Patents by Inventor Hee Young Choi

Hee Young 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).

  • Publication number: 20240130199
    Abstract: A display device includes a first substrate and a second substrate facing each other; and a filling layer disposed between the first substrate and the second substrate. The first substrate comprises a support substrate comprising a display area in which emission areas associated with sub-pixels, are arranged; a light-emitting element layer disposed on one surface of the support substrate; and an encapsulation layer disposed on the light-emitting element layer. The encapsulation layer comprises a first inorganic layer covering the light-emitting element layer; an organic layer disposed on the first inorganic layer and overlapping the light-emitting element layer; and a second inorganic layer disposed on the first inorganic layer and covering the organic layer. A thickness of the first inorganic layer is smaller than a thickness of the second inorganic layer.
    Type: Application
    Filed: June 19, 2023
    Publication date: April 18, 2024
    Inventors: Gyu Min KIM, Jong Oh KIM, Jong Hyun PARK, Min Soo SEOL, Hee Dong CHOI, Tae Young HAM
  • Publication number: 20240109987
    Abstract: The present disclosure relates to a polyethylene resin composition capable of improving transparency and moisture barrier properties without deterioration in physical properties of a film, and a film including the same, wherein the polyethylene resin composition comprises a nucleating agent and a lubricant both containing a cation of a same metal selected from Group 2 or Group 12 metals.
    Type: Application
    Filed: August 31, 2022
    Publication date: April 4, 2024
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Hyun Mook Jeong, Dodam Kim, Yi Young Choi, Hee Su Oh
  • Publication number: 20240112938
    Abstract: A method and apparatus for aligning a wafer using a laser scanner, and a semiconductor transfer device are provided. The method includes a laser irradiation operation of irradiating a laser toward the wafer using a laser scanner disposed on a rear side or a lower side of the wafer and obtaining an image, a dataset acquisition operation of obtaining location information of at least three wafer edges by using a distance corresponding to a laser irradiation direction to a wafer edge in the image, a calculation operation of calculating a center point of the wafer by using the obtained location information of the wafer edge, and a detection operation of detecting whether a calculated center point is within a preset tolerance range.
    Type: Application
    Filed: April 13, 2023
    Publication date: April 4, 2024
    Inventors: Hee Jae BYUN, Kyo Bong KIM, Chan Young CHOI, Wan Hee JEONG, Sang Oh KIM
  • Publication number: 20240106000
    Abstract: The present invention relates to an electrolyte composition for lithium metal batteries, comprising a) at least one fluorinated di-ether containing from 4 to 10 carbon atoms, represented by Formula (I) of R1—O—R2—O—R3, wherein each R1 and R3 is independently a fluorinated alkyl group, and R2 is an optionally fluorinated alkyl group, represented by Formula (II) of CaFbHc, wherein a is an integer from 1 to 6, b+c is an integer from 2 to 10, and if b is 0, R1 and R3 independently have no H; b) at least one non-fluorinated ether; and c) at least one lithium salt, wherein a) the fluorinated di-ether is in an amount of at least 50% by volume (vol %), based on the total volume of a) the fluorinated di-ether and b) the non-fluorinated ether. The present invention also relates to a lithium metal battery comprising a negative electrode comprising lithium metal; a positive electrode; a separator; and an electrolyte composition according to the present invention.
    Type: Application
    Filed: November 3, 2021
    Publication date: March 28, 2024
    Applicant: Solvay SA
    Inventors: Ji-Ae Choi, Vito Tortelli, Guillaume Müller, Lawrence Alan Hough, Marco Galimberti, So-Young Lee, Hee-Sung Choi
  • Patent number: 11934754
    Abstract: Disclosed is a magnetic parameter value estimation method using deep learning, the magnetic parameter value estimation method including creating a simulated magnetic domain image corresponding to a spin configuration of a two-dimensional magnetic system created through computer simulation, modeling a deep neural network using the simulated magnetic domain image, and estimating a magnetic parameter value of an observed magnetic domain image using the modeled deep neural network.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: March 19, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Hee Young Kwon, Jun Woo Choi
  • Patent number: 9745437
    Abstract: This invention relates to a method of preparing a microcellular polyurethane elastomer by reacting naphthalene diisocyanate with a polyol to prepare a prepolymer containing an isocyanate (NCO) group, followed by mixing the prepared polyurethane prepolymer with a plasticizer, water, an emulsifier and the like, and then foaming the prepolymer blend to prepare a polyurethane elastomer, wherein the emulsifier is a mixture of (a) a compound selected from the group consisting of 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4?-diphenylmethane diisocyanate, hexamethylene diisocyanate, 1,4?-cyclohexane diisocyanate and mixtures thereof, and (b) a C2-10 hydrocarbon having a molecular weight of 500 or less with two to four hydroxyl groups, or mixtures thereof. The method of the invention can optimize the viscosity and properties of the prepolymer resulting from the reaction of naphthalene diisocyanate with a polyol, thus improving processability.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 29, 2017
    Assignee: SKC Co. Ltd.
    Inventors: Jae Soo Yang, Hee Young Choi, Jeongmoo Kim, Joon Mo Lee
  • Publication number: 20140374976
    Abstract: This invention relates to a method of preparing a microcellular polyurethane elastomer by reacting naphthalene diisocyanate with a polyol to prepare a prepolymer containing an isocyanate (NCO) group, followed by mixing the prepared polyurethane prepolymer with a plasticizer, water, an emulsifier and the like, and then foaming the prepolymer blend to prepare a polyurethane elastomer, wherein the emulsifier is a mixture of (a) a compound selected from the group consisting of 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4?-diphenylmethane diisocyanate, hexamethylene diisocyanate, 1,4?-cyclohexane diisocyanate and mixtures thereof, and (b) a C2-10 hydrocarbon having a molecular weight of 500 or less with two to four hydroxyl groups, or mixtures thereof. The method of the invention can optimize the viscosity and properties of the prepolymer resulting from the reaction of naphthalene diisocyanate with a polyol, thus improving processability.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 25, 2014
    Inventors: Jae Soo Yang, Hee Young Choi, Jeongmoo Kim, Joon Mo Lee