Patents by Inventor Man-Kit Leung

Man-Kit Leung 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).

  • Organic electroluminescent material and electroluminescent device by using the same
    Publication number: 20040146742
    Abstract: An organic electroluminescent material of the formula: 1
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventors: Hsiang Lun Hsu, Man-Kit Leung, Shen-Shen Wang
  • Organic light-emitting diode and material applied thereto
    Publication number: 20040124767
    Abstract: An organic light-emitting diode comprises an anode, an organic electroluminescent layer, a metal doped layer, and a cathode, in sequence, on a substrate; wherein the metal doped layer comprises an organic compound represented by the formula (1) doped with a metal.
    Type: Application
    Filed: October 23, 2003
    Publication date: July 1, 2004
    Inventors: Man-Kit Leung, Kuei-Hui Yang, Chi-Chih Liao, Hung-Lin Chen, Yung-Chih Lee, Yi-Meen Chou, Tzu-Chin Tang
  • Photoresist composition with photosensitive base generator
    Patent number: 5545509
    Abstract: The present invention relates to an improved lithographic photoresist composition comprising a photosensitive base generator. The composition is useful in the manufacture of integrated circuits.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: August 13, 1996
    Assignee: International Business Machines Corporation
    Inventors: James F. Cameron, Jean M. J. Frechet, Man-Kit Leung, Claus-Peter Niesert, Scott A MacDonald, Carlton G. Willson