Patents Assigned to Kose Corp.
  • 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