Patents by Inventor Woon-jung Beek

Woon-jung Beek 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).

  • Blue electroluminescent polymer and organic-electroluminescent device using the same
    Patent number: 6984461
    Abstract: A blue electroluminescent polymer includes a phenoxazine unit in its polyarylene backbone, and a high-luminance, high-efficiency, stable-performance organic electroluminescent device has an organic layer that includes the blue electroluminescent polymer.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: January 10, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jhun-mo Son, Sang-hoon Park, Jeong-yeol Lee, Woon-jung Beek, Hisaya Sato
  • Blue electroluminescent polymer and organic-electroluminescent device using the same
    Publication number: 20040072989
    Abstract: A blue electroluminescent polymer includes a phenoxazine unit in its polyarylene backbone, and a high-luminance, high-efficiency, stable-performance organic electroluminescent device has an organic layer that includes the blue electroluminescent polymer.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 15, 2004
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jhun-mo Son, Sang-hoon Park, Jeong-yeol Lee, Woon-jung Beek, Hisaya Sato