Patents by Inventor Hisanaga Miyoshi

Hisanaga Miyoshi 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).

  • Dual band oscillator circuit using strip line resonators
    Patent number: 5852384
    Abstract: A dual band oscillator circuit according to the present invention comprises an oscillator circuit portion that oscillates at a first frequency, an oscillator circuit portion that oscillates at a second frequency, a buffer amplifier circuit portion to which an output of the first oscillator circuit portion is input through a first stage-to-stage coupling element and an output of the second oscillator circuit portion is input through a second stage-to-stage coupling element. Operation is switched between the first and second oscillator circuits by an externally applied control voltage signal.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: December 22, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Makoto Sakakura, Hisanaga Miyoshi, Kouji Hashimoto, Nobuo Fuse, Hiroaki Kosugi, Kaoru Ishida