Patents by Inventor Han Kyu PAK

Han Kyu PAK 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).

  • LIGHT EMITTING DEVICE AND FUSED POLYCYCLIC COMPOUND FOR LIGHT EMITTING DEVICE
    Publication number: 20230130170
    Abstract: An light emitting device of the present embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency:
    Type: Application
    Filed: October 3, 2022
    Publication date: April 27, 2023
    Inventors: Hyoyoung LEE, Soo-Byung KO, JUNHA PARK, Han Kyu PAK, Jang Yeol BAEK, Mun-Ki SIM, CHANSEOK OH
  • Organic electroluminescence device and fused polycyclic compound for organic electroluminescence device
    Patent number: 11489124
    Abstract: An organic electroluminescence device of the present embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency:
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoyoung Lee, Soo-Byung Ko, Junha Park, Han Kyu Pak, Jang Yeol Baek, Mun-Ki Sim, Chanseok Oh
  • ORGANIC ELECTROLUMINESCENCE DEVICE AND FUSED POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20210013423
    Abstract: An organic electroluminescence device of the present embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency:
    Type: Application
    Filed: May 26, 2020
    Publication date: January 14, 2021
    Inventors: Hyoyoung LEE, Soo-Byung KO, Junha PARK, Han Kyu PAK, Jang Yeol BAEK, Mun-Ki SIM, Chanseok OH
  • METHOD FOR PREPARING ENAMIDE COMPOUND AND RUTHENIUM COMPLEX CATALYST USED THEREIN
    Publication number: 20170291885
    Abstract: Provided is a method for preparing an enamide compound, which includes reacting an organic azide compound having ?-hydrogen and an anhydride by addition of a ruthenium complex catalyst in the presence of an ionic liquid, and a ruthenium complex catalyst used herein.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 12, 2017
    Inventors: Jai Wook PARK, Jin Yong PARK, Yong Jin KIM, Yea Rang KWON, Han Kyu PAK, Young Ho RHEE