Patents by Inventor Haruo Yokouchi

Haruo Yokouchi 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).

  • Microwave signal amplifier
    Patent number: 4107621
    Abstract: A microwave signal amplifier comprising transistor having input and output terminals further includes input and output matching circuits connected to the input and output terminals, respectively, and corresponding bias supply circuits connected in parallel between said transistor and said input and output matching circuits, respectively. The input and output matching circuits are each implemented by high pass filters, and the bias supply circuits are each implemented by low pass filters. Furthermore, said high pass and low pass filters respectively have capacitors and inductors connected to the transistor, and said low pass filters have termination resistors.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: August 15, 1978
    Assignee: Fujitsu Limited
    Inventors: Nagahisa Furutani, Kazuo Takahara, Yoshikazu Doi, Haruo Yokouchi