Patents by Inventor Shizuo Narita

Shizuo Narita 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).

  • Level meter for sound signals
    Patent number: 3991628
    Abstract: A level meter for sound signals capable of indicating a mean value of the input level by deflection of a pointer while indicating a peak value of the input level when it has exceeded a predetermined value by lighting one of a plurality of light indication elements provided on the scale which corresponds to the predetermined value.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: November 16, 1976
    Assignee: Kabushiki Kaisha Nihon Keiki Seisakusho
    Inventor: Shizuo Narita