Patents by Inventor Dong-wan Ryu

Dong-wan Ryu 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).

  • COMPOUND FOR ORGANIC PHOTOELECTRIC DEVICE AND ORGANIC PHOTOELECTRIC DEVICE INCLUDING THE SAME
    Publication number: 20130087776
    Abstract: A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula 1:
    Type: Application
    Filed: December 3, 2012
    Publication date: April 11, 2013
    Inventors: Kyoung-Mi LEE, Dal-Ho HUH, Dong-Wan RYU, Sung-Hyun JUNG, Mi-Young CHAE
  • COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY DEVICE INCLUDING THE ORGANIC LIGHT EMITTING DIODE
    Publication number: 20120112174
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device, the compound including moieties represented by the following Chemical Formula 1; Chemical Formula 4; and one of Chemical Formulae 2 and 3;
    Type: Application
    Filed: November 3, 2011
    Publication date: May 10, 2012
    Inventors: Kyoung-Mi LEE, Sung-Hyun Jung, Dong-Wan Ryu, Seung-Min Lee, Hyon-Gyu Lee, Mi-Young Chae, Dal-Ho Huh, Jin-Seok Hong
  • COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME, AND DISPLAY DEVICE INCLUDING THE LIGHT EMITTING DIODE
    Publication number: 20120043531
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device including the organic light emitting diode, the compound being represented by the following Chemical Formula 1:
    Type: Application
    Filed: August 18, 2011
    Publication date: February 23, 2012
    Inventors: Sung-Hyun JUNG, Dal-Ho HUH, Dong-Wan RYU, Kyoung-Mi LEE, Eui-Su KANG, Mi-Young CHAE
  • 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