Patents by Inventor Kenichi Kobayyashi

Kenichi Kobayyashi 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).

  • Colorant for thermoplastic resin and uses thereof
    Publication number: 20070078201
    Abstract: It is an object of the present invention to provide a thermoplastic resin coloring agent having excellent dispersibility, transparency, ultraviolet blocking properties, etc., and a thermoplastic resin composition employing same, and it is another object of the present invention to provide a thermoplastic resin molding having excellent dispersibility, transparency, ultraviolet blocking properties, stretchability, and surface smoothness. The present invention relates to a thermoplastic resin coloring agent containing a surface-treated ?-ferric oxide (A) formed by coating a non-acicular ?-ferric oxide having an average particle size of 0.01 to 0.06 ?m and an aspect ratio of 0.2 to 1.0 with a polyhydric alcohol and an organopolysiloxane, and an oxycarboxylic acid metal salt (B1) as a dispersing agent (B) and, moreover, to the thermoplastic resin coloring agent further containing a methine-based dye (C).
    Type: Application
    Filed: September 13, 2004
    Publication date: April 5, 2007
    Applicant: Toyo Ink Mfg. Co., Ltd.
    Inventors: Seiji Sawada, Kenichi Kobayyashi, Junichi Suzuki, Masashi Koide