Patents by Inventor Min-Hui Chou

Min-Hui Chou 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-absorbing material
    Patent number: 9514732
    Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/?10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: December 6, 2016
    Assignee: National Taiwan University of Science and Technology
    Inventors: Chang-Mou Wu, Min-Hui Chou, Jiunn-Yih Lee
  • Sound-Absorbing Material
    Publication number: 20160267897
    Abstract: A sound-absorbing material has a membrane having multiple piezoelectric fibers, the fiber density of the membrane is below 50 g/m2, the thickness of the membrane is below 1 mm, sound-absorbing coefficient of the membrane is larger than 0.1 at absorbing frequency at 100 Hz+/-10%, and the sound-absorbing coefficient of the membrane is over 0.05 at absorbing frequency at 800 Hz to 1000 Hz. PVDF electrospinning nanofiber membranes of the present invention are thinner and more flexible compared to conventional sound-absorbing material, the membranes in the present invention performs excellent low frequency sound absorption with very thin membrane.
    Type: Application
    Filed: January 28, 2016
    Publication date: September 15, 2016
    Inventors: Chang-Mou Wu, Min-Hui Chou, Jiunn-Yih Lee