Patents by Inventor Akira Yamazaki, deceased

Akira Yamazaki, deceased 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).

  • Coupling device for force transmitting member
    Patent number: 4752151
    Abstract: According to the invention, a coupling device for a force transmitting member is provided. The coupling device contains a plurality of force transmitting members and a joint for coupling each end of the force transmitting members. A hardened body of a cement composition having a compressive modulus of elasticity of not less than 2.0.times.10.sup.5 kg/cm.sup.2 and a compressive strength of not less than 700 kg/cm.sup.2 is being filled at least in-between the force transmitting members and the joint.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: June 21, 1988
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masanobu Ashida, Seiichi Koyama, Kiyoshi Shirakawa, Toshiyuki Tamaki, Akira Yamazaki, deceased