Patents by Inventor Yoshikazu Kusayanagi

Yoshikazu Kusayanagi 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).

  • Amine derivative and its salt and anti-ulcer agent containing the same
    Patent number: 4871765
    Abstract: This invention relates to a novel compound represented by the formula: ##STR1## wherein R is a 4-hydroxyphenyl group, a 4-carbamoylphenyl group or a 3-methanesulfonylaminophenyl group and its salt, which have an excellent anti-ulcer effect and good stability, to a process for producing the same, and to an anti-ulcer agent containing the same.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: October 3, 1989
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Hisanari Shibata, Yoshikazu Kusayanagi, Kazuhiko Hashiba
  • Intermediates for urea and thiourea derivatives
    Patent number: 4643849
    Abstract: This invention relates to amine derivatives and salts thereof. These compounds have an anti-ulcer activity which is effective to human beings and animals. This disclosure relates to such compounds, a process for the preparation thereof and an anti-ulcer agent containing the same.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: February 17, 1987
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Shiro Hirai, Hiroshi Hirano, Hirotoshi Arai, Yasuo Kiba, Hisanari Shibata, Yoshikazu Kusayanagi, Minako Yotsuji, Kazuhiko Hashiba, Kikuko Tanada