Patents by Inventor Ho-Cheol Park

Ho-Cheol Park 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: 11922962
    Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: March 5, 2024
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
    Inventors: Seungkwon Beack, Tae Jin Lee, Min Je Kim, Kyeongok Kang, Dae Young Jang, Jeongil Seo, Jin Woo Hong, Chieteuk Ahn, Ho Chong Park, Young-cheol Park
  • Patent number: 11456422
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 27, 2022
    Assignee: SOLUS ADVANCED MATERIALS CO., LTD.
    Inventors: Tae Hyung Kim, In Hyuk Lee, Yong Hwan Lee, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Eun Jung Lee, Young Mi Beak
  • Patent number: 10756277
    Abstract: The present disclosure relates to a novel organic compound and an organic electroluminescent device comprising the same, and the organic compound of the present disclosure may be used for an organic material layer of the organic electroluminescent device, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent device.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 25, 2020
    Assignee: DOOSAN SOLUS CO., LTD.
    Inventors: Tae Jin Choi, Ho-Cheol Park, Youngmi Beak, Eunjin Kim
  • Publication number: 20190157567
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung KIM, In Hyuk LEE, Yong Hwan LEE, Jin Yong SHIN, Ho Cheol PARK, Chang Jun LEE, Eun Jung LEE, Young Mi BEAK
  • Patent number: 10297759
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 21, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Yong Hwan Lee, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Eun Jung Lee, Young Mi Beak
  • Patent number: 10236451
    Abstract: Disclosed is a novel benzimidazole compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the benzimidazole compound in one or more organic material layers thereof so as to thereby achieve enhanced characteristics, such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 19, 2019
    Assignee: DOOSAN CORPORATION
    Inventors: Hyung Chan Bae, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Young Shin
  • Patent number: 10230053
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode opposite the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron control layer, wherein the hole transport region includes at least one compound selected from a first compound represented by Formula 1 and a second compound represented by Formula 2, and the electron control layer includes a third compound represented by Formula 3:
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: March 12, 2019
    Assignees: Samsung Display Co., Ltd., Doosan Corporation
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Sang-Woo Lee, Chang-Woong Chu, Tae-Hyung Kim, Ho-Cheol Park, Chang-Jun Lee, Young-Bae Kim, Hoe-Moon Kim
  • Patent number: 10038146
    Abstract: The present invention relates to a novel indole-based compound having superior hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the indole-based compound in one or more organic layers thereof so as to thereby achieve improved characteristics, such as light-emitting efficiency, driving voltage, and lifespan characteristics.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 31, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Sung Moo Kim, Young Bae Kim, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Young Mi Baek, Jin Yong Shin
  • Patent number: 9960363
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 1, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Min-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
  • Patent number: 9905777
    Abstract: The present invention relates to a novel compound and an organic electroluminescence device including the same, and the compound according to the present invention may be used in an organic material layer, preferably a light-emitting layer of an organic electroluminescence device, thereby enhancing the light-emitting efficiency, driving voltage, lifespan, and the like of the organic electroluminescence device.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 27, 2018
    Assignee: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Hoe Moon Kim, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Young Mi Beak, Eun Jung Lee
  • Publication number: 20180013072
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 11, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Patent number: 9837618
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 5, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Patent number: 9761813
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emission, and other properties, and to an organic electroluminescent device the luminous efficiency, driving voltage, service life, and other characteristics of which are improved due to containing the compound in one or more organic material layers.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: September 12, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin
  • Publication number: 20170170406
    Abstract: The present disclosure relates to a novel organic compound and an organic electroluminescent device comprising the same, and the organic compound of the present disclosure may be used for an organic material layer of the organic electroluminescent device, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent device.
    Type: Application
    Filed: April 7, 2015
    Publication date: June 15, 2017
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Jin CHOI, Ho-Cheol PARK, Youngmi BEAK, Eunjin KIM
  • Publication number: 20160226000
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode opposite the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron control layer, wherein the hole transport region includes at least one compound selected from a first compound represented by Formula 1 and a second compound represented by Formula 2, and the electron control layer includes a third compound represented by Formula 3:
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Sang-Woo Lee, Chang-Woong Chu, Tae-Hyung Kim, Ho-Cheol Park, Chang-Jun Lee, Young-Bae Kim, Hoe-Moon Kim
  • Publication number: 20150318483
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Application
    Filed: August 13, 2013
    Publication date: November 5, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung KIM, In Hyuk LEE, Yong Hwan LEE, Jin Yong SHIN, Ho Cheol PARK, Chang Jun LEE, Eun Jung LEE, Young Mi BEAK
  • Publication number: 20150236272
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Application
    Filed: August 13, 2013
    Publication date: August 20, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Publication number: 20150236271
    Abstract: The present invention relates to a novel compound and an organic electroluminescence device including the same, and the compound according to the present invention may be used in an organic material layer, preferably a light-emitting layer of an organic electroluminescence device, thereby enhancing the light-emitting efficiency, driving voltage, lifespan, and the like of the organic electroluminescence device.
    Type: Application
    Filed: August 7, 2013
    Publication date: August 20, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Hoe Moon Kim, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Young Mi Beak, Eun Jung Lee
  • Publication number: 20150214490
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emission, and other properties, and to an organic electroluminescent device the luminous efficiency, driving voltage, service life, and other characteristics of which are improved due to containing the compound in one or more organic material layers.
    Type: Application
    Filed: March 27, 2013
    Publication date: July 30, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin
  • Publication number: 20150171344
    Abstract: Disclosed is a novel benzimidazole compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the benzimidazole compound in one or more organic material layers thereof so as to thereby achieve enhanced characteristics, such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Application
    Filed: March 6, 2013
    Publication date: June 18, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Hyung Chan Bae, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Young Shin