Patents by Inventor Tomotaro Sato

Tomotaro Sato 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).

  • Immobilization of enzymes or bacterial cells
    Patent number: 4193845
    Abstract: This invention relates to polymer composition having fixed bacterial cells and/or fixed enzyme, in which the enzyme or cells are dispersed within the polymer. The polymer composition is prepared by mixing an aqueous enzyme solution or an aqueous dispersion of bacterial cells with one or more monomers selected from the group consisting of hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl methacrylate and hydroxypropyl acrylate and then polymerizing or copolymerizing the monomer(s) contained in the mixture by means of ionizing radiation at a temperature at which water in the mixture is frozen.
    Type: Grant
    Filed: May 19, 1976
    Date of Patent: March 18, 1980
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Isao Kaetsu, Hiroshi Watanabe, Tomotaro Sato, Akihiko Ito