Patents by Inventor Yusaku Kobata

Yusaku Kobata 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).

  • Cationic electrodeposition coating composition
    Patent number: 5594049
    Abstract: The electrodeposition coating composition contains a base resin and a curing agent. The curing agent comprises a compound containing an aromatic isocyanurate ring and 3 or more blocked isocyanate groups wherein at least one of said blocked isocyanate groups is blocked with glycol ether.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 14, 1997
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Mitsuo Yamada, Yusaku Kobata
  • Curing agent and a cationic electrodeposition coating composition
    Patent number: 5569704
    Abstract: The electrodeposition coating composition contains a base resin and a curing agent. The curing agent contains blocked isocyanate compound A and blocked isocyanate compound B. The difference in the glass transition temperatures of said blocked isocyanate compound A and said blocked isocyanate compound B is at least 25.degree. C., and the glass transition temperature of said blocked isocyanate A is higher than the glass transition temperature of said blocked isocyanate B.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: October 29, 1996
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Mitsuo Yamada, Yusaku Kobata