Patents by Inventor Hyo-Kyun HAM

Hyo-Kyun HAM 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 DEVICE COMPRISING SAME
    Publication number: 20230357127
    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: February 19, 2021
    Publication date: November 9, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM, Hyo-Kyun HAM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230263053
    Abstract: The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the heterocyclic compound in an organic material layer.
    Type: Application
    Filed: March 10, 2021
    Publication date: August 17, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Hyun-Ju LA, Won-Jang JEONG, Dong-Jun KIM, Hyo-Kyun HAM
  • HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20230130126
    Abstract: Disclosed are 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 18, 2022
    Publication date: April 27, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Su-Yeon KIM, Na-Yeong KIM, Hyo-Kyun HAM, Won-Jang JEONG, Dong-Jun KIM
  • Organic light emitting diode and organic light emitting device including the same
    Patent number: 11380853
    Abstract: Disclosed is an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting material layer, which includes a first host, a second host and a first dopant and disposed between the first and second electrodes. The first host is represented by Formula 1, the second host may be a triazine derivative, and the first dopant may be a red, green or blue dopant.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 5, 2022
    Assignees: LG DISPLAY CO., LTD., HEESUNG MATERIAL CO., LTD.
    Inventors: Hye-Seung Kang, Do-Han Kim, Woo-Sam Kim, Dong-Jun Kim, Hyo-Kyun Ham, Young-Seok No
  • ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20200212312
    Abstract: Disclosed is an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and a first emitting material layer, which includes a first host, a second host and a first dopant and disposed between the first and second electrodes. The first host is represented by Formula 1, the second host may be a triazine derivative, and the first dopant may be a red, green or blue dopant.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicants: LG Display Co., Ltd., Heesung Material Co., Ltd.
    Inventors: Hye-Seung KANG, Do-Han KIM, Woo-Sam KIM, Dong-Jun KIM, Hyo-Kyun HAM, Young-Seok NO
  • Nitrogen-containing polycyclic compound and organic light emitting element using same
    Patent number: 10672993
    Abstract: The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: June 2, 2020
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Young-Seok No, Kee-Yong Kim, Hyo-Kyun Ham, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • Nitrogen-containing polycyclic compound and organic light emitting element using same
    Patent number: 10177319
    Abstract: The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 8, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Young-Seok No, Kee-Yong Kim, Hyo-Kyun Ham, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • NITROGEN-CONTAINING POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME
    Publication number: 20180323380
    Abstract: The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Young-Seok NO, Kee-Yong KIM, Hyo-Kyun HAM, Jin-Seok CHOI, Dae-Hyuk CHOI, Sung-Jin EUM, Joo-Dong LEE
  • NITROGEN-CONTAINING POLYCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME
    Publication number: 20170317295
    Abstract: The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 2, 2017
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Young-Seok NO, Kee-Yong KIM, Hyo-Kyun HAM, Jin-Seok CHOI, Dae-Hyuk CHOI, Sung-Jin EUM, Joo-Dong LEE