Patents by Inventor Hideo Nagaosa

Hideo Nagaosa 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: 11973251
    Abstract: A fuel cell is provided with: a membrane electrode assembly (MEA); and a cathode-side separator assembled to the MEA, the cathode-side separator including first passages on a first surface of the cathode-side separator on a side closer to the MEA, and second passages on a second surface of the cathode-side separator on an opposite side, the first and second passages allowing oxidant gas to flow through the first and second passages, respectively. The first passages include first recessed portions on the first surface so as to extend from one end of the cathode-side separator to the other end, the second passages include second recessed portions on the second surface so as to extend from the one end to the other end and to be arranged alternately with the first recessed portions, and a penetration hole on a bottom face of the second recessed portion penetrating through the cathode-side separator.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 30, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Adachi, Naoki Takehiro, Masaaki Matsusue, Masayuki Ito, Hideo Nagaosa
  • Patent number: 11626610
    Abstract: A fuel cell stack includes: a first stack including: first unit cells stacked; and a first outer peripheral surface around a first stacking direction of the first unit cells; a second stack that is juxtaposed to the first stack including; second unit cells stacked along the first stacking direction of the first unit cells; and a second outer peripheral surface around a second stacking direction of the second unit cells; an external gas manifold that supplies and discharges a reactant gas to and from the first and second stacks; and an external coolant manifold that supplies and discharges a coolant to and from the first and second stacks.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 11, 2023
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideo Nagaosa, Kota Manabe, Yoshihiro Shinozaki
  • Publication number: 20210359322
    Abstract: A fuel cell is provided with: a membrane electrode assembly (MEA); and a cathode-side separator assembled to the MEA, the cathode-side separator including first passages on a first surface of the cathode-side separator on a side closer to the MEA, and second passages on a second surface of the cathode-side separator on an opposite side, the first and second passages allowing oxidant gas to flow through the first and second passages, respectively.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto ADACHI, Naoki TAKEHIRO, Masaaki MATSUSUE, Masayuki ITO, Hideo NAGAOSA
  • Patent number: 11108073
    Abstract: A manufacturing method of a fuel cell stack includes: stacking fuel cells on a first end plate; superposing a pressure plate, on which protruding portions are provided along an outer periphery thereof, on a stacked body of the fuel cells so that the protruding portions protrude outward from side faces of the stacked body; pressing the protruding portions so that the stacked body is pressed between the first end and the pressure plates; measuring a length of the stacked body in a stacking direction while pressing the protruding portions; superposing on the pressure plate an adjustment plate having a thickness in accordance with the measured length while pressing the protruding portions; and fixing a second end plate to the first end plate so as to sandwich the stacked body, the pressure plate and the adjustment plate between the first and the second end plates while pressing the protruding portions.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: August 31, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideo Nagaosa
  • Patent number: 11063287
    Abstract: A fuel cell stack includes: a stacked body including unit cells stacked; end plates sandwiching the stacked body in a stacking direction in which the unit cells are stacked; a tension plate fastening the end plates; and fixing mechanisms fixing the tension plate to the end plates.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: July 13, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideo Nagaosa
  • Publication number: 20200144656
    Abstract: A fuel cell stack includes: a first stack including: first unit cells stacked; and a first outer peripheral surface around a first stacking direction of the first unit cells; a second stack that is juxtaposed to the first stack including; second unit cells stacked along the first stacking direction of the first unit cells; and a second outer peripheral surface around a second stacking direction of the second unit cells; an external gas manifold that supplies and discharges a reactant gas to and from the first and second stacks; and an external coolant manifold that supplies and discharges a coolant to and from the first and second stacks.
    Type: Application
    Filed: September 17, 2019
    Publication date: May 7, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideo NAGAOSA, Kota MANABE, Yoshihiro SHINOZAKI
  • Patent number: 10556494
    Abstract: When it is determined that the vehicle is stopped, a control unit blocks communication between a first opening and a fuel cell by a first valve. When a fan is being driven and communication between the first opening and the fuel cell is blocked by the first valve, a second valve opens a third opening.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: February 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa
  • Publication number: 20190252711
    Abstract: A fuel cell stack includes: a stacked body including unit cells stacked; end plates sandwiching the stacked body in a stacking direction in which the unit cells are stacked; a tension plate fastening the end plates; and fixing mechanisms fixing the tension plate to the end plates.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 15, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideo Nagaosa
  • Publication number: 20190252710
    Abstract: A manufacturing method of a fuel cell stack includes: stacking fuel cells on a first end plate; superposing a pressure plate, on which protruding portions are provided along an outer periphery thereof, on a stacked body of the fuel cells so that the protruding portions protrude outward from side faces of the stacked body; pressing the protruding portions so that the stacked body is pressed between the first end and the pressure plates; measuring a length of the stacked body in a stacking direction while pressing the protruding portions; superposing on the pressure plate an adjustment plate having a thickness in accordance with the measured length while pressing the protruding portions; and fixing a second end plate to the first end plate so as to sandwich the stacked body, the pressure plate and the adjustment plate between the first and the second end plates while pressing the protruding portions.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 15, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo NAGAOSA
  • Patent number: 10202049
    Abstract: An air-cooled fuel-cell vehicle includes: a drive motor for the vehicle; an air-cooled fuel cell; an intake duct which is placed on a vehicle front side relative to the fuel cell and guides air to the fuel cell; an air-intake shutter mechanism which opens and closes the intake duct; a storage chamber provided on the vehicle front side relative to a passenger compartment of the vehicle and accommodates the fuel cell, the intake duct, and the air-intake shutter mechanism; a controlling portion which controls the air-intake shutter mechanism; and a collision detector which detects a front collision of the vehicle. The controlling portion controls the air-intake shutter mechanism to a closed side when the front collision of the vehicle is detected, and the intake duct includes a tubular metal plate portion or a resin portion containing an elastomer component.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 12, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa
  • Patent number: 9963171
    Abstract: An electrically driven vehicle comprises: a body frame arranged in a holding compartment formed in front of a passenger compartment; a suspension member fastened to the body frame in the holding compartment through a rear side fastening structure; and a fuel cell stack supported on the suspension member through a rear side mount at a position in front of the rear side fastening structure. When a serious collision occurs, the fuel cell stack moves rearward and strikes the fastening structure whereby the fastening structure breaks and thereby suspension member separates from the body frame and the fuel cell stack moves downward and heads toward the inside of the shelter space between the holding compartment and a road surface.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 8, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa
  • Publication number: 20180069256
    Abstract: A fuel cell is provided with: a membrane electrode assembly (MEA); and a cathode-side separator assembled to the MEA, the cathode-side separator including first passages on a first surface of the cathode-side separator on a side closer to the MEA, and second passages on a second surface of the cathode-side separator on an opposite side, the first and second passages allowing oxidant gas to flow through the first and second passages, respectively.
    Type: Application
    Filed: August 14, 2017
    Publication date: March 8, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto ADACHI, Naoki TAKEHIRO, Masaaki MATSUSUE, Masayuki ITO, Hideo NAGAOSA
  • Patent number: 9902249
    Abstract: In order to secure a driving performance of an electric vehicle while stably supporting a fuel cell stack, a fuel cell stack generating electric power, a motor generator, and an electrical adjuster are accommodated in an accommodation compartment formed at a front side of a passenger compartment in a vehicle length direction. The electric motor and the electrical adjuster are housed in a common, bottom casing and the bottom casing is arranged at a bottom of the accommodation compartment. A stack support surface which is flat and extends in substantially a horizontal direction is formed at a top of the casing. The fuel cell stack is arranged above the casing and is supported by the casing through mounts arranged on the stack support surface.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa
  • Publication number: 20170349040
    Abstract: When it is determined that the vehicle is stopped, a control unit blocks communication between a first opening and a fuel cell by a first valve. When a fan is being driven and communication between the first opening and the fuel cell is blocked by the first valve, a second valve opens a third opening.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 7, 2017
    Inventor: Hideo NAGAOSA
  • Publication number: 20170297450
    Abstract: An air-cooled fuel-cell vehicle includes: a drive motor for the vehicle; an air-cooled fuel cell; an intake duct which is placed on a vehicle front side relative to the fuel cell and guides air to the fuel cell; an air-intake shutter mechanism which opens and closes the intake duct; a storage chamber provided on the vehicle front side relative to a passenger compartment of the vehicle and accommodates the fuel cell, the intake duct, and the air-intake shutter mechanism; a controlling portion which controls the air-intake shutter mechanism; and a collision detector which detects a front collision of the vehicle. The controlling portion controls the air-intake shutter mechanism to a closed side when the front collision of the vehicle is detected, and the intake duct includes a tubular metal plate portion or a resin portion containing an elastomer component.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 19, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo NAGAOSA
  • Publication number: 20170096172
    Abstract: An electrically driven vehicle comprises: a body frame arranged in a holding compartment formed in front of a passenger compartment; a suspension member fastened to the body frame in the holding compartment through a rear side fastening structure; and a fuel cell stack supported on the suspension member through a rear side mount at a position in front of the rear side fastening structure. When a serious collision occurs, the fuel cell stack moves rearward and strikes the fastening structure whereby the fastening structure breaks and thereby suspension member separates from the body frame and the fuel cell stack moves downward and heads toward the inside of the shelter space between the holding compartment and a road surface.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 6, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo NAGAOSA
  • Publication number: 20160368358
    Abstract: In order to secure a driving performance of an electric vehicle while stably supporting a fuel cell stack, a fuel cell stack generating electric power, a motor generator, and an electrical adjuster are accommodated in an accommodation compartment formed at a front side of a passenger compartment in a vehicle length direction. The electric motor and the electrical adjuster are housed in a common, bottom casing and the bottom casing is arranged at a bottom of the accommodation compartment. A stack support surface which is flat and extends in substantially a horizontal direction is formed at a top of the casing. The fuel cell stack is arranged above the casing and is supported by the casing through mounts arranged on the stack support surface.
    Type: Application
    Filed: January 14, 2015
    Publication date: December 22, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo NAGAOSA
  • Publication number: 20160207386
    Abstract: An electric vehicle includes a suspension member attached to a vehicle body, a motor fixed to the suspension member, a power source, an electronic device to which electric power is supplied from the battery, and a holding mechanism including a holder and a fixing portion. The holder collectively holds the battery and the electronic device in an integrated manner. The fixing portion fixes the holder to the motor.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 21, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo NAGAOSA
  • Patent number: 9105891
    Abstract: A fuel cell system includes a fuel cell of a solid polymer type that generates power by using a hydrogen-containing gas as a fuel gas, a reformer that generates the fuel gas by reforming ammonia, and a supply amount ratio control unit that controls a supply amount ratio of oxygen and ammonia to be supplied the reformer.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 11, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa
  • Publication number: 20120288776
    Abstract: A fuel cell system includes a fuel cell of a solid polymer type that generates power by using a hydrogen-containing gas as a fuel gas, a reformer that generates the fuel gas by reforming ammonia, and a supply amount ratio control unit that controls a supply amount ratio of oxygen and ammonia to be supplied the reformer.
    Type: Application
    Filed: January 11, 2011
    Publication date: November 15, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hideo Nagaosa