Patents by Inventor Shouhei Nakai

Shouhei Nakai 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).

  • Plowing depth detecting system for rotary plow
    Patent number: 4775940
    Abstract: There is disclosed a plowing depth detecting system for a rotary plow adapted to detect an actual plowing depth on the basis of distance data with respect to the ground received from a distance sensor attached to the rotary plow which is vertically movably connected to a vehicle through a link mechanism. The distance sensor provides a microprocessor with distance data with respect to the ground rearwardly of the rotary plow. The microprocessor determines a value of actual plowing depth of the rotary plow on the basis of this distance data and a correction value according to a working condition of the rotary plow.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: October 4, 1988
    Assignee: Kubota, Ltd.
    Inventors: Tetsuya Nishida, Toshiya Fukumoto, Shigekazu Hasegawa, Shouhei Nakai