Patents by Inventor Eisuke Ogata

Eisuke Ogata 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).

  • Preparation of coal liquefaction catalyst
    Patent number: 4987113
    Abstract: When low-quality iron ore is used as a coal liquefaction catalyst, in order to improve its catalytic activity it is subjected to one or a combination of reduction, heat-treatment, or washing with or immersion in water for a long period of time so as to remove catalyst poisons before it is used as a catalyst. When high-quality iron ore is used, it is first reduced with carbon monoxide and then used as a catalyst.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: January 22, 1991
    Assignee: Nippon Kokan Kaubshiki Kaisha
    Inventors: Tatsuo Fukuyama, Toshihiko Okada, Sanseki Moriguchi, Yoshio Kamiya, Eisuke Ogata
  • Method of liquefying coal
    Patent number: 4820405
    Abstract: When low-quality iron ore is used as a coal liquefaction catalyst, in order to improve its catalytic activity it is subjected to one or a combination of reduction, heat-treatment, or washing with or immersion in water for a long period of time so as to remove catalyst poisons before it is used as a catalyst. When high-quality iron ore is used, it is first reduced with carbon monoxide and then used as a catalyst.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: April 11, 1989
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Tatsuo Fukuyama, Toshihiko Okada, Sanseki Moriguchi, Yoshio Kamiya, Eisuke Ogata