Patents by Inventor Yong Gyun Jung

Yong Gyun Jung 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).

  • Patent number: 9689071
    Abstract: A graphene-coated steel sheet and a method for manufacturing the same are provided. The graphene-coated steel sheet includes a steel sheet and a graphene layer formed on the steel sheet. Therefore, the graphene-coated steel sheet can be useful in preventing corrosion of iron, such as oxidation of iron, and has remarkably excellent thermal conductivity and electrical conductivity, as well as excellent heat resistance resulting from thermal stability of graphene. Also, the method can be useful in manufacturing a high-quality graphene-coated steel sheet having a monocrystalline form and showing substantially no defects or impurities.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: June 27, 2017
    Assignees: POSCO, POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Chan Cuk Hwang, Yong Gyun Jung, Han Na Hwang, Jae In Jeong, Ji Hoon Yang
  • Publication number: 20160326393
    Abstract: According to the present invention, a noncovalent bond-modified carbon structure has advantages of: enabling the control of properties by controlling intervals between carbon structures according to the size and structure of a compound represented by Chemical Formula 1, which is inserted and adsorbed between the carbon structures; and enabling uniform dispersion in a polymer matrix without a change in intrinsic properties. In addition, a carbon structure/polymer composite comprising the modified carbon structure and a polymer matrix is simply manufactured and readily layered due to excellent orientation when forming a cured coating film, and thus can be useful for manufacturing a steel sheet having remarkable heat radiation, surface polarity, electrical properties and the like.
    Type: Application
    Filed: December 24, 2014
    Publication date: November 10, 2016
    Applicants: POSCO, POSCO
    Inventors: Yong-Gyun JUNG, Hye Jin YOO, Jung-Su KIM, Jong Sang KIM, Chang-Se BYEON
  • Patent number: 9376576
    Abstract: Provided are a resin composition for surface treatment and a surface-treated steel sheet coated therewith. The resin composition for surface treatment includes a dispersing element having excellent thermal conductivity and heat dissipation, thereby maintaining physical properties of the conventional anti-fingerprint steel sheet, for example, high whiteness, fingerprint resistance, workability, electric conductivity and alkali resistance, and providing heat dissipation. In addition, the surface-treated steel sheet coated with the resin composition for surface treatment of the present invention has physical properties such as high heat dissipation, electric conductivity and whiteness, and thus may be replaced with a bottom chassis of a backlight unit, particularly, an edge-type backlight unit.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 28, 2016
    Assignees: POSCO, Noroo Coil Coatings, Co., Ltd.
    Inventors: Yong-Gyun Jung, Gab-Yong Kim, Woon-Jong Kim, Jae-Dong Cho, Jong-Sang Kim, Joong-Kyu Kim, Myoung-Hee Choi, Yon-Kyun Song
  • Publication number: 20160102334
    Abstract: Provided are a rapid antimicrobial susceptibility test, based on an analysis of changes in morphology and growth pattern of a microbial cell under different concentrations of various antimicrobial agents, and an automated cell image analysis system therefor. The antimicrobial susceptibility test is rapidly performed based on an analysis of changes in morphology and growth pattern of a microbial cell under different concentrations of various antimicrobial agents, and this makes it possible to obtain highly reliable test results faster by six to seven times than the standard method recommended by Clinical and Laboratory Standards Institute (CLSI).
    Type: Application
    Filed: October 14, 2015
    Publication date: April 14, 2016
    Inventors: Yong-Gyun Jung, Eun-Geun Kim, Jung Heon Yoo, Sunghoon Kwon, Jungil Choi, Hee Chan Kim, Jung Chan Lee, Eui Jong Kim, Sang Hoon Song, Sei Ick Joo, Ji Soo Lee
  • Publication number: 20160075985
    Abstract: A microfluidic multi-well-based cell culture testing device is provided. The multi-well-based cell culture testing device has an array structure of a plurality of aligned microfluidic well units. Each of the microfluidic well units comprises an inlet through which a first fluid enters, an accommodation compartment adapted to accommodate a second fluid therein, a microfluidic channel through which the first fluid flows, and an air outlet adapted to facilitate the entering of the first fluid.
    Type: Application
    Filed: May 2, 2014
    Publication date: March 17, 2016
    Applicants: QUANTA MARTIX CO,. LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Yong Gyun JUNG, Eun Geun KIM, Sung hoon KWON, Jung ll CHOI
  • Publication number: 20150361477
    Abstract: Provided is a method for capture and release of microorganisms using microstructures. The method includes providing microstructures coated with a protein for attachment/detachment of microorganisms, mixing the microstructures with a solution containing substances assisting in attachment of microorganisms in a solution containing microorganisms to prepare a mixed solution, stirring the mixed solution to attach the microorganisms to the microstructures, separating the microorganism-attached microstructures from the mixed solution; and exposing the microstructures to an environment where the substances assisting in attachment of the microorganisms are present at a low concentration to detach the microorganisms from the microstructures.
    Type: Application
    Filed: July 4, 2013
    Publication date: December 17, 2015
    Inventor: Yong Gyun JUNG
  • Publication number: 20150344701
    Abstract: The present invention relates to a surface-treated steel plate and to a production method for same, and more specifically relates to a surface-treated steel plate having outstanding corrosion resistance and thermal conductivity. In order to achieve this aim, in the present invention a macromolecular resin composition comprising graphene, which has highly outstanding physical properties including electrical conductivity, is coated onto the surface of a steel foundation plate, thereby making it possible to provide a surface-treated steel plate able to supremely well ensure not only corrosion resistance but also the intrinsic characteristics of graphene due to the macromolecular resin composition.
    Type: Application
    Filed: December 24, 2013
    Publication date: December 3, 2015
    Inventors: Joong-Kyu KIM, Hyun-Chu YUN, Hye-Jin YOO, Jong-Sang KIM, Yong-Gyun JUNG
  • Publication number: 20150337353
    Abstract: A testing method is disclosed. The testing method includes: providing a mixture solution of a gelling agent and a microbe to a gelling device; solidifying the mixture solution to form a solid thin film in which the microbe is immobilized; supplying a bioactive agent to the solid thin film and allowing the bioactive agent to diffuse into the solid thin film; and imaging the individual responses of the single microbial cells to the bioactive agent, and determining the minimum inhibitory concentration (MIC) of the bioactive agent based on the analysis of the images to obtain AST results.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Publication number: 20150337352
    Abstract: A testing method is disclosed. The testing method includes: providing a mixture solution of a gelling agent and a microbe to a gelling device; solidifying the mixture solution to form a solid thin film in which the microbe is immobilized; supplying a bioactive agent to the solid thin film and allowing the bioactive agent to diffuse into the solid thin film; and imaging the individual responses of the single microbial cells to the bioactive agent, and determining the minimum inhibitory concentration (MIC) of the bioactive agent based on the analysis of the images to obtain AST results.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung II Choi, Hun Jong Na
  • Publication number: 20150329741
    Abstract: Provided are a graphene oxide, a graphene-polymer complex, a coating solution containing same, a graphene-polymer complex-coated steel sheet, and a method for manufacturing same. According to the present invention, a steel sheet is provided, in which graphenes can be directly coated to a base steel sheet without using a separate binder and said graphenes can be located on a coating layer, thus properties of the graphenes can be efficiently exhibited.
    Type: Application
    Filed: December 28, 2012
    Publication date: November 19, 2015
    Applicant: POSCO
    Inventors: Hye-Jin YOO, Joong-Kyu KIM, Yong-Gyun JUNG, Jong-Sang KIM
  • Publication number: 20150315625
    Abstract: A testing method is disclosed. The testing method includes: providing a mixture solution of a gelling agent and a microbe to a gelling device; solidifying the mixture solution to form a solid thin film in which the microbe is immobilized; supplying a bioactive agent to the solid thin film and allowing the bioactive agent to diffuse into the solid thin film; and imaging the individual responses of the single microbial cells to the bioactive agent, and determining the minimum inhibitory concentration (MIC) of the bioactive agent based on the analysis of the images to obtain AST results.
    Type: Application
    Filed: July 8, 2015
    Publication date: November 5, 2015
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Patent number: 9133498
    Abstract: A testing method is disclosed. The testing method includes: providing a mixture solution of a gelling agent and a microbe to a gelling device; solidifying the mixture solution to form a solid thin film in which the microbe is immobilized; supplying a bioactive agent to the solid thin film and allowing the bioactive agent to diffuse into the solid thin film; and imaging the individual responses of the single microbial cells to the bioactive agent, and determining the minimum inhibitory concentration (MIC) of the bioactive agent based on the analysis of the images to obtain AST results.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: September 15, 2015
    Assignees: SNU R & DB FOUNDATION, QUANTAMATRIX
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Publication number: 20140147645
    Abstract: Provided are a resin composition for surface treatment and a surface-treated steel sheet coated therewith. The resin composition for surface treatment includes a dispersing element having excellent thermal conductivity and heat dissipation, thereby maintaining physical properties of the conventional anti-fingerprint steel sheet, for example, high whiteness, fingerprint resistance, workability, electric conductivity and alkali resistance, and providing heat dissipation. In addition, the surface-treated steel sheet coated with the resin composition for surface treatment of the present invention has physical properties such as high heat dissipation, electric conductivity and whiteness, and thus may be replaced with a bottom chassis of a backlight unit, particularly, an edge-type backlight unit.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 29, 2014
    Applicants: NOROO COIL COATINGS, CO., LTD., POSCO
    Inventors: Yong-Gyun Jung, Gab-Yong Kim, Woon-Jong Kim, Jae-Dong Cho, Jong-Sang Kim, Joong-Kyu Kim, Myoung-Hee Choi, Yon-Kyun Song
  • Publication number: 20130251998
    Abstract: A graphene-coated steel sheet and a method for manufacturing the same are provided. The graphene-coated steel sheet includes a steel sheet and a graphene layer formed on the steel sheet. Therefore, the graphene-coated steel sheet can be useful in preventing corrosion of iron, such as oxidation of iron, and has remarkably excellent thermal conductivity and electrical conductivity, as well as excellent heat resistance resulting from thermal stability of graphene. Also, the method can be useful in manufacturing a high-quality graphene-coated steel sheet having a monocrystalline form and showing substantially no defects or impurities.
    Type: Application
    Filed: November 9, 2011
    Publication date: September 26, 2013
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, POSCO
    Inventors: Chan Cuk Hwang, Yong Gyun Jung, Han Na Hwang, Jae In Jeong, Ji Hoon Yang
  • Publication number: 20120263966
    Abstract: A resin composition for a pre-coated steel sheet having excellent welding properties, corrosion resistance and workability, a method of producing a pre-coated steel sheet using the same, and a pre-coated steel sheet are provided. More particularly, a metal resin composition for coating a film is provided. The composition includes a subject resin, a curing agent, and at least one kind of metal powder selected from the group consisting of Ni, Co, Mn, Fe, Ti, Cu, Al, Zn, Sn and Fe2P powder, and has an average short-axis diameter (?) satisfying the condition t/3???3t (where t is a thickness of a dried coating film formed by coating a resin metal composition for coating the coating film). Therefore, the steel sheet to which the metal resin composition is coated has excellent welding properties, corrosion resistance and workability.
    Type: Application
    Filed: December 7, 2010
    Publication date: October 18, 2012
    Applicant: POSCO
    Inventors: Jin Ho Jung, Je Hoon Baek, Jong Gi Oh, Yong Gyun Jung