Patents by Inventor Shuntaro Murakami

Shuntaro Murakami 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).

  • Sound attenuating system
    Patent number: 5347585
    Abstract: A sound attenuating system for attenuating sound from a sound source. The system comprises a main conduit through which the sound from the sound source propagates; a first device for defining in the conduit at least one passive acoustic reflecting surface; and a second device for defining in the conduit a plurality of active acoustic reflecting surfaces. The active acoustic reflecting surfaces are of a type which permits a partial permeation of sound therethrough.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: September 13, 1994
    Assignees: Calsonic Corporation, Nishiwaki Laboratory
    Inventors: Masao Taki, Takuji Mori, Shuntaro Murakami