Patents by Inventor Kumhee LEE

Kumhee LEE 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).

  • Organometallic compound and organic light-emitting device including the same
    Patent number: 12089487
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: September 10, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyuyoung Hwang, Ohyun Kwon, Yoonhyun Kwak, Hyun Koo, Kumhee Lee, Hyeonho Choi, Whail Choi, Seokhwan Hong
  • ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20210193940
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 24, 2021
    Inventors: Kyuyoung Hwang, Ohyun Kwon, Yoonhyun Kwak, Hyun Koo, Kumhee Lee, Hyeonho Choi, Whail Choi, Seokhwan Hong
  • Organometallic compound and organic light-emitting device including the same
    Patent number: 10340467
    Abstract: An organometallic compound of Formula 1: wherein in Formula 1, groups and variables are as described in the specification.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongwon Choi, Seungyeon Kwak, Yoonhyun Kwak, Ohyun Kwon, Jiwhan Kim, Kumhee Lee, Sunyoung Lee
  • ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20180097189
    Abstract: An organometallic compound of Formula 1: wherein in Formula 1, groups and variables are as described in the specification.
    Type: Application
    Filed: December 4, 2017
    Publication date: April 5, 2018
    Inventors: Jongwon Choi, Seungyeon Kwak, Yoonhyun Kwak, Ohyun Kwon, Jiwhan Kim, Kumhee Lee, Sunyoung Lee
  • Organometallic compound and organic light-emitting device including the same
    Patent number: 9865826
    Abstract: An organometallic compound of Formula 1: wherein in Formula 1, groups and variables are as described in the specification.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongwon Choi, Seungyeon Kwak, Yoonhyun Kwak, Ohyun Kwon, Jiwhan Kim, Kumhee Lee, Sunyoung Lee
  • Carbazole-based compound and organic light emitting device including the same
    Patent number: 9780312
    Abstract: A carbazole compound represented by Formula 1: wherein in Formula 1, groups and variables are the same as described in the specification.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 3, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kumhee Lee, Jiyoun Lee, Yoonhyun Kwak, Hyun Koo, Daeyoung Chung
  • Carbazole compound and organic light emitting device including the same
    Patent number: 9732069
    Abstract: A carbazole compound represented by Formula 1 wherein, in Formula 1, X1, L1 to L5, R1 to R4, R11, R12, a1 to a5, b1 to b4, b11, b12, and c1 are described in the specification.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: August 15, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Kumhee Lee, Jiyoun Lee, Yoonhyun Kwak, Youngjae Park, Seokhwan Hong
  • Organometallic compound and organic light-emitting device including the same
    Patent number: 9670241
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kumhee Lee, Kyuyoung Hwang, Ohyun Kwon, Yoonhyun Kwak, Hyeonho Choi, Hyun Koo, Jiwhan Kim, Sangyeob Lee
  • ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20160222044
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 4, 2016
    Inventors: Kumhee LEE, Kyuyoung HWANG, Ohyun KWON, Yoonhyun KWAK, Hyeonho CHOI, Hyun KOO, Jiwhan KIM, Sangyeob LEE
  • ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20160155962
    Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein in Formula 1, M, L1, L2, n1, and n2 are the same as described in the specification.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventors: Kyuyoung HWANG, Ohyun KWON, Yoonhyun KWAK, HYUN KOO, Kumhee LEE, Hyeonho CHOI, Whail CHOI, Seokhwan HONG
  • CARBAZOLE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20160111657
    Abstract: A carbazole compound represented by Formula 1: wherein in Formula 1, groups and variables are the same as described in the specification.
    Type: Application
    Filed: April 1, 2015
    Publication date: April 21, 2016
    Inventors: Kumhee LEE, Jiyoun LEE, Yoonhyun KWAK, Hyun KOO, Daeyoung CHUNG
  • ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20160013431
    Abstract: An organometallic compound of Formula 1: wherein in Formula 1, groups and variables are as described in the specification.
    Type: Application
    Filed: December 22, 2014
    Publication date: January 14, 2016
    Inventors: Jongwon Choi, Seungyeon Kwak, Yoonhyun Kwak, Ohyun Kwon, Jiwhan Kim, Kumhee Lee, Sunyoung Lee
  • CARBAZOLE COMPOUND AND ORGANIC LIGHT EMITTING DEVICE INCUDING THE SAME
    Publication number: 20150336937
    Abstract: A carbazole compound represented by Formula 1 wherein, in Formula 1, X1, L1 to L5, R1 to R4, R11, R12, a1 to a5, b1 to b4, b11, b12, and c1 are described in the specification.
    Type: Application
    Filed: January 16, 2015
    Publication date: November 26, 2015
    Inventors: Kumhee LEE, Jiyoun LEE, Yoonhyun KWAK, Youngjae PARK, Seokhwan HONG