Patents by Inventor Kazuyuki Kudou

Kazuyuki Kudou 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).

  • Power supply circuit
    Patent number: 6005785
    Abstract: A power supply circuit has: a power supply filter including a coil which is inserted in series into an input line; a DC--DC converter which is connected to an output of the power supply filter and which converts an input voltage into an arbitrary output voltage; a detecting section which detects a potential difference between ends of the coil; and a control section which controls the output voltage of the DC--DC converter based on the detected potential difference.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: December 21, 1999
    Assignee: Pioneer Electronic Corporation
    Inventors: Kazuyuki Kudou, Tatsuzou Hasegawa, Haruyuki Inohana