Patents by Inventor Takeoshi Katoh

Takeoshi Katoh 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).

  • Motor-driven compressor provided with torque control device
    Patent number: 4726738
    Abstract: A motor-driven compressor used as a compressor or high-pressure gas generator for a refrigerating cycle, in which the output torque of the electric motor for driving the compressor is controlled so as to make the output torque agree with the load torque required for performing compression in any revolutional angular position of the driving main shaft to thereby reduce revolutional torsional vibrations caused by disagreement between the load torque and the output torque.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: February 23, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Yozo Nakamura, Naoyuki Tanaka, Shigeru Machida, Akira Arai, Yoshihisa Uneyama, Kazuo Ikeda, Akihiko Ishiyama, Takeoshi Katoh, Tunehiro Endo, Hiroaki Hata