Patents by Inventor Eiji Nishizawa

Eiji Nishizawa 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).

  • Antenna equipment of UHF tuner
    Patent number: 4339756
    Abstract: An antenna equipment of a UHF tuner characterized in that a supporting portion of an insulator to which antenna pins are fastened is mounted on a tuner chassis, and that an antenna coil connected to the antenna pins is located inside the tuner chassis, whereas a resistor connected to the antenna pin and the tuner chassis is disposed outside the tuner chassis.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: July 13, 1982
    Assignee: Alps Electric Co. Ltd.
    Inventors: Kohei Oyama, Eiji Nishizawa
  • UHF-VHF tuner having damping means to reduce interference in UHF band
    Patent number: 4291290
    Abstract: An electronic tuner capable of selectively receiving the UHF band and high and low channels in the VHF band is described which has a suitable resistance provided across power supply terminals in order to improve the separation between the VHF mode and the UHF mode.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: September 22, 1981
    Assignee: Alps Electric Company, Ltd.
    Inventors: Sadayoshi Ijichi, Eiji Nishizawa