Patents by Inventor Yongbum CHA

Yongbum CHA 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).

  • SPIRO COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME
    Publication number: 20180083198
    Abstract: The present specification provides a compound having a spiro structure and an organic light emitting device including the same.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 22, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Jin Joo Kim, Sung Kil Hong, Sang Duk Suh
  • ORGANIC LIGHT EMITTING DEVICE
    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
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20180047914
    Abstract: The present specification provides a heterocyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: August 23, 2016
    Publication date: February 15, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Seongmi Cho, Jin Joo Kim
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20180037547
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: September 9, 2016
    Publication date: February 8, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Jin Joo Kim, Sung Kil Hong, Sang Duk Suh
  • DOUBLE-SPIRO TYPE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE CONTAINING SAME
    Publication number: 20180002256
    Abstract: The present specification relates to a double spiro structure compound, and an organic light emitting device comprising the same.
    Type: Application
    Filed: February 16, 2016
    Publication date: January 4, 2018
    Inventors: Yongbum CHA, Jin Joo Kim
  • SPIRO-TYPE COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20180006233
    Abstract: The present specification provides a compound having a spiro structure, and an organic light emitting device including the same.
    Type: Application
    Filed: October 12, 2016
    Publication date: January 4, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Jin Joo Kim, Sang Duk Suh, Jungbum Kim
  • SPIRO-TYPE COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20170365787
    Abstract: The present specification provides a compound having a spiro structure of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: October 12, 2016
    Publication date: December 21, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Jin Joo Kim, Sang Duk Suh, Jungbum Kim
  • AMINE COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20170365788
    Abstract: The present specification provides an amine compound of Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: October 12, 2016
    Publication date: December 21, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Sung Kil Hong, Jin Joo Kim
  • Compound and organic light-emitting device using same
    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
  • Compound and organic light-emitting device using same
    Patent number: 9373793
    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: June 20, 2012
    Date of Patent: June 21, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Sung Kil Hong, Yun Hwan Kim, Jungoh Huh, Seongmi Cho, Seong So Kim, Yongbum Cha
  • POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20160087216
    Abstract: The present specification provides a polycyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 24, 2016
    Inventors: Jin Joo KIM, Sung Kil HONG, Yongbum CHA
  • NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING SAME
    Publication number: 20140183489
    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: Application
    Filed: June 20, 2012
    Publication date: July 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung Kil Hong, Yun Hwan Kim, Jungoh Huh, Seongmi Cho, Seong So Kim, Yongbum Cha
  • NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING SAME
    Publication number: 20140091298
    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: Application
    Filed: December 10, 2013
    Publication date: April 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung Kil HONG, Yun Hwan KIM, Jungoh HUH, Seongmi CHO, Seong So KIM, Yongbum CHA