Patents by Inventor Wen-Chung C Chu

Wen-Chung C Chu 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).

  • Polyimide resin polymer and alignment film materials containing same for liquid crystal display
    Patent number: 7585551
    Abstract: The invention relates to a polyimide resin polymer which contains at least one repeating unit selected from those of formula (A-1) and formula (A-2) below as polymerization units, wherein P1, P2, Q1, and Q2 are as defined in the specification. The polymer of the invention can be used as an alignment material in liquid crystal displays.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: September 8, 2009
    Assignee: Daxin Materials Corporation
    Inventors: Ming-Ruei Tsai, Wen-Chung C Chu, Chang Chia-Wen, Lai Ming-Chih