Patents by Inventor Syouichi Noguchi

Syouichi Noguchi 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 for a magnetron
    Patent number: 4903183
    Abstract: In a magnetron power supply for obtaining a high voltage for an anode by an inverter circuit, there is disclosed the improvement including a detector for detecting an AC output current of a secondary-side high voltage winding of a transformer instead of detecting an anode current (after being rectified) for the magnetron to control a magnetron output to a desired value. In this constitution, a current value is detected by clipping a positive or negative side of an output of the detector.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: February 20, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Syouichi Noguchi, Kunio Ishiyama, Teruaki Odaka