Patents by Inventor Hiroyuki Miyamori

Hiroyuki Miyamori 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).

  • Drive control system for servo motor
    Patent number: 5705907
    Abstract: A drive control system for supplying a drive voltage to a DC servo motor. The drive control system includes a position detector for detecting a rotational position of the DC servo motor, and a controller which switches the drive mode of the DC servo motor from DC drive to PWM drive when a detected position value obtained by the position detector is within a predetermined amount of a value corresponding to a target stop position.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: January 6, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hiroyuki Miyamori, Norihiro Oba