Patents by Inventor Wang Ju-Zhen

Wang Ju-Zhen 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).

  • Backing material for the ultrasonic transducer
    Patent number: 4800316
    Abstract: The invention is a backing material for an ultrasonic transducer. The backing material comprises a composite of tungsten powder, cerium oxide powder in an amount of 1.0 to 4.5% by weight tungsten, and an epoxy in a weight proportion to powder of from 4:1 to 50:1.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: January 24, 1989
    Assignee: Shanghai Lamp Factory
    Inventor: Wang Ju-Zhen