Patents by Inventor Isao Yotsuya

Isao Yotsuya 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).

  • Tape primer composition
    Patent number: 4668576
    Abstract: A tape primer composition that forms a primer coat between a polyethylene film or sheet support and an overlying butyl rubber base adhesive layer is described, said primer composition consisting essentially of a butyl rubber, a polyisocyanate compound, and an organic solvent.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: May 26, 1987
    Assignee: Nitto Electric Industrial Co., Ltd.
    Inventors: Isao Yotsuya, Kenji Suzuki, Kazumasa Asano