Patents Examined by Mary C. Ceperley
  • Novel substance DC 113 and production thereof
    Patent number: 5101038
    Abstract: A novel fermentation product, DC113, represented by the formula ##STR1## which has antimicrobial and antitumor activities.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: March 31, 1992
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hirofumi Nakano, Isami Takahashi, Isao Kawamoto, Toru Yasuzawa, Keiichi Takahashi, Eiji Kobayashi