Patents by Inventor Tadayoshi Nakatuka

Tadayoshi Nakatuka 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).

  • Switch attenuator
    Patent number: 5777530
    Abstract: The switch attenuator of the invention includes: a first terminal connected to an antenna; a second terminal connected to a transmitter; and a third terminal connected to a receiver, thereby switching a first state and a second state.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: July 7, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Tadayoshi Nakatuka