Patents by Inventor Jiwon KWAK

Jiwon KWAK 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 diode containing same
    Patent number: 11968897
    Abstract: The present specification relates to a hetero-cyclic compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. Such hetero-cyclic compound used as a material for an organic material layer of an organic light emitting device improves efficiency, achieves low driving voltage, and/or improves service life characteristics. [Chemical Formula 1] wherein R1 to R5, r3 to r5, L1, and Ar1 are defined therein.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: April 23, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Yongbum Cha, Seongmi Cho, Jungbum Kim, Sung Kil Hong, Jiwon Kwak
  • SUBSTRATE PROCESSING SYSTEM AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE USING THE SAME
    Publication number: 20230175124
    Abstract: A substrate processing system includes: a process chamber that performs a semiconductor process on a substrate; a first oxygen supply unit; a first chamber that receives a gas containing oxygen (O2) from the first oxygen supply unit, receives exhaust gases discharged from the process chamber, and oxidizes the exhaust gas using the oxygen supplied from the first oxygen supply unit; a second chamber connected to the first chamber, and that receives a first treatment gas from the first chamber and bums the first treatment gas; a third chamber connected to the second chamber, and that receives a second treatment gas from the second chamber and performs a wetting treatment of the second treatment gas; and a tank disposed below the first to third chambers and connected to each of the first to third chambers.
    Type: Application
    Filed: August 1, 2022
    Publication date: June 8, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Songyi BAEK, Youngtack SIM, Jiwon KWAK, Sejin KYUNG, Daewee KONG, Taemin KIM
  • Organic light-emitting device
    Patent number: 11158831
    Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: an anode; a cathode; and an organic layer between the anode and the cathode and including an emission layer, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, and the organic light-emitting device satisfies Equations 1 and 2.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: October 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaehyun Lee, Mikyung Kim, Seunggak Yang, Jiwon Kwak, Namwoo Kim, Byounghee Park, Hanbyul Jang
  • LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
    Publication number: 20210313535
    Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer disposed between the first electrode and the second electrode and having an emission layer, wherein the interlayer includes: i) a hole transport region disposed between the first electrode and the emission layer; and ii) an electron transport region disposed between the emission layer and the second electrode; wherein: the emission layer includes three or more hosts; the electron transport region includes a buffer layer; the three or more hosts include a hole transport host, a first electron transport host, and a second electron transport host; the buffer layer includes a third electron transport host; and a lowest unoccupied molecular orbital energy level of the second electron transport host is substantially equal to a lowest unoccupied molecular orbital energy level of the third electron transport host.
    Type: Application
    Filed: January 24, 2021
    Publication date: October 7, 2021
    Inventors: Mikyung KIM, Jaehyun LEE, Jiwon KWAK, Hyerim KIM, Jihyun SEO, Hanbyul JANG
  • LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME
    Publication number: 20210305531
    Abstract: A light-emitting device includes: a first electrode; a second electrode opposing the first electrode; and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer, a first emission auxiliary layer, a second emission auxiliary layer, and a hole transport region, the hole transport region is disposed between the first electrode and the emission layer, the first emission auxiliary layer and the second emission auxiliary layer are disposed between the emission layer and the hole transport region, the first emission auxiliary layer includes a first compound, the second emission auxiliary layer includes a second compound, the hole transport region includes a hole transport compound, and the first compound and the hole transport compound satisfy the Equation 1, as defined herein.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Inventors: Mikyung KIM, Jaehyun Lee, Jiwon Kwak, Hyerim Kim, Jihyun Seo, Kwanhee Lee, Hanbyul Jang
  • LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
    Publication number: 20210288263
    Abstract: A light-emitting device includes a hole transport region including two layers each including a Compound A group, a Compound B group, or any combination thereof, wherein the Compound A group includes one or two amine groups, and the amine group includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof, and the Compound B group does not includes an amine group, and includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof.
    Type: Application
    Filed: September 22, 2020
    Publication date: September 16, 2021
    Inventors: Mikyung KIM, Jaehyun LEE, Jiwon KWAK, Jihyun SEO, Seunggak YANG, Hanbyul JANG
  • Spiro-type compound and organic light emitting diode comprising same
    Patent number: 11075342
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 27, 2021
    Inventors: Jae Seung Ha, Jiwon Kwak, Sang Duk Suh
  • Heterocyclic compound and organic light emitting diode containing same
    Patent number: 10873035
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 22, 2020
    Inventors: Yongbum Cha, Seongmi Cho, Jungbum Kim, Sung Kil Hong, Jiwon Kwak
  • Heterocyclic compound and organic light emitting diode containing same
    Patent number: 10822330
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yongbum Cha, Seongmi Cho, Jungbum Kim, Sung Kil Hong, Jiwon Kwak
  • Spiro compound and organic light-emitting device comprising same
    Patent number: 10781366
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: September 22, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Jiwon Kwak, Jin Joo Kim
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20200274087
    Abstract: An organic light-emitting device is provided. The organic light-emitting device includes: an anode; a cathode; and an organic layer between the anode and the cathode and including an emission layer, wherein the emission layer includes a first emission layer including a first host, a second host, and a first dopant, and a second emission layer including a third host, a fourth host, and a second dopant, and the organic light-emitting device satisfies Equations 1 and 2.
    Type: Application
    Filed: September 4, 2019
    Publication date: August 27, 2020
    Inventors: Jaehyun LEE, Mikyung KIM, Seunggak YANG, Jiwon KWAK, Namwoo KIM, Byounghee PARK, Hanbyul JANG
  • Spiro compound and organic light-emitting device comprising same
    Patent number: 10738034
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Dong Uk Heo, Jiwon Kwak
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DIODE CONTAINING SAME
    Publication number: 20200123138
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: February 24, 2017
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Seongmi Cho, Jungbum Kim, Sung Kil Hong, Jiwon Kwak
  • Organic Light Emitting Device
    Publication number: 20190148650
    Abstract: The present specification relates to an organic light emitting device including an anode, a first organic material layer including a compound of Chemical Formula 1, a second organic material layer including a compound of Chemical Formula 2, a light emitting layer and a cathode.
    Type: Application
    Filed: May 26, 2017
    Publication date: May 16, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jiwon Kwak, Sung Kil Hong, Yongbum Cha
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DIODE CONTAINING SAME
    Publication number: 20180351111
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: February 23, 2017
    Publication date: December 6, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum Cha, Seongmi Cho, Jungbum Kim, Sung Kil Hong, Jiwon Kwak
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DIODE CONTAINING SAME
    Publication number: 20180261777
    Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yongbum CHA, Seongmi CHO, Jungbum KIM, Sung Kil HONG, Jiwon KWAK
  • SPIRO COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20180148639
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Application
    Filed: October 6, 2016
    Publication date: May 31, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Jiwon Kwak, Jin Joo Kim
  • SPIRO COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20180141933
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Application
    Filed: October 6, 2016
    Publication date: May 24, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Dong Uk Heo, Jiwon Kwak
  • SPIRO-TYPE COMPOUND AND ORGANIC LIGHT EMITTING DIODE COMPRISING SAME
    Publication number: 20180145261
    Abstract: The present specification relates to a spiro structure compound and an organic light emitting device including the same.
    Type: Application
    Filed: October 6, 2016
    Publication date: May 24, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jae Seung Ha, Jiwon Kwak, Sang Duk Suh
  • Multicyclic compound and organic electronic device using the same
    Patent number: 9951270
    Abstract: The present specification describes a novel polycyclic compound and an organic electroluminescent device using the same.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: April 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jiwon Kwak, Sung Kil Hong, Seong So Kim