Patents by Inventor Shigetaka Tani

Shigetaka Tani 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).

  • Balancing device
    Patent number: 4517853
    Abstract: A balancing device which may be used in an industrial robot includes a feed screw for moving a robot arm in one direction. The arm and its associated mechanisms impart a torque to the screw which is a load on the drive motor. A balancing feed screw is connected to the main screw and, under the influence of a controlled pressure fluid driven piston, serves to balance the load.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: May 21, 1985
    Assignee: Toyama Machine Works, Limited
    Inventors: Shigetaka Tani, Toshio Nagahara