Patents Assigned to Yusaku Takita
  • 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
  • Patent number: 5334565
    Abstract: Disclosed is a method for producing long silicon nitride whiskers. The production method encompasses reacting diatomaceous earth on a carbon boat in a gas flow composed of a reducing agent and a nitriding agent at a temperature of 1,, C.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: August 2, 1994
    Assignees: Nakama Syokai Company, Tokai Kogyo Company, Yusaku Takita, Ohita Gas Co., Ltd., Ohgasu Co., Ltd.
    Inventors: Yusaku Takita, Tatsumi Ishihara, Yukako Mizuhara, Masao Noguchi