Patents by Inventor TOSHIHIRO OTSUKA

TOSHIHIRO OTSUKA 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
    Patent number: 11108055
    Abstract: A fuel cell includes: an electrolyte membrane; a cathode positioned on a first surface of the electrolyte membrane; an anode positioned on a second surface of the electrolyte membrane; a cathode-side sealant positioned on a surface of the cathode different from the electrolyte membrane side of the cathode; an anode-side sealant positioned on a surface of the anode different from the electrolyte membrane side of the anode; a cathode-side separator positioned on a surface of the cathode-side sealant different from the cathode side of the cathode-side sealant; and an anode-side separator positioned on a surface of the anode-side sealant different from the anode side of the anode-side sealant. The anode-side separator has a projection on a surface stacked on the anode-side sealant, or the cathode-side separator has a projection on a surface stacked on the cathode-side sealant.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: August 31, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoko Kasai, Yoshifumi Taguchi, Tsutomu Kawashima, Tsutomu Fujii, Shinichiro Imura, Toshihiro Otsuka, Miyuki Yoshimoto, Kozue Kuniyoshi
  • FUEL CELL
    Publication number: 20190115602
    Abstract: A fuel cell includes: an electrolyte membrane; a cathode positioned on a first surface of the electrolyte membrane; an anode positioned on a second surface of the electrolyte membrane; a cathode-side sealant positioned on a surface of the cathode different from the electrolyte membrane side of the cathode; an anode-side sealant positioned on a surface of the anode different from the electrolyte membrane side of the anode; a cathode-side separator positioned on a surface of the cathode-side sealant different from the cathode side of the cathode-side sealant; and an anode-side separator positioned on a surface of the anode-side sealant different from the anode side of the anode-side sealant. The anode-side separator has a projection on a surface stacked on the anode-side sealant, or the cathode-side separator has a projection on a surface stacked on the cathode-side sealant.
    Type: Application
    Filed: December 4, 2018
    Publication date: April 18, 2019
    Inventors: YOKO KASAI, YOSHIFUMI TAGUCHI, TSUTOMU KAWASHIMA, TSUTOMU FUJII, SHINICHIRO IMURA, TOSHIHIRO OTSUKA, MIYUKI YOSHIMOTO, KOZUE KUNIYOSHI