Patents by Inventor Tohru Shiomitsu

Tohru Shiomitsu 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).

  • Method for depositing solid electrolyte layer
    Patent number: 6093297
    Abstract: A method for depositing solid electrolyte layer includes the steps of depositing a solid electrolyte layer on an electrode substrate by an electrophoretic deposition process, firing the solid electrolyte layer at a temperature of 1,300.degree. C. or less, and depositing another electrolyte layer on the fired solid electrolyte layer by a CVD-EVD process. In accordance with the method, thin and sufficiently dense solid electrolyte layers which are suitable for solid electrolyte fuel cells can be easily produced.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: July 25, 2000
    Assignee: NKK Corporation
    Inventors: Keiji Tomura, Tohru Shiomitsu, Takashi Ogawa, Yasuhiko Manabe, Yotaro Ohno
  • Method for manufacturing thin zirconia film
    Patent number: 5700361
    Abstract: A method for manufacturing a thin zirconia film comprises the steps: (a) preparing a suspension in which partially-stabilized or stabilized zirconia particles having electric charges are dispersed in a solvent; (b) positioning a pair of electrodes in the suspension; (c) applying an electric field between the electrodes, said zirconia particles moving to the electrode and said zirconia particles being deposited on the electrode electrochemically; and (d) sintering the zirconia film to form a partially-stabilized or stabilized thin zirconia film.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: December 23, 1997
    Assignees: NKK Corporation, Yusaku Takita
    Inventors: Tohru Shiomitsu, Yasuhiko Manabe, Takashi Ogawa, Yusaku Takita, Tatsumi Ishihara