Patents by Inventor Jong Sung Yu

Jong Sung Yu 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: 20230082237
    Abstract: The present invention provides a method for producing a nitrogen-doped highly graphitic porous carbon body, and a nitrogen-doped highly graphitic porous carbon body produced according to the same. Also, the present invention provides a method for producing a sulfur and nitrogen double-doped highly graphitic porous carbon body, a sulfur and nitrogen double-doped highly graphitic porous carbon body produced according to the same, and an electrode catalyst for a fuel cell and/or a water electrolysis reaction comprising the carbon body.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 16, 2023
    Inventors: Jong Sung YU, Ha Young LEE
  • Patent number: 11506626
    Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: November 22, 2022
    Assignees: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
    Inventors: Jong Sung Yu, Chunfei Zhang
  • Patent number: 11450033
    Abstract: Provided are an apparatus and method for experiencing an augmented reality (AR)-based screen sports match which enable even a child, an elderly person, and a person with a disability to easily and safely experience a ball sports match, such as tennis, badminton, or squash, as a screen sports match without using a wearable marker or sensor, a wearable display, an actual ball, and an actual tool.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: September 20, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Sung Kim, Youn Hee Gil, Seong Min Baek, Hee Sook Shin, Seong Il Yang, Cho Rong Yu, Sung Jin Hong
  • Patent number: 11417872
    Abstract: Provided are a porous inorganic insulator-sulfur composite and a lithium-sulfur battery including the same. More particularly, provided are a composite having sulfur supported in pores of a porous inorganic insulator, a cathode for lithium-sulfur batteries or an interlayer, which includes the composite, and a lithium-sulfur battery including the cathode or the interlayer.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 16, 2022
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCHIENCE & TECHNOLOGY
    Inventors: Jong Sung Yu, Byong-June Lee
  • Publication number: 20220251695
    Abstract: A plated steel wire, according to one aspect of the present invention, comprises: a base steel wire; and a zinc alloy plated layer. The zinc alloy plated layer comprises, in percentage by weight: 1.0% to 3.0% of AI; 1.0% to 2.0% of Mg; 0.5% to 5.0% of Fe; and the balance being Zn and unavoidable impurities, and includes a Zn/MgZn2/AI ternary eutectic structure, a Zn single-phase structure, and an Fe—Zn-AI-based crystal structure, wherein the Fe—Zn-AI-based crystal structure is formed adjacent to the base steel wire, and can have an average thickness of ? to ½ with respect to an average thickness of the zinc alloy plated layer.
    Type: Application
    Filed: June 26, 2019
    Publication date: August 11, 2022
    Applicants: POSCO, KISWIRE LTD., HONGDUK INDUSTRIAL CO., LTD.
    Inventors: Tae-Chul Kim, Jong-Sung Kim, Sung-Hoon Kang, Gwang-Weon Yu, Il-Ryoung Sohn, Jong-Sang Kim
  • Patent number: 11260368
    Abstract: The present invention relates to a method of reducing a metal oxide comprising the steps of preparing a mixture by mixing a metal oxide and a metal hydride (step 1) and reducing the mixture by heat treatment (step 2) and a method of producing a photocatalyst using the same, and The method of reducing a metal oxide of the present invention can easily reduce such metal oxides as TiO2, ZrO2, V2O3, and Fe2O3.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 1, 2022
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE & TECHNOLOGY
    Inventor: Jong-Sung Yu
  • Publication number: 20210359311
    Abstract: An electrode catalyst is configured such that non-noble metal particles, noble metal particles or nitride-doped noble metal particles are supported on a carbon support, wherein the carbon support has a 2D planar crystal structure or a 3D polyhedral crystal structure and is doped with nitrogen, thereby exhibiting increased catalytic activity.
    Type: Application
    Filed: December 28, 2020
    Publication date: November 18, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Eun Jik LEE, Jee Youn HWANG, Ji Hoon JANG, Ha Young LEE, Jong Sung YU
  • Publication number: 20200044239
    Abstract: Provided are a porous inorganic insulator-sulfur composite and a lithium-sulfur battery including the same. More particularly, provided are a composite having sulfur supported in pores of a porous inorganic insulator, a cathode for lithium-sulfur batteries or an interlayer, which includes the composite, and a lithium-sulfur battery including the cathode or the interlayer.
    Type: Application
    Filed: July 17, 2019
    Publication date: February 6, 2020
    Inventors: Jong Sung YU, Byong-June LEE
  • Publication number: 20190277794
    Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Sung YU, Chunfei ZHANG
  • Publication number: 20180318795
    Abstract: The present invention relates to a method of reducing a metal oxide comprising the steps of preparing a mixture by mixing a metal oxide and a metal hydride (step 1) and reducing the mixture by heat treatment (step 2) and a method of producing a photocatalyst using the same, and The method of reducing a metal oxide of the present invention can easily reduce such metal oxides as TiO2, ZrO2, V2O3, and Fe2O3.
    Type: Application
    Filed: September 30, 2016
    Publication date: November 8, 2018
    Inventor: Jong-Sung YU
  • Patent number: 9415351
    Abstract: The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 16, 2016
    Assignees: LG CHEM, LTD., KOREA UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Young-Ju Lee, Jong-Sung Yu, Jae-Hong Kim, Chong-Kyu Shin, Yun-Kyung Kim
  • Patent number: 9306217
    Abstract: Provided are mesoporous carbon structures and a method for preparing the same. The mesoporous carbon structures have a high surface area, a large pore volume and a large pore size in addition to a small mesopore length. Therefore, when using the mesoporous carbon structures as an anode active material for a lithium secondary battery, it is possible to provide a lithium secondary battery with excellent lithium ion storability and charge/discharge efficiency.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: April 5, 2016
    Assignee: Korea University Research and Business Foundation
    Inventor: Jong-Sung Yu
  • Publication number: 20150321151
    Abstract: The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.
    Type: Application
    Filed: June 7, 2013
    Publication date: November 12, 2015
    Inventors: Young-Ju LEE, Jong-Sung YU, Jae-Hong KIM, Chong-Kyu SHIN, Yun-Kyung KIM
  • Patent number: 9126840
    Abstract: Provided are organosilica composites based on bis(3-triethoxysilylpropyl)tetrasulfide (TESPTS) or bis(3-triethoxysilylpropyl)disulfide (TESPDS) and containing octadecyltrimethoxy silane (C18TMS) and cetyltrimethylammonium bromide (CTAB), and a method for preparing hollow or porous carbon structures and silica structures using the same. According to the present disclosure, it is possible to obtain hollow or porous carbon structures and silica structures in a more simple and cost-efficient manner. Thus, the resultant structures have a high surface area and a large mesopore volume, so that they may serve as catalyst carriers for fuel cells capable of loading metal catalyst particles having a smaller particle size in a larger amount and in a more homogeneously dispersed state.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: September 8, 2015
    Assignee: Korea University Research and Business Foundation
    Inventor: Jong-Sung Yu
  • Patent number: 8993198
    Abstract: Disclosed is a method for preparing a platinum/support catalyst or a platinum alloy/support catalyst, including: a) preparing a dispersion solution including urea, a support and a water-soluble salt of at least one metal(s) having catalytic activity; (b) reacting the dispersion solution at high temperature so as to deposit the metal hydroxide particles derived from the at least one metal(s) on the support; and (c) reducing the metal hydroxide particles. The size and distribution of the platinum particles or platinum alloy particles are greatly improved by the use of urea.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 31, 2015
    Assignee: Korea University Research and Business Foundation
    Inventor: Jong-Sung Yu
  • Publication number: 20140356623
    Abstract: Provided are organosilica composites based on bis(3-triethoxysilylpropyl)tetrasulfide (TESPTS) or bis(3-triethoxysilylpropyl)disulfide (TESPDS) and containing octadecyltrimethoxy silane (C18TMS) and cetyltrimethylammonium bromide (CTAB), and a method for preparing hollow or porous carbon structures and silica structures using the same. According to the present disclosure, it is possible to obtain hollow or porous carbon structures and silica structures in a more simple and cost-efficient manner. Thus, the resultant structures have a high surface area and a large mesopore volume, so that they may serve as catalyst carriers for fuel cells capable of loading metal catalyst particles having a smaller particle size in a larger amount and in a more homogeneously dispersed state.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventor: Jong-Sung Yu
  • Patent number: 8877078
    Abstract: Disclosed are a method for recycling silica waste and a method for preparing nanoporous material and other valuable silica materials. More specifically, a method for preparing a nanoporous material by recycling silica-containing waste produced from a silica etching process in the synthesis of nanoporous carbon is provided. The present disclosure allows recycling of silica waste in an effective and environment-friendly manner, reduction of consumption of chemical materials, and reduction of chemical waste. Accordingly, the present disclosure enables effective preparation of various valuable nanoporous silica and other silica materials from silica waste released for production of various nanoporous materials.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 4, 2014
    Assignee: Korea University Research And Business Foundation
    Inventor: Jong-Sung Yu
  • Patent number: 8865116
    Abstract: Disclosed is a method for preparing hematite iron oxide having various nanostructures, including: preparing a mixture solution by adding iron chloride and caffeine to a solvent and magnetically stirring; and performing hydrothermal synthesis, wherein the solvent is selected from water, ethanol, propanol and methanol. In accordance with the present disclosure, hematite iron oxide (?-Fe2O3) superstructures of various shapes, including grape, cube, dumbbell and microsphere shapes, can be synthesized in different solvents using caffeine. The shapes can be controlled variously via a simple one-step synthesis route without using a growth-inducing agent and without separation based on size. The prepared hematite iron oxide exhibits high coercivity at room temperature owing to its fine crystal structures and anisotropic shapes.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 21, 2014
    Assignee: Korea University Research and Business Foundation
    Inventors: Jong-Sung Yu, Nitin Kaduba Chaudhari, Hyoung Chan Kim, Chul Sung Kim, Jeunghee Park
  • Publication number: 20130251624
    Abstract: Disclosed is a method for preparing hematite iron oxide having various nanostructures, including: preparing a mixture solution by adding iron chloride and caffeine to a solvent and magnetically stirring; and performing hydrothermal synthesis, wherein the solvent is selected from water, ethanol, propanol and methanol. In accordance with the present disclosure, hematite iron oxide (?-Fe2O3) superstructures of various shapes, including grape, cube, dumbbell and microsphere shapes, can be synthesized in different solvents using caffeine. The shapes can be controlled variously via a simple one-step synthesis route without using a growth-inducing agent and without separation based on size. The prepared hematite iron oxide exhibits high coercivity at room temperature owing to its fine crystal structures and anisotropic shapes.
    Type: Application
    Filed: November 7, 2012
    Publication date: September 26, 2013
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Jong-Sung Yu
  • Publication number: 20110315660
    Abstract: Disclosed are a method for recycling silica waste and a method for preparing nanoporous material and other valuable silica materials. More specifically, a method for preparing a nanoporous material by recycling silica-containing waste produced from a silica etching process in the synthesis of nanoporous carbon is provided. The present disclosure allows recycling of silica waste in an effective and environment-friendly manner, reduction of consumption of chemical materials, and reduction of chemical waste. Accordingly, the present disclosure enables effective preparation of various valuable nanoporous silica and other silica materials from silica waste released for production of various nanoporous materials.
    Type: Application
    Filed: April 29, 2011
    Publication date: December 29, 2011
    Inventor: Jong-Sung Yu