Patents by Inventor Hyeong Su KIM

Hyeong Su KIM 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: 20240130233
    Abstract: Provided are a compound capable of improving the light-emitting efficiency, stability, and lifespan of an organic electronic element employing the compound, a composition comprising the same, an organic electronic element employing the same, and an electronic device thereof.
    Type: Application
    Filed: November 22, 2023
    Publication date: April 18, 2024
    Applicant: DUK SAN NEOLUX CO., LTD.
    Inventors: Seung Hoon HAHN, Hyeong Su KIM, Junggeun LEE
  • Publication number: 20240030460
    Abstract: Provided is a membrane-electrode assembly having improved binding strength between a polymer electrolyte membrane and a catalyst layer and improved durability of the catalyst layer. An embodiment of the present invention provides a membrane-electrode assembly including a polymer electrolyte membrane and a catalyst layer disposed on at least one surface of the polymer electrolyte membrane, wherein the catalyst layer contains a first composite and a second composite; the first composite contains a first catalyst containing a support and first metal particles supported on the support, and a first ionomer coated on the surface of the first catalyst; the second composite contains a second catalyst that contains second metal particles and is not supported on a support, and a second ionomer that is not coated on the surface of the second catalyst; and the first ionomer and the second ionomer are identical with or different from each other.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 25, 2024
    Inventors: Jung Ho KIM, Gyong Bum KO, Jun Young KIM, Sang ll LEE, Kah Young SONG, Dong Jun CHO, Nak Won KONG, Hyeong Su KIM, Kyoung Sik NAM, Ju Sung LEE, Chan Mi PARK, Sun Young JEONG
  • Publication number: 20230411633
    Abstract: The present invention relates to a catalyst layer for a fuel cell, a method for producing the catalyst layer, and a membrane-electrode assembly and a fuel cell including the catalyst layer. More particularly, the invention relates to a catalyst layer for a fuel cell, the catalyst layer including a catalyst, a heat dissipation material, and an ionomer and having an effect that the heat generated by an exothermic reaction in the catalyst layer can be efficiently discharged to the outside and a phenomenon of deterioration of a membrane-electrode assembly caused by temperature increase in the catalyst layer can be suppressed; a method for producing the catalyst layer; and a membrane-electrode assembly and a fuel cell, both including the catalyst layer.
    Type: Application
    Filed: December 3, 2021
    Publication date: December 21, 2023
    Inventors: Jung Ho KIM, Jun Young KIM, Gyong Bum KO, Sang II LEE, Kah Young SONG, Dong Jun CHO, Nak Won KONG, Hyeong Su KIM, Kyoung Sik NAM, Ju Sung LEE, Chan Mi PARK, Sun Young JEONG
  • Publication number: 20230407095
    Abstract: Provided is an asphalt modifier for an asphalt mixture and an asphalt mixture containing the same, and more particularly, to an asphalt modifier in which a coating layer containing low-melting-point polyethylene and an inorganic material is formed on a reinforcing fiber bundle. Preferably, the asphalt modifier according to the present disclosure is intended to be mixed with aggregate and an asphalt binder, and comprises: a reinforcing fiber bundle having a length of 8 to 34 mm and composed of a plurality of reinforcing fiber strands; and a coating layer forming the envelope of the reinforcing fiber bundle and comprising polyethylene and an inorganic material.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 21, 2023
    Inventors: Hyeong Su KIM, Chan Heum YEON, Soon Hun PARK, Hyong Ho NAM, Su Ran KIM, Ji Hwan PARK, Seung Hoon SHIN, Young Suk KIM
  • Publication number: 20230242767
    Abstract: Provided is an asphalt modifier for an asphalt mixture and an asphalt mixture containing the same, and more particularly, to an asphalt modifier in which a coating layer containing low-melting-point polyethylene and an inorganic material is formed on a reinforcing fiber bundle. Preferably, the asphalt modifier according to the present disclosure is intended to be mixed with aggregate and an asphalt binder, and comprises: a reinforcing fiber bundle having a length of 8 to 34 mm and composed of a plurality of reinforcing fiber strands; and a coating layer forming the envelope of the reinforcing fiber bundle and comprising polyethylene and an inorganic material.
    Type: Application
    Filed: October 19, 2021
    Publication date: August 3, 2023
    Inventors: Hyeong Su KIM, Chan Heum YEON, Soon Hun PARK, Hyong Ho NAM, Su Ran KIM, Ji Hwan PARK, Seung Hoon SHIN, Young Suk KIM
  • Publication number: 20230125501
    Abstract: Provided is a capacitor device, a unit synapse using the capacitor device, a synapse array using the unit synapses. The capacitor device comprises a semiconductor layer which include first and second doping regions formed to be spaced apart from each other and a body region formed between the first and second doping regions; a gate electrode provided above the body region; and a gate insulator stack to have a memory function and disposed between the gate electrode and the semiconductor layer. The capacitance between the gate electrode and the first doping region is determined according to information stored in the gate insulator stack, and the state of the capacitor device is determined according to the capacitance to be one of two preset states. The unit synapse comprises a pair of capacitor devices to perform an XNOR operation.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 27, 2023
    Inventors: Jong-Ho LEE, Hyeong-Su KIM
  • Publication number: 20230088563
    Abstract: Provided is an asphalt reinforcement, and more particularly, to an asphalt reinforcement, which is applicable to asphalt pavement without tack coat application and curing processes, and a method of repairing asphalt pavement using the same. The asphalt reinforcement of the present invention includes: a reinforcing fiber layer having a plurality of holes formed therein; a film layer, which is breathable or non-breathable, includes at least one resin selected from the group consisting of polypropylene, polyethylene, ethylene vinyl acetate, polyethylene elastomers, polypropylene elastomers, polybutene, and thermoplastic polyurethane, and has a melting point of 90° C. to 130° C.; and a nonwoven fabric layer, which is disposed between the reinforcing fiber layer and the film layer, is impregnated with an asphalt emulsion, and has a melting point of 50° C. to 130° C.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 23, 2023
    Inventors: Hyeong Su KIM, Hyong Ho NAM, Sung Hoon SHIM, Hyoung Dong KO
  • Publication number: 20230092942
    Abstract: Provided is a cover for asphalt including an asphalt emulsion and a method of paving asphalt using the same, and specifically, to a cover for asphalt, which may facilitate adhesion between an existing asphalt pavement layer and a new asphalt pavement layer and substitute for a tack coat. The cover for asphalt prevents an asphalt emulsion from being damaged by heavy vehicles or construction equipment moving for application of a new pavement layer, and allows omitting separate asphalt emulsion application and curing processes before application of the new asphalt layer.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 23, 2023
    Inventors: Hyeong Su KIM, Hyong Ho NAM, Sung Hoon SHIM, Hyoung Dong KO
  • Patent number: 11557782
    Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: January 17, 2023
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Jung Ho Kim, Hyeong Su Kim
  • Publication number: 20220186031
    Abstract: Provided is an asphalt modifier for an asphalt mixture and an asphalt mixture containing the same, and more particularly, to an asphalt modifier in which a coating layer containing low-melting-point polyethylene and an inorganic material is formed on a reinforcing fiber bundle. Preferably, the asphalt modifier according to the present disclosure is intended to be mixed with aggregate and an asphalt binder, and comprises: a reinforcing fiber bundle having a length of 8 to 34 mm and composed of a plurality of reinforcing fiber strands; and a coating layer forming the envelope of the reinforcing fiber bundle and comprising polyethylene and an inorganic material.
    Type: Application
    Filed: October 19, 2021
    Publication date: June 16, 2022
    Inventors: Hyeong Su KIM, Chan Heum YEON, Soon Hun PARK, Hyong Ho NAM, Su Ran KIM, Ji Hwan PARK, Seung Hoon SHIN, Young Suk KIM
  • Publication number: 20220158208
    Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Jung Ho KIM, Hyeong Su KIM
  • Patent number: 11283093
    Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: March 22, 2022
    Inventors: Jung Ho Kim, Hyeong Su Kim
  • Patent number: 10985381
    Abstract: A nanostructured electrode for a polymer electrolyte fuel cell, a manufacturing method thereof, and a fuel cell including the nanostructured electrode are provided. The nanostructured electrode includes: a three-dimensional nanostructure including a nanoporous aerogel and an ionomer surrounding the surface of the aerogel; and a catalyst dispersed in the three-dimensional nanostructure. The electrode can obtain excellent current density and power density even with a relatively small amount of catalyst by having improved catalyst performance due to nanostructuring of an ionomer, uniform catalyst dispersion and increased catalyst utilization ratio, can also obtain a price reduction effect through a decrease in the amount of catalyst used, and is excellent in the mass transfer efficiency and low humidification performance.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 20, 2021
    Inventors: Jung Ho Kim, Han Moon Cho, Hyeong Su Kim, Gyong Bum Ko
  • Publication number: 20200335799
    Abstract: A nanostructured electrode for a polymer electrolyte fuel cell, a manufacturing method thereof, and a fuel cell including the nanostructured electrode are provided. The nanostructured electrode includes: a three-dimensional nanostructure including a nanoporous aerogel and an ionomer surrounding the surface of the aerogel; and a catalyst dispersed in the three-dimensional nanostructure. The electrode can obtain excellent current density and power density even with a relatively small amount of catalyst by having improved catalyst performance due to nanostructuring of an ionomer, uniform catalyst dispersion and increased catalyst utilization ratio, can also obtain a price reduction effect through a decrease in the amount of catalyst used, and is excellent in the mass transfer efficiency and low humidification performance.
    Type: Application
    Filed: March 27, 2017
    Publication date: October 22, 2020
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Jung Ho KIM, Han Moon CHO, Hyeong Su KIM, Gyong Bum KO
  • Publication number: 20190245232
    Abstract: Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.
    Type: Application
    Filed: December 22, 2017
    Publication date: August 8, 2019
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Jung Ho KIM, Hyeong Su KIM
  • Patent number: 10077534
    Abstract: The present invention relates to an asphalt reinforcement comprising an air-permeable polyethylene film, and more particularly, to an asphalt reinforcement comprising an air-permeable polyethylene film prepared by adding an inorganic material to a composition comprising polyethylenes having different properties. The asphalt reinforcement comprising the air-permeable polyethylene film according to the present invention has excellent adhesive strength, constructability, flexibility and mechanical strength.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: September 18, 2018
    Assignee: ESG INDUSTRY CO., LTD.
    Inventor: Hyeong Su Kim
  • Publication number: 20160362849
    Abstract: The present invention relates to an asphalt reinforcement comprising an air-permeable polyethylene film, and more particularly, to an asphalt reinforcement comprising an air-permeable polyethylene film prepared by adding an inorganic material to a composition comprising polyethylenes having different properties. The asphalt reinforcement comprising the air-permeable polyethylene film according to the present invention has excellent adhesive strength, constructability, flexibility and mechanical strength.
    Type: Application
    Filed: October 13, 2014
    Publication date: December 15, 2016
    Inventor: Hyeong Su KIM