Patents by Inventor Tetsuyoshi Suizu

Tetsuyoshi Suizu 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).

  • Quality improvement of alcoholic liquors
    Patent number: 4844911
    Abstract: Alcoholic liquors containing carbamide are treated with the urease which has the optimal pH for the activity in an acid region, especially in the region of pH2 to 5. By such treatment, the carbamide can be completely decomposed and removed from the alcoholic liquors in a much smaller amount of urease and in a short time as compared with a conventional treatment according to a urease having the optimal pH in the neutral to alkaline region. This method is more advantageous from the viewpoint of practical use and the quality of the thus obtained alcoholic liquors are superior to that obtained by the conventional treatment.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: July 4, 1989
    Assignees: Takeda Chemical Industries, Gekkeikan Sake Company, Ltd.
    Inventors: Shigeya Kakimoto, Yasuhiro Sumino, Hideaki Yamada, Satoshi Imayasu, Eiji Ichikawa, Tetsuyoshi Suizu