Patents by Inventor Moon-ki SEOK

Moon-ki SEOK 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).

  • Tribenzazole amine derivative and organic electroluminescent device comprising same
    Patent number: 11952372
    Abstract: Provided is a tribenzazole amine derivative represented by Formula 1 that effectively absorbs high energy UV light from an external light source to minimize damage to organic materials present in an organic electroluminescent device, contributing to a substantial improvement in the lifetime of the organic electroluminescent device. Also provided is an organic electroluminescent device using the tribenzazole amine derivative. The organic electroluminescent device includes a first electrode, a second electrode, and an organic layer arranged between the first and second electrodes. The organic layer includes the tribenzazole amine derivative.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 9, 2024
    Assignee: LAPTO CO., LTD.
    Inventors: Moon-ki Seok, Byung-soo Go, Chul-soo Lim, Hyun-a Kim, Kyou-sic Kim, Yong-pil Park, Kap-jong Han, Eu-gene Oh
  • ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
    Publication number: 20230337527
    Abstract: Disclosed is an organic compound contributing to improving the substantial light efficiency and field of view of an organic electroluminescent device.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 19, 2023
    Applicant: LAPTO CO., LTD.
    Inventors: Gyu-ri KIM, Gyung-woo KIM, Moon-ki SEOK, Kyou-sic KIM, Kap-jong HAN, Eu-gene OH
  • TERTIARY AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
    Publication number: 20230301181
    Abstract: Provided is a tertiary amine derivative. The tertiary amine derivative effectively absorbs light in the UV region from high-energy external light sources to minimize damage to organic materials in organic electroluminescent devices, contributing to a substantial improvement in the lifetime of the organic electroluminescent devices.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 21, 2023
    Applicant: LAPTO CO., LTD.
    Inventors: Moon-ki SEOK, Byung-soo GO, Hye-Jeong KIM, Young-jae KWON, Yong-pil PARK, Jeoung-hun YOON, Gyu-ri KIM, Kap-jong HAN, Eu-gene OH
  • TRIBENZAZOLE AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
    Publication number: 20220017503
    Abstract: Provided is a tribenzazole amine derivative represented by Formula 1 that effectively absorbs high energy UV light from an external light source to minimize damage to organic materials present in an organic electroluminescent device, contributing to a substantial improvement in the lifetime of the organic electroluminescent device. Also provided is an organic electroluminescent device using the tribenzazole amine derivative. The organic electroluminescent device includes a first electrode, a second electrode, and an organic layer arranged between the first and second electrodes. The organic layer includes the tribenzazole amine derivative.
    Type: Application
    Filed: August 30, 2019
    Publication date: January 20, 2022
    Applicant: LAPTO CO., LTD.
    Inventors: Moon-ki SEOK, Byung-soo GO, Chul-soo LIM, Hyun-a KIM, Kyou-sic KIM, Yong-pil PARK, Kap-jong HAN, Eu-gene OH