Patents by Inventor Norikatsu SEKINE

Norikatsu SEKINE 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).

  • Fuel cell stack seal structure and production method therefor
    Patent number: 10615433
    Abstract: A fuel cell stack seal structure of a fuel cell stack, the fuel cell stack including a plurality of fuel cell single cells that are stacked, each of the fuel cell single cells including a membrane electrode assembly and a pair of separators holding the membrane electrode assembly between the pair of separators, includes inner peripheral sealing members and an outer peripheral sealing member at peripheral edges of a pair of separators, in which the inner peripheral sealing members close a gap between inner peripheral ribs that protrude at least towards a mutually facing sides of the pair of separators, and the outer peripheral sealing member that closes a gap between outer peripheral ribs that protrude at least towards the mutually facing sides of the pair of separators. The inner peripheral sealing members and the outer peripheral sealing member form a first closed space between the inner peripheral sealing members and the outer peripheral sealing member.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 7, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Norikatsu Sekine, Yasuhiro Numao, Keiji Ichihara, Takanori Oku, Hiroshi Miyaoka
  • FUEL CELL STACK SEAL STRUCTURE AND PRODUCTION METHOD THEREFOR
    Publication number: 20180358634
    Abstract: A fuel cell stack seal structure of a fuel cell stack, the fuel cell stack including a plurality of fuel cell single cells that are stacked, each of the fuel cell single cells including a membrane electrode assembly and a pair of separators holding the membrane electrode assembly between the pair of separators, includes inner peripheral sealing members and an outer peripheral sealing member at peripheral edges of a pair of separators, in which the inner peripheral sealing members close a gap between inner peripheral ribs that protrude at least towards a mutually facing sides of the pair of separators, and the outer peripheral sealing member that closes a gap between outer peripheral ribs that protrude at least towards the mutually facing sides of the pair of separators. The inner peripheral sealing members and the outer peripheral sealing member form a first closed space between the inner peripheral sealing members and the outer peripheral sealing member.
    Type: Application
    Filed: September 26, 2016
    Publication date: December 13, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Norikatsu SEKINE, Yasuhiro NUMAO, Keiji ICHIHARA, Takanori OKU, Hiroshi MIYAOKA