Patents by Inventor Tsutomo Hayashi

Tsutomo Hayashi 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).

  • Nonstep hydrostatic transmission
    Patent number: 5353595
    Abstract: A clutch valve is constituted with a valve cylinder fitted in and fixed to the center of a cylinder block in a manner to form with the cylinder a third ring-shaped oil passage and a second ring-shaped oil passage to communicate with a first ring-shaped oil passage and a valve body slidably fitted in the valve cylinder in a switchable manner to communicate between the third and second ring-shaped oil passages and/or shut them off from each other.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: October 11, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tsutomo Hayashi, Mitsuru Saito, Yoshihiro Nakajima