Patents by Inventor Morishige Hieda

Morishige Hieda 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).

  • Phase shifter and multibit phase shifter
    Publication number: 20030020563
    Abstract: A miniaturized phase shifter and a multi-bit phase shifter are provided, in which filters are constructed using capacitors at FET pinch-off and pass phase can be shifted by turning the FET on and off, the phase shifter including: a first FET having a drain electrode connected to an input terminal and a source electrode connected to an output terminal; a second FET, in which one of a drain electrode and a source electrode thereof is connected to the source electrode of the first FET and the other is connected to ground via a first inductor; and a third FET, in which one of a drain electrode and a source electrode thereof is connected to the drain electrode of the first FET and the other is connected to ground via a second inductor.
    Type: Application
    Filed: August 27, 2002
    Publication date: January 30, 2003
    Inventors: Morishige Hieda, Kenichi Miyaguchi, Kazutomi Mori, Michiaki Kasahara, Tadashi Takagi, Hiroshi Ikematsu, Norio Takeuchi, Hiromasa Nakaguro, Kazuyoshi Inami