of heat exchange passages (13, 23), and a connection passage part (14, 24) having both ends, one of the ends being connected to the flow port and the other thereof being connected to the plurality of heat exchange passages (13, 23). The connection passage part has a tournament shape branched into two by two as it advances toward the heat exchange passages.
    Type: Application
    Filed: February 17, 2015
    Publication date: November 16, 2017
    Inventor: Suguru TAKAHASHI
  • Publication number: 20130050797
    Abstract: A vehicle light control glass device of the present invention includes a light control glass that includes a light control layer in which a transmittance changes according to an applied AC voltage, the light control glass being provided in a car body while being able to be moved up and down; and an inverter that includes a power feeding circuit, the power feeding circuit converting a DC voltage output from a battery mounted on a vehicle into the AC voltage and applying the AC voltage to the light control layer, the inverter being provided in a lower portion of the light control glass. According to the configuration, the inverter is provided in a lower portion of the light control glass, so that a gravity center of the light control glass can be lowered. Accordingly, the light control glass can smoothly be moved up and down.
    Type: Application
    Filed: May 7, 2010
    Publication date: February 28, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Suguru Takahashi, Yasuhiro Shirai