Patents by Inventor Yun-Chen Wu

Yun-Chen Wu 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).

  • Red and Green Fluorosulfide Phosphor, Preparation Method and White-Light Emitting Diodes
    Publication number: 20110198651
    Abstract: Novel red and green fluorosulfide phosphors have a chemical formula of (A1-x-yCexBy)SF, wherein A and B are both trivalent metal ions, 0<x?0.1, and 0?y?1. A is a rare earth metal, B is a rare earth metal or a group 13 metal. A preparation method of the fluorosulfide and white-light emitting diode application thereof are also disclosed.
    Type: Application
    Filed: April 20, 2011
    Publication date: August 18, 2011
    Applicant: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Teng-Ming Chen, Yun-Chen Wu
  • Carbonitride Phosphor, Preparation Method and Light Emitting Device Thereof
    Publication number: 20110084598
    Abstract: A carbonitride phosphor is provided, which is represented by a general chemical formula of (M1-x-yNxCey)2(CN2)3, in which 0.005?x?0.20, 0.005?y?0.15, and M and N are respectively selected from a group consisting of yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and cassiopeium.
    Type: Application
    Filed: January 20, 2010
    Publication date: April 14, 2011
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Teng-Ming Chen, Yun-Chen Wu, Chuang-Hung Chiu, Huai-An Li, Chi-Neng Mo