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).

  • Publication number: 20230341382
    Abstract: The present invention relates to a POCT diagnostic system that can quickly identify traumatic brain injuries and infectious diseases and can accurately determine traumatic brain injuries and infectious diseases with high sensitivity. The present invention provides magnetic particles including a core including a magnetically responsive metal, a shell layer surrounding the core and having a uniform thickness, and capture probes introduced onto the shell layer to capture biological materials. Each of the capture probes includes an antibody against a biomarker for the diagnosis of a traumatic brain injury or infectious disease as an antigen.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 26, 2023
    Inventors: Yong Gyun JUNG, Joo Ho KIM
  • Publication number: 20230341383
    Abstract: The present invention relates to a POCT diagnostic system for cancer that can quickly identify early cancer, can diagnose the prognosis of cancer to enhance the therapeutic effects of anticancer agents, etc. on the cancer, and can accurately determine cancer with high sensitivity. The present invention provides magnetic particles including a core including a magnetically responsive metal, a shell layer surrounding the core and having a uniform thickness, and capture probes introduced onto the shell layer to capture biological materials. Each of the capture probes includes an antibody against a biomarker for cancer diagnosis as an antigen.
    Type: Application
    Filed: September 25, 2020
    Publication date: October 26, 2023
    Inventors: Yong Gyun JUNG, Joo Ho KIM
  • Publication number: 20210341470
    Abstract: Microparticles for detecting biological materials are provided. Each of the microparticles includes: a core-shell structured microparticle consisting of a core including a magnetically responsive metal and a shell layer surrounding the core and having a uniform thickness; and capture probes introduced onto the shell layer to capture biological materials.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 4, 2021
    Inventors: Yong-Gyun JUNG, Joo Ho KIM, Wook PARK, Suk-Heung SONG, Gyu Dong KIM
  • Patent number: 10947575
    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: Grant
    Filed: November 27, 2018
    Date of Patent: March 16, 2021
    Assignee: QUANTAMATRIX INC.
    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
  • Patent number: 10894941
    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: Grant
    Filed: May 2, 2014
    Date of Patent: January 19, 2021
    Assignee: QUANTAMATRIX INC.
    Inventors: Yong Gyun Jung, Eun Geun Kim, Sung hoon Kwon, Jung Il Choi
  • Patent number: 10828867
    Abstract: The present invention relates to a lightweight composite metal sheet having excellent vibration damping characteristics and a method of manufacturing the same. Provided is a composite metal sheet including: a metal sheet; and a plastic layer disposed on one surface or both surfaces of the metal sheet and including a polyolefin and a thermoplastic polyester polyether elastomer.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 10, 2020
    Assignee: POSCO
    Inventors: Jaedong Cho, Chang Gyun Jung, Yong-Gyun Jung, Gyo-Sung Kim, Bonghoon Chung, Yeong Gon Kim, Sang Eun Shim
  • Patent number: 10676776
    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: August 3, 2015
    Date of Patent: June 9, 2020
    Assignee: QUANTAMATRIX INC.
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Publication number: 20200122137
    Abstract: Provided is a method for cell isolation and morphological analysis. The method includes: providing a substrate with one or more wells; inserting cell isolation devices, each of which has one side patterned with one or more microwells, into the wells; introducing a liquid medium including cells into the wells; allowing the microwells of the cell isolation devices to come into contact with the inner surfaces of the wells such that some of the cells are isolated and trapped at the level of individual cells in the microwells; and observing the morphological changes of the isolated cells.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 23, 2020
    Inventors: Yong Gyun JUNG, Joo Ho Kim, Wook Park, Jin Sik Yoon, Suk Heung Song
  • Patent number: 10544324
    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: Grant
    Filed: December 24, 2014
    Date of Patent: January 28, 2020
    Assignee: POSCO
    Inventors: Yong-Gyun Jung, Hye Jin Yoo, Jung-Su Kim, Jong Sang Kim, Chang-Se Byeon
  • Patent number: 10533207
    Abstract: The present invention relates to a novel bioactivity testing structure for single cell tracking using a gelling agent and a bioactivity testing system including the testing structure. The present invention also relates to bioactivity testing, drug susceptibility testing, antibiotic screening, and diagnostic methods using the testing structure. The bioactivity testing structure of the present invention enables very rapid and simple drug susceptibility testing of bacteria, particularly Mycobacterium tuberculosis, drug screening, and bacterial diagnosis. Particularly, the use of the testing structure enables DST and diagnosis of bacteria only by pretreatment without the need to concentrate human sputum samples irrespective of inoculum effect, ensuring rapid, accurate, and simple testing compared to conventional tuberculosis diagnosis or DST systems. In addition, the testing structure of the present invention simultaneously enables the diagnosis and drug susceptibility testing of tuberculosis.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 14, 2020
    Assignee: QUANTAMATRIX INC.
    Inventors: Yong-Gyun Jung, Eun Guen Kim, Jung Heon Yoo, Kyung-Ock Park, Sunghoon Kwon, Jungil Choi, Hee jin Kim, Sung Weon Ryoo, Haeun Kim, Hyeon Ju Jeoung, Eun Hee Lee, Hyejin Kim
  • Publication number: 20190136289
    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: November 27, 2018
    Publication date: May 9, 2019
    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
  • Patent number: 10253348
    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: Grant
    Filed: July 4, 2013
    Date of Patent: April 9, 2019
    Assignee: QUANTAMATRIX INC.
    Inventor: Yong Gyun Jung
  • Patent number: 10208328
    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: Grant
    Filed: October 14, 2015
    Date of Patent: February 19, 2019
    Assignee: QUANTAMATRIX INC.
    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
  • Patent number: 10155971
    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: August 3, 2015
    Date of Patent: December 18, 2018
    Assignee: QUANTAMATRIX INC.
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Publication number: 20180281349
    Abstract: The present invention relates to a lightweight composite metal sheet having excellent vibration damping characteristics and a method of manufacturing the same. Provided is a composite metal sheet including: a metal sheet; and a plastic layer disposed on one surface or both surfaces of the metal sheet and including a polyolefin and a thermoplastic polyester polyether elastomer.
    Type: Application
    Filed: September 2, 2016
    Publication date: October 4, 2018
    Inventors: Jaedong CHO, Chang Gyun JUNG, Yong-Gyun JUNG, Gyo-Sung KIM, Bonghoon CHUNG, Yeong Gon KIM, Sang Eun SHIM
  • Patent number: 9920351
    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: July 8, 2015
    Date of Patent: March 20, 2018
    Assignee: QUANTAMATRIX INC.
    Inventors: Sunghoon Kwon, Yong-Gyun Jung, Jung Il Choi, Hun Jong Na
  • Patent number: 9783686
    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: Grant
    Filed: December 24, 2013
    Date of Patent: October 10, 2017
    Assignee: POSCO
    Inventors: Joong-Kyu Kim, Hyun-Chu Yun, Hye-Jin Yoo, Jong-Sang Kim, Yong-Gyun Jung
  • Publication number: 20170233786
    Abstract: The present invention relates to a novel bioactivity testing structure for single cell tracking using a gelling agent and a bioactivity testing system including the testing structure. The present invention also relates to bioactivity testing, drug susceptibility testing, antibiotic screening, and diagnostic methods using the testing structure. The bioactivity testing structure of the present invention enables very rapid and simple drug susceptibility testing of bacteria, particularly Mycobacterium tuberculosis, drug screening, and bacterial diagnosis. Particularly, the use of the testing structure enables DST and diagnosis of bacteria only by pretreatment without the need to concentrate human sputum samples irrespective of inoculum effect, ensuring rapid, accurate, and simple testing compared to conventional tuberculosis diagnosis or DST systems. In addition, the testing structure of the present invention simultaneously enables the diagnosis and drug susceptibility testing of tuberculosis.
    Type: Application
    Filed: October 16, 2014
    Publication date: August 17, 2017
    Inventors: Yong-Gyun JUNG, Eun Guen KIM, Jung Heon YOO, Kyung-Ock PARK, Sunghoon KWON, Jungil CHOI, Hee Jin KIM, Sung Weon RYOO, Haeun KIM, Hyeon Ju JEOUNG, Eun Hee LEE, Hyejin KIM
  • 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