Patents by Inventor Yasuo Izutsu

Yasuo Izutsu 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).

  • Pullulan and sugar coated pharmaceutical composition
    Patent number: 4650666
    Abstract: Novel sugar-coated pharmaceutical composition such as tablets, pills, granules or the like, which contains pullulan in the sugar layer for the purpose of preventing brownish color change of the composition with lapse of time, and a method for preparing the composition.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: March 17, 1987
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Yasuo Izutsu, Kiyomi Sogo, Shizuo Okamoto, Terukazu Tanaka