Patents by Inventor Hiroyoshi Kamio

Hiroyoshi Kamio 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).

  • Accelerated hardening of unsaturated polyester resins
    Patent number: 4348498
    Abstract: Hardening of an unsaturated polyester resin is accelerated by use of (a) a zirconium and/or titanium chelate compound and (b) a cobalt and/or manganese compound as a hardening accelerator.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: September 7, 1982
    Assignee: Nippon Mining Company, Limited
    Inventors: Hiroyoshi Kamio, Yukio Ogino, Kouichi Nakamura