Patents by Inventor Yoshiyuki Hamahashi

Yoshiyuki Hamahashi 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).

  • Deformable conductive elastomer and manufacturing method thereof
    Patent number: 6558577
    Abstract: A deformable conductive elastomer excellent in reliability, linearity, and mechanical characteristics, and a manufacturing method thereof are provided. Elastomer particles with a particle size of 10 through 300 &mgr;m and conductive particles with a particle size of 10 through 40 &mgr;m are almost uniformly dispersed in a non-conductive elastomer. Ceramic particles with a particle size of 1000 nm or less are also almost uniformly dispersed in the non-conductive elastomer. At least the non-conductive elastomer uncrosslinked, the elastomer particles, and the conductive particles are added to the dispersion medium, and the mixture is vibrated, mixed, and dried to crosslink the uncrosslinked non-conductive elastomer. At least the non-conductive elastomer, the elastomer particles, and the conductive particles are added to the dispersion medium, and the mixture is vibrated, mixed, and dried.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 6, 2003
    Assignees: Inabagomu Co. Ltd.
    Inventors: Koichi Niihara, Yong-Ho Choa, Manwar Hussain, Hiroshi Nishida, Yoshiyuki Hamahashi, Kotaro Kawahara