Patents by Inventor Shotaro Koga

Shotaro Koga 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: 11456447
    Abstract: A predoping method for a negative electrode active material to dope the negative electrode active material with lithium ions. The predoping method for a negative electrode active material includes: a predoping process and a post-doping modification process. In the predoping process, the negative electrode active material is doped with lithium ions, to thereby reduce a potential of the negative electrode active material relative to lithium metal. In the post-doping modification process, after the predoping process, reaction is caused between a reactive compound that is reactive with lithium ions and lithium ions doped into the negative electrode active material, to thereby increase the potential of the negative electrode active material relative to lithium metal. The potential of the negative electrode active material relative to lithium metal is 0.8 V or more at completion of the post-doping modification process.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 27, 2022
    Assignees: NISSAN MOTOR CO., LTD., JSR Corporation
    Inventors: Shotaro Doi, Yuki Kusachi, Noboru Yamauchi, Tomohiro Kaburagi, Hideaki Horie, Yusuke Nakashima, Kazuya Tsuchida, Naofumi Shoji, Koji Sumiya, Shigehito Asano, Yasuyuki Koga, Nobuo Ando, Terukazu Kokubo
  • Patent number: 11054879
    Abstract: The present invention achieves high speed safe response performance. A safety controller (100) includes a first voltage monitoring circuit (12) and a second voltage monitoring circuit (22). The first voltage monitoring circuit (12) is an AD converter which operates upon receiving electric power from a second electric power source (21) and which transmits, to a second MPU (20), a signal that gives notification of occurrence of an anomaly in a first voltage value. The second voltage monitoring circuit (22) is an AD converter which operates upon receiving electric power from a first electric power source (11) and which transmits, to a first MPU (10), a signal that gives notification of occurrence of an anomaly in a second voltage value.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 6, 2021
    Assignee: OMRON Corporation
    Inventors: Keiichi Teranishi, Daisuke Yagi, Akihiro Yonezawa, Shotaro Koga
  • Patent number: 10950874
    Abstract: A gasket manufacturing method is provided. The gasket has a base material with a bead and an elastomeric gasket body disposed in a top portion of the bead. The method includes sequentially forming the bead on one part of a plane of the base material and applying a molding material of the gasket body to the top of the bead. When forming the bead on the one part of the plane, a protrusion is formed in each end in the width direction in the top of the bead. The protrusions are utilized as a coating width defining means of the molding material when applying the molding material to the top of the bead.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 16, 2021
    Inventor: Shotaro Koga
  • Publication number: 20200249741
    Abstract: The present invention achieves high speed safe response performance. A safety controller (100) includes a first voltage monitoring circuit (12) and a second voltage monitoring circuit (22). The first voltage monitoring circuit (12) is an AD converter which operates upon receiving electric power from a second electric power source (21) and which transmits, to a second MPU (20), a signal that gives notification of occurrence of an anomaly in a first voltage value. The second voltage monitoring circuit (22) is an AD converter which operates upon receiving electric power from a first electric power source (11) and which transmits, to a first MPU (10), a signal that gives notification of occurrence of an anomaly in a second voltage value.
    Type: Application
    Filed: October 2, 2018
    Publication date: August 6, 2020
    Applicant: OMRON Corporation
    Inventors: Keiichi TERANISHI, Daisuke YAGI, Akihiro YONEZAWA, Shotaro KOGA
  • Patent number: 10476085
    Abstract: A unit cell that constitutes a fuel cell stack is obtained by sandwiching an electrolyte mem-brane/electrode structure with a cathode-side separator and an anode-side separator. A first resin member is provided along the entire periphery of the cathode-side separator in the outer peripheral portion of the cathode-side separator. Surfaces of the cathode-side separator are provided with sealing parts that cover a part of the first resin member and constitute a first sealing member.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: November 12, 2019
    Assignees: Honda Motor Co., Ltd., NOK Corporation
    Inventors: Satoshi Oyama, Go Morimoto, Satoru Terada, Shuhei Goto, Akihito Giga, Takahiro Hayashi, Takeshi Masaka, Satomi Yogo, Shotaro Koga
  • Publication number: 20190296370
    Abstract: A gasket manufacturing method is provided. The gasket has a base material with a bead and an elastomeric gasket body disposed in a top portion of the bead. The method includes sequentially forming the bead on one part of a plane of the base material and applying a molding material of the gasket body to the top of the bead. When forming the bead on the one part of the plane, a protrusion is formed in each end in the width direction in the top of the bead. The protrusions are utilized as a coating width defining means of the molding material when applying the molding material to the top of the bead.
    Type: Application
    Filed: April 11, 2017
    Publication date: September 26, 2019
    Inventor: Shotaro KOGA
  • Patent number: 10391689
    Abstract: The invention provides a method for manufacturing a substrate-integrated gasket, the method integrating a fiber substrate which is constructed by a pulp fiber having cellulose as a main component and a gasket body which is constructed by a rubber-like elastic body according to a rubber impregnation, wherein a plurality of substrate-integrated gaskets are obtained by executing an injection molding by plural stages of rubber metal molds. Further, the rubber material is filled in plural stages of metal mold cavities by passing the rubber material through the fiber substrate in which a rubber material flow channel in the metal mold is closed at its injection pressure. The invention can reduce a man hour for removing burr and cleaning a metal mold by suppressing generation of rubber burr at the molding time and can reduce an amount of disposal of a molding material, thereby achieving a good manufacturing efficiency.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: August 27, 2019
    Assignee: NOK Corporation
    Inventors: Shotaro Koga, Yuichi Kuroki
  • Patent number: 10131080
    Abstract: A molding method of a liquid elastomer can reduce an amount of disposal of a molding material, and can prevent a metal mold from being enlarged in size on a plane when a plurality of molded articles are simultaneously molded by using the metal mold, thereby achieving a good manufacturing efficiency. The molding method of the liquid elastomer molds a molded article constructed by a liquid elastomer by using a metal mold, the metal mold is a metal mold for an injection molding, a plurality of product cavity spaces are provided side by side in a mold clamping and mold opening direction of the metal mold, and a plurality of molded articles are simultaneously molded by using the metal mold. The metal mold has a sprue, runners and gates which are communicated with a plurality of product cavity spaces. The runners have orthogonal runner portions and parallel runner portions.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: November 20, 2018
    Assignee: NOK Corporation
    Inventor: Shotaro Koga
  • Publication number: 20180083295
    Abstract: A unit cell that constitutes a fuel cell stack is obtained by sandwiching an electrolyte mem-brane/electrode structure with a cathode-side separator and an anode-side separator. A first resin member is provided along the entire periphery of the cathode-side separator in the outer peripheral portion of the cathode-side separator. Surfaces of the cathode-side separator are provided with sealing parts that cover a part of the first resin member and constitute a first sealing member.
    Type: Application
    Filed: March 22, 2016
    Publication date: March 22, 2018
    Inventors: Satoshi OYAMA, Go MORIMOTO, Satoru TERADA, Shuhei GOTO, Akihito GIGA, Takahiro HAYASHI, Takeshi MASAKA, Satomi YOGO, Shotaro KOGA
  • Patent number: 9895835
    Abstract: In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds and movable molds which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity, and a non-heated cold runner which supplies the molding material from an injection device to the interior of the cavity via a gate opened in the movable mold, the fixed molds and movable molds being movable between an injection stage where the injection device and cold runner (32) are present and an opening stage near the injection stage.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: February 20, 2018
    Assignee: NOK Corporation
    Inventors: Shotaro Koga, Tetsuya Urakawa, Takeshi Masaka, Yoshihiro Kurano, Shigeru Watanabe, Toshihiro Shimazoe
  • Patent number: 9592617
    Abstract: The invention provides a processing method of a seal mounting groove in a metal plate, which can form the seal mounting groove with a small pressing pressure, whereby it is possible to respond to request for easily manufacturing and achieving a low cost, and can achieve a problem caused by a protruding phenomenon of a metal which plastically deforms going with formation of the seal mounting groove. In order to achieve the object, in a method of pressing a seal mounting groove by using a punch on a plane of a metal plate, a leading end portion of the punch is formed into an inclined surface shape which is inclined in a punch width direction, and the seal mounting groove which inclines in a groove width direction in its groove bottom portion and is formed into an inclined surface shape is formed by pressing while using the punch.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: March 14, 2017
    Assignee: NOK Corporation
    Inventors: Shotaro Koga, Masaki Sato
  • Publication number: 20160288391
    Abstract: A molding method of a liquid elastomer can reduce an amount of disposal of a molding material, and can prevent a metal mold from being enlarged in size on a plane when a plurality of molded articles are simultaneously molded by using the metal mold, thereby achieving a good manufacturing efficiency. The molding method of the liquid elastomer molds a molded article constructed by a liquid elastomer by using a metal mold, the metal mold is a metal mold for an injection molding, a plurality of product cavity spaces are provided side by side in a mold clamping and mold opening direction of the metal mold, and a plurality of molded articles are simultaneously molded by using the metal mold. The metal mold has a sprue, runners and gates which are communicated with a plurality of product cavity spaces. The runners have orthogonal runner portions and parallel runner portions.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 6, 2016
    Inventor: Shotaro Koga
  • Publication number: 20160288390
    Abstract: In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds and movable molds which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity, and a non-heated cold runner which supplies the molding material from an injection device to the interior of the cavity via a gate opened in the movable mold, the fixed molds and movable molds being movable between an injection stage where the injection device and cold runner (32) are present and an opening stage near the injection stage.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 6, 2016
    Applicant: NOK CORPORATION
    Inventors: Shotaro KOGA, Tetsuya URAKAWA, Takeshi MASAKA, Yoshihiro KURANO, Shigeru WATANABE, Toshihiro SHIMAZOE
  • Publication number: 20160052182
    Abstract: The invention provides a method for manufacturing a substrate-integrated gasket, the method integrating a fiber substrate which is constructed by a pulp fiber having cellulose as a main component and a gasket body which is constructed by a rubber-like elastic body according to a rubber impregnation, wherein a plurality of substrate-integrated gaskets are obtained by executing an injection molding by plural stages of rubber metal molds. Further, the rubber material is filled in plural stages of metal mold cavities by passing the rubber material through the fiber substrate in which a rubber material flow channel in the metal mold is closed at its injection pressure. The invention can reduce a man hour for removing burr and cleaning a metal mold by suppressing generation of rubber burr at the molding time and can reduce an amount of disposal of a molding material, thereby achieving a good manufacturing efficiency.
    Type: Application
    Filed: April 7, 2014
    Publication date: February 25, 2016
    Inventors: Shotaro KOGA, Yuichi KUROKI
  • Patent number: 9269967
    Abstract: Provided is a gasket which can improve a handling property of the gasket by enhancing a rigidity of a carrier, can secure a space saving without increasing a thickness of the gasket, and can improve a yield ratio of a resin material, in the gasket of a type that a gasket body is integrated with the resin carrier. A planar gasket used by being pinched between two members superposed with each other has a gasket body achieving a seal action, and a carrier retaining the gasket body, the carrier is formed as a predetermined planar shape by a metal mold with a resin material, and is formed as a stepped shape by setting a partial portion which is superposed with the gasket body on a plane to a thin portion, and setting the other portion which is not superposed with the gasket body on the plane to a thick portion.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: February 23, 2016
    Assignee: NOK Corporation
    Inventors: Takeshi Masaka, Yoshihiro Kurano, Shotaro Koga
  • Publication number: 20150290824
    Abstract: The invention provides a processing method of a seal mounting groove in a metal plate, which can form the seal mounting groove with a small pressing pressure, whereby it is possible to respond to request for easily manufacturing and achieving a low cost, and can achieve a problem caused by a protruding phenomenon of a metal which plastically deforms going with formation of the seal mounting groove. In order to achieve the object, in a method of pressing a seal mounting groove by using a punch on a plane of a metal plate, a leading end portion of the punch is formed into an inclined surface shape which is inclined in a punch width direction, and the seal mounting groove which inclines in a groove width direction in its groove bottom portion and is formed into an inclined surface shape is formed by pressing while using the punch.
    Type: Application
    Filed: October 7, 2013
    Publication date: October 15, 2015
    Inventors: Shotaro Koga, Masaki Sato
  • Publication number: 20130241158
    Abstract: A seal structure of the invention has a membrane electrode assembly provided with electrode layers in both surfaces of an electrolyte membrane, and separators sandwiching the membrane electrode assembly, plane dimensions of a pair of electrode layers are set to be equal to each other, a plane dimension of the electrolyte membrane is set to be larger than the electrode layer, and a plane dimension of the separator is set to be further larger than the electrolyte membrane. There are provided a first gasket retained to one separator and coming into close contact with the other separator, and a second gasket retained to the one separator and coming into close contact with the electrolyte membrane, and a reinforcing member separated from the electrode layer is provided for reinforcing the electrolyte membrane with which the second gasket comes into close contact, from a back surface side of the electrolyte membrane.
    Type: Application
    Filed: November 22, 2011
    Publication date: September 19, 2013
    Applicant: NOK CORPORATION
    Inventors: Shotaro Koga, Yoshihiro Kurano
  • Publication number: 20130065158
    Abstract: Provided is a gasket which can improve a handling property of the gasket by enhancing a rigidity of a carrier, can secure a space saving without increasing a thickness of the gasket, and can improve a yield ratio of a resin material, in the gasket of a type that a gasket body is integrated with the resin carrier. A planar gasket used by being pinched between two members superposed with each other has a gasket body achieving a seal action, and a carrier retaining the gasket body, the carrier is formed as a predetermined planar shape by a metal mold with a resin material, and is formed as a stepped shape by setting a partial portion which is superposed with the gasket body on a plane to a thin portion, and setting the other portion which is not superposed with the gasket body on the plane to a thick portion.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 14, 2013
    Applicant: NOK CORPORATION
    Inventors: Takeshi Masaka, Yoshihiro Kurano, Shotaro Koga