Patents by Inventor Kikuo Tanida

Kikuo Tanida 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).

  • Audio circuit
    Patent number: 5243656
    Abstract: In a multi-channel audio circuit, a plurality of input signals are supplied to corresponding amplifiers each respectively connected to speakers, at least one of the input signals being inverted. The speaker connected to the amplifier receiving the inverted signal is connected at a polarity opposite that of the other speakers.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: September 7, 1993
    Assignee: Sony Corporation
    Inventors: Kikuo Tanida, Isao Kunimoto, Kazumi Shoji