Patents by Inventor Luis Liu

Luis Liu 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).

  • Contact type indirect conduction, vibrating type microphone
    Patent number: 5359157
    Abstract: A contact type indirect conduction, vibrating type microphone comprised of a body having a vibration damper on the inside, a fastening device connected to the body for fastening around the neck or the head, the vibration damper having a top recess, a peripheral flange, and a plurality of projecting rods raised from a bottom thereof, a capacitive microphone disposed within the top recess of the vibration damper, a sponge covered on the vibration damper over, and a top cover with a diaphragm covered over the sponge and adhered thereto by a double-sided adhesive tape.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: October 25, 1994
    Assignee: Jen-Cheng Peng
    Inventor: Luis Liu