Patents by Inventor Kaoru Ishimoto

Kaoru Ishimoto 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).

  • Resonant converter with a resonant circuit employing the leakage inductance and distributed capacitance of a transformer
    Patent number: 5706184
    Abstract: Secondary side leakage inductance and distributed capacity of a high voltage insulating transformer are constructively employed to function as the resonance coil and resonance condenser of a resonance converter. Increased efficiency is achieved by using a smoothing circuit of choke input construction so as not to reduce the impedance on the secondary side of the transformer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 6, 1998
    Assignee: NEC Corporation
    Inventors: Tsuneo Mizuta, Kaoru Ishimoto