Patents by Inventor Kyu-man Youn

Kyu-man Youn 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).

  • Deuterated aryl amine compound, preparation method thereof, and organic light emitting diode using the same
    Patent number: 8026665
    Abstract: Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: September 27, 2011
    Assignee: Doosan Corporation
    Inventors: Kyoung-soo Kim, Tae-hyung Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim
  • Novel Deuterated Aryl Amine Compound, Preparation Method Thereof, and Organic Light Emitting Diode Using The Same
    Publication number: 20080191614
    Abstract: Disclosed are a novel deuterated aryl amine compound capable of enhancing thermal stability, hole transporting capability, luminescence efficiency, etc. of an organic light emitting diode at the time of being used as a hole-injecting layer, a preparation method thereof, and an organic light emitting diode using the same.
    Type: Application
    Filed: November 18, 2005
    Publication date: August 14, 2008
    Applicant: Doosan Corporation
    Inventors: Kyoung-soo Kim, Tae-hyung Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim
  • Novel Iridium Complex and Organic Electroluminescence Device Using the Same
    Publication number: 20080194853
    Abstract: Disclosed are a deuterated novel iridium complex phosphorescent material used as a light-emitting layer material of an organic electroluminescence device, a preparation method thereof and an organic electroluminescence device using the same. Compared with an organic electroluminescence device using the prior art light-emitting layer with no deuterium substitution, the organic electroluminescence device using the deuterated material of the present invention has improved luminescence efficiency, luminance, power efficiency, thermal stability and the like.
    Type: Application
    Filed: November 18, 2005
    Publication date: August 14, 2008
    Applicant: DOOSAN cORPORATION
    Inventors: Tae-hyung Kim, Kyoung-soo Kim, Kyu-man Youn, Hyeon-jin Seo, Myung-soo Ko, Sang-hoon Lee, Dong-wan Ryu, Yeong-eun Kim