Patents by Inventor Hee-Dong Choi

Hee-Dong Choi 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: 10562865
    Abstract: The present technology provides aryl or heteroaryl triazolone derivatives or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and the use thereof. The aryl or heteroaryl triazolone derivatives or their pharmaceutically acceptable salts exhibit selective inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: February 18, 2020
    Assignee: YUHAN CORPORATION
    Inventors: Tae Dong Han, Hee Jae Tak, Eun Kyung Kim, Su Bin Choi, Dong Hoon Kim, Sol Park, Eun Hye Jung, Hyun Ho Choi, Tae Wang Kim, Mi Kyeong Ju, Na Ry Ha
  • Patent number: 10516128
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 24, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Young Han, Chang Wook Han, Tae Il Kum, Gwi Jeong Cho, Tae Shick Kim, Se Ung Kim, Hee Dong Choi
  • Publication number: 20190355985
    Abstract: An embodiment of the present invention provides a method for preparing a silicon-carbon-graphene composite, comprising the steps of: (step 1) adding a carbon precursor solution to silicon and performing wet grinding so as to prepare a suspension: (step 2) forming a silicon-carbon composite by spray drying the suspension; and (step 3) spray drying and heat treating a solution comprising the silicon-carbon composite and graphene oxide.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 21, 2019
    Applicant: Korea Institute of Geoscience And Mineral Resources
    Inventors: Hee-Dong JANG, Han-Kwon CHANG, Dae-Sup Kil, Ji-Hyuk Choi, Sun-Kyung Kim
  • Publication number: 20190344618
    Abstract: A constant velocity joint assembly integrated with a wheel hub device may include an internal race coupled to an end portion of a driveshaft, a plurality of joint balls held in the internal race, and a hub housing accommodating and coupling the internal race holding the joint balls therein, with a bearing coupled to an external circumferential surface thereof, the hub housing provided as an external race of a constant velocity joint and the wheel hub device.
    Type: Application
    Filed: August 24, 2018
    Publication date: November 14, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corp., HYUNDAI WAI Corporation
    Inventors: Won Jun CHOI, Hee IL KIM, Kong Sup JUNG, Ki Dong PARK, Chang Hee JEONG, Bum Jae LEE
  • Publication number: 20190322655
    Abstract: The present technology provides triazolone derivatives or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and the use thereof. The triazolone derivatives or their pharmaceutically acceptable salts exhibit selective inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Application
    Filed: March 20, 2019
    Publication date: October 24, 2019
    Applicant: YUHAN CORPORATION
    Inventors: Tae Dong HAN, Hee Jae TAK, Eun Kyung KIM, Su Bin CHOI, Sol PARK, Dong Hoon KIM, So Young KIM, Hyun Ho CHOI, Tae Wang KIM, Mi Kyeong JU, Na Ry HA, Eui Chul LEE
  • Publication number: 20190308944
    Abstract: The present technology provides aryl or heteroaryl triazolone derivatives or pharmaceutically acceptable salts thereof, preparation processes thereof, pharmaceutical compositions comprising the same, and the use thereof. The aryl or heteroaryl triazolone derivatives or their pharmaceutically acceptable salts exhibit selective inhibitory activity on VAP-1 and therefore can be usefully applied, e.g., for the treatment and prophylaxis of nonalcoholic hepatosteatosis (NASH).
    Type: Application
    Filed: March 20, 2019
    Publication date: October 10, 2019
    Applicant: YUHAN CORPORATION
    Inventors: Tae Dong HAN, Hee Jae TAK, Eun Kyung KIM, Su Bin CHOI, Dong Hoon KIM, Sol PARK, Eun Hye JUNG, Hyun Ho CHOI, Tae Wang KIM, Mi Kyeong JU, Na Ry HA
  • Patent number: 10374027
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 6, 2019
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Publication number: 20190144045
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The method includes mounting a first prepreg formed to have a shape corresponding to a molding groove on a lower die provided with the molding groove. The molding groove is inclined upwards from the center of a lower portion of the lower die to opposite ends of the lower die. A second prepreg having a sheet type is mounted on the lower die so as to cover the first prepreg. The first prepreg and the second prepreg are integrally molded by placing an upper die on the lower die.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Inventors: Min Soo KIM, Wook Hyun HAN, Chang Dong KIM, Jun Hyoung KIM, Jun Young KIM, Sang Sun PARK, Joung Myung LIM, Ji Hwan CHOI, Hee Young KO
  • Publication number: 20180212178
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Inventors: Mi-Young HAN, Chang Wook HAN, Tae Il KUM, Gwi Jeong CHO, Tae Shick KIM, Se Ung KIM, Hee Dong CHOI
  • Patent number: 9960379
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: May 1, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Young Han, Chang Wook Han, Tae Il Kum, Gwi Jeong Cho, Tae Shick Kim, Se Ung Kim, Hee Dong Choi
  • Publication number: 20180083087
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventor: Hee Dong CHOI
  • Patent number: 9881987
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: January 30, 2018
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Publication number: 20170279059
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 28, 2017
    Inventors: Mi-Young HAN, Chang Wook HAN, Tae Il KUM, Gwi Jeong CHO, Tae Shick KIM, Se Ung KIM, Hee Dong CHOI
  • Patent number: 9711747
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 18, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Young Han, Chang Wook Han, Tae Il Kum, Gwi Jeong Cho, Tae Shick Kim, Se Ung Kim, Hee Dong Choi
  • Patent number: 9508747
    Abstract: A thin film transistor array substrate is discussed. The thin film transistor array substrate includes, according to one embodiment, gate and data lines crossing each other, a gate insulation film, a gate electrode, an active layer, an etch stop layer formed on the active layer to define a channel region of the active layer, and a source electrode and a drain electrode formed on the active layer. The etch stop layer is between the source and drain electrodes spaced apart from the etch stop layer. The source electrode and the drain electrode include a first electrode layer and a second electrode layer disposed on the first electrode. The first electrode layer is formed from a dry-etchable material and the second electrode layer is formed from a wet-etchable material.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hee Dong Choi
  • Publication number: 20160315135
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 27, 2016
    Inventor: Hee Dong CHOI
  • Patent number: 9444066
    Abstract: An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are discussed. In one example, the organic electroluminescent device includes first and second electrodes facing each other on a substrate and at least two emission layers formed between the first and second electrodes and realizing blue light, wherein, among the emission layers, a first blue emission layer close to the first electrode includes a first blue dopant having a different maximum luminescence wavelength than that of a second blue dopant of a second blue emission layer close to the second electrode.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 13, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: So-Yeon Ahn, Chang-Wook Han, Hong-Seok Choi, Seung-Ryong Joung, Gwi-Jeong Cho, Hee-Dong Choi
  • Patent number: 9412801
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 9, 2016
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Patent number: 9391131
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 12, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Dong Choi, Sung Jin Hong, Soon Il Yun, Il Gi Jeong, Joong Sun Yoon, Kyungsu Lee, Seung-Yong Yang
  • Publication number: 20160164050
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Hee Dong CHOI, Sung Jin HONG, Soon Il YUN, Il Gi JEONG, Joong Sun YOON, Kyungsu LEE, Seung-Yong YANG