Patents by Inventor Shigetoshi Ogawa

Shigetoshi Ogawa 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).

  • Patent number: 4323014
    Abstract: The handle of a tie tamper is connected to its vibration generating motor, which vibrates a beater fixed thereto, by a combination of a Neidhart damper secured to one end of the handle, a shackle-like link pair fixed at its one end to the damper, and an arcuate leaf spring pin-connected at its one end to the other end of the link pair and at its other end to the motor and by a two-bar linkage connected at its two ends via Neidhart dampers respectively to an intermediate part of the handle and to the motor, a balance weight being provided at the pin joint between the two links of the two-bar linkage, and a strap connected at its ends to the handle and motor limits the extension of the two-bar linkage.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: April 6, 1982
    Assignees: Nippon Kokuyu Tetsudo, Kabushiki Kaisha Shibaura Seisakusho
    Inventors: Kazuhide Yamazaki, Shigetoshi Ogawa, Atsushi Suma, Maki Nakajima