Patents by Inventor Jeong Yu
Jeong Yu 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: 20250112485Abstract: Systems and methods for charging protocols for secondary batteries are provided including: measuring an open-circuit voltage (Vref) according to a state-of-charge (SOCx) for a two-electrode cell, charged with a reference current; measuring second open-circuit voltages (Vc) according to the state-of-charge when charging the cell with a plurality of different charging currents; calculating an internal resistance value (RSOCx) according to the state-of-charge using an equation (RSOCx)=(Vc?Vref)/Ic for the different charging currents, wherein Ic is a value for the different charging currents, and computing a charging current-specific internal resistance profile mapping the internal resistance value according to the state-of-charge for the different charging currents; and identifying, for the charging current-specific internal resistance profiles, each inflection point, determining a lowest resistance value among the inflection points as a reference value, and determining, for the computed charging current-specifiType: ApplicationFiled: November 8, 2023Publication date: April 3, 2025Inventors: Yeo Kyung Yoon, Jeong In Yu, Yong Jun Kim
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Publication number: 20250076397Abstract: A battery depth-of-charge calculation apparatus includes a processor and memory having programmed thereon instructions that, when executed, are configured cause the processor to receive a measured open circuit voltage (OCV) value with respect to a state of charge (SoC) of a battery cell and information about a voltage value with respect to the SoC of the battery cell during charge, compute an inner resistance value with respect to the SoC of the battery cell during charge, based on the information about the voltage value with respect to the SoC of the battery cell during charge and the open circuit voltage value with respect to the SoC of the battery cell, compute a negative electrode depth-of-charge of the battery cell based on the inner resistance value.Type: ApplicationFiled: December 29, 2022Publication date: March 6, 2025Applicant: LG Energy Solution, Ltd.Inventors: Jeong In Yu, Yeo Kyung Yoon, Yong Jun Kim
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Publication number: 20240353497Abstract: A charge protocol inspection apparatus including an information obtaining unit is configured to obtain information about a charge protocol of a battery cell, an open circuit voltage (OCV) corresponding to a state of charge (SoC) of the battery cell, and a reference internal resistance of the battery cell, calculate an internal resistance of the battery cell during charge based on the information about the charge protocol and the OCV corresponding to the SoC of the battery cell, and compare the reference internal resistance of the battery cell with the internal resistance of the battery cell during charge.Type: ApplicationFiled: September 30, 2022Publication date: October 24, 2024Applicant: LG Energy Solution, Ltd.Inventors: Yeo Kyung Yoon, Jeong In Yu, Yong Jun Kim
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Publication number: 20240027906Abstract: A photosensitive resin composition includes: (A) a binder resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a quantum dot surface-modified with a compound having a thiol group at one terminal end and an alkoxy group, a cycloalkyl group, a carboxyl group, or a hydroxy group at the other terminal end; and (E) a solvent. A curable composition includes: (A?) a resin; (B?) a quantum dot surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2; and (C?) a solvent. A method of manufacturing the surface-modified quantum dot, and a color filter manufactured using the photosensitive resin composition or the curable composition are also disclosed.Type: ApplicationFiled: August 8, 2023Publication date: January 25, 2024Inventors: Jinsuop YOUN, Misun KIM, Hong Jeong YU, Bumjin LEE, Yonghee KANG, Dongjun KIM, Byeonggeun SON, Jihyeon YIM, Mi Jeong CHOI, Jonggi KIM, Minjee PARK, Hojeong PAEK, Woo Jung SHIN, Young Woong JANG
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Patent number: 11762289Abstract: A photosensitive resin composition includes: (A) a binder resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a quantum dot surface-modified with a compound having a thiol group at one terminal end and an alkoxy group, a cycloalkyl group, a carboxyl group, or a hydroxy group at the other terminal end; and (E) a solvent. A curable composition includes: (A?) a resin; (B?) a quantum dot surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2; and (C?) a solvent. A method of manufacturing the surface-modified quantum dot, and a color filter manufactured using the photosensitive resin composition or the curable composition are also disclosed.Type: GrantFiled: October 9, 2018Date of Patent: September 19, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Jinsuop Youn, Misun Kim, Hong Jeong Yu, Bumjin Lee, Yonghee Kang, Dongjun Kim, Byeonggeun Son, Jihyeon Yim, Mi Jeong Choi, Jonggi Kim, Minjee Park, Hojeong Paek, Woo Jung Shin, Young Woong Jang
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Publication number: 20230271186Abstract: A point-of-care device for detecting nucleic acid is disclosed. The point-of-care device for detecting nucleic acid according to an exemplary embodiment of the present invention includes a rotating body in which a plurality of test tubes containing a sample mixed with heat-generating particles that generate heat when irradiated with light beams are radially coupled around a rotation shaft; a first actuator for rotating the rotating body such that the test tube rotates about the rotation shaft; and an irradiation module for irradiating the light beams to an irradiated area which is set on a rotation path of the test tube, wherein the rotation path includes a non-irradiated area to which the light beams are not irradiated, and wherein the test tube proceeds through the irradiated area and the non-irradiated area on the rotation path according to the rotation of the rotating body.Type: ApplicationFiled: July 30, 2021Publication date: August 31, 2023Inventors: Jinwoo Cheon, Jae-Hyun Lee, Jiyong Cheong, Ho Jeong Yu, Hakho Lee
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Patent number: 11522172Abstract: A negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium battery including the same. An adhesive layer including a binder and a conductive material between the negative current collector and the negative active material improves conductivity while also improving adherence between a negative current collector and a negative active material of the lithium battery.Type: GrantFiled: August 1, 2019Date of Patent: December 6, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventor: Jeong In Yu
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Patent number: 11145889Abstract: Disclosed is a lithium metal secondary battery which includes: an electrode assembly including a negative electrode, a positive electrode and a separator interposed between the negative electrode and the positive electrode; a non-aqueous electrolyte with which the electrode assembly is impregnated; and a battery casing in which the electrode assembly and the non-aqueous electrolyte are received, wherein the negative electrode includes a negative electrode current collector and a lithium metal layer formed on at least one surface of the negative electrode current collector, the charge/discharge condition of the lithium metal secondary battery includes charging the lithium metal secondary battery under a pressurized state and discharging the lithium metal secondary battery under a non-pressurized or pressurized state, and when the lithium secondary battery is discharged under a pressurized state, the pressure applied during discharge is controlled to be smaller than the pressure applied during charge.Type: GrantFiled: April 5, 2019Date of Patent: October 12, 2021Assignee: LG Chem, Ltd.Inventors: Kyung-Hwa Woo, Hyun-Woong Yun, Jeong-In Yu, Jong-Keon Yoon
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Patent number: 10822449Abstract: Provided are a low temperature curing composition, a cured film obtained by curing the composition, and an electronic device comprising the cured film, wherein the composition comprises: (A) an epoxy group-containing siloxane compound represented by Chemical Formula 1: (R1R2R3SiO1/2)M(R4R5SiO2/2)D1(R6SiO3/2)T1(R7R8SiO2/2)D2(R9SiO3/2)T2??[Chemical Formula 1] (In Chemical Formula 1, each of R1 to R9 is an organic group independently selected from a substituted or unsubstituted monovalent aliphatic hydrocarbon group of C1 to C6, a substituted or unsubstituted monovalent cycloaliphatic hydrocarbon group of C6 to C20, a substituted or unsubstituted monovalent aromatic hydrocarbon group of C6 to C20, and an epoxy-substituted monovalent organic group, at least one of R1 to R6 is an epoxy-substituted monovalent organic group, 0?M<1, 0?D1<1, 0<T?1, 0?D2<1, 0?T2<1, and M+D1+T1+D2+T2=1, wherein each of the structural units represented by M, D1, T1, D2, and T2 can include one or more types of different sType: GrantFiled: August 1, 2016Date of Patent: November 3, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Doori Song, Woo Han Kim, Dongju Shin, Hong Jeong Yu, Jiho Lee
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Publication number: 20200259163Abstract: A negative electrode for a lithium metal battery, a manufacturing method thereof, and a lithium battery including the same. An adhesive layer including a binder and a conductive material between the negative current collector and the negative active material improves conductivity while also improving adherence between a negative current collector and a negative active material of the lithium battery.Type: ApplicationFiled: August 1, 2019Publication date: August 13, 2020Applicant: LG CHEM, LTD.Inventor: Jeong In YU
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Publication number: 20190341647Abstract: Disclosed is a lithium metal secondary battery which includes: an electrode assembly including a negative electrode, a positive electrode and a separator interposed between the negative electrode and the positive electrode; a non-aqueous electrolyte with which the electrode assembly is impregnated; and a battery casing in which the electrode assembly and the non-aqueous electrolyte are received, wherein the negative electrode includes a negative electrode current collector and a lithium metal layer formed on at least one surface of the negative electrode current collector, the charge/discharge condition of the lithium metal secondary battery includes charging the lithium metal secondary battery under a pressurized state and discharging the lithium metal secondary battery under a non-pressurized or pressurized state, and when the lithium secondary battery is discharged under a pressurized state, the pressure applied during discharge is controlled to be smaller than the pressure applied during charge.Type: ApplicationFiled: April 5, 2019Publication date: November 7, 2019Applicant: LG CHEM, LTD.Inventors: Kyung-Hwa WOO, Hyun-Woong YUN, Jeong-In YU, Jong-Keon YOON
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Patent number: 10290903Abstract: Disclosed is a jellyroll-type electrode assembly including a first electrode, a second electrode, and a separator interposed between the electrodes folded together, in which the first electrode has a non-coating part and a first electrode tab attached onto the non-coating part, the non-coating part representing a part of the first electrode not coated with an active material, and the at least double-folded-layer separator is disposed between the first electrode tab and the second electrode.Type: GrantFiled: November 12, 2014Date of Patent: May 14, 2019Assignee: LG Chem, Ltd.Inventors: Je-Jun Lee, Pil-Kyu Park, Jeong-In Yu, Cha-Hun Ku
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Publication number: 20190129302Abstract: A photosensitive resin composition includes: (A) a binder resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a quantum dot surface-modified with a compound having a thiol group at one terminal end and an alkoxy group, a cycloalkyl group, a carboxyl group, or a hydroxy group at the other terminal end; and (E) a solvent. A curable composition includes: (A?) a resin; (B?) a quantum dot surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2; and (C?) a solvent. A method of manufacturing the surface-modified quantum dot, and a color filter manufactured using the photosensitive resin composition or the curable composition are also disclosed.Type: ApplicationFiled: October 9, 2018Publication date: May 2, 2019Inventors: Jinsuop YOUN, Misun KIM, Hong Jeong YU, Bumjin LEE, Yonghee KANG, Dongjun KIM, Byeonggeun SON, Jihyeon YIM, Mi Jeong CHOI, Jonggi KIM, Minjee PARK, Hojeong PAEK, Woo Jung SHIN, Young Woong JANG
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Publication number: 20180162989Abstract: Provided are a low temperature curing composition, a cured film obtained by curing the composition, and an electronic device comprising the cured film, wherein the composition comprises: (A) an epoxy group-containing siloxane compound represented by Chemical Formula 1: (R1R2R3SiO1/2)M(R4R5SiO2/2)D1(R6SiO3/2)T1(R7R8SiO2/2)D2(R9SiO3/2)T2 ??[Chemical Formula 1] (In Chemical Formula 1, each of R1 to R9 is an organic group independently selected from a substituted or unsubstituted monovalent aliphatic hydrocarbon group of C1 to C6, a substituted or unsubstituted monovalent cycloaliphatic hydrocarbon group of C6 to C20, a substituted or unsubstituted monovalent aromatic hydrocarbon group of C6 to C20, and an epoxy-substituted monovalent organic group, at least one of R1 to R6 is an epoxy-substituted monovalent organic group, 0?M<1, 0?D1<1, 0<T?1, 0?D2<1, 0?T2<1, and M+D1+T1+D2+T2=1, wherein each of the structural units represented by M, D1, T1, D2, and T2 can include one or more types of differentType: ApplicationFiled: August 1, 2016Publication date: June 14, 2018Inventors: Doori SONG, Woo Han KIM, Dongju SHIN, Hong Jeong YU, Jiho LEE
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Publication number: 20160126598Abstract: Disclosed is a jellyroll-type electrode assembly including a first electrode, a second electrode, and a separator interposed between the electrodes folded together, in which the first electrode has a non-coating part and a first electrode tab attached onto the non-coating part, the non-coating part representing a part of the first electrode not coated with an active material, and the at least double-folded-layer separator is disposed between the first electrode tab and the second electrode.Type: ApplicationFiled: November 12, 2014Publication date: May 5, 2016Applicant: LG Chem, Ltd.Inventors: Je-Jun Lee, Pil-Kyu Park, Jeong-In Yu, Cha-Hun Ku
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Publication number: 20110290184Abstract: Provided is a poly silicon deposition device, which includes an electrode part, a silicon core rod part, a silicon core rod heating part, a gas supply pipe, and a gas injection part. The electrode part includes a first electrode and a second electrode which are disposed in a bottom of a reactor including a gas inlet for introducing source gas, a gas outlet for discharging gas, and a heating material inlet for introducing a heating material, and are spaced a predetermined distance from each other. The silicon core rod part receives electric current from the first electrode and transmits the electric current to the second electrode to generate heat. The silicon core rod heating part is spaced a predetermined distance from the silicon core rod part and surrounds the silicon core rod part and includes a heater receiving the heating material introduced through the heating material inlet of the reactor.Type: ApplicationFiled: November 25, 2009Publication date: December 1, 2011Applicant: Semi-Materials Co. LtdInventors: Ho-Jeong Yu, Seong-Eun Park, Il-Soo Eom
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Publication number: 20050248707Abstract: Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display uses at least one A-plate and adjusts the optical axis direction and the retardation value of the A-plate, thereby improving the contrast characteristic at a front and at a predetermined inclination angle of the in-plane switching liquid crystal display while minimizing a color shift according to viewing angles in the black state.Type: ApplicationFiled: March 28, 2005Publication date: November 10, 2005Applicant: LG Chem, Ltd.Inventors: Byoung Jeon, Sergey Belyaev, Jeong Yu, Nikolay Malimonenko, Jun Jang
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Publication number: 20050200792Abstract: The present invention relates to an in-plane switching liquid crystal display comprising a negative biaxial retardation film and a positive C-plate, as viewing-angle compensation films. By the use of such viewing-angle compensation films, the contrast characteristics at the front side and inclination angle of the in-plane switching liquid crystal display can be improved and color shift with viewing angle in the dark state can be minimized.Type: ApplicationFiled: January 7, 2005Publication date: September 15, 2005Applicant: LG CHEM, LTDInventors: Byoung Jeon, Sergey Belyaev, Jeong Yu, Nikolay Malimonenko
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Publication number: 20050140900Abstract: Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display improves the contrast characteristic at a front and at a predetermined inclination angle thereof by using a +A-plate and a +C-plate while minimizing a color shift according to viewing angles in the black state.Type: ApplicationFiled: October 21, 2004Publication date: June 30, 2005Applicant: LG CHEM, LTD.Inventors: Byoung Jeon, Serey Belyaev, Jeong Yu, Nikolay Malimonenko
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Publication number: 20050110933Abstract: Disclosed is an in-plane switching liquid crystal display, which uses a positive biaxial retardation film while adjusting an optical axis direction and the retardation value of the positive biaxial retardation film. The in-plane switching liquid crystal display improves the contrast characteristic at a predetermined angular position as well as at a front position thereof, so a color shift according to the viewing angle in the black state is minimized.Type: ApplicationFiled: November 19, 2004Publication date: May 26, 2005Inventors: Byoung Jeon, Serey Belyaev, Jeong Yu, Nikolay Malimonenko