Patents by Inventor Masayuki Kyogoku

Masayuki Kyogoku 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).

  • Silicone-containing aqueous coating composition and method of producing same
    Patent number: 6329461
    Abstract: A method of producing silicone-containing aqueous coating compositions excellent in shelf stability of the emulsion and in weather resistance, stain resistance, water resistance and solvent resistance of coatings derived therefrom is provided. The method comprises subjecting an aqueous emulsion prepared in advance by emulsification in an aqueous medium containing a polyalkoxypolysiloxane (A), an unsaturated monomer (B) and an emulsifier (C) so as to attain an oil droplet diameter not more than 1,000 nm to polymerization in the presence of a polymerization initiator (D).
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: December 11, 2001
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Mamoru Akiyama, Teruhiko Ogawa, Akio Kitagawa, Masayuki Kyogoku