Patents by Inventor Chang-Hun Lee

Chang-Hun 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).

  • Publication number: 20230343918
    Abstract: The present technology relates to an electrode manufacturing system, and an electrode manufacturing method using the same. According to the present technology, it is possible to uniformly second-coating an electrode slurry as an electrode current collector, which has gone through electrode slurry first coating and drying processes, passes through a heat pipe guide roller.
    Type: Application
    Filed: October 8, 2021
    Publication date: October 26, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Woo Choi, Sang Hoon Choy, Dong Hun Song, Shin Wook Jeon, Chang Hun Lee
  • Publication number: 20230335686
    Abstract: A color conversion panel includes a plurality of banks which partition a first emission area, a second emission area and a third emission area of the color conversion panel at which light of different colors are respectively emitted, a color conversion layer which color-converts light, in the first emission area, and a transmission layer which transmits light without color conversion, in the second emission area and the third emission area.
    Type: Application
    Filed: February 10, 2023
    Publication date: October 19, 2023
    Inventors: Sun-Kyu JOO, Keun Chan OH, Min-Jae KIM, Jae Cheol PARK, DOKYUNG YOUN, Yeo Geon YOON, Chang-Hun LEE, Woo-Man JI
  • Publication number: 20230323043
    Abstract: Provided is a method for preparing superabsorbent polymer, which includes conducting first surface crosslinking of a base resin powder while raising the temperature to a first temperature, in the presence of a first surface crosslinking agent; conducting second surface crosslinking of the first surface crosslinked base resin powder at a second temperature. According to the method of the present technology, surface crosslinking strength of the resulting superabsorbent polymer is increased, thus enabling preparation of superabsorbent polymer having little or no decline in absorbency under load even after anti-caking agent treatment.
    Type: Application
    Filed: October 28, 2021
    Publication date: October 12, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Chang Hun Lee, Jiyoon Jeong, Jung Eun Kim
  • Publication number: 20230317454
    Abstract: The present invention is related to a method for fabricating a semiconductor device capable of forming fine patterns. The method for fabricating the semiconductor device according to the present invention may comprise forming an etch mask layer on an etch target layer; forming a spacer structure in which first spacers and second spacers are alternately disposed and spaced apart from each other on the etch mask layer; forming first spacer lines through selective etching of the first spacers; forming second spacer lines through selective etching of the second spacers; and etching the etch target layer to form a plurality of fine line patterns using the first and second spacer lines.
    Type: Application
    Filed: June 5, 2023
    Publication date: October 5, 2023
    Inventors: Ji Hoon KIM, Jae Han PARK, Chang Hun LEE
  • Publication number: 20230309358
    Abstract: A display device includes a first substrate including first to third light emitting areas, and a light blocking area surrounding first to third light emitting area, light emitting elements disposed on the first to third light emitting areas of a first substrate, a bank disposed on light emitting elements, where first to third openings exposing light emitting elements are defined in the bank, a first color conversion pattern disposed in the first opening to convert a light of a first wavelength into a light of a second wavelength, a second color conversion pattern disposed in the second opening to convert the light of the first wavelength into a light of a third wavelength, a light transmission pattern disposed in the third opening to transmit the light of the first wavelength, and a column spacer disposed on the bank and having a same composition as the light transmission pattern.
    Type: Application
    Filed: November 16, 2022
    Publication date: September 28, 2023
    Inventors: SUN-KYU JOO, KEUNCHAN OH, MIN-JAE KIM, JAE CHEOL PARK, DOKYUNG YOUN, YEOGEON YOON, CHANG-HUN LEE, WOO-MAN JI
  • Publication number: 20230285336
    Abstract: The present invention relates to a composition, a cosmetic composition, and a food composition for preventing or treating skin diseases caused by genetic mutation comprising ferulic acid, an analog thereof or a salt thereof.
    Type: Application
    Filed: October 5, 2020
    Publication date: September 14, 2023
    Applicants: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Hyeung Jin JANG, Chang-Hun LEE, Won Suk CHUNG
  • Patent number: 11710635
    Abstract: The present invention is related to a method for fabricating a semiconductor device capable of forming fine patterns. The method for fabricating the semiconductor device according to the present invention may comprise forming an etch mask layer on an etch target layer; forming a spacer structure in which first spacers and second spacers are alternately disposed and spaced apart from each other on the etch mask layer; forming first spacer lines through selective etching of the first spacers; forming second spacer lines through selective etching of the second spacers; and etching the etch target layer to form a plurality of fine line patterns using the first and second spacer lines.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: July 25, 2023
    Assignee: SK hynix Inc.
    Inventors: Ji Hoon Kim, Jae Han Park, Chang Hun Lee
  • Publication number: 20230189610
    Abstract: A display device includes a lower panel including a display element layer and an encapsulation layer disposed on the display element layer, an upper panel including a partition pattern including a first opening and a second opening, and a light control layer including a light control part disposed in the first opening, a protective layer disposed between the upper panel and the lower panel to overlap at least one of the first opening or the second opening and the partition pattern in a plan view, and a filling layer disposed between the protective layer and the lower panel.
    Type: Application
    Filed: September 16, 2022
    Publication date: June 15, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: DOKYUNG YOUN, KEUNCHAN OH, SUN-KYU JOO, MIN-JAE KIM, JAE CHEOL PARK, CHANG-HUN LEE, WOO-MAN JI
  • Publication number: 20230170458
    Abstract: An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. I system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.
    Type: Application
    Filed: November 26, 2021
    Publication date: June 1, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Chang Hun Lee, Seong Wook Hong, Dong Hun Song, Sang Hoon Choy, Shin Wook Jeon
  • Publication number: 20230102623
    Abstract: A color conversion substrate and a display device including the same are provided, the color conversion substrate including a substrate, color filter layers on the substrate, and arranged in a first direction, and in a second direction intersecting the first direction, a bank layer defining openings overlapping the color filter layers, and including a first bank part extending in the second direction, and second bank parts extending in the first direction from a side of the first bank part, and wavelength conversion layers in the openings of the bank layer, wherein the first bank part includes a recess recessed inwardly from a part of a second side opposite a first side on which the second bank parts are located.
    Type: Application
    Filed: June 16, 2022
    Publication date: March 30, 2023
    Inventors: Kang Seob JEONG, Tae Hoon KIM, Joon Hyung PARK, Min Hee KIM, Sim Bum YUK, Do Kyung YOUN, Chang Hun LEE
  • Publication number: 20230021383
    Abstract: Provided herein is a 3D printing system and related compositions, and method of using such, that can produce a polymeric microfiber having embedded microspheres encapsulating an active agent with micron precision and high spatial and temporal resolution.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 26, 2023
    Inventor: Chang Hun Lee
  • Publication number: 20230016966
    Abstract: The display panel includes an upper display substrate including a plurality of pixel areas and a light blocking area, a lower display substrate. The upper display substrate includes a base substrate, a barrier part overlapping the light blocking area and disposed on the base substrate, a light blocking layer including a first light blocking portion disposed on the barrier part and a second light blocking portion disposed on the same layer as the barrier part to respectively overlap the pixel areas, a reflection layer including a first reflection portion disposed on the first light blocking portion and a second reflection portion disposed on the second light blocking portion, and a light control layer overlapping the pixel areas and disposed on the reflection layer. A plurality of openings passing through the second light blocking portion and the second reflection portion are defined in each of the pixel areas.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 19, 2023
    Inventors: CHANG-HUN LEE, Min-Jae KIM, Min-Hee KIM, Taehoon KIM, Kyunghae PARK, Joon-Hyung PARK, Danbi YANG, Hanjun YU, DoKyung YOUN
  • Publication number: 20220414759
    Abstract: The present invention relates to a sales system that can increase transparency in cultivation by disclosing various situations occurring in the cultivation process to consumers, comprising: a crop image server that receives and stores images of crop grown in a crop production area; a reservation server that posts sales information of the crop using the images of crop stored in the crop image server and receives presale orders for the crop from a buyer terminal; a growth image transmission server that transmits the images of the reserved crop to the buyer terminal; and a pricing server that calculates the expected yield in consideration of risks that may occur in the process of growing the crop and calculates the unit price of the crop.
    Type: Application
    Filed: December 6, 2019
    Publication date: December 29, 2022
    Applicant: GLOBAL CODING RESEARCH CO., LTD
    Inventor: Chang Hun LEE
  • Publication number: 20220392961
    Abstract: A color conversion member includes: a first sub-partition part having a width which decreases from a first surface toward a second surface; a second sub-partition part disposed on the first sub-partition part and having a width which increases from the first sub-partition part toward the second surface; and a partition part which is disposed on the second sub-partition part and includes a liquid-repellent part including a liquid-repellent additive.
    Type: Application
    Filed: April 29, 2020
    Publication date: December 8, 2022
    Inventors: Min-Hee KIM, Sunyoung KWON, Min-Jae KIM, Taehoon KIM, Kyunghae PARK, Joon-Hyung PARK, Danbi YANG, Hanjun YU, Dokyung YOUN, Chang-Hun LEE
  • Publication number: 20220372094
    Abstract: A peptide is described herein that has: (i) a simple structure compared to existing natural human erythropoietin, thus capable of easily passing through a tissue-blood barrier, (ii) excellent bioactivity with respect to cell-protecting activity, (iii) a low manufacturing cost, thus being economically advantageous, and (iv) no side effects on cell proliferation. Also, a pharmaceutical composition comprising the erythropoietin-derived peptide described herein as an active ingredient is described. The pharmaceutical composition may be used for preventing or treating cell damage-related illnesses, such as stroke, mechanical damage or ischemic damage to the nervous system, myocardial infarction, retinal damage, and diabetes. Also, the described pharmaceutical composition may be used for preventing cell damage.
    Type: Application
    Filed: July 7, 2022
    Publication date: November 24, 2022
    Inventors: Che il MOON, Seung Jun YOO, Chang-Hun LEE, So Yeon KIM, Deok Ho LEE
  • Patent number: 11469287
    Abstract: The display panel includes an upper display substrate including a plurality of pixel areas and a light blocking area, a lower display substrate. The upper display substrate includes a base substrate, a barrier part overlapping the light blocking area and disposed on the base substrate, a light blocking layer including a first light blocking portion disposed on the barrier part and a second light blocking portion disposed on the same layer as the barrier part to respectively overlap the pixel areas, a reflection layer including a first reflection portion disposed on the first light blocking portion and a second reflection portion disposed on the second light blocking portion, and a light control layer overlapping the pixel areas and disposed on the reflection layer. A plurality of openings passing through the second light blocking portion and the second reflection portion are defined in each of the pixel areas.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: October 11, 2022
    Inventors: Chang-Hun Lee, Min-Jae Kim, Min-Hee Kim, Taehoon Kim, Kyunghae Park, Joon-Hyung Park, Danbi Yang, Hanjun Yu, DoKyung Youn
  • Patent number: 11466128
    Abstract: A superabsorbent polymer having optimized gel strength and exhibiting an improved absorption rate without increasing a specific surface area by chemical foaming or a physical method, and a preparation method thereof, are provided.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: October 11, 2022
    Inventors: Yong Hun Lee, Mookon Kim, Dae Woo Nam, Hyemi Nam, Sang Gi Lee, Chang Hun Lee, Jiyoon Jeong, Chang Hun Han
  • Publication number: 20220285447
    Abstract: A display device and method of manufacturing same includes: a display panel having a pixel area and a peripheral area adjacent to the pixel area, a light control layer disposed on the display panel and at least partially overlapping the pixel area, a light blocking portion at least partially overlapping the peripheral area, and a protective layer disposed between the light control layer and the light blocking portion.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 8, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Keunwoo PARK, Min-Jae KIM, Min-Hee KIM, Taehoon KIM, DoKyung YOUN, Chang-Hun LEE
  • Publication number: 20220270878
    Abstract: The present invention is related to a method for fabricating a semiconductor device capable of forming fine patterns. The method for fabricating the semiconductor device according to the present invention may comprise forming an etch mask layer on an etch target layer; forming a spacer structure in which first spacers and second spacers are alternately disposed and spaced apart from each other on the etch mask layer; forming first spacer lines through selective etching of the first spacers; forming second spacer lines through selective etching of the second spacers; and etching the etch target layer to form a plurality of fine line patterns using the first and second spacer lines.
    Type: Application
    Filed: August 27, 2021
    Publication date: August 25, 2022
    Inventors: Ji Hoon KIM, Jae Han PARK, Chang Hun LEE
  • Patent number: 11407848
    Abstract: A method is provided for preparing a super absorbent polymer capable of exhibiting an excellent absorption rate by including a uniform porous structure through a simple and economical process. The method includes: performing a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer to form a hydrogel polymer; drying and pulverizing the hydrogel polymer; classifying the pulverized polymer into polymer particles having a particle size of at least 10 to 150 ?m, polymer particles having a particle size of 150 to 200 ?m, and polymer particles having a particle size of 200 to 850 ?m to form a base polymer powder having a particle size of 150 to 850 ?m; and surface-crosslinking the base polymer powder, wherein in the crosslinking polymerization step, the foaming polymerization proceeds in the presence of polymer particles having an average particle size of 10 to 200 ?m obtained in the classifying step and an anionic surfactant.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 9, 2022
    Inventors: Moo Kon Kim, Sang Gi Lee, Hye Mi Nam, Chang Hun Lee, Tae Yun Kim