Patents by Inventor Han Ik JO

Han Ik JO 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).

  • HIGH-PERFORMANCE ELECTRODE FOR WATER ELECTROLYSIS USING ELECTROSPRAY, MEMBRANE ELECTRODE ASSEMBLY INCLUDING THE SAME, WATER ELECTROLYSIS DEVICE INCLUDING THE SAME, AND MANUFACTURING METHOD THEREOF
    Publication number: 20220170168
    Abstract: The present disclosure provides a high-performance electrode for water electrolysis using electrospray, a membrane electrode assembly including the same, a water electrolysis device including the electrode for water electrolysis, and a method for manufacturing the electrode for water electrolysis. The present disclosure is to provide a membrane electrode assembly (MEA) having increased porosity by using electrospray, and to apply the membrane electrode assembly to electrolysis.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Inventors: Han Ik JO, Hee-Young PARK, Jong Hyun JANG, Hyun S. PARK, Bora SEO, Hyoung-Juhn KIM, Sung Jong YOO
  • METHOD FOR CONTROLLING CRYSTAL PLANE OF POLYCRYSTALLINE METAL AND METAL-CARBON MATERIAL COMPOSITE INCLUDING METAL WHERE CRYSTAL PLANE IS CONTROLLED BY USING THE SAME
    Publication number: 20180105952
    Abstract: The growth of a specific crystal plane of a polycrystalline metal is induced or suppressed by forming a carbon material on the surface of the polycrystalline metal, and accordingly, the ratio of the crystal plane may be controlled, particularly, the crystal plane may be controlled so as for the polycrystalline metal to be similar to a single crystalline metal. Accordingly, a metal-carbon material composite where a crystal plane is controlled may be mass-produced at low costs through a continuous process.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 19, 2018
    Inventors: Han Ik JO, Sung Ho LEE, Su Young SON, Hae Na JO, Kyung-ae OH, Tae-Wook KIM, Dong Su LEE
  • Carbon nanostructure and method for preparing the same
    Patent number: 9944850
    Abstract: Provided is a carbon nanostructure including a plurality of organic molecules that are decomposition products of an organic solvent. The carbon nanostructure includes a carbon nanostructure core and a plurality of organic molecules bound to and grown on the carbon nanostructure core, wherein the carbon nanostructure core is a combination of the organic molecules.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: April 17, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Han Ik Jo, Gil Seong Kang, Cheol-Ho Lee, Sung Ho Lee, Dong Su Lee, Tae-Wook Kim, Younki Lee
  • ENERGY DEVICE INCLUDING HALOGENATED CARBON MATERIAL AND METHOD FOR PREPARING THE SAME
    Publication number: 20180090769
    Abstract: Prepared is a halogenated carbon material, which reduces a carbon material having an oxygen-based functional group by introducing a halogen gas or a mixed gas of a halogen gas and an inert gas into the carbon material having an oxygen-based functional group, and dopes a halogen into the carbon material. The resulting halogenated carbon material includes one or more selected from a group consisting of C—Y2 and C—Y3, and may be suitably for an energy device such as a fuel cell, a lithium ion battery, and a solar cell.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Han Ik JO, Cheol-Ho LEE, Gil Seong KANG, Younki LEE, Sung Ho LEE, Seong Mu JO, Sang Jun YOUN
  • Composite electric wire structure and method for manufacturing the same
    Patent number: 9905331
    Abstract: Provided are a composite electric wire structure wherein a carbon material island structure is formed on a surface of a metal wire and a method for manufacturing the same. The carbon material/metal composite electric wire is capable of solving stability problem and preventing a decrease in electrical properties, mechanical properties, etc. In addition, the composite electric wire structure may be produced in commercially viable large scale.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 27, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Han Ik Jo, Su Young Son, Sung Ho Lee, Dong Su Lee, Tae-Wook Kim
  • CARBON NANOSTRUCTURE AND METHOD FOR PREPARING THE SAME
    Publication number: 20170058193
    Abstract: Provided is a carbon nanostructure including a plurality of organic molecules that are decomposition products of an organic solvent. The carbon nanostructure includes a carbon nanostructure core and a plurality of organic molecules bound to and grown on the carbon nanostructure core, wherein the carbon nanostructure core is a combination of the organic molecules.
    Type: Application
    Filed: May 26, 2016
    Publication date: March 2, 2017
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Han Ik JO, Gil Seong KANG, Cheol-Ho LEE, Sung Ho LEE, Dong Su LEE, Tae-Wook KIM, Younki LEE
  • COMPOSITE ELECTRIC WIRE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20160365165
    Abstract: Provided are a composite electric wire structure wherein a carbon material island structure is formed on a surface of a metal wire and a method for manufacturing the same. The carbon material/metal composite electric wire is capable of solving stability problem and preventing a decrease in electrical properties, mechanical properties, etc. In addition, the composite electric wire structure may be produced in commercially viable large scale.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 15, 2016
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Han Ik JO, Su Young SON, Sung Ho LEE, Dong Su LEE, Tae-Wook KIM
  • Method of preparing reduced graphene oxide and reduced graphene oxide-polymer composites
    Patent number: 9318231
    Abstract: Methods of preparing reduced graphene oxide and reduced graphene oxide-polymer composites. The methods include covalently binding a halogen-substituted aromatic compounds to a graphene oxide and heat treating the graphene oxide with the halogen-substituted aromatic compounds covalently bound thereto at a low temperature, for example, 450° C. or less. By using the methods, reduced graphene oxide and reduced graphene oxide-polymer composites that have high electrical conductivities (e.g., 30,000 S/m or more) may be obtained.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: April 19, 2016
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bon-Cheol Ku, Ok-kyung Park, Sung Ho Lee, Seok In Na, Han Ik Jo, Jun Kyung Kim, Joong Hee Lee
  • METHOD OF PREPARING REDUCED GRAPHENE OXIDE AND REDUCED GRAPHENE OXIDE-POLYMER COMPOSITES
    Publication number: 20120302683
    Abstract: Methods of preparing reduced graphene oxide and reduced graphene oxide-polymer composites. The methods include covalently binding a halogen-substituted aromatic compounds to a graphene oxide and heat treating the graphene oxide with the halogen-substituted aromatic compounds covalently bound thereto at a low temperature, for example, 450° C. or less. By using the methods, reduced graphene oxide and reduced graphene oxide-polymer composites that have high electrical conductivities (e.g., 30,000 S/m or more) may be obtained.
    Type: Application
    Filed: March 2, 2012
    Publication date: November 29, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Bon-Cheol KU, Ok-kyung PARK, Sung Ho LEE, Seok In NA, Han Ik JO, Jun Kyung KIM, Joong Hee LEE
  • CARBON MATERIALS, PRODUCT COMPRISING THE SAME, AND METHOD FOR PREPARING THE SAME
    Publication number: 20120282446
    Abstract: Provided is a preparation method for carbon materials, carbon materials prepared from the same, and a product including the carbon materials, in which the preparation method including forming a polymer layer containing a polymer, stabilizing the polymer layer to form a cyclized aromatic structure of carbon atoms in the polymer, and carbonizing the stabilized polymer layer.
    Type: Application
    Filed: November 9, 2011
    Publication date: November 8, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Han Ik JO, Sung Ho LEE, Bon Cheol KU, Jun Kyung KIM, Tae Wook KIM, Sang Youp HWANG