Patents by Inventor Tomoko Yasumasu

Tomoko Yasumasu 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).

  • Oral or detergent composition comprising a nonionic surface active agent
    Patent number: 5190747
    Abstract: An oral detergent composition comprising a nonionic surface active agent comprising a fatty acid ester of a hexose sugar or an alkyl glycoside thereof, wherein the content of monoester is from 93 to 99.0% by weight, the content of diester is from 0.1 to 7% by weight and the content of tri- and higher polyesters is from 0 to 1% by weight in the fatty acid ester.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: March 2, 1993
    Assignee: Lion Corporation
    Inventors: Shizuo Sekiguchi, Tomoko Yasumasu, Hiroshi Miyake, Yoshihisa Endo
  • Nonionic surface active agent
    Patent number: 5109127
    Abstract: A nonionic surface active agent comprising a fatty acid ester of a hexose sugar or an alkyl glycoside thereof, wherein the content of monoester is from 93 to 99.9% by weight, the content of diester is from 0.1 to 7% by weight and the content of tri- and higher polyesters is from 0 to 1% by weight in the fatty acid ester.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: April 28, 1992
    Assignee: Lion Corporation
    Inventors: Shizuo Sekiguchi, Tomoko Yasumasu, Hiroshi Miyake, Yoshihisa Endo