Patents by Inventor Yasuhiro Kojina

Yasuhiro Kojina 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).

  • Teaching control device for manual operations of two industrial robots
    Patent number: 5596683
    Abstract: The teaching procedure is performed so that a relative position of the tool against a workpiece and an attitude of a tool against a ground are maintained constant under a control of a co-acting mode of the manual operation. The position and the attitude of the workpiece and the position and the attitude of the tool are manipulated in response to a co-acting mode signal supplied by a mode changing switch, a robot signal selecting the workpiece handling robot supplied by a robot changing switch and actuating signals supplied by a group of the keys. The manipulation of the position of the tool by the tool handling robot is coordinated with the manipulation of the position and the attitude of the workpiece by the workpiece handling robot maintaining the attitude of the tool against the ground and the relative position of the tool against the workpiece.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: January 21, 1997
    Assignee: Daihen Corporation
    Inventors: Fumio Kasagami, Yasuhiro Kojina