Patents by Inventor Katsuyoshi Mitsutomi

Katsuyoshi Mitsutomi 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).

  • Method of treating a waste water rich in protein
    Patent number: 4371440
    Abstract: Newly isolated yeasts assimilating a high amount of protein are added to a waste water rich in protein thereby making such yeasts assimilate protein, so that the B.O.D. of the waste water is efficiently decreased.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: February 1, 1983
    Assignees: National Tax Administration Agency, Toh Zinc Company Limited
    Inventors: Kiyoshi Yoshizawa, Kenichi Otsuka, Kikuo Nojiro, Takeo Koizumi, Katsuyoshi Mitsutomi, Seiji Nakamura
  • Treatment of waste water rich in nutrients
    Patent number: 4183807
    Abstract: Newly isolated polysaccharide assimilating yeasts are added to a waste water rich in nutrients thereby making such yeasts assimilate nutrients, so that B.O.D. of the waste water is efficiently decreased. Among the polysaccharide assimilating yeasts, ellipsoideus YS-1, FERM-P No. 4498, in particular, can decompose and assimilate sulfurous acid, starch and protein at once, and therefore the B.O.D. of the waste water from starch production plants can be considerably decreased.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: January 15, 1980
    Assignees: National Tax Administration Agency, Toho Zinc Co. Ltd., The Hokuren Federation of Agricultural Cooperative Associations
    Inventors: Kiyoshi Yoshizawa, Kikuo Nojiro, Katsuyoshi Mitsutomi, Hiroshi Hashimoto, Akira Noguchi, Kazuo Tanno