Patents by Inventor Nozomi Hagashima

Nozomi Hagashima 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 dye composition comprising acid dyes
    Patent number: 6096099
    Abstract: Disclosed herein is a hair dye composition comprising (A) benzyloxyethanol and/or benzyl alcohol, (B) propylene carbonate and (C) an acid dye and having a pH of 2.0 to 6.0. The composition has excellent hair-dyeing ability and good fastness to shampoo.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: August 1, 2000
    Assignee: Kao Corporation
    Inventors: Naohiro Kariya, Atsushi Nakashimada, Nozomi Hagashima, Yutaka Shibata, Masahiko Sakai, Hajime Miyabe