Patents by Inventor Jae Cheol Cho

Jae Cheol Cho 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: 10046538
    Abstract: Provided are: a composite sheet comprising a silicone matrix and a first sheet including a reinforcement material impregnated into the silicone matrix, wherein the first sheet has a compression elongation of about 30% or more; a method for manufacturing the same; and a display device including the same.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 14, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Eun Hwan Jeong, Woo Jin Lee, Sung Kook Kim, Jae Cheol Cho
  • Publication number: 20160369060
    Abstract: The present invention relates to: a composition for a composite sheet comprising linear silicone-based rubber and a crosslinking agent, wherein a matrix made of the composition has a tensile elongation of about 15% or greater; a composite sheet manufactured using the same; and a display device comprising the same.
    Type: Application
    Filed: July 28, 2014
    Publication date: December 22, 2016
    Inventors: Woo Jin LEE, Eun Hwan JEONG, Sung Kook KIM, Young Kwon KIM, Jae cheol CHO
  • Publication number: 20160114555
    Abstract: Provided are: a composite sheet comprising a silicone matrix and a first sheet including a reinforcement material impregnated into the silicone matrix, wherein the first sheet has a compression elongation of about 30% or more; a method for manufacturing the same; and a display device including the same.
    Type: Application
    Filed: May 9, 2014
    Publication date: April 28, 2016
    Inventors: Eun Hwan JEONG, Woo Jin LEE, Sung Kook KIM, Jae Cheol CHO
  • Publication number: 20110015349
    Abstract: According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain thereby providing a 1,1-diphenylene end-functionalized chain. Subsequently, an alkylating agent is reacted with the 1,1-diphenylene end-functionalized chain, thereby providing an alkylated 1,1-diphenylene end-functionalized chain. In some embodiments, the method further comprises (a) optionally combining a 1,1-diphenylorganolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer followed by (b) reacting an organolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer. This provides an anionically terminated polymer, which can be used, for example, in subsequent anionic polymerization and coupling reactions.
    Type: Application
    Filed: February 2, 2010
    Publication date: January 20, 2011
    Applicant: University of Massachusetts Lowell
    Inventors: Rudolf Faust, Jae Cheol Cho
  • Patent number: 7708908
    Abstract: An electroconductive carboxylic acid functionalized monomer corresponding to Formula (I), wherein A represents a hydrogen or a carboxyl group. Polymerized monomers of Formula (I) conjugated with a biomolecule result in conjugated PEDOT polymers of Formula (III) wherein A is a hydrogen or a carboxylic acid group and B is a biomolecule selected from the group consisting of a peptide, a protein, a lipid, a carbohydrate and a polynucleotide. The biomolecule conjugated polymers can be disposed onto an electrically conductive substrate wherein the substrate has a first layer of PEDOT polymerized on a surface of the substrate and a second layer of biomolecule conjugated PEDOT polymer of Formula (III) polymerized on the first layer of PEDOT. The first and second layers form a charge transport material in electrical communication with the conductive substrate. The electrically conductive substrate further comprises a dopant.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: May 4, 2010
    Assignee: The Regents of The University of Michigan
    Inventors: Jinsang Kim, Jae Cheol Cho, Laura K. Povlich, David C. Martin
  • Patent number: 7671158
    Abstract: According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain thereby providing a 1,1-diphenylene end-functionalized chain. Subsequently, an alkylating agent is reacted with the 1,1-diphenylene end-functionalized chain, thereby providing an alkylated 1,1-diphenylene end-functionalized chain. In some embodiments, the method further comprises (a) optionally combining a 1,1-diphenylorganolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer followed by (b) reacting an organolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer. This provides an anionically terminated polymer, which can be used, for example, in subsequent anionic polymerization and coupling reactions.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: March 2, 2010
    Assignee: University of Massachusetts Lowell
    Inventors: Rudolf Faust, Jae Cheol Cho
  • Publication number: 20080275202
    Abstract: The present invention is directed to copolymers that include a plurality of constitutional units that correspond to cationically polymerizable monomer species and a second polymer block that comprises a plurality of constitutional units that correspond to an anionically polymerizable vinylpyridine, e.g., 2-vinylpyridine, and methods for making the same. Such copolymers can also include a linking moiety, e.g., a Formula (I) group, a Formula (II) group, or any combinations thereof.
    Type: Application
    Filed: January 11, 2006
    Publication date: November 6, 2008
    Applicant: UNIVERSITY OF MASSACHUSETTS
    Inventors: Rudolf Faust, Jae Cheol Cho
  • Publication number: 20080224099
    Abstract: An electroconductive carboxylic acid functionalized monomer corresponding to Formula (I), wherein A represents a hydrogen or a carboxyl group. Polymerized monomers of Formula (I) conjugated with a biomolecule result in conjugated PEDOT polymers of Formula (III) wherein A is a hydrogen or a carboxylic acid group and B is a biomolecule selected from the group consisting of a peptide, a protein, a lipid, a carbohydrate and a polynucleotide. The biomolecule conjugated polymers can be disposed onto an electrically conductive substrate wherein the substrate has a first layer of PEDOT polymerized on a surface of the substrate and a second layer of biomolecule conjugated PEDOT polymer of Formula (III) polymerized on the first layer of PEDOT. The first and second layers form a charge transport material in electrical communication with the conductive substrate. The electrically conductive substrate further comprises a dopant.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 18, 2008
    Inventors: Jinsang Kim, Jae Cheol Cho, Laura K. Povlich, David C. Martin
  • Patent number: 7160952
    Abstract: The present invention relates to a linear block copolymer and a process for preparing the same, particularly to a linear block copolymer and a process for preparing the same which can improve transmissivity of a block copolymer and remarkably lower a Haze value by introducing a vinyl aromatic hydrocarbon to conduct primary polymerization, simultaneously introducing a vinyl aromatic hydrocarbon and a conjugated diene monomer therein to conduct secondary polymerization, and introducing a vinyl aromatic hydrocarbon therein to conduct tertiary polymerization, thereby locating a conjugated diene/vinyl aromatic hydrocarbon copolymer block in a block copolymer.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: January 9, 2007
    Assignee: LG Chem, Ltd.
    Inventors: Moon-Seok Chun, Jae-Cheol Cho, Kyu-Seok Sim, Choon-Hwa Lee
  • Publication number: 20060229390
    Abstract: The present invention relates to an asphalt composition comprising a linear diblock copolymer. Particularly, an asphalt composition comprising a linear diblock copolymer consisting of a vinyl aromatic hydrocarbon/conjugated diene has superior dispersion, elongation and a high softening point, and an asphalt composition to which a small amount of sulfur compound is further added has more improved dispersion and thus elongation and softening temperature can be improved more effectively.
    Type: Application
    Filed: March 20, 2006
    Publication date: October 12, 2006
    Inventors: Moon-Seok Chun, Jae-Cheol Cho, Kyu-Seok Sim, Choon-Hwa Lee
  • Publication number: 20060217509
    Abstract: The present invention relates to a linear block copolymer and a process for preparing the same, particularly to a linear block copolymer and a process for preparing the same which can improve transmissivity of a block copolymer and remarkably lower a Haze value by introducing a vinyl aromatic hydrocarbon to conduct primary polymerization, simultaneously introducing a vinyl aromatic hydrocarbon and a conjugated diene monomer therein to conduct secondary polymerization, and introducing a vinyl aromatic hydrocarbon therein to conduct tertiary polymerization, thereby locating a conjugated diene/vinyl aromatic hydrocarbon copolymer block in a block copolymer.
    Type: Application
    Filed: September 23, 2005
    Publication date: September 28, 2006
    Inventors: Moon-Seok Chun, Jae-Cheol Cho, Kyu-Seok Sim, Choon-Hwa Lee
  • Patent number: 7056985
    Abstract: According to an aspect of the present invention, a method is provided in which a double diphenylethylene compound is reacted with a polymer that contains a carbocationically terminated chain thereby providing a 1,1-diphenylene end-functionalized chain. Subsequently, an alkylating agent is reacted with the 1,1-diphenylene end-functionalized chain, thereby providing an alkylated 1,1-diphenylene end-functionalized chain. In some embodiments, the method further comprises (a) optionally combining a 1,1-diphenylorganolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer followed by (b) reacting an organolithium compound with the alkylated 1,1-diphenylene end-functionalized polymer. This provides an anionically terminated polymer, which can be used, for example, in subsequent anionic polymerization and coupling reactions.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: June 6, 2006
    Assignee: University of Massachusetts Lowell
    Inventors: Rudolf Faust, Jae Cheol Cho
  • Publication number: 20050004273
    Abstract: The present invention relates to an asphalt composition comprising a linear diblock copolymer. Particularly, an asphalt composition comprising a linear diblock copolymer consisting of a vinyl aromatic hydrocarbon/conjugated diene has superior dispersion, elongation and a high softening point, and an asphalt composition to which a small amount of sulfur compound is further added has more improved dispersion and thus elongation and softening temperature can be improved more effectively.
    Type: Application
    Filed: December 4, 2002
    Publication date: January 6, 2005
    Inventors: Moon-Seok Chun, Jae-Cheol Cho, Kyu-Seok Sim, Choon-Hwa Lee