Patents by Inventor Shizuka Kasahara

Shizuka Kasahara 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 measuring peroxidic substances
    Patent number: 4295853
    Abstract: Peroxidic substances in a sample, e.g. one or more peroxidic substances in fats and oils or in an organic material, lipoperoxides in a living sample, etc. can be determined, directly in a sample or after extracting the lipoperoxides from a living sample with a solvent, by contacting the peroxidic substances with an oxidizable color reagent in the presence of a metallic compound produced from a metal which is able to have two or more valences to produce color, and measuring degree of coloring colorimetrically.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: October 20, 1981
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Shizuka Kasahara, Kazuhiko Yamanishi, Toshiro Hanada, Kuniaki Tokuda, Shinzo Kobatake