Patents by Inventor Takuro KIKUCHI

Takuro KIKUCHI 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: 11916183
    Abstract: The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack. At least one of the power storage units is provided with an overhang member on an outer peripheral surface of the sealing member. The overhang member includes an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion formed at a lower end of the inclined portion.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: February 27, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Daiki Terashima, Satoshi Morioka, Takuro Kikuchi, Motoyoshi Okumura, Kojiro Tamaru, Hiromi Ueda, Satoshi Hamaoka, Masahiro Yamada
  • Publication number: 20230311952
    Abstract: A vehicle controller includes a processor configured to determine whether to transfer driving control of a vehicle under autonomous driving control to a driver, notify the driver of a transition demand via a notification device in the case where driving control will be transferred to the driver, execute deceleration control of the vehicle at predetermined timing after notification timing of the transition demand, and continue deceleration control of the vehicle even after a predetermined period from the notification timing in the case where the speed of the vehicle decreases to a predetermined speed threshold or less within the predetermined period and where operation by the driver to take over driving is not detected.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Patent number: 11695181
    Abstract: A power storage module including: a stacked body that includes electrodes stacked along a first direction; a sealing body that includes a first sealing portion joined to an edge portion of each of the electrodes, forms an inner space between the electrodes adjacent to each other, and seals the inner space; and an electrolytic solution that is stored in the inner space and includes an alkali solution. The electrodes include bipolar electrodes, and a negative terminal electrode. The power storage module includes surplus spaces different from the inner space on a route of an alkali creep phenomenon in which the electrolytic solution reaches the outside from the inner space through the negative terminal electrode.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: July 4, 2023
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Nakamura, Yuki Chujo, Masahiro Yamada, Takayuki Hirose, Nobuyasu Haga, Motoyoshi Okumura, Takuro Kikuchi
  • Patent number: 11552356
    Abstract: An electricity storage device member is provided. The electricity storage device member includes a base material mainly composed of a metal and a resin layer stacked on the base material, in which the resin layer contains a crosslinked fluororesin.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 10, 2023
    Assignees: Sumitomo Electric Fine Polymer, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Nakabayashi, Hong-Phuc Nguyen, Keiji Kaita, Motoyoshi Okumura, Takuro Kikuchi
  • Publication number: 20220376351
    Abstract: A power storage module includes power storage elements having electrode surfaces of positive electrode surfaces and negative electrode surfaces on front and back surfaces thereof, a conductive member electrically connected to the electrode surfaces of the power storage elements, and a wiring module electrically connected to the conductive member. The power storage elements are arranged in an arrangement direction such that the electrode surfaces of the power storage elements that are adjacent to each other are opposed to each other. The electrode surfaces of the power storage elements that are adjacent to each other are electrically connected by the conductive member that is disposed between the power storage elements that are adjacent to each other. The wiring module is disposed between the power storage elements that are adjacent to each other. The conductive member and the wiring module are disposed inside an outline of the power storage elements seen from the arrangement direction.
    Type: Application
    Filed: October 20, 2020
    Publication date: November 24, 2022
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nobuyuki MATSUMURA, Hiroki SHIMODA, Motoyoshi OKUMURA, Takuro KIKUCHI, Satoshi MORIOKA, Daiki TERASHIMA
  • Publication number: 20220297694
    Abstract: A vehicle controller includes a processor configured to detect the type of lane line demarcating a travel lane being traveled by a vehicle from a sensor signal generated by a sensor mounted on the vehicle, the sensor signal representing surroundings of the vehicle, and determine whether the detected type of lane line matches the type of lane line represented in map information between the travel lane and an adjacent lane adjacent thereto at the current position of the vehicle when a lane change to the adjacent lane is required. The processor is further configured to control the vehicle to start a lane change to the adjacent lane in the case that the detected type of lane line matches the type of lane line represented in the map information.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 22, 2022
    Inventor: Takuro KIKUCHI
  • Publication number: 20220247023
    Abstract: A power storage device includes a module laminate including a plurality of power storage modules arranged in one direction; a pair of end plates respectively arranged at both ends of the module laminate in the one direction; a fastening bolt configured to fasten the pair of end plates together around the module laminate and apply a predetermined restraint load to the module laminate via the end plate; and a collar member including a through-hole allowing the fastening member to be inserted therethrough, the collar member being sandwiched by the pair of end plates around the module laminate. The through-hole of the collar member is eccentric with respect to a center axis of the collar member so as to approach a side where the module laminate is arranged.
    Type: Application
    Filed: May 25, 2020
    Publication date: August 4, 2022
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoto MORISAKU, Hirokazu KOTAKE, Satoshi MORIOKA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20220190327
    Abstract: A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, an alkaline storage battery using this hydrogen storage alloy, and a vehicle; wherein a fine-grained hydrogen storage alloy is used for an alkaline storage battery that has a crystal structure of an A2B7-type structure as a main phase and is represented by a general formula: (La1-aSma)1-bMgbNicAldCre (where suffixes a, b, c, d, and e meet the following conditions: 0?a?0.35, 0.15?b?0.30, 0.02?d?0.10, 0?e?0.10, 3.20?c+d+e?3.50, and 0<a+e), and an alkaline storage battery using this hydrogen storage alloy for a negative electrode. A vehicle also includes this alkaline storage battery as an electricity supply source for a motor.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 16, 2022
    Applicants: JAPAN METALS AND CHEMICALS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takao SAWA, Saki NOTOYAMA, Tomoki SOUMA, Katsuyuki KUDO, Takuya WATANABE, Masato HOZUMI, Motoyoshi OKUMURA, Masashi KODAMA, Takuro KIKUCHI, Takeo OKANISHI, Atsushi MINAGATA, Shuhei MOCHIDA, Hiroyuki SASAKI, Satoshi KONO
  • Publication number: 20220093956
    Abstract: The power storage device includes power storage units arranged with a conductive plate interposed therebetween in the vertical direction, each of the power storage units includes an electrode stack including bipolar electrodes stacked with a separator interposed therebetween, and a sealing member provided around the electrode stack so as to seal a housing space formed between adjacent electrodes of the electrode stack. At least one of the power storage units is provided with an overhang member on an outer peripheral surface of the sealing member. The overhang member includes an inclined portion that extends from the outer peripheral surface of the sealing member toward the outside of the power storage unit and inclines downward as it leaves away from the outer peripheral surface of the sealing member, and a top portion formed at a lower end of the inclined portion.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 24, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daiki TERASHIMA, Satoshi MORIOKA, Takuro KIKUCHI, Motoyoshi OKUMURA, Kojiro TAMARU, Hiromi UEDA, Satoshi HAMAOKA, Masahiro YAMADA
  • Publication number: 20220069395
    Abstract: A power storage device includes a plurality of power storage modules laminated in a first direction via a conductive plate. A plurality of power storage modules include a plurality of laminates including each of the plurality of laminated electrodes, and a sealed body provided on each side surface of a plurality of laminates. The plurality of laminates are restrained in the first direction by a restraining member in a state of being laminated via the conductive plate. The sealed body includes a main body portion covering each side surface of the plurality of laminates, protruding portions protruding in the width direction intersecting the first direction with end portions of the main body portion as base ends, and at least one deformation suppressing portion protruding from the protruding portion in the first direction and forming a protruding shape.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 3, 2022
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro YAMADA, Hiromi UEDA, Satoshi MORIOKA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Patent number: 11189858
    Abstract: An electricity storage module includes: a laminate including a plurality of bipolar electrodes, each bipolar electrode including an electrode plate, a positive electrode, and a negative electrode; a frame body holding an edge portion of the electrode plate and including an opening that communicates with internal spaces; and a pressure regulating valve connected to the opening. Each internal space is provided between the bipolar electrodes. Each internal space accommodates an electrolytic solution. An exhaust port and a communication space are provided in the pressure regulating valve. The exhaust port is provided for exhausting gas to an external space. The communication space communicates with the exhaust port. The communication space includes a space portion positioned below a lower end of the exhaust port.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 30, 2021
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taku Inoue, Takayuki Hirose, Motoyoshi Okumura, Takuro Kikuchi
  • Patent number: 10950848
    Abstract: A positive electrode for an alkaline secondary battery includes a positive electrode substrate and a positive electrode composite material that is provided on at least one surface of the positive electrode substrate. The positive electrode substrate contains a Ni foil or a Ni-plated steel foil. The positive electrode composite material contains a positive electrode active material. The positive electrode active material contains nickel hydroxide coated with cobalt oxyhydroxide. A weight per unit area of the positive electrode composite material with respect to the one surface of the positive electrode substrate is 0.02 g/cm2 to 0.035 g/cm2.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 16, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuro Kikuchi, Motoyoshi Okumura
  • Patent number: 10910644
    Abstract: A nickel-hydrogen battery includes a plurality of electrodes each including a current collector made of a metal, and disposed in a manner stacked in a first direction; a separator disposed between adjacent electrodes of the plurality of electrodes; a plurality of resin members disposed on peripheral portions of the plurality of electrodes to ensure a clearance between the adjacent electrodes; and a surface treatment layer covering one surface of the current collector at least in the peripheral portion of the plurality of electrode. The surface treatment layer includes a plurality of protrusions from the one surface. Widest parts of the protrusions are located above base ends thereof, and parts of the resin members are interposed between adjacent protrusions, across a range from tip ends to the base ends thereof.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomohiro Nakamura, Takayuki Hirose, Kojiro Tamaru, Yuki Sugimoto, Hirokuni Akiyama, Motoyoshi Okumura, Takuro Kikuchi, Hidenori Takahashi, Nobuyasu Haga
  • Publication number: 20210020876
    Abstract: A power storage module including: a stacked body that includes electrodes stacked along a first direction; a sealing body that includes a first sealing portion joined to an edge portion of each of the electrodes, forms an inner space between the electrodes adjacent to each other, and seals the inner space; and an electrolytic solution that is stored in the inner space and includes an alkali solution. The electrodes include bipolar electrodes, and a negative terminal electrode. The power storage module includes surplus spaces different from the inner space on a route of an alkali creep phenomenon in which the electrolytic solution reaches the outside from the inner space through the negative terminal electrode.
    Type: Application
    Filed: April 4, 2019
    Publication date: January 21, 2021
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro NAKAMURA, Yuki CHUJO, Masahiro YAMADA, Takayuki HIROSE, Nobuyasu HAGA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200411809
    Abstract: A power storage device includes a power storage module and a pair of conductive plates configured to sandwich the power storage module. The power storage module has an electrode laminate and a sealing body configured to seal the electrode laminate. The electrode laminate includes a plurality of laminated bipolar electrodes and a pair of terminal electrodes. The pair of terminal electrodes is disposed at laminate ends of the electrode laminate and each includes an electrode plate. The sealing body has a pair of resin portions provided at the edge portions of the terminal electrodes. At least one conductive plate of the pair of conductive plates is disposed to oppose the terminal electrode in the laminating direction of the electrode laminate and to overlap a corresponding resin portion of the pair of resin portions when seen in the laminating direction.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 31, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki CHUJO, Takayuki HIROSE, Tomohiro NAKAMURA, Masahiro YAMADA, Nobuyasu HAGA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200227772
    Abstract: An electricity storage module includes: a laminate including a plurality of bipolar electrodes, each bipolar electrode including an electrode plate, a positive electrode, and a negative electrode; a frame body holding an edge portion of the electrode plate and including an opening that communicates with internal spaces; and a pressure regulating valve connected to the opening. Each internal space is provided between the bipolar electrodes. Each internal space accommodates an electrolytic solution. An exhaust port and a communication space are provided in the pressure regulating valve. The exhaust port is provided for exhausting gas to an external space. The communication space communicates with the exhaust port. The communication space includes a space portion positioned below a lower end of the exhaust port.
    Type: Application
    Filed: August 21, 2018
    Publication date: July 16, 2020
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taku INOUE, Takayuki HIROSE, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200119317
    Abstract: An electricity storage device member is provided. The electricity storage device member includes a base material mainly composed of a metal and a resin layer stacked on the base material, in which the resin layer contains a crosslinked fluororesin.
    Type: Application
    Filed: March 20, 2018
    Publication date: April 16, 2020
    Applicants: Sumitomo Electric Fine Polymer, Inc., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto NAKABAYASHI, Hong-Phuc NGUYEN, Keiji KAITA, Motoyoshi OKUMURA, Takuro KIKUCHI
  • Publication number: 20200058935
    Abstract: A nickel-hydrogen battery includes a plurality of electrodes each including a current collector made of a metal, and disposed in a manner stacked in a first direction; a separator disposed between adjacent electrodes of the plurality of electrodes; a plurality of resin members disposed on peripheral portions of the plurality of electrodes to ensure a clearance between the adjacent electrodes; and a surface treatment layer covering one surface of the current collector at least in the peripheral portion of the plurality of electrode. The surface treatment layer includes a plurality of protrusions from the one surface. Widest parts of the protrusions are located above base ends thereof, and a parts of the resin members are interposed between adjacent protrusions, across a range from the tip ends to the base ends thereof.
    Type: Application
    Filed: January 24, 2018
    Publication date: February 20, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomohiro NAKAMURA, Takayuki HIROSE, Kojiro TAMARU, Yuki SUGIMOTO, Hirokuni AKIYAMA, Motoyoshi OKUMURA, Takuro KIKUCHI, Hidenori TAKAHASHI, Nobuyasu HAGA
  • Patent number: 10446805
    Abstract: In a stacked battery according to one aspect of the present disclosure, a first current collecting case includes: a first facing portion facing the electrode body in the stacking direction of the electrode body; and positive-electrode wall portions that extend from edge portions of the first facing portion so as to cover first side portions of the electrode body, and whose inner surfaces are electrically connected to edge sides of positive-electrode protruding portions. In the stacking direction of the electrode body, a second current collecting case includes: a second facing portion facing the electrode body in the stacking direction of the electrode body; and negative-electrode wall portions that extend from edge portions of the second facing portion so as to cover second side portions of the electrode body, and whose inner surfaces are electrically connected to edge sides of negative-electrode protruding portions.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takuro Kikuchi
  • Publication number: 20190115589
    Abstract: A positive electrode for an alkaline secondary battery includes a positive electrode substrate and a positive electrode composite material that is provided on at least one surface of the positive electrode substrate. The positive electrode substrate contains a Ni foil or a Ni-plated steel foil. The positive electrode composite material contains a positive electrode active material. The positive electrode active material contains nickel hydroxide coated with cobalt oxyhydroxide. A weight per unit area of the positive electrode composite material with respect to the one surface of the positive electrode substrate is 0.02 g/cm2 to 0.035 g/cm2.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 18, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuro KIKUCHI, Motoyoshi OKUMURA