Patents by Inventor Yoshio Kamiya

Yoshio Kamiya 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).

  • Substituted benzoic acids
    Patent number: 5155258
    Abstract: A process for producing substituted benzoic acids represented by General Formula II: ##STR1## wherein Q represents a member selected from the group consisting of hydrogen, halogen atoms, --CN, --NO.sub.2, --COOH, --COOR.sub.1, --COR.sub.1, --SR.sub.1, --SO.sub.2 R.sub.1 and --OR.sub.2 ; and Y and Z each represents a member selected from the group consisting of halogen atoms, --CN, --NO.sub.2, --COOH, --COOR.sub.1, --COR.sub.1, --SR.sub.1, --SO.sub.2 R.sub.1 and --OR.sub.2 (in which R.sub.1 represents an alkyl group containing 1 to 10 carbon atoms; and R.sub.2 represents an alkyl group containing 1 to 10 carbon atoms or a phenyl group which may be substituted), which comprises oxidizing a substituted toluene represented by General Formula I: ##STR2## wherein W represents a member selected from the group consisting of hydrogen, halogen atoms, --CH.sub.3, --CN, --NO.sub.2, --COOH, --COOR.sub.1, --COR.sub.1, --SR.sub.1, --SO.sub.2 R.sub.1 and --OR.sub.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: October 13, 1992
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshio Kamiya, Shigeru Futamura, Shinichiro Takigawa, Norio Tanaka, Shuzo Shinke
  • Power unit for hydraulic elevator
    Patent number: 5078236
    Abstract: A hydraulic elevator power unit has an oiltight type detector for detecting the number of revolutions of an electric motor. A leak oil hole formed in a lower end portion of the detector is connected to a leak oil tank. The operating oil entering the detector is discharged through the leak oil hole, thereby preventing the detecting portion from being immersed in the operating oil.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: January 7, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Motoo Shimoaki, Yoshio Kamiya, Yukihiro Takigawa, Hiroshi Usida, Tatsuro Miyake
  • 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