Patents by Inventor Takasi Ichinose

Takasi Ichinose 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).

  • DC power supply circuit arrangement
    Patent number: 5115389
    Abstract: A DC power supply circuit arrangement for supplying DC power from a power source through a common conductor to a load, comprises a plurality of switches connected between the power source and the common conductor and/or between the common conductor and the load, each of the switches having one terminal connected to the power or the load and the other terminal connected to the common conductor, an energy absorber having two terminals, a first diode connected between the one terminal of each of the plurality of switches and one of the two terminals of the energy absorber in a polarity so as to allow a current to flow from the one terminal of the switch to the one terminal of the energy absorber, a second diode connected between the one terminal of each of the plurality of switches and the other terminal of the energy absorber in a polarity so as to allow a current to flow from the other terminal of the energy absorber to the one terminal of the switch, and a circuit connecting the other terminal of the energy a
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: May 19, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Shigetoshi Ouchi, Tatsuji Shirouzu, Shinichi Ode, Takasi Ichinose, Tutomu Kanno