Patents Assigned to Kyowa Khkko Kogyo Co., Ltd.
  • Process for producing L-arginine
    Patent number: 4775623
    Abstract: Disclosed is a process for producing L-arginine by transforming a host microorganism belonging to the genus Corynebacterium or Brevibacterium with a recombinant DNA of a DNA fragment containing a gene involved in the biosynthesis of L-arginine and a vector DNA, culturing the transformant in a nutrient medium, accumulating L-arginine in the culture medium and recovering L-arginine therefrom.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: October 4, 1988
    Assignee: Kyowa Khkko Kogyo Co., Ltd.
    Inventors: Ryoichi Katsumata, Haruhiko Yokoi, Tetsuo Oka