Patents by Inventor Yukiyo Matsuzawa

Yukiyo Matsuzawa 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).

  • Hair care products
    Patent number: 5811086
    Abstract: A hair care product which exhibits an excellent setting power, an excellent use feeling, and improved solubility comprising the following ingredients (A), (B) and (C),(A) a polyacidic amino acid or its salt,(B) cationic cellulose, and(C) an ampholytic surfactant.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 22, 1998
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yukiyo Matsuzawa, Tatsuya Hattori