Patents by Inventor Tutomu Saitoh

Tutomu Saitoh 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).

  • Cosmetics and process for preparation thereof
    Patent number: 4128630
    Abstract: A cosmetic obtained by treating an inorganic pigment powder with a metal ion blocking agent, drying the product, and mixing a perfume with the resulting pigment. The perfume in the resulting cosmetic is very stable for long periods of time.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: December 5, 1978
    Assignee: Shiseido Co., Ltd.
    Inventors: Katsutake Hayashi, Tutomu Saitoh, Katsuyuki Yomogida, Hiromasa Saito