Patents by Inventor Xiu-Sheng Yang

Xiu-Sheng Yang 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).

  • Zirconia sol and method for preparing the same
    Patent number: 7393518
    Abstract: A zirconia sol having zirconia crystals with an average primary particle size less than 20 nm is provided, wherein more than 90% of the zirconia crystals exist in the form of tetragonal and cubic crystal lattice structures. The zirconia sol has a transmittance more than 70% when the amount of the zirconia crystals in the zirconia sol is about 20 wt %.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: July 1, 2008
    Assignee: National Central University
    Inventors: Anthony S. T. Chiang, Xiu-Sheng Yang, Chien-Wei Chen
  • [ZIRCONIA SOL AND METHOD FOR PREPARING THE SAME]
    Publication number: 20040192790
    Abstract: A zirconia sol having zirconia crystals with an average primary particle size less than 20 nm is provided, wherein more than 90% of thezirconia crystals exist in the form of tetragonal and cubic crystal lattice structures. The zirconia sol has a transmittance more than 70% when the amount of the zirconia crystals in the zirconia sol is about 20 wt %.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 30, 2004
    Inventors: ANTHONY S.T. CHIANG, XIU-SHENG YANG, CHIEN-WEI CHEN