Patents by Inventor Hiroko Ohbayashi

Hiroko Ohbayashi 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).

  • Materials in the form of colored spherical fine particles
    Patent number: 5520917
    Abstract: A colored particulate material in the form of almost perfectly spherical fine particles comprising an organic and/or inorganic pigment coated with a hydrated metal compound over the surface thereof, the coated pigment being enclosed with an inorganic porous wall substance, process for producing the same, and a cosmetic composition comprising the same.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: May 28, 1996
    Assignees: Suzuki Yushi Industries Co., Ltd., Kose Corp.
    Inventors: Masaaki Mizuguchi, Hiroko Ohbayashi, Akira Matsueda, Tsuyoshi Ogihara