Patents by Inventor Mi-Yeon Han

Mi-Yeon Han 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).

  • Publication number: 20190372024
    Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Application
    Filed: March 6, 2018
    Publication date: December 5, 2019
    Inventors: Dong Uk HEO, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Mi Yeon HAN, Min Woo JUNG, Jung Hoon YANG
  • Publication number: 20190363260
    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: and an organic electroluminescent device including the same.
    Type: Application
    Filed: April 3, 2018
    Publication date: November 28, 2019
    Inventors: Mi Yeon HAN, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Dong Uk HEO, Min Woo JUNG
  • Publication number: 20190341558
    Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.
    Type: Application
    Filed: March 13, 2018
    Publication date: November 7, 2019
    Inventors: Jung Hoon YANG, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Min Young KANG, Dong UK HEO, Mi Yeon HAN, Min Woo JUNG
  • Patent number: 10461259
    Abstract: The present invention provides an organic light emitting device having improved driving voltage, efficiency and lifetime.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Boon Jae Jang, Dong Hoon Lee, Jung Oh Huh, Min Young Kang, Dong Uk Heo, Mi Yeon Han, Min Woo Jung
  • Publication number: 20190245149
    Abstract: Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic.
    Type: Application
    Filed: January 10, 2018
    Publication date: August 8, 2019
    Inventors: Dong Uk HEO, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Mi Yeon HAN, Min Woo JUNG
  • Publication number: 20190214571
    Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, EHOMO-ET?EHOMO-BH and ELUMO-ET>ELUMO-GH, and having improved driving voltage, efficiency, and lifetime.
    Type: Application
    Filed: March 26, 2018
    Publication date: July 11, 2019
    Inventors: Jung Oh HUH, Dong Hoon LEE, Boon Jae JANG, Min Young KANG, Dong Uk HEO, Mi Yeon HAN
  • Publication number: 20190207120
    Abstract: The present disclosure relates to a cyclic compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device provides a low driving voltage and an improved lifetime characteristic of the organic light emitting device.
    Type: Application
    Filed: April 27, 2018
    Publication date: July 4, 2019
    Inventors: Mi Yeon HAN, Jung Oh HUH, Boon Jae JANG, Dong Hoon LEE, Dong Uk HEO
  • Publication number: 20180354913
    Abstract: The present disclosure provides a novel heterocyclic compound and an organic light emitting device comprising the same.
    Type: Application
    Filed: July 20, 2017
    Publication date: December 13, 2018
    Inventors: Min Woo JUNG, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Min Young KANG, Dong Uk HEO, Mi Yeon HAN
  • Publication number: 20180351107
    Abstract: The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 6, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi Yeon HAN, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Dong Uk HEO, Min Woo JUNG
  • Publication number: 20180239256
    Abstract: The present disclosure relates to a photoresist stripper composition for manufacturing an LCD, and relates to an integrated photoresist stripper composition capable of being used in all processes for manufacturing a TFT-LCD. More specifically, the present disclosure relates to an aqueous photoresist stripper composition capable of being used in all of transition metal, potential metal and oxide semiconductor wires.
    Type: Application
    Filed: August 10, 2016
    Publication date: August 23, 2018
    Inventors: Ho-Sung Choi, Kwang-Hyun Ryu, Jong-Il Bae, Jong-Soon Lee, Sang-Ku Ha, Hye-Sung Yang, Mi-Yeon Han, Hyo-Jin Lee
  • Patent number: 6366144
    Abstract: A loop filtering apparatus for a phase locked loop (PLL). The loop filtering apparatus operates as a secondary loop filter in response to a lock-up detection signal indicating a non-lock-up state in order to reduce the lock-up time, and operates as a third loop filter in response to a lock-up detection signal indicating a non-lock-up state in order to minimize the phase noise.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: April 2, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Mi-Yeon Han
  • Publication number: 20010050579
    Abstract: A loop filtering apparatus for a phase locked loop (PLL). The loop filtering apparatus operates as a secondary loop filter in response to a lock-up detection signal indicating a non-lock-up state in order to reduce the lock-up time, and operates as a third loop filter in response to a lock-up detection signal indicating a non-lock-up state in order to minimize the phase noise.
    Type: Application
    Filed: November 30, 2000
    Publication date: December 13, 2001
    Inventor: Mi-Yeon Han