Patents by Inventor Wei-Shung Huang

Wei-Shung Huang 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).

  • Piezoelectric filter with a curved electrode
    Patent number: 5578974
    Abstract: A piezoelectric resonator (10) with an attenuated spurious response. The resonator (10) includes a piezoelectric crystal plate (12) having opposite surfaces (14, 16), electrodes (18, 24) positioned in overlying relationship on each of the opposite surfaces (14, 16), the electrodes (18, 24) being substantially coextensive and opposite, and providing a primary frequency mode of operation and spurious modes upon suitable energization, and one of the electrodes (18, 24) having a curved extension (23) for reducing spurious modes.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 26, 1996
    Assignee: Motorola, Inc.
    Inventors: Tsung-Fu Yang, Wei-Shung Huang