Patents by Inventor Kouji Hio

Kouji Hio 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).

  • Electromagnetic damper control device
    Patent number: 7537097
    Abstract: An electromagnetic damper control device including a first member containing a magnet, and a second member containing a solenoid combined to permit relative rotation. The relative rotation of the first and second members induces an electromagnetic force in a solenoid that serves as a damping force to a motion. The device further comprises a current limiter device operated by a voltage generated in the solenoid due to the relative rotation of the first member and second member. The current limiter devices regulates the electrical current flowing in the solenoid to a specific value based on the voltage generated in the solenoid so that by regulating the damping force of the electromagnetic damper a desired damping force can be applied to the electromagnetic damper without requiring external electrical power.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: May 26, 2009
    Assignees: The Foundation for the Promotion of Industrial Science, Kayaba Industry Co., Ltd.
    Inventors: Yoshihiro Suda, Kouji Hio, Takuhiro Kondo, Hideki Yamagata
  • Electromagnetic damper control device
    Publication number: 20070170024
    Abstract: An electromagnetic damper control device including a first member containing a magnet, and a second member containing a solenoid combined to permit relative rotation. The relative rotation of the first and second members induces an electromagnetic force in a solenoid that serves as a damping force to a motion. The device further comprises a current limiter device operated by a voltage generated in the solenoid due to the relative rotation of the first member and second member. The current limiter devices regulates the electrical current flowing in the solenoid to a specific value based on the voltage generated in the solenoid so that by regulating the damping force of the electromagnetic damper a desired damping force can be applied to the electromagnetic damper without requiring external electrical power.
    Type: Application
    Filed: July 31, 2003
    Publication date: July 26, 2007
    Inventors: Yoshihiro Suda, Kouji Hio, Takuhiro Kondo, Hideki Yamagata