Patents by Inventor Song Ie HAN

Song Ie HAN 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 device
    Patent number: 11937440
    Abstract: The present invention may provide an organic electroluminescent device which exhibits low driving voltage as well as high efficiency by including an electron transporting layer material having an improved electron transporting ability.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 19, 2024
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Song Ie Han, Min Sik Eum, Jae Yi Sim, Yong Hwan Lee, Woo Jae Park, Tae Hyung Kim
  • Organic compound and organic electroluminescent device using the same
    Patent number: 11917910
    Abstract: The present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a novel compound having excellent electron transport capability and light emitting capability, and an organic electroluminescent device improved in terms of luminous efficiency, driving voltage, lifespan, etc. by including the novel compound in one or more organic layers.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: February 27, 2024
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Yong Hwan Lee, Min Sik Eum, Jae Yi Sim, Woo Jae Park, Song Ie Han
  • ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20200194706
    Abstract: The present invention may provide an organic electroluminescent device which exhibits low driving voltage as well as high efficiency by including an electron transporting layer material having an improved electron transporting ability.
    Type: Application
    Filed: July 5, 2018
    Publication date: June 18, 2020
    Applicant: DOOSAN SOLUS CO., LTD.
    Inventors: Song Ie HAN, Min Sik EUM, Jae Yi SIM, Yong Hwan LEE, Woo Jae PARK, Tae Hyung KIM