Patents by Inventor Keiichi Kagotani

Keiichi Kagotani 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).

  • Process for producing coenzyme Q
    Patent number: 4194065
    Abstract: A process is disclosed wherein yeast cells containing coenzyme Q in large quantities are efficiently produced by aerobically cultivating a yeast, in which maximum specific growth rate is not less than 0.15 hr.sup.-1 under optimum cultural conditions, in a nutrient medium in which said yeast can grow, while maintaining the dissolved oxygen concentration in the culture broth at not less than 2 ppm and controlling the average specific growth rate through the whole period of cultivation at not more than 0.1 hr.sup.-1, and coenzyme Q is recovered from the resulting yeast cells.
    Type: Grant
    Filed: October 18, 1977
    Date of Patent: March 18, 1980
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshio Shimada, Keiichi Kagotani, Norio Noda, Hajime Kawaharada, Kiyoshi Watanabe