Patents by Inventor Kazuyuki Kirimura

Kazuyuki Kirimura 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).

  • Microstrip line and microwave device using the same
    Patent number: 6445345
    Abstract: The present invention provides a low cost microstrip line with low loss and a microwave device using the microstrip line. The microstrip line comprises (a) a dielectric substrate for general purpose use with relatively high loss in a microwave frequency, (b) a strip conductor foil disposed on the front surface of the substrate, (c) a metal plate for grounding disposed in contact with the back of the dielectric substrate, and (d) an air layer formed on a portion of the metal plate for grounding, the portion facing to the strip conductor foil.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: September 3, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryuichi Kamimoto, Hirokazu Kitamura, Kazuyuki Kirimura, Yasuhiro Hibino