Patents by Inventor Katutoshi Okamura

Katutoshi Okamura 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).

  • Microorganism or enzyme immobilization with a mixture of alginate and silica sol
    Patent number: 4797358
    Abstract: A microorganism or enzyme is mixed with an alginate and a silica sol in the presence of water to obtain a liquid mixture having a pH of 3 to 10 and containing an alginate concentration of 0.5 to 3.5% (w/v) and a silica concentration originating from the silica sol of 0.5 to 35% (w/v). The mixture is contacted with a gelling agent in the form of an aqueous solution to obtain a gel containing the microorganism or enzyme.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: January 10, 1989
    Assignees: Kikkoman Corporation, Fuji-Davison Chemical, Ltd.
    Inventors: Hiroshi Motai, Yaichi Fukushima, Katsumichi Osaki, Katutoshi Okamura, Kazutaka Imai