Patents by Inventor Yoshisuke Yamashita

Yoshisuke Yamashita 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).

  • Rodless cylinder with a speed control mechanism
    Patent number: 5429035
    Abstract: A rodless cylinder with a speed control mechanism comprising a cylinder tube, a hollow cushion ring located at an end of the cylinder tube and adapted to be inserted in a hollow portion of a piston, and a sine function groove formed in the outer surface of the cushion ring, wherein the axial position of said cushion ring is capable of being regulated from the outside of the rodless cylinder, so that the time and magnitude of acceleration and deceleration of the piston can be regulated, as desired.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: July 4, 1995
    Assignee: SMC Corporation
    Inventors: Kunihisa Kaneko, Yoshisuke Yamashita, Masaharu Kobayashi
  • Pneumatic cylinder with cushion mechanism
    Patent number: 5423243
    Abstract: A relief valve 23 serving as cushion pressure adjusting means in a cushion mechanism is provided on a support member 4, and the support member 4 is rotatably mounted on covers 2 and 3 of a pneumatic cylinder in order to facilitate adjustment of relief pressure.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: June 13, 1995
    Assignee: SMC Corporation
    Inventors: Yoshisuke Yamashita, Kunihisa Kaneko, Nobuhiro Fujiwara