Patents by Inventor Kouichi Yuasa

Kouichi Yuasa 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).

  • Curable resin composition for coating use
    Patent number: 5739230
    Abstract: A curable resin composition curable through a Michael reaction between (a) a component having a plurality of .alpha., .beta.-unsaturated carbonyl groups and (b) a component having a plurality of activated methylene or activated methyne groups is disclosed. The curing reaction is catalyzed with a quaternary ammonium, quaternary phosphonium or tertiary sulfonium salt in the presence of finely divided, water-insoluble, inorganic particles having a surface basicity of greater than 1.0 .mu.mol/g which also do not have catalytic activity on the Michael reaction.
    Type: Grant
    Filed: April 11, 1996
    Date of Patent: April 14, 1998
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Kouichi Yuasa, Koichi Fukuden, Haruhiko Sawada, Kei Aoki