Patents by Inventor Kyu-Hwan Lee

Kyu-Hwan 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).

  • Patent number: 11943985
    Abstract: Discussed are a light-emitting device and a light-emitting display device having improved efficiency and increased lifespan. A plurality of stacks is provided between an anode and a cathode for at least a subpixel to emit a predetermined color, and emissive layers in different stacks include the same color-based materials having different luminous properties.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 26, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jin Ho Park, Kyu Il Han, Chang Hwan Kwak, Dong Hyeok Lim, Hwa Yong Shin, Ji Hyung Lee
  • Publication number: 20240099099
    Abstract: An organic light-emitting display device includes a first pattern electrode, a second pattern electrode, and a third pattern electrode, each being electrically connected to a driving electrode, an organic light-emitting structure disposed on the first to third pattern electrodes, a common electrode disposed on the organic light-emitting structure, and a resonance-adjusting pattern disposed between the first pattern electrode and the organic light-emitting structure, the resonance-adjusting pattern overlapping a first light-emitting area in a plan view and including a conductive oxide. The organic light-emitting structure includes a hole-transporting layer, a light-emitting layer, and an electron-transporting layer. The light-emitting layer includes a common light-emitting layer continuously extending in the organic light-emitting structure, and a light-emitting pattern overlapping the third pattern electrode in a plan view.
    Type: Application
    Filed: June 17, 2020
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyu Hwan HWANG, Duck Jung LEE
  • Publication number: 20240099114
    Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.
    Type: Application
    Filed: November 24, 2023
    Publication date: March 21, 2024
    Inventors: Jae Sik KIM, Jae Ik KIM, Jung Sun PARK, Seung Yong SONG, Duck Jung LEE, Yeon Hwa LEE, Joon Gu LEE, Kyu Hwan HWANG
  • Publication number: 20240097466
    Abstract: Disclosed is a high voltage output device having a serial-parallel stack structure of capacitors. The high voltage output device includes a substrate includes a capacitor element and a pillar structure provided on an upper surface of the substrate. The substrate includes a first electrode and a second electrode, which have different potentials from each other. The capacitor element is connected to at least one of the first electrode and the second electrode.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 21, 2024
    Applicant: JEISYS MEDICAL INC.
    Inventors: Seung Wook LEE, Seung In KANG, Yeong Gi JEON, Si Youn KIM, Kyu Young SEO, Min Young KIM, Won Ju YI, Dong Hwan KANG
  • Publication number: 20230227465
    Abstract: The present invention provides a related substance of (3S)-3-(4-(3-(1,4-dioxaspiro[4,5]dec-7-en-8-yl)benzyloxy)phenyl)hex-4-inoic acid, and a method for evaluating the quality of (3S)-3-(4-(3-(1,4-dioxaspiro[4,5]dec-7-en yl)benzyloxy)phenyl)hex-4-inoic acid using the same. According to the present invention, it is possible to evaluate the quality, stability and the like of a pharmaceutical composition comprising (3S)-3-(4-(3-(1,4-dioxaspiro[4,5]dec-7-en-8-yl)benzyloxy)phenyl)hex-4-inoic acid using a compound of Chemical Formula 2 or a salt thereof as a reference standard.
    Type: Application
    Filed: January 29, 2021
    Publication date: July 20, 2023
    Inventors: Jeong Un Hwang, Kyu Hwan Lee, Eun Young Kim, Su Kyoung Choi
  • Publication number: 20230200183
    Abstract: An organic light emitting display device includes a substrate including first to third sub-pixels; first to third light emitting diodes disposed on the substrate and respectively located in the first to third sub-pixels; and a transmittance control layer, light emitted from the first to third light emitting diodes being transmitted toward the transmittance control layer, the transmittance control layer including a lens-shaped transparent pattern and a gray pattern, wherein the gray pattern is located to cover the lens-shaped transparent pattern, and has different thicknesses according to a thick of the transparent pattern.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Su-Jin CHANG, Kyu-Hwan LEE, Ji-Su YOON
  • Publication number: 20230051318
    Abstract: The present invention relates to a compound represented by Formula 1 wherein A, B, L, X, and R1 to R6 are as described herein, or a pharmaceutically acceptable salt thereof, which serves as a GLP-1 receptor agonist and may be useful in the prevention or treatment of a disease associated with GLP-1 activity.
    Type: Application
    Filed: December 1, 2020
    Publication date: February 16, 2023
    Inventors: Han Kyu LEE, Jeong-Un HWANG, Kyu-Hwan LEE, Hyung-Ho CHOI, Jung-In JANG, Hyuck-Joo LEE, Seung-Tae KANG, Hyun-Ho YOON, Neul HA, Hyun-Hwa LA, Jin Woong KIM, Dae Hoon KIM, Myoung Ki BAEK
  • Publication number: 20220282386
    Abstract: The present invention provides a water electrolysis electrode including a catalyst having a three-dimensional nanosheet structure with a low overvoltage and excellent catalytic activity, a method for producing the same, and a water electrolysis device including the same. The water electrolysis electrode according to the present invention includes a catalyst layer, which includes a composite metal oxide and has a three-dimensional nanosheet structure, and an electrode substrate. The method for producing a water electrolysis electrode according to the present invention comprises steps of: immersing an electrode substrate in an electrolyte solution containing metal oxide precursors; electrodepositing composite metal hydroxides by applying a voltage to the electrode substrate; and forming a composite metal oxide by annealing the electrode substrate. The water electrolysis device according to the present invention includes the water electrolysis electrode according to the present invention as an anode.
    Type: Application
    Filed: October 16, 2019
    Publication date: September 8, 2022
    Inventors: Sung Mook CHOI, Yoo Sei PARK, Myeong Je JANG, Ju Chan YANG, Kyu Hwan LEE, Jeong Hun LEE, Sung Min PARK, Jae Hoon JEONG
  • Publication number: 20220213051
    Abstract: The present invention relates to a novel crystal form of a 3-(4-(benzyloxy)phenyl)hex-4-inoic acid derivative, a preparation method therefore and a pharmaceutical composition comprising same. A crystal form I of a compound of chemical formula 1, according to the present invention, exhibits more excellent physicochemical properties such as thermal stability, static electricity-inducing capability, compressibility, etc. compared to an amorphous form or a crystal form II, and thus is especially useful for preparation and long-term storage.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 7, 2022
    Inventors: Jeong Un HWANG, Jin Woong KIM, Kyu Hwan LEE, Eun Young KIM, Su Kyoung CHOI
  • Patent number: 10821110
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating metabolic diseases, in which a novel 3-(4-(benzyloxy)phenyl)hex-4-inoic acid derivative and at least another active ingredient, which is selected from the group consisting of dipeptidyl peptidase-4 (DPPIV) inhibitor-based, sulfonylurea-based, thiazolidinedione (TZD)-based, biguanide-based, and sodium/glucose cotransporter 2 (SGLT2) inhibitor-based drugs, may be administered in combination or in the form of a composite preparation.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 3, 2020
    Assignee: HYUNDAI PHARM CO., LTD.
    Inventors: Jin Yang, Jin Woong Kim, Han Kyu Lee, Jae Hyun Kim, Chang Mo Son, Kyu Hwan Lee, Hyung-Ho Choi, Daehoon Kim, Tae-Young Ha, Jaekeol Rhee
  • Patent number: 10802334
    Abstract: A liquid crystal display device includes a liquid crystal panel and a backlight unit under the liquid crystal panel and including a circuit board; a plurality of LED packages mounted on the circuit board; a partition wall on the circuit board and surrounding at least one LED package; an encapsulation member covering the plurality of LED packages and the partition wall; and a reflective pattern sheet over the encapsulation member and including a plurality of first reflective patterns corresponding to the plurality of LED packages, respectively, wherein a height of the partition wall is equal to or greater than a height of the at least one LED package and smaller than or equal to a thickness of the encapsulation member.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 13, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Hwi Kim, Ki-Seong Kim, Hyun-Min Park, Kyu-Hwan Lee
  • Patent number: 10775670
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel having a red pixel, a green pixel, and a blue pixel; and a backlight unit configured to emit light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer configured to convert the first color light into a second color light such that red light and green light are spatially separated; and an optical sheet which diffuses or condenses the second color light.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 15, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chang-Yul Moon, Ji-Su Yoon, Kyu-Hwan Lee
  • Patent number: 10768480
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel including a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer which is configured to convert the first color light into a second color light; an optical sheet which diffuses or condenses the second color light; and an air gap formed between the color conversion layer and the optical sheet.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Se-Hyun Park, Min-Jae Kang, Ji-Su Yoon, Kyu-Hwan Lee
  • Patent number: 10723699
    Abstract: The present invention relates to a cyclohexene derivative, a preparation method thereof, and a pharmaceutical composition for preventing or treating metabolic disease containing the cyclohexene derivative as an active ingredient. The cyclohexene derivative according to the present invention increases the intracellular activity of cyclic adenosine monophosphate (cAMP) by activating G protein-coupled receptor 119 (GPR-119) and simultaneously exhibits weight loss and hypoglycemic effects by inducing the release of glucagon-like peptide-1 (GLP-1), which is a neuroendocrine protein, and thus can be useful as a pharmaceutical composition for preventing or treating metabolic diseases such as obesity, type 1 diabetes, type 2 diabetes, inadequate glucose tolerance, insulin resistance, hyperglycemia, hyperlipidemia, hypertriglyceridemia, hypercholesterolemia, dyslipidemia and syndrome X.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 28, 2020
    Assignee: HYUNDAI PHARM CO., LTD.
    Inventors: Jin Yang, Jin Woong Kim, Han Kyu Lee, Jae Hyun Kim, Chang Mo Son, Kyu Hwan Lee, Jeong Un Hwang, Hyung Ho Choi, Dae Hoon Kim, Jae Keol Rhee
  • Patent number: 10627674
    Abstract: The present disclosure relates to a backlight unit and a liquid crystal display device. The liquid crystal display device includes a display panel including a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel, wherein the backlight unit includes: a light source providing a first color light; a color conversion layer disposed on the light source and converting a part of the first color light into a second color light; an optical sheet between the display panel and the color conversion layer; and an air gap between the color conversion layer and the optical sheet.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: April 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Je-Beom Park, Ji-Su Yoon, Min-Jae Kang, Kyu-Hwan Lee
  • Patent number: 10564475
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel having a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer which is disposed on the light source and converts the first color light into a second color light; an optical sheet which diffuses or condenses the second color light; and an air gap formed between the color conversion layer and the optical sheet.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: February 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Yul Moon, Je-Beom Park, Se-Hyun Park, Ji-Su Yoon, Kyu-Hwan Lee
  • Publication number: 20190129253
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel having a red pixel, a green pixel, and a blue pixel; and a backlight unit configured to emit light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer configured to convert the first color light into a second color light such that red light and green light are spatially separated; and an optical sheet which diffuses or condenses the second color light.
    Type: Application
    Filed: September 28, 2018
    Publication date: May 2, 2019
    Inventors: Chang-Yul Moon, Ji-Su Yoon, Kyu-Hwan Lee
  • Publication number: 20190129250
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel including a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer which is configured to convert the first color light into a second color light; an optical sheet which diffuses or condenses the second color light; and an air gap formed between the color conversion layer and the optical sheet.
    Type: Application
    Filed: October 12, 2018
    Publication date: May 2, 2019
    Inventors: Se-Hyun Park, Min-Jae Kang, Ji-Su Yoon, Kyu-Hwan Lee
  • Publication number: 20190129254
    Abstract: The present disclosure is directed to a liquid crystal display device including a display panel having a red pixel, a green pixel, and a blue pixel; and a backlight unit which emits light to the display panel. The backlight unit includes a light source which outputs a first color light; a color conversion layer which is disposed on the light source and converts the first color light into a second color light; an optical sheet which diffuses or condenses the second color light; and an air gap formed between the color conversion layer and the optical sheet.
    Type: Application
    Filed: September 25, 2018
    Publication date: May 2, 2019
    Inventors: Chang-Yul Moon, Je-Beom Park, Se-Hyun Park, Ji-Su Yoon, Kyu-Hwan Lee
  • Patent number: 10276873
    Abstract: Provided are a current collector for a battery, including: a base material; adhesive layers positioned on the base material; and metal mesh layers positioned on the adhesive layers, in which the metal mesh layer includes a plurality of metal mesh patterns, and holes positioned between the metal mesh patterns, and a method of manufacturing the same. An active material is applied onto the metal mesh layer through the holes of the metal mesh layer, and thus a contact area of the metal mesh layer and the active material is increased, so that it is possible to restrict the active material from being deintercalated from the current collector and improve a cycle lifespan property of a battery.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: April 30, 2019
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Man Kim, Joo Yul Lee, Sang Yeoul Lee, Yong Soo Jeong, Do Yon Chang, Kyu Hwan Lee, Cheol Nam Yang, Chang Rae Lee, Seong Bong Yim, Dong Chan Lim, Jae Hong Lim, Young Sup Song, Sung Mo Moon, Su Sub Cha