Patents by Inventor Eun-Kyung Park

Eun-Kyung 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: 20210140979
    Abstract: A method of diagnosing a periodontal condition using a protein showing a concentration difference between periodontal tissue in a normal condition and an abnormal condition from a subject's saliva is provided. According to this non-invasive method, the patient himself is able to check the presence of periodontal disease and identify the time to receive a treatment at an early stage, which will allow the patient to save time and cost for the treatment of periodontitis.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 13, 2021
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Suk JI, Young Kyung KO, Joo Cheol PARK, Man Bock GU, Seong Min BAK, Eun Mi LEE, Yea Jin LEE, Geum Bit HWANG, Bang Hyun LEE
  • Patent number: 10999035
    Abstract: An operation method of a terminal in a non-orthogonal multiple access (NOMA) based communication system includes receiving information on a NOMA resource sequence allocated by a base station from the base station; and transmitting data to the base station by using a NOMA resource indicated by the information on the NOMA resource sequence in each data symbol or each data symbol group. Also, the NOMA resource sequence may indicate at least one NOMA resource in a NOMA resource set.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 4, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Heesoo Lee, Eun Kyung Kim, Tae Joong Kim, Hyun Seo Park, An Seok Lee, Yu Ro Lee, Hyun Lee
  • Publication number: 20210114411
    Abstract: Proposed is a rubber composition for a tire tread, which includes: a solution-polymerized elastomer having a conjugated diene-based monomer unit, a solution-polymerized elastomer having an aromatic vinyl monomer unit and a conjugated diene-based monomer unit, or a combination thereof, at 100 parts by weight; and a plasticizer containing an aromatic petroleum resin and an aliphatic olefin polymer, at 10 to 50 parts by weight. Further, a manufacturing method of the rubber composition for a tire tread is proposed.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 22, 2021
    Inventors: Jae Yun KIM, Yeong Min JUNG, Soo Jung PARK, Eun Kyung NOH, Dong Eun KANG
  • Patent number: 10961416
    Abstract: Disclosed is a semi-hardened pressure sensitive adhesive film to be used in the semi-hardened state and having excellent printing step absorption properties. The adhesive film according to the present invention contains a radial polymer composition and a cationic polymer composition, and the radial polymer composition is primarily cross-linked to maintain the semi-hardened state. When applied onto a substrate through a printing step, the present invention has excellent step absorption properties and adhesion properties and excellent durability even under high-temperature and high-humidity conditions.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: March 30, 2021
    Inventors: Min-Seok Song, Chan-Oh Yoon, Eun-Kyung Park, Bu-Gi Jung, Jang-Soon Kim
  • Patent number: 10787594
    Abstract: The present invention relates to an optical adhesive composition including: a thermosetting component including an isoprene-based rubber containing a carboxyl group, and a thermal curing agent; and a photo-curable component including an acrylic acid ester-based monomer, and a photoinitiator, in order to exhibit high barrier performance on the basis of a low water vapor transmission rate, and simultaneously, exhibit excellent adhesive performance by being applied to an optical device or a display device. In addition, the present invention provides an optical adhesive film including an adhesive layer including a photo-cured product of the optical adhesive composition, thereby obtaining advantages of ensuring an excellent cutting property and an excellent handling property, and improving a step difference absorbency.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: September 29, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Won Lee, Eun-Kyung Park, Tae-Yi Choi, Won-Gu Choi, Jang-Soon Kim
  • Patent number: 10647894
    Abstract: Provided is an adhesive composition for an optical use, including: a first isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol; and a second isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 5,000 g/mol to 100,000 g/mol, in which the first isobutylene-isoprene-based rubber and the second isobutylene-isoprene-based rubber each include a hydroxy group. Further, provided is an adhesive layer including a thermally cured product of the adhesive composition for optical use.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 12, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kwang Su Seo, Eun Kyung Park, Seung Won Lee, Jang Soon Kim, Tae Yi Choi
  • Publication number: 20200140725
    Abstract: The present invention relates to a rubber-based adhesive composition and a rubber-based adhesive using the same, the composition including: a rubber-based resin; and a rosin-based resin having at least one hydrophilic group.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Inventors: Seung-Won LEE, Eun-Kyung PARK, Won-Gu CHOI, Jang-Soon KIM, Sang-Hwan KIM, Tae-Yi CHOI
  • Publication number: 20200044246
    Abstract: A film-shaped coating layer including at least one lithium ion conductive compound having a band gap of 5.5 eV to 10 eV formed on the surface of a core including a lithium composite metal oxide to a thickness at which dielectric breakdown does not occur according to types of the lithium ion conductive compound and the lithium composite metal oxide under charge and discharge conditions. Thereby, an oxidation/reduction reaction is suppressed by blocking the movement of electrons at an interface between an active material and an electrolyte solution by the coating layer which surrounds the surface of particles and has lithium ion conductivity, and, as a result, a positive electrode active material for a secondary battery, which may improve energy density of an electrode and life characteristics of a battery, and a secondary battery including the same are provided.
    Type: Application
    Filed: September 29, 2017
    Publication date: February 6, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Eun Kyung PARK, Min Chul JANG, Chan Yeup CHUNG, Da Young SUNG, Chang Hun PARK
  • Patent number: 10522872
    Abstract: A polymer electrolyte for an all-solid battery, having a multi-layer structure is provided. An embodiment of the polymer electrolyte is a polymer electrolyte having a multi-layer structure, which includes a first polymer electrolyte layer and a second polymer electrolyte layer, where the EO:Li molar ratio of a poly(ethylene oxide)(PEO)-based polymer and a lithium salt is different between the first and second polymer electrolyte layers is provided. A solid polymer electrolyte of the present invention in the all-solid battery substantially reduces the interfacial resistance with lithium and the discharge overvoltage, resulting in a sufficient discharge capacity, which improves output characteristics and energy density.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 31, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dong Wook Ko, Doo Kyung Yang, Eun Kyung Park, Jong Hyun Chae
  • Patent number: 10446874
    Abstract: The present disclosure relates to a lithium sulfur battery comprising a negative electrode and a positive electrode disposed opposite to each other, a separator positioned between the negative electrode and the positive electrode, and a gel polymer electrolyte positioned between the separator and the positive electrode, wherein the gel polymer electrolyte comprises LiNO3. The present disclosure relates to a lithium sulfur battery preventing degeneration caused by a shuttle effect, and the lithium sulfur battery comprises a gel polymer electrolyte configured to inhibit a transfer of a polysulfide-based material to a negative electrode so as to prevent a loss of the polysulfide formed on a positive electrode surface during charge and discharge reactions, whereby, lifespan characteristics of the lithium sulfur battery are capable of being enhanced.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 15, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dong Wook Koh, Eun Kyung Park, Jong Hyun Chae, Doo Kyung Yang, Ki Young Kwon
  • Patent number: 10364380
    Abstract: The present invention provides an adhesive composition for optical use, which includes rubber and may be chemically cross-linked through an appropriate curing process, and as a result, may secure excellent long-term durability, water vapor transmission resistance, and chemical resistance, and includes an isobutylene-isoprene rubber having an acrylic acid ester-based functional group in a main chain thereof, a photoinitiator, and a tackifier in order to provide optical characteristics sufficient to be used for optical use. The present invention provides a method for preparing the adhesive composition for optical use, and it is possible to obtain the adhesive composition for optical use, which includes a chemically cross-linkable rubber by the method. Further, the present invention provides an adhesive film for optical use, and excellent long-term durability and optical characteristics may be implemented by applying the adhesive film for optical use to a wide range of electronic devices.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 30, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kwang Su Seo, Eun Kyung Park, Seung Won Lee, Jang Soon Kim, Won Gu Choi, Tae Yi Choi
  • Publication number: 20190112510
    Abstract: Provided is an adhesive composition for an optical use, including: a first isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol; and a second isobutylene-isoprene-based rubber having a weight average molecular weight (Mw) of 5,000 g/mol to 100,000 g/mol, in which the first isobutylene-isoprene-based rubber and the second isobutylene-isoprene-based rubber each include a hydroxy group. Further, provided is an adhesive layer including a thermally cured product of the adhesive composition for optical use.
    Type: Application
    Filed: April 4, 2017
    Publication date: April 18, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Kwang Su Seo, Eun Kyung Park, Seung Won Lee, Jang Soon Kim, Tae Yi Choi
  • Patent number: 10259977
    Abstract: Provided is an adhesive composition including: a (meth)acrylic acid ester-based photo-curable resin; and an oxygen-free di-functional diene-based rubber hardener.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Won-Ho Kim, Sle Lee, Chan-Oh Yoon, Jang-Soon Kim, Eun-Kyung Park, Bu-Gi Jung, Min-Jeong Kim, Sang-Hwan Kim
  • Patent number: 10227510
    Abstract: The present invention relates to an optical adhesive film including plate-type inorganic nanoparticles and a curable resin. The optical adhesive film has improved barrier characteristics to moisture and gas, improved light-transmittance, and excellent durability and peel characteristics.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: March 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Chan Oh Yoon, Sung Chan Park, Jang Soon Kim, Eun Kyung Park, Bu Gi Jung, Won Ho Kim
  • Publication number: 20190067702
    Abstract: The present invention relates to a lithium secondary battery, and in particular, to a lithium secondary battery having lithium, a negative electrode active material, formed on a positive electrode side. In the lithium secondary battery according to the present invention, coating is performed while being blocked from the atmosphere through a process of forming a lithium thin film on a negative electrode current collector, and therefore, formation of a surface oxide layer of lithium metal caused by oxygen and moisture in the atmosphere can be suppressed, which resultantly leads to an effect of enhancing a cycle life property.
    Type: Application
    Filed: January 6, 2017
    Publication date: February 28, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Byoung Kuk SON, Min Chul JANG, Jung Hun CHOI, Eun Kyung PARK, Chang Hun PARK
  • Patent number: 10174224
    Abstract: Provided is a urethane adhesive composition for a touch panel having a glass transition temperature between ?20° C. to ?50° C., and which, as a cured composition, has an elasticity of 50,000 Pa to 70,000 Pa at 60° C. to 80° C.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: January 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Chan Oh Yoon, Eun Kyung Park, Jaegwan Lee, Jang Soon Kim, Bu Gi Jung, Sung Chan Park, Won Ho Kim
  • Patent number: 10147942
    Abstract: The present invention relates to a multi-layer structured lithium metal electrode and a method for manufacturing the same and, specifically, to a multi-layer structured lithium metal electrode comprising: a buffer layer of lithium nitride (Li3N) formed on a lithium metal plate; and a protective layer of LiBON formed on the buffer layer, and to a method for manufacturing a multi-layer structured lithium metal electrode by continuously forming a lithium nitride buffer layer and a LiBON protective layer on a lithium metal plate through continuous reactive sputtering multi-layer structured lithium metal electrode multi-layer structured lithium metal electrode lithium metal plate multi-layer structured lithium metal electrode lithium metal plate. The multi-layer structured lithium metal electrode of the present invention can protect the reactivity of the lithium metal from moisture or an environment within a battery, and prevent the formation of dendrites, by forming the protective layer.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 4, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Byoung Kuk Son, Min Chul Jang, Eun Kyung Park, Doo Kyung Yang, Jung Hun Choi
  • Patent number: 10144854
    Abstract: Provided are an adhesive composition for a touch panel, including: a hydrophilic functional group-containing monomer and an adhesion promoter, wherein a dielectric constant at a frequency of 100 kHz to 2 MHz is 3.5 or less, and a storage modulus is 1.0×105 Pa to 7.0×105 Pa at 25° C. to 85° C., and an adhesive film including an adhesive layer including a cured product of the adhesive composition for a touch panel. In addition, provided is a touch panel including: a conductive plastic film having a conductive layer formed on one surface; and an adhesive layer attached onto the conductive layer and including a cured product of the adhesive composition for a touch panel.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: December 4, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Chan Oh Yoon, Eun Kyung Park, Bu Gi Jung, Jang Soon Kim, Sung Chan Park, Won Ho Kim
  • Publication number: 20180208798
    Abstract: Disclosed is a semi-hardened pressure sensitive adhesive film to be used in the semi-hardened state and having excellent printing step absorption properties. The adhesive film according to the present invention contains a radial polymer composition and a cationic polymer composition, and the radial polymer composition is primarily cross-linked to maintain the semi-hardened state. When applied onto a substrate through a printing step, the present invention has excellent step absorption properties and adhesion properties and excellent durability even under high-temperature and high-humidity conditions.
    Type: Application
    Filed: March 27, 2018
    Publication date: July 26, 2018
    Inventors: Min-Seok Song, Chan-Oh Yoon, Eun-Kyung Park, Bu-Gi Jung, Jang-Soon Kim
  • Publication number: 20180159169
    Abstract: The present invention relates to a polymer electrolyte for an all-solid battery, having a multi-layer structure and, more particularly, to a polymer electrolyte having a multi-layer structure, which comprises a first polymer electrolyte layer and a second polymer electrolyte layer, wherein the EO:Li molar ratio of a poly(ethylene oxide) (PEO)-based polymer and a lithium salt is different between the first and second polymer electrolyte layers. The application of the solid polymer electrolyte of the present invention to the all-solid battery can remarkably reduce the interfacial resistance with lithium and the discharge overvoltage, resulting in a sufficient discharge capacity, and can improve output characteristics and energy density.
    Type: Application
    Filed: October 28, 2016
    Publication date: June 7, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Dong Wook KO, Doo Kyung YANG, Eun Kyung PARK, Jong Hyun CHAE