Patents by Inventor Chang-Keun Lim

Chang-Keun Lim 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).

  • Oxamide nanogel, a preparation method of the same, and use thereof
    Patent number: 10814022
    Abstract: The present invention relates to a nanogel comprising a polyamine-based polymer cross-linked by oxamide bonds, a preparation method of the nanogel, a contrast agent for ultrasound imaging comprising the nanogel, a composition for ultrasound diagnosis of inflammatory diseases comprising the contrast agent, a preparation method of the contrast agent, and a method for providing information for diagnosis of inflammatory diseases using the composition for ultrasound diagnosis.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: October 27, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sehoon Kim, Chang-Keun Lim, Jeong yun Heo, Keunsoo Jeong
  • OXAMIDE NANOGEL, A PREPARATION METHOD OF THE SAME, AND USE THEREOF
    Publication number: 20180064832
    Abstract: The present invention relates to a nanogel comprising a polyamine-based polymer cross-linked by oxamide bonds, a preparation method of the nanogel, a contrast agent for ultrasound imaging comprising the nanogel, a composition for ultrasound diagnosis of inflammatory diseases comprising the contrast agent, a preparation method of the contrast agent, and a method for providing information for diagnosis of inflammatory diseases using the composition for ultrasound diagnosis.
    Type: Application
    Filed: April 28, 2017
    Publication date: March 8, 2018
    Inventors: Sehoon Kim, Chang-Keun Lim, Jeong yun Heo, Keunsoo Jeong
  • Fluorescent nanoprobe for detecting hydrogen peroxide and fabrication method thereof
    Patent number: 9012230
    Abstract: The present disclosure relates to a sulfonated benzene compound emitting fluorescence by reaction with hydrogen peroxide, aqueous-dispersed fluorescent nanoprobes applicable for real-time detection of hydrogen peroxide, and a fluorescent nanoprobe fabrication method. The fluorescent nanoprobe contains the following sulfonated benzene compound and water.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: April 21, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Sehoon Kim, Ick Chan Kwon, Jai Kyeong Kim, Chang-Keun Lim, Jeongyun Heo
  • Nanoparticles of light emissive polymers and preparation method thereof
    Patent number: 8367042
    Abstract: Disclosed are nanoparticles of a light emissive polymer, comprising nanoparticles of a cyano-substituted poly(arylene vinylene) polymer; and a biocompatible surfactant adsorbed to the surface of the nanoparticles of the polymer, and preparation method thereof, wherein the method comprises: (1) uniformly mixing a dialdehyde monomer represented by a general formula OHC—Ar1—CHO, a dicyanide monomer represented by a general formula NC—Ar2—CN, and a liquid surfactant; (2) adding water to the resulting mixture to prepare an aqueous micelle dispersion; and (3) adding a polymerization catalyst to the aqueous micelle dispersion, followed by carrying out colloidal polymerization of the resulting mixture at room temperature under an atmosphere.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 5, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Sehoon Kim, Ick Chan Kwon, Kwangmeyung Kim, Kuiwon Choi, Chang-Keun Lim
  • FLUORESCENT NANOPROBE FOR DETECTING HYDROGEN PEROXIDE AND FABRICATION METHOD THEREOF
    Publication number: 20120276651
    Abstract: The present disclosure relates to a sulfonated benzene compound emitting fluorescence by reaction with hydrogen peroxide, aqueous-dispersed fluorescent nanoprobes applicable for real-time detection of hydrogen peroxide, and a fluorescent nanoprobe fabrication method. The fluorescent nanoprobe contains the following sulfonated benzene compound and water.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 1, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sehoon KIM, Ick Chan Kwon, Jai Kyeong Kim, Chang-Keun Lim, Jeongyun Heo
  • NANOPARTICLES OF LIGHT EMISSIVE POLYMERS AND PREPARATION METHOD THEREOF
    Publication number: 20100290999
    Abstract: Disclosed are nanoparticles of a light emissive polymer, comprising nanoparticles of a cyano-substituted poly(arylene vinylene) polymer; and a biocompatible surfactant adsorbed to the surface of the nanoparticles of the polymer, and preparation method thereof, wherein the method comprises: (1) uniformly mixing a dialdehyde monomer represented by a general formula OHC—Ar1—CHO, a dicyanide monomer represented by a general formula NC—Ar2—CN, and a liquid surfactant; (2) adding water to the resulting mixture to prepare an aqueous micelle dispersion; and (3) adding a polymerization catalyst to the aqueous micelle dispersion, followed by carrying out colloidal polymerization of the resulting mixture at room temperature under an atmosphere.
    Type: Application
    Filed: October 8, 2009
    Publication date: November 18, 2010
    Applicant: Korea Institute of Science and Technology
    Inventors: Sehoon KIM, Ick Chan KWON, Kwangmeyung KIM, Kuiwon CHOI, Chang-Keun LIM