Patents by Inventor Ji Ryu
Ji Ryu 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: 20240136674Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.Type: ApplicationFiled: January 19, 2022Publication date: April 25, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI
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Publication number: 20240128517Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.Type: ApplicationFiled: January 19, 2022Publication date: April 18, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Do-Gyun KIM, Su-Ji CHOI, Kwang-Su HWANGBO, Geon-Woo MIN, Min-Ki JO, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Pil-Kyu PARK
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Patent number: 11958987Abstract: The present disclosure relates to a cover window for a flexible display device including a polymer substrate including a polyamide resin; and a hard coating layer formed on at least one surface of the polymer substrate, wherein a yellow index of the polymer substrate measured in accordance with STM E 313 is 4.00 or less, and an elastic modulus of the polymer substrate measured at a strain rate of 12.5 mm/min in accordance with ISO 527-3 is 4 to 9 GPa.Type: GrantFiled: October 25, 2019Date of Patent: April 16, 2024Assignee: LG CHEM, LTD.Inventors: Jin Young Park, Bi Oh Ryu, Young Ji Tae, Youngseok Park, Yongjoon Heo, Yeongrae Chang
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Publication number: 20240114516Abstract: Aspects are provided for enhancing HARQ ACK for Message 4 or Message B. An apparatus may obtain a configuration indicating a number of repetitions for a physical uplink control channel (PUCCH) transmission in a plurality of slots prior to activation of a dedicated PUCCH resource configuration with a plurality of repetitions based on a radio resource control (RRC) message. The PUCCH transmission includes a Hybrid Automatic Repeat Request (HARQ) feedback message in response to receiving a message on a Physical Downlink Shared Channel (PDSCH) in a random access procedure. The PUCCH transmission may then be transmitted on a PUCCH according to the number of repetitions. This allows coverage techniques to be applied to certain transmissions in order to improve coverage and reliability. In an aspect, the coverage enhancement techniques may include repetition of a transmission for coverage extension.Type: ApplicationFiled: September 21, 2023Publication date: April 4, 2024Inventors: Liangping MA, Xiao Feng WANG, Umesh PHUYAL, Bharat SHRESTHA, Alberto RICO ALVARINO, Jae Ho RYU, Lianghai JI, Changhwan PARK, Ayan SENGUPTA, Wanshi CHEN
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Publication number: 20240088432Abstract: An embodiment sulfur dioxide-based inorganic electrolyte is provided in which the sulfur dioxide-based inorganic electrolyte is represented by a chemical formula M·(A1·Cl(4-x)Fx)z·ySO2. In this formula, M is a first element selected from the group consisting of Li, Na, K, Ca, and Mg, A1 is a second element selected from the group consisting of Al, Fe, Ga, and Cu, x satisfies a first equation 0?x?4, y satisfies a second equation 0?y?6, and z satisfies a third equation 1?z?2.Type: ApplicationFiled: April 12, 2023Publication date: March 14, 2024Inventors: Kyu Ju Kwak, Won Keun Kim, Eun Ji Kwon, Samuel Seo, Yeon Jong Oh, Kyoung Han Ryu, Dong Hyun Lee, Han Su Kim, Ji Whan Lee, Seong Hoon Choi, Seung Do Mun
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Patent number: 11926702Abstract: The present disclosure relates to a polyamide block copolymer and a polyamide film including the same. The polyamide block copolymer according to the present disclosure makes it possible to provide a polyamide film exhibiting excellent mechanical properties while being colorless and transparent.Type: GrantFiled: April 2, 2019Date of Patent: March 12, 2024Assignee: LG CHEM, LTD.Inventors: Bi Oh Ryu, Soonyong Park, Youngseok Park, Kwanyeol Paek, Young Ji Tae, Il Hwan Choi
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Publication number: 20220387321Abstract: A method for preparing a microsphere include steps of dissolving an active ingredient and a biodegradable polymer in an organic solvent to prepare a dispersed phase, dissolving a salt in water to prepare a continuous phase, mixing and stirring the dispersed phase and the continuous phase to form an emulsion, removing the organic solvent; and drying.Type: ApplicationFiled: November 8, 2020Publication date: December 8, 2022Applicant: WHAN IN Pharmaceutical Co., Ltd.Inventors: Byung Hyuck KIM, Chan Eun JUNG, Yong Soon HONG, Ho Chul SHIN, Dong Hoon CHOI, Seo Yeon KIM, Se Rom CHA, Min Ji RYU
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Publication number: 20210390867Abstract: There is provided is a big data-based autonomous flight drone system according to an exemplary embodiment of the present invention, which includes: a smart drone; a ground control system generating a remote control command for flight control of the smart drone; a drone IoT server which operates as a relay server for a communication connection between the smart drone and the ground control system, receives the remote control command from the ground control system so as to transfer the remote control command to the smart drone, and receives drone flight information and a camera image from the smart drone so as to transfer the drone flight information and the camera image to the ground control system; and an AI big data server which receives destination information and the drone flight information inputted in the ground control system, and generates a plurality of flight routes according to a preset criterion by interlocking with a database storing spatial information big data based on the destination informatioType: ApplicationFiled: October 31, 2019Publication date: December 16, 2021Inventors: Yong Dug KIM, Min Ji RYU
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Patent number: 9714883Abstract: A bearing test apparatus has a bearing cap coupled to an outer ring of a bearing to be tested (a “test bearing”), a driving rotary shaft coupled to an inner ring of the test bearing to rotate the inner ring, and a bearing torque meter for measuring a single torque of the test bearing, wherein an extension bar is formed at the bearing cap to protrude thereon, wherein the bearing torque meter includes a measurement rod configured to contact the extension bar and be fixed to support the extension bar in a direction opposite to a rotating direction of the driving rotary shaft, and a power sensor for measuring a force applied to the measurement rod, wherein the single torque of the test bearing is calculated based on a distance from the driving rotary shaft to the measurement rod and a force applied to the measurement rod.Type: GrantFiled: October 3, 2014Date of Patent: July 25, 2017Assignee: Korea Institute of Science and TechnologyInventors: Yong Bok Lee, Bokseong Choe, Jeon Kook Lee, Sol-Ji Ryu, Byoungkuk Lee
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Publication number: 20160025592Abstract: A bearing test apparatus has a bearing cap coupled to an outer ring of a bearing to be tested (a “test bearing”), a driving rotary shaft coupled to an inner ring of the test bearing to rotate the inner ring, and a bearing torque meter for measuring a single torque of the test bearing, wherein an extension bar is formed at the bearing cap to protrude thereon, wherein the bearing torque meter includes a measurement rod configured to contact the extension bar and be fixed to support the extension bar in a direction opposite to a rotating direction of the driving rotary shaft, and a power sensor for measuring a force applied to the measurement rod, wherein the single torque of the test bearing is calculated based on a distance from the driving rotary shaft to the measurement rod and a force applied to the measurement rod.Type: ApplicationFiled: October 3, 2014Publication date: January 28, 2016Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yong Bok LEE, Bokseong CHOE, Jeon Kook LEE, Sol-Ji RYU, Byoungkuk LEE
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Patent number: 9121450Abstract: A cage for a rolling bearing is coupled to a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements rolling between the inner ring and the outer ring to keep intervals of the plurality of rolling elements, wherein the plurality of rolling elements include bodies coupled along a circumference thereof at predetermined intervals, wherein each of the bodies includes a first piece and a second piece which are attachable to each other and detachable from each other. A first coupler and a second coupler configured to be capable of being coupled to each other are respectively formed at the first piece and the second piece, and the first piece and the second piece are primarily coupled by means of a coupling force of the first coupler and the second coupler.Type: GrantFiled: June 19, 2014Date of Patent: September 1, 2015Assignee: Korea Institute of Science and TechnologyInventors: Yong Bok Lee, Chang Ho Kim, Bok Seong Choe, Sol Ji Ryu
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Publication number: 20140376850Abstract: A cage for a rolling bearing is coupled to a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements rolling between the inner ring and the outer ring to keep intervals of the plurality of rolling elements, wherein the plurality of rolling elements include bodies coupled along a circumference thereof at predetermined intervals, wherein each of the bodies includes a first piece and a second piece which are attachable to each other and detachable from each other. A first coupler and a second coupler configured to be capable of being coupled to each other are respectively formed at the first piece and the second piece, and the first piece and the second piece are primarily coupled by means of a coupling force of the first coupler and the second coupler.Type: ApplicationFiled: June 19, 2014Publication date: December 25, 2014Inventors: Yong Bok LEE, Chang Ho KIM, Bok Seong CHOE, Sol Ji RYU
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Publication number: 20120008062Abstract: Provided are a slimmer liquid crystal display (LCD) and a display apparatus set having the same. The LCD includes: a liquid crystal panel having sides; a light guide plate (LGP) which is overlapped by the liquid crystal panel; a container accommodating the LGP; a printed circuit board (PCB) which is disposed between the LGP and a sidewall of the container along one of the sides of the liquid crystal panel, and which is configured to provide an image signal to the liquid crystal panel; and a light source which is disposed between the LGP and a sidewall of the container along another one of the sides of the liquid crystal panel, and which is configured to provide light to the liquid crystal panel.Type: ApplicationFiled: July 8, 2011Publication date: January 12, 2012Inventors: Seung-Chul JEONG, Han-Ji RYU
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Publication number: 20070218354Abstract: Disclosed herein is a lithium secondary battery having improved life characteristics by removal of metal ion impurities incorporated during an assembly process of the battery via a cation exchange process, thereby preventing electrodeposition of the metal ions on an anode, through the addition of a cation exchange material, containing cations selected from the group consisting of lithium, sodium, ammonium and any combination thereof, to an electrode and/or a surface of a separator.Type: ApplicationFiled: September 21, 2006Publication date: September 20, 2007Applicant: LG CHEM, LTD.Inventors: Ji Ryu, Eun Lee, Jung Hyun, Jaepil Lee, Jeong Choi, Min Kim, Youngjoon Shin
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Publication number: 20070190420Abstract: Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a mixture of a lithium/manganese spinel oxide having a substitution of a manganese (Mn) site with a certain metal ion and a lithium/nickel/cobalt/manganese composite oxide, as a cathode active material.Type: ApplicationFiled: August 14, 2006Publication date: August 16, 2007Inventors: Ji Ryu, Min Kim, Jung Hyun, Jaepil Lee, Eun Lee, Youngjoon Shin
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Publication number: 20070054157Abstract: Disclosed herein is a secondary battery having a mechanical connection sensor, as a safety device, fixed to the outer surface of a prismatic or pouch-shaped battery cell while the mechanical connection sensor is set to OFF. The mechanical connection sensor is connected in series with a resistor having a predetermined resistance value and with a cathode and an anode of the battery cell. When the battery cell swells to a critical value or more due to the abnormal operation of the battery cell, the mechanical connection sensor is turned ON, and therefore, the mechanical connection sensor conducts with the result that the electrical energy of the battery cell is consumed at the resistor. In the secondary battery having the safety device according to the present invention, when the battery swells due to the abnormal response of the battery, energy accumulated in the battery is forcibly consumed, unlike a conventional battery that merely intercepts the current.Type: ApplicationFiled: September 7, 2006Publication date: March 8, 2007Inventors: Ji Ryu, Jin Ha, Jeong Choi, Youngjoon Shin
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Publication number: 20070048597Abstract: Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a cathode active material composed of a mixture of lithium/manganese spinel oxide and lithium/nickel/cobalt/manganese composite oxide wherein at least one of two oxides has an average particle diameter of more than 15 ?m.Type: ApplicationFiled: August 14, 2006Publication date: March 1, 2007Inventors: Ji Ryu, Min Kim, Jung Hyun, Jaepil Lee, Eun Lee, Youngjoon Shin
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Publication number: 20060033668Abstract: The present invention relates to an internal antenna for a mobile handset comprising: a feeding pin for power supply; an upper radiating patch connected to the feeding pin, having a first upper patch portion and a second upper patch portion, which receive power supply from the feeding pin and resonate at different frequency bands respectively; a side radiating patch receiving power supply from the feeding pin, extended along the side of the upper radiating patch and vertically apart from the upper radiating patch by certain distance; and a short pin, one end of which is in contact with the upper radiating patch and the side radiating patch and the other end of which is grounded. According to the present invention, a bandwidth to be used can be broadened without increasing space for a general small size dual band Planar Inverted F Antenna PIFA.Type: ApplicationFiled: October 14, 2005Publication date: February 16, 2006Inventor: Ji Ryu
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Publication number: 20050110693Abstract: The present invention relates to an internal antenna for a mobile handset comprising: a feeding pin for power supply; an upper radiating patch connected to the feeding pin, having a first upper patch portion and a second upper patch portion, which receive power supply from the feeding pin and resonate at different frequency bands respectively; a side radiating patch receiving power supply from the feeding pin, extended along the side of the upper radiating patch and vertically apart from the upper radiating patch by certain distance; and a short pin, one end of which is in contact with the upper radiating patch and the side radiating patch and the other end of which is grounded. According to the present invention, a bandwidth to be used can be broadened without increasing space for a general small size dual band Planar Inverted F Antenna PIFA.Type: ApplicationFiled: March 26, 2004Publication date: May 26, 2005Inventor: Ji Ryu
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Publication number: 20040065394Abstract: A hydro-forming method for an aluminum alloy is provided which comprises: loading a tube component made of an aluminum alloy on a die of a hydro-forming apparatus; bringing a first die and a second die together in a state in which the tube component is loaded, and sealing and axially compressing the tube component by operation of a hydraulic cylinder disposed on each side of the tube component; heating the tube component to a temperature within a predetermined temperature range; forming the tube component along forming surfaces formed on the first die and the second die by providing an axial compressing force of the hydraulic cylinders and supplying hydraulic pressure into the tube component, when the tube component is heated to the predetermined temperature; and taking the formed tube component out of the first and second dies, and cooling the tube component.Type: ApplicationFiled: May 2, 2003Publication date: April 8, 2004Applicants: Sungwoo Hitech Co., Ltd., Korea Institute of Machinery & MaterialsInventors: Seong Ji Ryu, Sang Yong Lee