Patents by Inventor Ken-ichi Hiwatashi

Ken-ichi Hiwatashi 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).

  • Solid electrolyte type fuel cell and method of producing the same
    Patent number: 6692855
    Abstract: A solid electrolyte fuel cell comprising an air electrode, a solid electrolyte film, a fuel electrode, and an interconnector, wherein a ceramics layer which is tight in a certain degree and has a gas permeation flux Q1≦50 (m·hr−1·atm−1) is provided on the air electrode, and an interconnector film which is a tight ceramics film is provided thereon whereby the gas permeation flux Q2 of the interconnector film becomes 0.01 (m·hr−1·atm−1) or less so that a gas-permeability preferable as an interconnector film of the solid electrolyte type fuel cell can be ensured.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: February 17, 2004
    Assignee: Toto Ltd.
    Inventors: Masanobu Aizawa, Akira Ueno, Koji Omoshiki, Haruo Nishiyama, Ken-ichi Hiwatashi