Patents by Inventor Shozo Kawada

Shozo Kawada 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).

  • Diterpene compound and process for producing the same
    Patent number: 5189187
    Abstract: A clerodane-type diterpene derivative, which has antibacterial and antitumor activities, as well as chemically equivalent tautomers thereof and a process for producing said derivative using a microorganism belonging to the genus Streptomyces.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: February 23, 1993
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hirofumi Nakano, Shozo Kawada, Yoichi Uosaki, Yutaka Saito, Katsushige Gomi, Toshiaki Iwazaki
  • Process for producing diterpene compounds
    Patent number: 5151352
    Abstract: A clerodane-type diterpene derivative, which has antibacterial and antitumor activities, as well as chemically equivalent tautomers thereof and a process for producing said derivative using a microorganism belonging to the genus Streptomyces.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: September 29, 1992
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hirofumi Nakano, Shozo Kawada, Yoichi Uosaki, Yutaka Saito, Katsushige Gomi, Toshiaki Iwazaki