Patents by Inventor Mamoru Hattori

Mamoru Hattori 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 for disinfecting and washing of immobilized lactase
    Patent number: 4465772
    Abstract: Effective disinfection and washing of immobilized lactase from Aspergillus oryzae is carried out after a period of hydrolyzing lactose by treatment of the immobilized lactase with aqueous solutions of pH's 2 to 4 and 6 to 8.7, one or both of which contain a disinfectant. The solution having a pH of 6 to 8.7 may be a phosphate buffered solution. The lactase may be immobilized on a high polymer compound by covalent linkage. The immobilized lactase has outstanding resistance to chemicals and wide pH stability so that decrease of lactase activity is minimized.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: August 14, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hideo Hirohara, Hidefumi Yamamoto, Emiko Kawano, Mamoru Hattori, Hisao Yamaguchi