Patents by Inventor Kohei Oyama

Kohei Oyama 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).

  • Printed circuit board
    Patent number: 4417297
    Abstract: In a printed circuit board wherein chip components are mounted in aligned holes provided through two printed substrates stacked over one another, spacer members are interposed between the printed substrates so as to define spaces therebetween around the holes. Since the printed substrates and chip components are movable relative one another due to such spaces, thermal stresses in the joints between the chip components and the printed substrates can be relieved.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: November 22, 1983
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kohei Oyama, Hiroyuki Yokouchi
  • 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