Patents by Inventor Jun Muk Lim

Jun Muk 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).

  • Publication number: 20210057749
    Abstract: A positive electrode includes: a current collector; and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer includes a positive electrode active material, a conductive material, and a binder, the conductive material contains at least one of carbon black or a carbon nanotube and the binder contains polyvinylidene fluoride to which a functional group is bonded, and the functional group has a carboxyl group, and in the polyvinylidene fluoride to which the functional group is bonded.
    Type: Application
    Filed: February 22, 2019
    Publication date: February 25, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Jun Muk Lim, Joo Yul Baek, Sang Hoon Choy
  • Patent number: 10902968
    Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 26, 2021
    Inventors: Tea Gon Kim, Je Young Kim, Hak Yoon Kim, Ki Won Sung, Ye Lin Kim, Joo Yul Baek, Jung Keun Yoo, Jun Muk Lim, Seul Ki Kim
  • Publication number: 20200373559
    Abstract: A positive electrode includes a current collector and a positive electrode active material layer disposed on the current collector, wherein the positive electrode active material layer includes a positive electrode active material, carbon nanotube, and a binder, the binder includes polyvinylidene fluoride which has a weight average molecular weight of 720,000 g/mol to 980,000 g/mol, a BET specific surface area of the carbon nanotube is 140 m2/g to 195 m2/g, and the positive electrode satisfies the following Formula 1: 1.3?B/A?3.4??[Formula 1] in Formula 1, B is an amount (wt %) of the polyvinylidene fluoride in the positive electrode active material layer, and A is an amount (wt %) of the carbon nanotube in the positive electrode active material layer.
    Type: Application
    Filed: February 19, 2019
    Publication date: November 26, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Joo Yul Baek, Jun Muk Lim, Chang Ju Lee, Il Geun Oh, Je Young Kim, Sang Hoon Choy
  • Publication number: 20200363099
    Abstract: The present invention relates to a smoke tube boiler including: a mix chamber which includes a mixing space in which combustion gas and air are mixed, a mix chamber body having a flat shape, and a flat plate-shaped burner disposed in a horizontal direction above a combustion chamber; and a heat exchanger which includes an outer shell forming an outer wall of a water tank into and from which a heat medium is introduced and discharged and which accommodates the heat medium, an upper tube plate having an end plate structure that is coupled to the outer shell and configured to form the combustion chamber, a plurality of tubes formed in a flat shape that are configured to allow combustion gas generated in the combustion chamber to flow therein and cause a heat exchange to occur between the combustion gas and the heat medium flowing outside the tubes, turbulators coupled to an inner side of the tube and configured to induce occurrence of a turbulent flow in the flow of the combustion gas, multi-stage barriers dispo
    Type: Application
    Filed: December 11, 2018
    Publication date: November 19, 2020
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Jun Kyu PARK, Sung Jun AHN, Hyun Muk LIM
  • Publication number: 20200358103
    Abstract: A secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the positive electrode includes a current collector and a positive electrode active material layer disposed on the current collector, the positive electrode active material layer includes a positive electrode active material and carbon nanotubes, and the electrolyte solution includes a non-aqueous solvent, a lithium salt, and tetravinylsilane.
    Type: Application
    Filed: February 22, 2019
    Publication date: November 12, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Joo Yul Baek, Young Min Lim, Jun Muk Lim, Sang Hoon Choy, Chul Haeng Lee
  • Publication number: 20200292238
    Abstract: A shell-and-tube heat exchanger according to the present invention comprises: an outer barrel having a cavity provided therein such that heating water flows along the same; a lower tube plate that covers an opening near one end of the outer barrel; an upper tube plate that covers an opening near the other end of the outer barrel, the upper tube plate providing an inner space in which a heat source is positioned; a plurality of flues for guiding combustion gas from the upper tube plate to the outside of the lower tube plate; and a main diaphragm arranged across a reference direction between the lower tube plate and the upper tube plate, a plurality of through-holes being formed in the main diaphragm such that the flues penetrate the same, wherein at least some of the through-holes constitute a large-width through-hole (single hole) that at least two of the flues penetrate together.
    Type: Application
    Filed: September 20, 2018
    Publication date: September 17, 2020
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Jun Kyu Park, Sung Jun Ahn, Hyun Muk Lim
  • Publication number: 20200278113
    Abstract: A flame hole unit structure of a combustion apparatus provided with a plurality of flame holes for forming a flame comprises: a lean flame hole unit including, as a flame hole for jetting lean gas, at least one lean flame hole extending along the longitudinal direction which is a direction perpendicular to the jetting direction of the lean gas; and a rich flame hole unit including, as a flame hole for jetting rich gas, a pair of rich flame hole provided on both sides of the lean flame hole unit with respect to a width direction which is a direction perpendicular to the jetting direction and the longitudinal direction and extending along a direction parallel to the longitudinal direction.
    Type: Application
    Filed: September 14, 2018
    Publication date: September 3, 2020
    Applicant: KYUNGDONG NAVIEN CO., LTD.
    Inventors: Jun Kyu PARK, Hyun Muk LIM
  • Publication number: 20200126684
    Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.
    Type: Application
    Filed: June 8, 2018
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Tea Gon Kim, Je Young Kim, Hak Yoon Kim, Ki Won Sung, Ye Lin Kim, Joo Yul Baek, Jung Keun Yoo, Jun Muk Lim, Seul Ki Kim
  • Patent number: 10508970
    Abstract: Disclosed are a system and a method for precisely measuring a structure are disclosed. A reference meter installed at a fixed location provides GPS reference information. A plurality of response meters, respectively installed at a plurality of positions of the structure, acquire acceleration information through acceleration sensors and measure a plurality of real-time kinematic (RTK) displacement data based on the GPS reference information, respectively. The response meters synchronize acceleration information with the plurality of RTK displacement data measured to generate into a packet to be transmitted. An operation processor receives the acceleration information and the plurality of RTK displacement data and calculates structure response information. With the GPS and accelerometers, the dynamic behaviors of structures including high-rise buildings, bridges, dams, and harbors can be precisely measured.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: December 17, 2019
    Assignees: POONGSAN FNS CORPORATION, Korea Advanced Institute of Science and Technology
    Inventors: Nam-Yeol Kwon, Doo-Young Kang, Seung-Beom Park, Min-Jae Kim, Jae-Min Moon, Hyeon-Muk Lim, Jin-Seok Kang, Hoon Sohn, Ki-Young Kim, Gun-Hee Koo, Jae-Muk Choi, Jun-Yeon Chung
  • Publication number: 20190346339
    Abstract: Disclosed are a system and a method for precisely measuring a structure are disclosed. A reference meter installed at a fixed location provides GPS reference information. A plurality of response meters, respectively installed at a plurality of positions of the structure, acquire acceleration information through acceleration sensors and measure a plurality of real-time kinematic (RTK) displacement data based on the GPS reference information, respectively. The response meters synchronize acceleration information with the plurality of RTK displacement data measured to generate into a packet to be transmitted. An operation processor receives the acceleration information and the plurality of RTK displacement data and calculates structure response information. With the GPS and accelerometers, the dynamic behaviors of structures including high-rise buildings, bridges, dams, and harbors can be precisely measured.
    Type: Application
    Filed: January 29, 2018
    Publication date: November 14, 2019
    Applicants: Poongsan FNS Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Nam-Yeol Kwon, Doo-Young Kang, Seung-Beom Park, Min-Jae Kim, Jae-Min Moon, Hyeon-Muk Lim, Jin-Seok Kang, Hoon Sohn, Ki-Young Kim, Gun-Hee Koo, Jae-Muk Choi, Jun-Yeon Chung