Patents by Inventor Goro Sugawara

Goro Sugawara 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).

  • High-frequency signal transmission system with conical conductors and bias resistor
    Patent number: 5608415
    Abstract: A high-frequency signal transmission system for use as a microwave antenna or filter has a plurality of cascaded conical or planar inner conductors each having a unitary exponential gradient, a pair of circular lines or impedance-matching lines having identical dimensions and connected respectively to opposite ends of the conical or planar inner conductor for providing a predetermined characteristic impedance, and a cylindrical or rectangular tubular outer conductor covering the conical or planar inner conductor and the circular or impedance-matching lines with a cavity defined between the conical or planar inner conductor and the cylindrical or rectangular tubular outer conductor.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: March 4, 1997
    Inventor: Goro Sugawara
  • High-frequency signal transmission system
    Patent number: 5508669
    Abstract: A high-frequency signal transmission system for use as a microwave antenna or filter has a plurality of cascaded conical or planar inner conductors each having a unitary exponential gradient, a pair of circular lines or impedance-matching lines having identical dimensions and connected respectively to opposite ends of the conical or planar inner conductor for providing a predetermined characteristic impedance, and a cylindrical or rectangular tubular outer conductor covering the conical or planar inner conductor and the circular or impedance-matching lines with a cavity defined between the conical or planar inner conductor and the cylindrical or rectangular tubular outer conductor.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: April 16, 1996
    Inventor: Goro Sugawara