Patents by Inventor Hyeon Choi

Hyeon 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: 20230178798
    Abstract: A lithium metal halide-based solid electrolyte for an all-solid-state battery with excellent lithium ion conductivity, includes a compound represented by the following Chemical Formula 1. Li6-a(M11-bM2b)X6??[Chemical Formula 1] wherein M1 comprises a group 3 element, a group 4 element or a group 13 element, M2 comprises silicon (Si), germanium (Ge), tin (Sn) or lead (Pb), X comprises chlorine (Cl), bromine (Br) or iodine (I), 0?b?1, and a is a number satisfying the following Mathematical Formula 1.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 8, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Industry-University Cooperation Foundation Hanyang University ERICA Campus
    Inventors: Yong Jun Jang, Sang Heon Lee, Sang Soo Lee, So Young Kim, Seong Hyeon Choi, Sun Ho Choi, Dae Yeon Hwang, Mun Seok Chae, Ho Cheol Shin, Kwang Jin Kim, Sa Heum Kim, In Woo Song, Sang Uck Lee, Byeong Sun Jun, Ji Hoon Kim
  • Publication number: 20230175153
    Abstract: A method of manufacturing an electrode for water electrolysis having high catalytic activity for a hydrogen evolution reaction by forming a catalyst layer in which molybdenum oxide and a Ni-Mo-based alloy are mixed and an electrode for water electrolysis manufactured thereby are described. The method includes preparing catalyst materials including a solvent, a nickel (Ni) precursor, a molybdenum (Mo) precursor, and sodium citrate, preparing an electrode base material, obtaining a plating solution by dissolving the nickel (Ni) precursor, the molybdenum (Mo) precursor, and the sodium citrate in the solvent, and forming a catalyst layer on the surface of the electrode base material by immersing the electrode base material in the plating solution and applying an electric current.
    Type: Application
    Filed: October 17, 2022
    Publication date: June 8, 2023
    Inventors: Seung Hyeon Choi, Hoon Mo Park, Min Ju Park, Se Young Lee, Eun Ae Cho, Dong Hoon Song, Hyo Won Kim, Yong Keun Kwon, Jeong Han Roh
  • Patent number: 11654416
    Abstract: The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 23, 2023
    Inventors: Sung Soo Park, Gi Cheul Kim, Ju Eun Kim, Hyeon Choi, Hyo Sook Joo, Sung Hyun Park, Hee Jung Choi, Ki Youl Yoon
  • Publication number: 20230150815
    Abstract: The present disclosure relates to a hydrogen reforming system including a reforming part configured to extract hydrogen from a source gas, and a metal hydride compressor configured to be operated by waste heat discharged from the reforming part and to compress the hydrogen discharged from the reforming part, thereby obtaining an advantageous effect of combining the function of two machines and improving energy efficiency.
    Type: Application
    Filed: June 21, 2022
    Publication date: May 18, 2023
    Inventors: Ji Hye Park, Seung Hyeon Choi
  • Publication number: 20230145939
    Abstract: Provided according to one embodiment of the present invention is a marker composition for diagnosis or prognosis of esophageal cancer or thymic carcinoma, comprising an exosome overexpressing GRIP and coiled-coil domain-containing protein 2 (GCC2).
    Type: Application
    Filed: April 5, 2021
    Publication date: May 11, 2023
    Inventors: Hyun Koo Kim, Byeong Hyeon Choi, Yuhua Quan, Jiyun Rho
  • Publication number: 20230141308
    Abstract: An embodiment of the present disclosure relates to a hydrogen supply system including a water electrolysis stack configured to produce hydrogen by electrochemically decomposing water, and a metal hydride compressor connected to the water electrolysis stack and configured to treat the hydrogen before supplying the hydrogen to a supply destination, thereby obtaining an advantageous effect of simplifying a structure and improving spatial utilization and a degree of design freedom.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 11, 2023
    Inventors: Seung Hyeon Choi, Ji Hye Park
  • Publication number: 20230107670
    Abstract: The present disclosure relates to a super absorbent polymer film and a preparation method of the same. Specifically, it relates to a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance, flexibility and elasticity while having little change in the shape of products. In addition, the super absorbent polymer film of the present disclosure is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: March 23, 2021
    Publication date: April 6, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Hyosook Joo, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi
  • Publication number: 20230108529
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance while having excellent flexibility and mechanical properties. In addition, the super absorbent polymer film is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: July 26, 2021
    Publication date: April 6, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi, Se Yeol Park
  • Publication number: 20230101276
    Abstract: Provided is an electronic device including a first lower material film, a first upper material film on the first lower material film, a first two-dimensional electron gas between the first lower material film and the first upper material film, a second lower material film on the first upper material film, a second upper material film on the second lower material film, a second two-dimensional electron gas between the second lower material film and the second upper material film, a source electrode on the second upper material film, a drain electrode on the second upper material film, a gate insulating film on the second upper material film, and a gate electrode on the gate insulating film.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Tae Joo PARK, Sang Woon LEE, Tae Jun SEOK, Ji Hyeon CHOI
  • Publication number: 20230097366
    Abstract: Provided is an electronic device including a lower material film, an upper material film on the lower material film, a two-dimensional electron gas between the lower material film and the upper material film, a source electrode on the upper material film, a drain electrode on the upper material film, and a gate electrode on the upper material film, wherein the upper material film includes a first portion in contact with the source electrode, a second portion in contact with the gate electrode, and a third portion in contact with the drain electrode, wherein a thickness of the second portion of the upper material film is greater than a thickness of the first portion of the upper material film and a thickness of the third portion of the upper material film, wherein the voltage drop and the threshold voltage are adjusted by adjusting the thicknesses of the first to third portions of the upper material film.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Tae Joo PARK, Sang Woon LEE, Tae Jun SEOK, Ji Hyeon CHOI
  • Publication number: 20230089009
    Abstract: The present disclosure relates to a polymer film, a preparation method of the same, and a polymer film laminate. Specifically, it relates to a new type of polymer film, which is thin and exhibits excellent absorption performance while having excellent flexibility and mechanical properties. In addition, the polymer film is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced. In addition, the present disclosure also relates to a preparation method of the above-described polymer film, and a polymer film laminate including the new type of polymer film.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 23, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi, Se Yeol Park
  • Patent number: 11607433
    Abstract: The present invention relates to an Agathobaculum sp. strain having prophylactic or therapeutic effects on autism spectrum disorders, and use thereof. When the intestinal microorganism Agathobaculum sp. strain of the present invention was orally administered to valproic acid (VPA)-induced autism model mice and BTBR autism model mice, the effects of remarkably improving autism spectrum disorders including repetitive behaviors, hyperactivity, social deficiency and cognitive/memory dysfunction of the mice were observed, as compared with a non-treated control. Accordingly, it may be usefully applied to foods, drugs, or feeds for preventing or treating autism spectrum disorders, and thus is very useful in the relevant industries.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 21, 2023
    Assignee: HEALTHBIOME
    Inventors: Byoung Chan Kim, Kyoung Shim Kim, Chul Ho Lee, Dong Ho Chang, Yong-Hoon Kim, Jung-Ran Noh, Dong Hui Choi, Jung Hwan Hwang, Jun Go, Jaehun Kim, Hye-Yeon Park, Yun-Jung Seo, Young-Kyoung Ryu, In-Bok Lee, Young Keun Choi, Jung-Hyeon Choi
  • Publication number: 20230085066
    Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 16, 2023
    Inventors: Dong Hyun KIM, Houng Sik YOO, Jin Myung CHA, Gye Min KWON, Hyun Sik CHAE, Dong Hyun CHO, Sang Hoon CHOY, Hyeon CHOI, Hyung Suk CHO
  • Publication number: 20230071674
    Abstract: The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: March 23, 2021
    Publication date: March 9, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyosook Joo, Hyeon Choi, Se Yeol Park
  • Patent number: 11600841
    Abstract: A separator assembly for a fuel cell includes a first separator having tunnel-shaped fastening parts formed on a plurality of points of an edge area thereof, and a second separator having insert parts formed at positions corresponding to each of the fastening parts of the first separator on an edge area thereof to be inserted into the fastening parts, wherein the insert parts of the second separator are inserted into the fastening parts of the first separator to assemble the first separator and the second separator.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: March 7, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Hyeon Choi, Woo Chul Shin
  • Publication number: 20230067846
    Abstract: The present disclosure relates to a super absorbent polymer film and a preparation method of the same. Specifically, it relates to a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance and high tensile strength. In addition, the super absorbent polymer film of the present disclosure is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.
    Type: Application
    Filed: March 23, 2021
    Publication date: March 2, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Seongkyun Kang, Yu Jin Kim, Gicheul Kim, Hyeon Choi, Se Yeol Park
  • Patent number: 11581531
    Abstract: A negative electrode slurry and a method of preparing the same. The negative electrode slurry includes lithium titanium oxide (LTO), a carboxylic acid-containing polymer dispersant, a binder, and an aqueous solvent. The carboxylic acid-containing polymer dispersant has a weight average molecular weight (Mw) of 2,500 g/mol to 500,000 g/mol and is present in an amount of 1.5 parts by weight to 20 parts by weight with respect to 100 parts by weight of the lithium titanium oxide.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: February 14, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Dong Hyun Kim, Houng Sik Yoo, Hyeon Choi
  • Patent number: 11568785
    Abstract: Disclosed is a display device for increasing an aperture ratio of a transmissive part. The display device includes data lines overlapping with one or more of the pixels emitting light to display an image. Each pixel includes subpixels arranged within the pixel along a same direction as the data lines. The display device further includes transmissive parts arranged in the first direction and corresponding to adjacent pixels. In addition to the data lines overlapping the pixels, the display device may include power lines and reference voltage lines parallel with the data lines and overlapping with the pixels. The display device may include scan lines and sensing lines arranged to cross the transmissive parts and data lines. As a result, the number of lines crossing the transmissive parts is reduced, thereby increasing an aperture ratio of the transmissive parts.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 31, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Hyeon Choi, Binn Kim, Joon Soo Han
  • Patent number: 11561424
    Abstract: Provided is a tiled display device including a plurality of display devices each having a display panel including a plurality of pixels and a support plate disposed under the display panel, a lower cover including an alignment hole and coupled to a lower portion of the support plate of each of the plurality of display devices, and a first coupling member including a base portion fixed to the support plate and a first coupling portion protruding from the base portion and passing through the alignment hole. A diameter of the first coupling portion is smaller than a diameter of the alignment hole.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 24, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hyeon Choi, Haeng Won Park, Il Hyun Yang, Dae Hwan Jang, Jin Ho Cho
  • Publication number: 20230006216
    Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.
    Type: Application
    Filed: January 10, 2022
    Publication date: January 5, 2023
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Young LEE, Seung Ju LEE, Jin Hyeon CHOI, Jeawoo JUNG, Hyoung-Juhn KIM, Sung Jong YOO, Hee-Young PARK, Bora SEO, Jin Young KIM, Jong Hyun JANG