Patents by Inventor Takashi Tsumura

Takashi Tsumura 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).

  • Robot machines
    Patent number: 4505636
    Abstract: In a robot machine, a hand is rotatably mounted on one end of an arm. The hand is provided with two sets of grasping units each including a pair of opposed fingers which are used to grasp or release an article, for example, a workpiece to be machined by a machine tool. A piston-cylinder assembly is provided for rotating the hand through a ninety degree angle.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: March 19, 1985
    Assignee: Yamatake Honeywell Co., Ltd.
    Inventors: Yoshihide Sugino, Takashi Tsumura, Junnosuke Nakamura, Kazuyoshi Yamaki