Patents by Inventor Won-jang Jeong

Won-jang Jeong 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).

  • Heterocyclic compound and organic light-emitting element including same
    Patent number: 12258353
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: March 25, 2025
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hyun-Ju La, Hye-Su Ji, Won-Jang Jeong
  • Heterocyclic compound and organic light emitting device comprising same
    Patent number: 12252485
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: March 18, 2025
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hye-Su Ji, Hyun-Ju La, Won-Jang Jeong, Dong-Jun Kim
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20250026730
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 23, 2025
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Dong Jin LEE, GWANG IL DONG, Won Jang JEONG, Dong Jun KIM
  • Compound, organic optoelectronic diode, and display device
    Patent number: 12171143
    Abstract: The present application relates to a compound represented by Chemical Formula 1, an organic optoelectronic diode and a display device. In Chemical Formula 1, each substituent has the same definition as in the specification.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: December 17, 2024
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yun-Ji Lee, Min-Ji Park, Won-Jang Jeong
  • AMINE COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240336541
    Abstract: The present specification relates to an amine compound and an organic light emitting device including the same.
    Type: Application
    Filed: September 8, 2022
    Publication date: October 10, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Na-Yeong KIM, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM
  • Heterocyclic compound and organic light emitting diode comprising same
    Patent number: 12101998
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: September 24, 2024
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Min-Ji Park, Yun-Ji Lee, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240315130
    Abstract: The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a manufacturing method thereof, and a composition for organic material layer.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 19, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam Jin LEE, Dong Jin LEE, Won Jang JEONG, Dong Jun KIM
  • Heterocyclic compound and organic light emitting device comprising same
    Patent number: 12089493
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 10, 2024
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin Lee, Young-Jin Lee, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20240298527
    Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 5, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Na-Yeong KIM, Won-Jang JEONG, Dong-Jun KIM
  • Heterocyclic compound and organic light emitting diode comprising same
    Patent number: 12077532
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: September 3, 2024
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Ji-Young Kim, Han-Kook Oh, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING SAME
    Publication number: 20240292741
    Abstract: The present application provides a heterocyclic compound which may significantly improve a service life, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the heterocyclic compound is contained in an organic material layer.
    Type: Application
    Filed: August 23, 2022
    Publication date: August 29, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Na-Yeong KIM, Hyo-Kyun HAM, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240284788
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: January 13, 2022
    Publication date: August 22, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Dong-Jin LEE, Ji-Un KIM, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND, AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME
    Publication number: 20240254099
    Abstract: The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: April 8, 2022
    Publication date: August 1, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Ji Un KIM, GWANG IL DONG, Yong Hui LEE, Won Jang JEONG, Dong Jun KIM
  • Heterocyclic compound and organic light emitting device comprising same
    Patent number: 12049472
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: July 30, 2024
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin Lee, Young-Jin Lee, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME
    Publication number: 20240246923
    Abstract: The present specification relates to a heterocyclic compound of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: November 19, 2021
    Publication date: July 25, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Su-Yeon KIM, GWANG-IL DONG, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20240237516
    Abstract: The present specification relates to a heterocyclic compound represented by the following Chemical Formula 1 and an organic light emitting device including the same: in Chemical Formula 1, R1 to R3 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; deuterium; halogen; a cyano group; a substituted or unsubstituted C1 to C60 alkyl group; a substituted or unsubstituted C2 to C60 alkenyl group; a substituted or unsubstituted C2 to C60 alkynyl group; a substituted or unsubstituted C1 to C60 alkoxy group; a substituted or unsubstituted C3 to C60 cycloalkyl group; a substituted or unsubstituted C2 to C60 heterocycloalkyl group; a substituted or unsubstituted C6 to C60 aryl group; a substituted or unsubstituted C2 to C60 heteroaryl group; and a group represented by the following Chemical Formula 2, any one of R1 to R3 is the group represented by the following Chemical Formula 2, however, the remaining two are not the group represented by the foll
    Type: Application
    Filed: November 17, 2023
    Publication date: July 11, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Dong Jin LEE, Won Jang JEONG, Dong Jun KIM, Dae Hyuk CHOI
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20240237512
    Abstract: The present application provides a heterocyclic compound and an organic light emitting device in which the heterocyclic compound is contained in an organic material layer.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 11, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Ji-Un KIM, Seung-Gyu YANG, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME, MANUFACTURING METHOD THEREFOR, AND COMPOSITION FOR ORGANIC LAYER
    Publication number: 20240206324
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 20, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Min Ji PARK, GWANG IL DONG, Won Jang JEONG, Dong Jun KIM
  • HETEROCYCLIC COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME, AND COMPOSITION FOR ORGANIC LAYER
    Publication number: 20240130227
    Abstract: The present invention provides a heterocyclic compound represented by Formula 1 and an organic light-emitting device comprising the same.
    Type: Application
    Filed: November 16, 2021
    Publication date: April 18, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Dong Jin LEE, Gi Back LEE, Won Jang JEONG, Dong Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240107788
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 28, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Seong-Jong PARK, Won-Jang JEONG, Dong-Jun KIM