Patents by Inventor Shui-jin Cheng

Shui-jin Cheng 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).

  • Process for producing alumina material for artificial skeleton with high strength
    Patent number: 6123912
    Abstract: A process for producing an alumina material with high strength is disclosed. The process for producing an alumina material includes the steps of (a) providing a solution containing a dispersing agent, (b) mixing a .theta.-alumina powder and an .alpha.-alumina powder with the solution to form a slurry, (c) filtering the slurry to form a green part, (d) drying the green part, and (e) densifying the dried green part to form the alumina material.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 26, 2000
    Assignee: National Science Council
    Inventors: Wen-Cheng J. Wei, Shui-jin Cheng, Chang-Li Hsieh, Hung-Chan Kao