Patents by Inventor Zheng-Tao Yan

Zheng-Tao Yan 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).

  • Color filter disc and process of making the same
    Patent number: 7190536
    Abstract: A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular surface. Each of the colored segments is provided by partially masking the annular surface to expose a part of the annular surface and by directly depositing a coloring film on the exposed part of the annular surface.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: March 13, 2007
    Assignee: Asia Optical Co., Inc.
    Inventors: Zhou Jiang, Yu-Ting Jiang, Cai-Jin Mao, Zheng-Tao Yan
  • Color filter disc and process of making the same
    Publication number: 20040145823
    Abstract: A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular surface. Each of the colored segments is provided by partially masking the annular surface to expose a part of the annular surface and by directly depositing a coloring film on the exposed part of the annular surface.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 29, 2004
    Applicant: ASIA OPTICAL CO., INC.
    Inventors: Zhou Jiang, Yu-Ting Jiang, Cai-Jin Mao, Zheng-Tao Yan