Patents by Inventor Hisayuki Masui

Hisayuki Masui 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).

  • Regenerative control system for motor generator
    Patent number: 4937507
    Abstract: A generator driving apparatus is provided with a thyristor driving device for driving a motor-generator, and the thyristor driving device always controls the driving of the motor-generator regardless of the number of rotations thereof. Also, when the motor-generator is coming to a stop, energy conserved in the motor-generator is regenerated to an electric power system through the thyristor driving device.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: June 26, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hisayuki Masui, Toshiaki Matsuura, Ryuichi Simada, Tatsuya Matsukawa