Patents by Inventor Seong-So Kim

Seong-So Kim 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).

  • Publication number: 20190237681
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 1, 2019
    Inventors: Minyoung KANG, Dong Hoon LEE, Boonjae JANG, Jungi JANG, Seong So KIM
  • Publication number: 20190198766
    Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer including a compound represented by Chemical Formula 1 and an electron transport region including a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency, and lifetime.
    Type: Application
    Filed: March 8, 2018
    Publication date: June 27, 2019
    Inventors: Sang Duk SUH, Sung Kil HONG, Seong So KIM
  • Patent number: 10326082
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Minyoung Kang, Dong Hoon Lee, Boonjae Jang, Jungi Jang, Seong So Kim
  • Patent number: 10263193
    Abstract: Disclosed are a heterocyclic compound represented by the following Chemical Formula having proper energy level, and excellent electrochemical stability and thermal stability, and an organic light emitting device using the same:
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 16, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Minyoung Kang, Dong Hoon Lee, Boonjae Jang, Jungi Jang, Seong So Kim
  • Patent number: 10103336
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: October 16, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Minyoung Kang, Dong Hoon Lee, Boonjae Jang, Jungi Jang, Seong So Kim
  • Patent number: 10074809
    Abstract: An exemplary embodiment of the present specification provides an organic electroluminescence device including: an anode; a cathode; a light emitting layer provided between the anode and the cathode; and an electron transporting layer provided between the cathode and the light emitting layer, in which the electron transporting layer includes a first electron transporting material and a second electron transporting material, the first electron transporting material is an organic material including a monocyclic or polycyclic ring which includes an N-containing six-membered ring, the second electron transporting material is an organic material including a five-membered hetero ring which includes at least one heteroatom of N, O, and S, or a cyano group, and a dipole moment of the second electron transporting material is larger than a dipole moment of the first electron transporting material.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: September 11, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Boonjae Jang, Jungl Jang, Seong So Kim, Dong Hoon Lee
  • Patent number: 10035765
    Abstract: The present specification provides a multicyclic compound including nitrogen and an organic light emitting device using the same.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 31, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hyok Joon Kwon, Minjun Kim, Wanpyo Hong, Kongkyeom Kim, Seong So Kim
  • Patent number: 10032997
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Minyoung Kang, Dong Hoon Lee, Boonjae Jang, Jungi Jang, Seong So Kim
  • Publication number: 20180145272
    Abstract: The present specification relates to a novel compound and an organic light emitting device including the same.
    Type: Application
    Filed: September 9, 2016
    Publication date: May 24, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum CHA, Jin Joo KIM, Seong So KIM, Jemin RYU
  • Patent number: 9954181
    Abstract: The present specification provides a hetero-cyclic compound and an organic light emitting device including the hetero-cyclic compound.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 24, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Dong Uk Heo, Dong Hoon Lee, Sangbin Lee, Jungi Jang, Seong So Kim
  • Patent number: 9951270
    Abstract: The present specification describes a novel polycyclic compound and an organic electroluminescent device using the same.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: April 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jiwon Kwak, Sung Kil Hong, Seong So Kim
  • Publication number: 20180069180
    Abstract: The present specification provides an organic light emitting device.
    Type: Application
    Filed: June 10, 2016
    Publication date: March 8, 2018
    Inventors: Yongbum CHA, Sung Kil HONG, Seong So KIM, Jemin RYU
  • Patent number: 9887368
    Abstract: The present invention provides an organic light emitting device comprising a first electrode, a second electrode, and one or more organic material layers disposed between the first electrode and the second electrode, and having an excellent life-span property by changing a dipole moment of a compound comprised in the organic material layers.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: February 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Minseung Chun, Jungi Jang, Changhwan Shin, Seong So Kim, Hyungjin Lee, Sang Young Jeon, Chang Hwan Kim, Dong Sik Kim
  • Patent number: 9882145
    Abstract: The present specification provides a novel compound greatly improving the life span, efficiency, electrical and chemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the compound in an organic compound layer.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: January 30, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Sangbin Lee, Dong Uk Heo, Jungi Jang, Seong So Kim, Dong Hoon Lee, Boonjae Jang, Minyoung Kang
  • Publication number: 20170283379
    Abstract: The present specification provides a multicyclic compound including nitrogen and an organic light emitting device using the same.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 5, 2017
    Inventors: Hyok Joon KWON, Minjun KIM, Wanpyo HONG, Kongkyeom KIM, Seong So KIM
  • Publication number: 20170279055
    Abstract: An exemplary embodiment of the present specification provides an organic electroluminescence device including: an anode; a cathode; a light emitting layer provided between the anode and the cathode; and an electron transporting layer provided between the cathode and the light emitting layer, in which the electron transporting layer includes a first electron transporting material and a second electron transporting material, the first electron transporting material is an organic material including a monocyclic or polycyclic ring which includes an N-containing six-membered ring, the second electron transporting material is an organic material including a five-membered hetero ring which includes at least one heteroatom of N, O, and S, or a cyano group, and a dipole moment of the second electron transporting material is larger than a dipole moment of the first electron transporting material.
    Type: Application
    Filed: October 27, 2015
    Publication date: September 28, 2017
    Applicant: LM CHEM, LTD.
    Inventors: Boonjae JANG, Jungl JANG, Seong So KIM, Dong Hoon LEE
  • Patent number: 9728728
    Abstract: The present invention provides a novel compound that is capable of largely improving a life span, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device in which the compound is included in an organic compound layer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Kil Hong, Yun Hwan Kim, Jungoh Huh, Seongmi Cho, Seong So Kim, Yongbum Cha
  • Publication number: 20160240793
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 18, 2016
    Inventors: Minyoung KANG, Dong Hoon LEE, Boonjae JANG, Jungi JANG, Seong So KIM
  • Publication number: 20160233430
    Abstract: The present specification provides a hetero-cyclic compound and an organic light emitting device including the hetero-cyclic compound.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 11, 2016
    Inventors: Dong Uk HEO, Dong Hoon LEE, Sangbin LEE, Jungi JANG, Seong So KIM
  • Publication number: 20160233431
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device using the same.
    Type: Application
    Filed: September 29, 2014
    Publication date: August 11, 2016
    Inventors: Minyoung KANG, Dong Hoon LEE, Boonjae JANG, Jungi JANG, Seong So KIM