Patents by Inventor Ryuji Teramoto

Ryuji Teramoto 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).

  • Flat circular unidirectional microwave antenna
    Patent number: 4819003
    Abstract: The present invention relates to telecommunication technology and broadcasting antenna technology. The power-feeding portion and the wave-guiding space, and the power-feeding wave-guiding space and the power-radiating wave-guiding space are matched for the effective radiation of the fed power. A conical matching body is disposed within the wave-guiding space with the apex thereof directed toward a power-feeding opening; the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space is formed in a sectional shape of a semicircle, a hemihedral polygon or a desired curvilinear shape; the power-feeding wave-guiding space the power-radiating wave-guiding space are matched in impedance; or a matching body is provided at the junction of the power-feeding wave-guiding space and the power-radiating wave-guiding space.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: April 4, 1989
    Inventors: Naohisa Goto, Yoshiharu Ito, Kunitaka Arimura, Makoto Ando, Tatsuya Shirai, Ryuji Teramoto