Patents by Inventor Hiroaki Yasuhara

Hiroaki Yasuhara 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).

  • External skin treatment composition
    Patent number: 6419962
    Abstract: An external skin treatment composition is described that comprises a “unicellularized” plant. This composition exhibits superior stability of the effective plant ingredients, superior moisture retention, and superior elimination of specific free radicals, and it offers sustained release of the effective plant ingredients. Methods are disclosed to unicellularize plants with, for example, an enzyme.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: July 16, 2002
    Assignee: Shiseido Company, Ltd.
    Inventors: Mineyuki Yokoyama, Hiroyuki Tsukada, Tetsuya Sakai, Shoko Yamaguchi, Yumiko Suzuki, Yasukazu Nakayama, Hiroaki Yasuhara, Okihiko Sakamoto
  • Hair cosmetic composition
    Patent number: 5286476
    Abstract: A hair cosmetic composition contains one or more high molecular weight silicone compounds having the formula (I): ##STR1## wherein R.sub.1 represents a methyl group or a part thereof represents a phenyl group, R.sub.2 represents a methyl or hydroxy group, and n represents an integer of 3,000 to 20,000.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: February 15, 1994
    Assignee: Shiseido Company Ltd.
    Inventors: Tomiyuki Nanba, Kenji Torii, Hiroaki Yasuhara, Kenichi Tomita, Yoko Fukuchi