Patents by Inventor Kouichi Mizuta

Kouichi Mizuta 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-DC converter and a computer using the converter
    Patent number: 5088017
    Abstract: In order to provide miniaturization and increased-frequency operation of a DC-DC converter used with a computer, etc., a capacitor is connected in parallel with a switching element when the switching element is turned off to reduce turn-off loss. When the switching element is turned on, the capacitor and a DC power source are connected in series to supply the energy stored in the capacitor to a load circuit to result in a high initial voltage being applied across the load circuit.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: February 11, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Takao Yaginuma, Kenichi Onda, Yasuo Matsuda, Kouichi Mizuta