Patents by Inventor Hidehiro Moroi

Hidehiro Moroi 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 circuit for motor
    Patent number: 5510684
    Abstract: A drive control circuit includes a first and a second relays, each of which selectively connects one of the terminals of a motor with a power supply. A power connecting circuit can connect the power supply with each one of the relays. A control circuit controls the power connecting circuit to disconnect the power supply from the first and second relays, and then controls to switch the connecting arrangements between the power supply and each terminal of the motor utilizing the first and second relays. Therefore, the rotational direction of the motor is switched, or the rotation of the motor is stopped.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 23, 1996
    Assignee: Asmo Co., Ltd.
    Inventors: Hidehiro Moroi, Kazutomo Kakegawa