Patents by Inventor Min Ju Cho

Min Ju Cho 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).

  • Patent number: 11987153
    Abstract: An apparatus for adjusting a seat of a vehicle includes a seat back frame, a cushion frame that is moved forward and backward by a motor driving unit, a cushion hinge part connecting the seat back frame and the cushion frame and rotating according to the movement of the cushion frame to adjust the angle of the seat back frame, and a seat back hinge part connecting the seat back frame and the vehicle body and rotating according to the movement of the seat back frame.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: May 21, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, DAECHANG SEAT CO., LTD-DONGTAN, HYUNDAI TRANSYS INC.
    Inventors: Min Ju Lee, Seunghyun Kim, Byung Yong Choi, Sanghyun Lee, Seon Chae Na, Chan Ki Cho, In Chang Hwang, Donghwan Kim, Youngwoon Choi, Jaejin Lee
  • Patent number: 11984513
    Abstract: A charge trapping non-volatile organic memory device according to the present invention has a structure in which an organic matter-based blocking layer, a trapping layer, and a tunneling layer are sequentially positioned between a gate and an organic semiconductor layer positioned on an insulating substrate, the trapping layer including a metal oxide and a polymer, and has an organic-inorganic composite film in which the metal oxide is dispersed in a polymer matrix in units of atoms.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: May 14, 2024
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byung Jin Cho, Min Ju Kim, Eui Joong Shin, Jae Joong Jung
  • Publication number: 20240090326
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound can be a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Application
    Filed: September 26, 2023
    Publication date: March 14, 2024
    Applicants: LG DISPLAY CO., LTD, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin YOON, Dae-Wi YOON, Ji-Ae LEE, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, JiWon YOON
  • Patent number: 11844275
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an EML.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: December 12, 2023
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae-Wi Yoon, Suk-Young Bae, In-Ae Shin, Su-Na Choi, Dong-Hoon Choi, Min-Ju Cho, Jiwon Yoon
  • Patent number: 11825741
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 21, 2023
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin Yoon, Dae-Wi Yoon, Ji-Ae Lee, Su-Na Choi, Dong-Hoon Choi, Min-Ju Cho, Jiwon Yoon
  • Patent number: 11505557
    Abstract: Discussed is an organic compound of Formula 1 and an organic light emitting diode and an OLED device including the organic compound. In the organic compound, Ar1 is a heteroaryl group comprising a nitrogen atom, and Ar2 is a C6 to C30 aryl group, and R is a C1 to C10 alkyl group. The organic compound may be included in an emitting material layer of the organic light emitting diode as a host such that an emitting efficiency and a lifespan of the organic light emitting diode and the OLED device are improved.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 22, 2022
    Assignees: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae-Wi Yoon, Bo-Min Seo, Chun-Ki Kim, Dong-Hoon Choi, Min-Ju Cho, Su-Na Choi, Mallesham Godumala
  • Publication number: 20210119147
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an EML.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 22, 2021
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Dae-Wi YOON, Suk-Young BAE, In-Ae SHIN, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, Jiwon YOON
  • Publication number: 20210020847
    Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).
    Type: Application
    Filed: July 16, 2020
    Publication date: January 21, 2021
    Applicants: LG DISPLAY CO., LTD, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin YOON, Dae-Wi YOON, Ji-Ae LEE, Su-Na CHOI, Dong-Hoon CHOI, Min-Ju CHO, Jiwon YOON
  • Publication number: 20200190100
    Abstract: Discussed is an organic compound of Formula 1 and an organic light emitting diode and an OLED device including the organic compound. In the organic compound, Ar1 is a heteroaryl group comprising a nitrogen atom, and Ar2 is a C6 to C30 aryl group, and R is a C1 to C10 alkyl group. The organic compound may be included in an emitting material layer of the organic light emitting diode as a host such that an emitting efficiency and a lifespan of the organic light emitting diode and the OLED device are improved.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Dae-Wi Yoon, Bo-Min Seo, Chun-Ki Kim, Dong-Hoon Choi, Min-Ju Cho, Su-Na Choi, Mallesham GODUMALA
  • Patent number: 8420231
    Abstract: An iridium phosphorescent dendrimer represented by Formula 1: wherein A is a carbazole-based dendron. Also disclosed is a method of preparing the iridium phosphorescent dendrimer and an electroluminescent device including the iridium phosphorescent dendrimer.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: April 16, 2013
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Dong-hoon Choi, Kyung-moon Jung, Min-ju Cho
  • Patent number: 7915428
    Abstract: A photorefractive dendron compound, a photorefractive dendrimer compound and applications thereof, and more particularly, a photorefractive dendron compound, including a non-linear chromophore containing a tricyanopyrroline-based electron-withdrawing group and a carbazole derivative having excellent charge transport properties, a method of preparing the photorefractive dendrimer compound, a photorefractive device including the photorefractive dendrimer compound, and a method of manufacturing the photorefractive device. In the photorefractive dendrimer compound, dendron has the non-linear optical chromophore and carbazole introduced thereto to thus impart one molecule with both photoconductivity and non-linear optical properties, thereby solving conventional problems caused by poor compatibility between photoconductive material and chromophores in conventional photorefractive material.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: March 29, 2011
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation, Korea University Industrial & Academic Collaboration Foundation
    Inventors: Dong Hoon Choi, Min Ju Cho, Kyung Moon Jung
  • Publication number: 20100084970
    Abstract: An iridium phosphorescent dendrimer represented by Formula 1: wherein A is a carbazole-based dendron. Also disclosed is a method of preparing the iridium phosphorescent dendrimer and an electroluminescent device including the iridium phosphorescent dendrimer.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 8, 2010
    Applicants: SAMSUNG ELECTRONICS CO., LTD, SNU R&DB FOUNDATION
    Inventors: Dong Hoon CHOI, Kyung Moon JUNG, Min Ju CHO
  • Publication number: 20090223627
    Abstract: A photorefractive dendron compound, a photorefractive dendrimer compound and applications thereof, and more particularly, a photorefractive dendron compound, including a non-linear chromophore containing a tricyanopyrroline-based electron-withdrawing group and a carbazole derivative having excellent charge transport properties, a method of preparing the photorefractive dendrimer compound, a photorefractive device including the photorefractive dendrimer compound, and a method of manufacturing the photorefractive device. In the photorefractive dendrimer compound, dendron has the non-linear optical chromophore and carbazole introduced thereto to thus impart one molecule with both photoconductivity and non-linear optical properties, thereby solving conventional problems caused by poor compatibility between photoconductive material and chromophores in conventional photorefractive material.
    Type: Application
    Filed: October 8, 2007
    Publication date: September 10, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION, KOREA UNIVERSITY INDUSTRIAL & ACADEMIC COLLABORATION FOUNDATION
    Inventors: Dong Hoon CHOI, Min Ju CHO, Kyung Moon JUNG