Patents by Inventor Shinichi Tokuyama

Shinichi Tokuyama 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).

  • Desiccating agent
    Patent number: 4615823
    Abstract: A desiccating agent comprising a mixture of(A) a deliquescent salt(B) a hydrolyzed copolymer of 50 to 99.8% by mole of vinyl acetate and 50 to 0.2% by mole of an unsaturated dicarboxylic acid in which a degree of hydrolysis of the vinyl acetate component is not less than 70% by mole, and(C) a short cut fibrous materialas main components. The desiccating agent can be reused at least 10 times and has a high hygroscopic power and capacity.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: October 7, 1986
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shinichi Tokuyama, Masaharu Hongo, Hirokazu Iino