Patents by Inventor Shi Wei Ricky Lee

Shi Wei Ricky Lee 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).

  • Rotary motor driven by a piezoelectric composite laminate
    Patent number: 5942838
    Abstract: There is described a rotary motor in which a rotor disc is driven by a plate-like driving member comprising a laminate of piezoelectric material sandwiched between outer layers of anisotropic material. When a voltage is applied to the rotor disc the driving member expands into driving contact with the rotor disc and--at the same time--owing to the anisotropy of the outer layers, twists with a torsional movement and this torsional movement imparts a rotary movement to the rotor disc.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: August 24, 1999
    Assignee: The Hong Kong University of Science & Technology
    Inventors: Shi Wei Ricky Lee, Hing Leung Li