Patents by Inventor Eun Joo Park

Eun Joo Park 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: 20200254044
    Abstract: The present invention relates to various uses of a composition comprising plant-derived extracellular vesicles.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 13, 2020
    Inventors: Soo Young Jung, Eun Joo Park, Eun Wook Choi, Won Jong Lee
  • Patent number: 10632161
    Abstract: The present invention provides a method for ameliorating or treating inflammatory bowel disease (IBD) and/or irritable bowel syndrome (IBS), comprising administering extracellular vesicles derived from Kefir grains in a mammal in need thereof. The present invention also provides a pharmaceutical composition for ameliorating or treating IBD and/or IBS or a functional food composition for ameliorating or improving IBD and/or IBS, comprising said extracellular vesicles derived from Kefir grains as an active ingredient.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: April 28, 2020
    Assignee: PROSTEMICS CO. LTD.
    Inventors: Eun-Joo Park, Min-Koo Seo, Seong-Yeol Ko, Eun-Wook Choi, Won-Jong Lee
  • Publication number: 20200091535
    Abstract: Hydrocarbon proton exchange membranes are disclosed that are composed of a material including a hydrophobic main chain, and acidic side chains. The main chain includes a polyaryl structure that is substantially free of ether linkages and also includes a fluoromethyl substituted carbon. The acidic side chains include a hydrocarbon tether terminated by a strongly acidic group, such as a fluoroalkyl sulfonate group. Chemical stability of the material is increased by removing the ether linkages from the main chain. The hydrophobic main chain and substantially hydrophilic side chains create a phase-separated morphology that affords enhanced transport of protons and water across the membrane even at low relative humidity levels. These materials are advantageous as membranes for use in fuel cells, redox flow batteries, water hydrolysis systems, sensors, electrochemical hydrogen compressors, actuators, water purifiers, gas separators, etc.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 19, 2020
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Chulsung BAE, Eun Joo PARK, Junyoung HAN
  • Patent number: 10418632
    Abstract: Disclosed is a binder composition for secondary batteries, wherein conjugated diene latex particles (A) having an average particle diameter of 50 nm or more and 200 nm or less and acrylic copolymer latex particles (B) having an average particle diameter of 300 nm or more and 700 nm or less are present as an independent phases, and the acrylic copolymer latex particles (B) are included in an amount of 1% to 30% by weight based on a mass of a solid. When the binder composition according to the present invention is applied to an electrode mixture and lithium secondary battery, superior binding force may be maintained between electrode materials and between an electrode material and a current collector, which suffer volume change during charge/discharge, and a secondary battery having superior initial capacity and efficiency may be provided. In addition, thickness increase and gas generation are decreased at high temperature and thus swelling is decreased, whereby a battery having enhanced safety may be provided.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: September 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Eun Joo Park, Dong Jo Ryu, Min Ah Kang
  • Publication number: 20180271773
    Abstract: The present invention relates to a composition containing extracellular vesicles derived from plant juice, wherein the extracellular vesicles have excellent skin condition-improving effects such as skin whitening, moisturizing and wrinkle reducing effects and exhibits an excellent effect of preventing hair loss by promotion of hair growth and regrowth, and the like.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 27, 2018
    Inventors: Won Jong LEE, Eun Wook CHOI, Su KIM, Eun Young WOO, Eun Joo PARK, Ji Hyun KIM, Su Yeong JEONG
  • Patent number: 10044041
    Abstract: Disclosed are a binder with a core-shell structure for a secondary battery electrode, and a secondary battery including the same, wherein the core includes styrene-butadiene rubber (SBR), the shell includes a copolymer of two or more monomers selected from the group consisting of a conjugated diene-based monomer, a (meth)acrylic ester-based monomer, an acrylate-based monomer, a vinyl-based monomer, a nitrile-based monomer, and an ethylenically unsaturated carboxylic acid monomer, and the binder includes a functional group providing binding capacity to surfaces of the SBR particles. Such a binder provides excellent adhesive strength and elasticity and, thus, overall performance of a secondary battery including the same may be improved.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 7, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Eun Joo Park, Min Ah Kang, Dong Jo Ryu
  • Patent number: 9887423
    Abstract: Disclosed is a binder for secondary battery electrodes, the binder including polymer particles being prepared from monomers comprising (A) (meth)acrylic acid ester based monomers; (B) at least one monomer selected from the group consisting of an acrylate based compound, a styrene based compound, and a compound having a cyano group; (C) unsaturated monocarbonic acid based monomers; (D) (meth)acrylamide based monomers; and (E) monomers including at least one epoxy group for crosslinking, the polymer particles having an average particle diameter of 0.3 micrometers to 0.7 micrometers.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 6, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Min Ah Kang, Young Min Kim, Eun Joo Park
  • Patent number: 9620781
    Abstract: Disclosed is a binder for a secondary battery electrode including a copolymer of a hydrophilic monomer and a hydrophobic monomer, wherein, when a concentration of the copolymer is 5% in a solution based upon NMP as a solvent, a viscosity of the solution including the copolymer is 800 cP to 10000 cP. By using the binder, stability of an electrode is fundamentally improved from an electrode preparation process and, as such, a secondary battery having excellent lifespan characteristics is provided.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: April 11, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Min Ah Kang, Young-Min Kim, Eun Joo Park
  • Publication number: 20160233512
    Abstract: Disclosed is a binder composition for secondary batteries, wherein conjugated diene latex particles (A) having an average particle diameter of 50 nm or more and 200 nm or less and acrylic copolymer latex particles (B) having an average particle diameter of 300 nm or more and 700 nm or less are present as an independent phase, and the acrylic copolymer latex particles (B) are included in an amount of 1% to 30% by weight based on a mass of a solid. When the binder composition according to the present invention is applied to an electrode mixture and lithium secondary battery, superior binding force may be maintained between electrode materials and between an electrode material and a current collector, which suffer volume change during charge/discharge, and a secondary battery having superior initial capacity and efficiency may be provided. In addition, thickness increase and gas generation are decreased at high temperature and thus swelling is decreased, whereby a battery having enhanced safety may be provided.
    Type: Application
    Filed: August 14, 2014
    Publication date: August 11, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Eun Joo Park, Dong Jo Ryu, Min Ah Kang
  • Publication number: 20160156038
    Abstract: Disclosed are a binder with a core-shell structure for a secondary battery electrode, and a secondary battery including the same, wherein the core includes styrene-butadiene rubber (SBR), the shell includes a copolymer of two or more monomers selected from the group consisting of a conjugated diene-based monomer, a (meth)acrylic ester-based monomer, an acrylate-based monomer, a vinyl-based monomer, a nitrile-based monomer, and an ethylenically unsaturated carboxylic acid monomer, and the binder includes a functional group providing binding capacity to surfaces of the SBR particles. Such a binder provides excellent adhesive strength and elasticity and, thus, overall performance of a secondary battery including the same may be improved.
    Type: Application
    Filed: May 22, 2014
    Publication date: June 2, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Eun Joo Park, Min Ah Kang, Dong Jo Ryu
  • Publication number: 20150263350
    Abstract: Disclosed is a binder for secondary battery electrodes, the binder including polymer particles being prepared from monomers comprising (A) (meth)acrylic acid ester based monomers; (B) at least one monomer selected from the group consisting of an acrylate based compound, a styrene based compound, and a compound having a cyano group; (C) unsaturated monocarbonic acid based monomers; (D) (meth)acrylamide based monomers; and (E) monomers including at least one epoxy group for crosslinking, the polymer particles having an average particle diameter of 0.3 micrometers to 0.7 micrometers.
    Type: Application
    Filed: November 14, 2013
    Publication date: September 17, 2015
    Inventors: Min Ah Kang, Young Min Kim, Eun Joo Park
  • Publication number: 20150243993
    Abstract: Disclosed is a binder for a secondary battery electrode including a copolymer of a hydrophilic monomer and a hydrophobic monomer, wherein, when a concentration of the copolymer is 5% in a solution based upon NMP as a solvent, a viscosity of the solution including the copolymer is 800 cP to 10000 cP. By using the binder, stability of an electrode is fundamentally improved from an electrode preparation process and, as such, a secondary battery having excellent lifespan characteristics is provided.
    Type: Application
    Filed: July 4, 2013
    Publication date: August 27, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Min Ah Kang, Young-Min Kim, Eun Joo Park
  • Publication number: 20080126159
    Abstract: A method of managing an advertisement and a system for executing the method are provided.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 29, 2008
    Applicant: NHN CORPORATION
    Inventors: Wu Sic Wee, Jung Soo Ha, Eun Joo Park, Min Uk Kim, Sung Wook Moon, Jung Hyun Hwang, Min Ho Kim
  • Patent number: 6969751
    Abstract: The present invention relates to a method for preparing homo- and co-polymers having high molecular weights in high yields by polymerizing cyclic olefin compounds using a complex prepared by mixing a nickel salt compound, an organoaluminoxane compound, and at least one fluorine-containing compound.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: November 29, 2005
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Young Chan Jang, Hyun Kyung Sung, Eun Joo Park
  • Publication number: 20040079924
    Abstract: The invention relates to the ladder-type blue light-emitting polymers with excellent heat stability which are polymerized either grafting with blue luminescent monomers on the polymer backbones or adding fluorene to styrene monomers. The above blue light-emitting polymers have a high glass transition temperature and a 5%-weight-loss temperature above 400° C. Accordingly these polymers can be used as blue luminescent materials in the display devices and as luminescent cases for home appliances or cellular phones.
    Type: Application
    Filed: August 18, 2003
    Publication date: April 29, 2004
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Gwang Hoon Kwag, Eun Joo Park, Eun Il Kim, Jae Young Koh