Patents by Inventor Syuzoh Kaneko

Syuzoh Kaneko 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).

  • Capacitive load driving apparatus
    Patent number: 4967100
    Abstract: A capacitive load driving apparatus which has a plurality of first switching elements connected between a plurality of parallel loads and a first power source terminal for switching currents which charge the loads. There is furthermore provided a plurality of bipolar transistors connected between connecting points (of the first switching elements and the loads) and a second power source terminal for discharging charges stored in the loads and a plurality of second switching elements connected between a third power source terminal and bases of the bipolar transistor, respectively, for switching base currents supplied from the third power source terminal to the bipolar transistors.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: October 30, 1990
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Mitsuhiko Okutsu, Tadaaki Kariya, Kouji Kawamoto, Syuzoh Kaneko, Yasuhiro Mashiko