Patents by Inventor Yoko Takeshita

Yoko Takeshita 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).

  • Mixing-at the time of use-type hair-treating composition
    Patent number: 5785961
    Abstract: A hair-treating composition having convenient usability and excellent dyeability or hair-bleachability is provided. The composition having the above excellent properties contains at least one member selected from amphoteric surface active agents or semipolar surface active agents according to circumstances, and cationic polymers, in combination with an anionic surface active agent and a higher fatty acid, and further contains a dye or an alkalinizing agent.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: July 28, 1998
    Assignee: Shiseido Company, Ltd.
    Inventors: Yasunari Nakama, Yoko Takeshita, Yasuhiro Arai, Michihiro Yamaguchi, Masa'aki Yasuda