Patents by Inventor Jeong-Kyu Lee
Jeong-Kyu Lee 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).
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Publication number: 20240116791Abstract: The present disclosure relates to a toxic waste treatment process and treatment apparatus including: a temperature raising operation of raising a temperature of a toxic waste solid to a heat treatment temperature selected from 300° C. to 600° C. at an average temperature raising rate of 5° C./min or less; and a heat treatment operation of heat-treating the toxic waste solid at the heat treatment temperature.Type: ApplicationFiled: September 14, 2022Publication date: April 11, 2024Applicant: LG Chem, Ltd.Inventors: Manki Cho, Hyun Woog Ryu, Bonsik Joo, Jeong Kyu Kim, Yeon Hwa Lee
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Patent number: 11950374Abstract: An apparatus that communicates with a screen printer and a solder inspection device is disclosed. The apparatus according to the present disclosure may include a process that is configured to: obtain first information associated with each of a plurality of pads on the substrate; obtain second information associated with each piece of the solder paste applied to each of the plurality of pads from the solder inspection device; determine a position correction value for the stencil mask with respect to the substrate based on the first information and the second information; and deliver the position correction value to the screen printer.Type: GrantFiled: October 28, 2021Date of Patent: April 2, 2024Assignee: KOH YOUNG TECHNOLOGY INC.Inventors: Duk Young Lee, Jae Hyung Kim, Jeong Kyu Noh
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Publication number: 20240106020Abstract: Provided is a method for recovering and reusing an active material from a positive electrode scrap.Type: ApplicationFiled: August 1, 2022Publication date: March 28, 2024Inventors: Eun-Kyu SEONG, Min-Seo KIM, Se-Ho PARK, Yong-Sik SEO, Doo-Kyung YANG, Jeong-Bae LEE
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Publication number: 20240101738Abstract: An ethylene/alpha-olefin copolymer having excellent physical properties showing reduced immersion time of a crosslinking agent and a high degree of crosslinking, and a composition for an encapsulant film, comprising the same, is described herein.Type: ApplicationFiled: October 28, 2022Publication date: March 28, 2024Applicant: LG Chem, Ltd.Inventors: Jin Sam Gong, Eun Jung Lee, Jeong Yon Jeong, Young Woo Lee, Jung Kyu Lee, Si Jung Lee, Hye Ji Lee
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Publication number: 20240097238Abstract: A battery pack is advantageous for effective control and maintenance of thermal events. A battery pack according to one aspect of the present disclosure may include a battery module having one or more battery cells; a fire extinguishing tank holding a fire extinguishing liquid, disposed on top of the battery module and having a through hole formed therein; and a cover member installed in the through hole of the fire extinguishing tank and configured to open or close the through hole according to a change in internal pressure of the fire extinguishing tank.Type: ApplicationFiled: December 20, 2022Publication date: March 21, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jong-Kyu AHN, Ki-Youn KIM, Hyeon-Kyu KIM, Jeong-O MUN, Gi-Dong PARK, Young-Won YUN, Seong-Ju LEE, Jae-Ki LEE
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Publication number: 20240088416Abstract: An air supply control method of a fuel cell controls an amount of air supplied to the fuel cell according to an output of power required to be generated by the fuel cell. The method includes steps of: monitoring a charging level of a power storage device that stores power output from the fuel cell; modifying the amount of air supplied to the fuel cell on the basis of the monitored charging level of the power storage device; and controlling an air supply system that supplies air to the fuel cell on the basis of the modified amount of air supplied.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Inventors: Seung Yoon Lee, Sae Byeok Seung, Jeong Kyu Park, Sang Chul Yeom
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Publication number: 20230183418Abstract: A biopolymer, which exists in a liquid phase at room temperature, a use thereof, and a preparation method therefor are provided.Type: ApplicationFiled: March 9, 2017Publication date: June 15, 2023Inventors: Jae Hyung KIM, Dong Gyun KANG, Chul Woong KIM, Young Hyun CHO, Sung Joon OH, Jeong Kyu LEE, In Young HUH
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Patent number: 11630355Abstract: A display device is disclosed. The display device includes a display panel configured to display an image, and a printed circuit board electrically connected to the display panel and disposed at a back surface of the display panel. The printed circuit board includes an insulating layer, a first metal layer disposed at one surface of the insulating layer, pads including a first pad disposed on the first metal layer while being disposed inside a mounting area where an integrated circuit is mounted, and second pads disposed around the first pad, and a groove provided to extend from an inside of the mounting area to an outside of the mounting area.Type: GrantFiled: December 3, 2020Date of Patent: April 18, 2023Assignee: LG Display Co., Ltd.Inventors: Jeong-Kyu Lee, Dong-Won Park, Min-Gyu Park, Nam-Kon Ko
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Patent number: 11552288Abstract: A method for quantitatively analyzing cohesive failure of an electrode analyzes cohesive failure of an electrode and includes preparing an electrode in which an electrode material mixture layer including an electrode active material, a conductive agent, and a binder is formed on a current collector, measuring shear strength (?) data according to a cutting depth while cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), obtaining a regression curve of shear strength according to the cutting depth from the shear strength (?) data, and determining a cutting depth, at which the shear strength is minimum in the regression curve, as a location of cohesive failure.Type: GrantFiled: August 18, 2020Date of Patent: January 10, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: In Young Song, Joo Yul Baek, Jeong Kyu Lee, Sung Joon Oh, Jong Chan Lee
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Patent number: 11535957Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.Type: GrantFiled: November 22, 2017Date of Patent: December 27, 2022Assignee: LG CHEM, LTD.Inventors: Jeong Kyu Lee, Chang Hun Kim, In Young Song, Jeong Hun Cho, Jong Soo Do, Sung Joon Oh, Joon Hee Cho
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Patent number: 11275199Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: GrantFiled: March 11, 2020Date of Patent: March 15, 2022Assignee: LG CHEM, LTD.Inventors: Jin Seok Byun, Jeong Kyu Lee, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang
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Patent number: 11262481Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: GrantFiled: March 11, 2020Date of Patent: March 1, 2022Assignee: LG CHEM, LTD.Inventors: Jin Seok Byun, Jeong Kyu Lee, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang
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Publication number: 20210173248Abstract: A display device is disclosed. The display device includes a display panel configured to display an image, and a printed circuit board electrically connected to the display panel and disposed at a back surface of the display panel. The printed circuit board includes an insulating layer, a first metal layer disposed at one surface of the insulating layer, pads including a first pad disposed on the first metal layer while being disposed inside a mounting area where an integrated circuit is mounted, and second pads disposed around the first pad, and a groove provided to extend from an inside of the mounting area to an outside of the mounting area.Type: ApplicationFiled: December 3, 2020Publication date: June 10, 2021Inventors: Jeong-Kyu LEE, Dong-Won PARK, Min-Gyu PARK, Nam-Kon KO
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Publication number: 20210057728Abstract: A method for quantitatively analyzing cohesive failure of an electrode analyzes cohesive failure of an electrode and includes preparing an electrode in which an electrode material mixture layer including an electrode active material, a conductive agent, and a binder is formed on a current collector, measuring shear strength (?) data according to a cutting depth while cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), obtaining a regression curve of shear strength according to the cutting depth from the shear strength (?) data, and determining a cutting depth, at which the shear strength is minimum in the regression curve, as a location of cohesive failure.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Applicant: LG CHEM, LTD.Inventors: In Young SONG, Joo Yul BAEK, Jeong Kyu LEE, Sung Joon OH, Jong Chan LEE
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Publication number: 20210057719Abstract: An electrode for a secondary battery including a current collector, and at least one electrode material mixture layer on a surface of the current collector, the electrode material mixture layer including a negative electrode active material, a conductive agent, and a binder wherein, the electrode has a property such that in a regression curve obtained by regression analysis of shear strength data according to a cutting depth which are measured while obliquely cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), a ratio of a maximum value (?max) to a minimum value (?min) of shear strength is 1.7 or less.Type: ApplicationFiled: August 18, 2020Publication date: February 25, 2021Applicant: LG CHEM, LTD.Inventors: In Young SONG, Joo Yul BAEK, Jeong Kyu LEE, Sung Joon OH, Jong Chan LEE
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Patent number: 10858465Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.Type: GrantFiled: October 25, 2017Date of Patent: December 8, 2020Assignee: LG CHEM, LTD.Inventors: Jeong Kyu Lee, Pum Suk Park, In Young Song, Sung Joon Oh, Yi Young Choi, Soon Ho Sun
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Publication number: 20200278478Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: ApplicationFiled: March 11, 2020Publication date: September 3, 2020Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Jeong Kyu LEE, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Publication number: 20200278479Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: ApplicationFiled: March 11, 2020Publication date: September 3, 2020Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Jeong Kyu LEE, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Patent number: 10703897Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.Type: GrantFiled: September 30, 2015Date of Patent: July 7, 2020Assignee: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Sung Joon Oh, Yeon Joo Kang, Jung Keun Kim, In Young Song, Sung Soo Yoon
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Publication number: 20200149196Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.Type: ApplicationFiled: November 22, 2017Publication date: May 14, 2020Inventors: Jeong Kyu LEE, Chang Hun KIM, In Young SONG, Jeong Hun CHO, Jong Soo DO, Sung Joon OH, Joon Hee CHO