Patents by Inventor Yoshide Fukahori

Yoshide Fukahori 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).

  • Anti-seismic rubber
    Patent number: 4950528
    Abstract: An anti-seismic rubber is made by laminating a plurality of rigid plates and flexible plates having viscoelastic properties alternatively. At least one of the flexible plates A has elasticity, i.e. magnitude of the stress corresponding to an arbitrary strain in a stress-strain curve, lower than the elasticity of other flexible plates B in a low strain zone, and in a high strain zone, elasticity of the flexible plate A is higher than the elasticity of the flexible plate B.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: August 21, 1990
    Assignees: Bridgestone Corporation, Kajima Corporation
    Inventors: Masao Iizuka, Atsuhiko Yasaka, Yoshide Fukahori, Toshikazu Yoshizawa