Patents by Inventor Toshitsugu Tajima

Toshitsugu Tajima 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).

  • Negative feedback power supply apparatus
    Patent number: 5122725
    Abstract: In a power supply apparatus for a load such a toroidal core testing apparatus, an input current is supplied to the load, and an output voltage of the load is obtained. A current corresponding to one part of the output voltage is negatively fed back to the input current.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: June 16, 1992
    Assignee: Kitamura Kiden Co., Ltd.
    Inventors: Fumio Kitamura, Toshitsugu Tajima
  • Negative feedback power supply apparatus
    Patent number: 4866366
    Abstract: In a power supply apparatus for a load such a toroidal core testing apparatus, an input current is supplied to the load, and an output voltage of the load is obtained. A current corresponding to one part of the output voltage is negatively fed back to the input current.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: September 12, 1989
    Assignee: Kitamura Kiden., Ltd
    Inventors: Fumio Kitamura, Toshitsugu Tajima