Patents by Inventor Masahiko Ooyama

Masahiko Ooyama 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).

  • Thermal adhesive vibration damping sheets
    Patent number: 5227234
    Abstract: A thermal adhesive vibration damping sheet comprising a sheet substrate having crystalline polyolefin particles attached to a surface thereof, said polyolefin particles having a mean particle size of 1 to 20 .mu.m and exhibiting an endothermic curve having a high temperature side endothermic peak in the range of from 50.degree. to 230.degree. C. as measured by a differential scanning calorimeter. The sheet has improved blocking resistance, adhesion to sheet steel through heat fusion, and impact resistance at low temperatures.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: July 13, 1993
    Assignees: Mitsui Petrochemical Industries, Ltd., NEC Environment Engineering, Ltd.
    Inventors: Kakutaro Kauchi, Youhei Suzuki, Yasumasa Fujii, Kenji Yokoyama, Yoshio Iida, Masahiko Ooyama