Patents by Inventor Shoji Kamii

Shoji Kamii 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).

  • Flat panel speaker system with a coated diaphragm
    Patent number: 7460679
    Abstract: A speaker system having a structure in which the room surrounding the first diaphragm and the room adjacent to the second diaphragm are acoustically coupled. The second diaphragm has coating on a surface. Applying the coating to the second diaphragm enhances the reliability and performance of the speaker system. Besides, the diversely definable geometry of the diaphragm allows an electronic device employing the speaker system or the speaker module to have flexibility in design.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: December 2, 2008
    Assignee: Panasonic Corporation
    Inventors: Satoshi Itoh, Tetsuya Mouri, Masahide Sumiyama, Shoji Kamii