Patents by Inventor Min-Sik Eum

Min-Sik Eum 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).

  • 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
  • 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
  • Patent number: 11832514
    Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 28, 2023
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Publication number: 20210147336
    Abstract: The present invention relates to a novel compound and an organic electroluminescent device including the same, and by using the compound according to the present invention in an organic material layer, preferably a light emitting layer, of an organic electroluminescent device, luminous efficiency, driving voltage, lifetime and the like of the organic electroluminescent device may be enhanced.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 20, 2021
    Applicant: DOOSAN SOLUS CO., LTD.
    Inventors: Jae Yi SIM, Min-Sik EUM, Woo Jae PARK
  • Publication number: 20210143327
    Abstract: The present disclosure relates to a novel compound and an organic electroluminescent device including the same. When the compound according to the present disclosure is used in an organic layer, preferably a light-emitting layer, in an organic electroluminescent device, it may improve the luminous efficiency, driving voltage, lifetime, etc. of the organic electroluminescent device.
    Type: Application
    Filed: February 13, 2019
    Publication date: May 13, 2021
    Applicant: DOOSAN SOLUS CO., LTD.
    Inventors: Jae Yi SIM, Min Sik EUM, Woo Jae PARK
  • Patent number: 10916709
    Abstract: The present invention relates to a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: February 9, 2021
    Assignee: DOOSAN SOLUS CO., LTD.
    Inventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Publication number: 20200251659
    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: Application
    Filed: May 18, 2018
    Publication date: August 6, 2020
    Applicant: DOOSAN CORPORATION
    Inventors: Yong Hwan LEE, Min Sik EUM, Jae Yi SIM, Woo Jae PARK, Song le HAN
  • 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
  • Publication number: 20200185617
    Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Publication number: 20200185618
    Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Hojun SON, Woo Jae PARK, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Publication number: 20200168805
    Abstract: The present disclosure relates to a novel organic compound and an organic EL device including the organic compound. The compound according to the present disclosure may be used in an organic layer of an organic EL device, more specifically, in a light emitting layer, a light emitting auxiliary layer, an electron transport auxiliary layer, or an electron transporting layer and may improve driving voltage, luminous efficiency, and lifespan characteristics of the organic EL device.
    Type: Application
    Filed: July 2, 2018
    Publication date: May 28, 2020
    Applicant: DOOSAN CORPORATION
    Inventors: Woo Jae PARK, Min Sik EUM, JaeYi SIM
  • Patent number: 9960363
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 1, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Min-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Publication number: 20180053900
    Abstract: The present invention relates to a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.
    Type: Application
    Filed: December 24, 2015
    Publication date: February 22, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Hojun SON, Woo Jae PARK, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Publication number: 20180013072
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 11, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Patent number: 9837618
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 5, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Patent number: 9543538
    Abstract: An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 10, 2017
    Assignees: SAMSUNG DISPLAY CO., LTD., DOSAN CORPORATION
    Inventors: Seul-Ong Kim, Mi-Kyung Kim, Dong-Woo Shin, Chang-Woong Chu, Tae Hyung Kim, HoCheol Park, Youngmi Beak, Min-Sik Eum, Eunjung Lee, Chang Jun Lee
  • Publication number: 20150236272
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Application
    Filed: August 13, 2013
    Publication date: August 20, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Publication number: 20150207093
    Abstract: An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.
    Type: Application
    Filed: October 31, 2014
    Publication date: July 23, 2015
    Inventors: Seul-Ong Kim, Mi-Kyung Kim, Dong-Woo Shin, Chang-Woong Chu, Tae Hyung Kim, HoCheol Park, Youngmi Baek, Min-Sik Eum, Eunjung Lee, Chang Jun Lee