Patents by Inventor Seul-Gi Lee
Seul-Gi 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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LITHIUM COMPOSITE OXIDE AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY CONTAINING SAME
Publication number: 20240145683Abstract: A positive electrode active material including a lithium nickel-based composite oxide including secondary particles formed by aggregation of one or more primary particles, wherein a part of cations and a part of anions in the lithium nickel-based composite oxide are substituted, respectively, with cations M? and fluorine anions (F?) in a fluorine-based compound.Type: ApplicationFiled: May 22, 2023Publication date: May 2, 2024Inventors: Kyu Suk HAN, Jin Hyeok CHOI, Jae Hoon SHIN, Seul Gi LEE -
Publication number: 20240136625Abstract: A battery module according to the present disclosure comprises a cell stack comprising a plurality of battery cells; and a module case covering the outside of the cell stack. A module case comprises a first case comprising a rib and a first coupling portion that has a greater thickness than that of the rib and that is connected to a side of the rib; a second case comprising a second coupling portion facing an upper portion of the rib and a side of the first coupling portion; a tunnel portion formed between the rib, the first coupling portion, and the second coupling portion; and a welding portion in which a boundary area of the first coupling portion and the second coupling portion is welded.Type: ApplicationFiled: August 24, 2023Publication date: April 25, 2024Inventors: Hoemin Cheong, Ju Yong PARK, Seul Gi LEE
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Publication number: 20240098884Abstract: A circuit board according to an embodiment includes an insulating layer; and a via formed in the insulating layer; wherein a width of an upper surface of the via is greater than a width of a lower surface of the via, and wherein the width of the lower surface of the via is 75% to 95% of the width of the upper surface of the via.Type: ApplicationFiled: November 26, 2021Publication date: March 21, 2024Applicant: LG INNOTEK CO., LTD.Inventors: Do Hyuk YOO, Seul Gi LEE, Du Hyun KIM
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Publication number: 20240097281Abstract: A bus bar and a battery module including the same are disclosed. The bus bar comprises a bus bar plate having a front surface and a rear surface; a plurality of bus bar coupling parts formed on the bus bar plate, each of the plurality of bus bar coupling parts extending in a longitudinal direction, the plurality of bus bar coupling parts being spaced apart in a transverse direction; a bus bar connection part formed on the bus bar plate and positioned between the plurality of bus bar coupling parts; and an at least one rib positioned on the bus bar connection part, the at least one rib protruding from at least one of the front surface and the rear surface of the bus bar plate.Type: ApplicationFiled: April 27, 2023Publication date: March 21, 2024Inventors: Hoemin CHEONG, Seul Gi LEE
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Publication number: 20240063513Abstract: The busbar assembly of the present disclosure comprises a busbar plate electrically connected to electrode tabs of a plurality of battery cells; a busbar terminal electrically connected to an external device; and a welding portion electrically connecting the busbar plate and the busbar terminal with each other, wherein the welding portion is formed by butt welding between the busbar plate and the busbar terminal.Type: ApplicationFiled: August 1, 2023Publication date: February 22, 2024Inventors: Hoemin CHEONG, Seul Gi LEE, Hyeong Won KIM, Ki Dong LEE
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Patent number: 11887549Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device. A color gamut mapping method may include converting, by a color space converter, first three-color signals into a first luminance component and a pair of first chrominance components and outputting the first luminance component and the pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain of the saturation controller and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, interpolating, by an overall controller, a set value of a luminance gain using grayscale differences between the first three-color signals, outputting a second luminance component by controlling first luminance component using the interpolated luminance gain.Type: GrantFiled: November 3, 2021Date of Patent: January 30, 2024Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
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Publication number: 20230406112Abstract: A hybrid electric vehicle (HEV) that can perform more efficient regenerative braking and a method of regenerative braking control for the same are disclosed. The method of regenerative braking control includes determining a total braking amount when a braking request is generated in a HEV including a first motor connected to an engine, a second motor directly connected to an input side of a transmission, and an engine clutch having a first end connected to the first motor and a second end connected to the second motor. The method also includes charging a battery using regenerative braking of the first motor when the engine clutch has been engaged in consideration of at least the total braking amount and charge power by regenerative braking of the second motor is less than charge limit power of the battery.Type: ApplicationFiled: November 17, 2022Publication date: December 21, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Gwang Il Du, Jae Young Choi, Min Gyun Jo, Geon Young Choi, Chun Hyuk Lee, Seul Gi Lee
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Publication number: 20230373464Abstract: A hybrid electric vehicle includes an engine, a first motor directly connected to the engine, an engine clutch, a second motor selectively connected to the first motor through the engine clutch, a transmission directly connected to the second motor, a transmission controller configured to determine whether the transmission needs to be shifted, and a hybrid controller configured to compare a target torque reduction with intervention limits of the first and second motors when the engine clutch is in a locked-up state, to set torque reduction amounts of the engine, the first motor, and the second motor, respectively, and to output a torque command for controlling the torques of the engine, the first motor, and the second motor, respectively.Type: ApplicationFiled: September 12, 2022Publication date: November 23, 2023Inventors: Sang Kook Woo, Won Bin Lee, Soo Bang Lee, Seul Gi Lee
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Publication number: 20230339450Abstract: A shift control method of a hybrid electric vehicle includes: determining a speed control torque based on a result of comparing a speed of an input end of a transmission with a target speed of the input end of the transmission according to a shift signal; distributing the speed control torque to a second motor connected directly to the input end of the transmission; and distributing a residual speed control torque to a first motor connected selectively to the second motor through an engine clutch based on whether the engine clutch is locked up when the speed control torque is greater than a charging limit torque of the second motor.Type: ApplicationFiled: September 14, 2022Publication date: October 26, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Seul Gi Lee, Sang Kook Woo, Won Bin Lee, Soo Bang Lee, Jae Myoung Pi
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Publication number: 20230311844Abstract: A hybrid vehicle and a method of controlling the same, are configured for more efficiently distributing driving power for respective driving sources. The method of controlling a hybrid electric vehicle may include determining an engine operating point in a hybrid electric vehicle (HEV) mode, and determining first torque for a first motor and second torque for a second motor based on engine torque according to the engine operating point, required torque, and a speed of an input end of a transmission, the first motor may be directly connected to the engine, the second motor may be directly connected to the input end of the transmission, and the first motor and the second motor may be connected in the predetermined drive mode using driving power of the engine.Type: ApplicationFiled: September 16, 2022Publication date: October 5, 2023Applicants: Huyndai Motor Company, Kia CorporationInventors: Jae Myoung PI, Jong Bum OH, Seung Wan SON, Soo Bang LEE, Seul Gi LEE
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Publication number: 20230238514Abstract: An embodiment of the present invention relates to a silicon-based carbon composite, a preparation method therefor, and an anode active material for a lithium secondary battery, comprising same, and, more specifically, the silicon-based carbon composite of the present invention is a silicon-based carbon composite having a core-shell structure, wherein the core comprises silicon, silicon oxide compound and magnesium silicate, the shell comprises at least two carbon layers comprising a first carbon layer and a second carbon layer, and the second carbon layer is reduced graphene oxide, and thus, during application of the silicon-based carbon composite to an anode active material for a secondary battery, the charge/discharge capacity, initial charge/discharge efficiency and capacity retention of the secondary battery can be improved.Type: ApplicationFiled: June 2, 2020Publication date: July 27, 2023Applicant: DAEJOO ELECTRONIC MATERIALS CO., LTD.Inventors: Junghyun LEE, Heonsoo PARK, Seul Gi LEE, Hyun Hee LIM, Jong Chan LIM
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Publication number: 20230226924Abstract: Disclosed are a backlash vibration reduction apparatus and method capable of sufficiently performing gear alignment even when torque is increased while a vehicle is driven within a low torque range, thereby minimizing rough vibration due to backlash. The backlash vibration reduction apparatus includes a correction determination unit configured to determine whether it is necessary to correct a torque gradient to be applied for an increase to target torque in the state in which the current torque of a vehicle is retained within a predetermined low torque range and a torque gradient correction unit configured to determine a corrected torque gradient in which a torque increase rate per hour is reduced and a torque increase time period is extended by multiplying a correction factor by a first torque gradient as a torque gradient that increases the current torque upon determining that it is necessary to correct the torque gradient.Type: ApplicationFiled: October 17, 2022Publication date: July 20, 2023Inventors: Won Bin Lee, Seul Gi Lee, Soo Bang Lee, Sang Kook Woo
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Patent number: 11670256Abstract: The disclosure relates to a color gamut mapping device that allows a gamma characteristic for each color to be tuned to match a target gamma curve through color gamut mapping, a tuning method thereof, and an image processor including the same. The color gamut mapping device controls a hue and saturation of an image signal to match a target color gamut using a hue parameter assigned to each of a plurality of hue axes and a saturation parameter assigned to correspond to each of a plurality of saturation control areas of each hue axis, and the color gamut mapping device changes the saturation of the image signal by changing the saturation parameter which is assigned to each hue axis and corresponds to the uppermost saturation control area so that a gamma characteristic for each color of the image signal is changed to match a target gamma curve for each color.Type: GrantFiled: November 17, 2021Date of Patent: June 6, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
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Patent number: 11646285Abstract: Provided is a semiconductor package including a first bump pad on a first substrate, a second bump pad on a second substrate, a core material for reverse reflow between the first bump pad and the second bump pad, and a solder member forming a solder layer on the core material for reverse reflow. The solder member is in contact with the first bump pad and the second bump pad. Each of a first diameter of the first bump pad and a second diameter of the second bump pad is at least about 1.1 times greater than a third diameter of the core material for reverse reflow. The core material for reverse reflow includes a core, a first metal layer directly coated on the core, and a second metal layer directly coated on the first metal layer.Type: GrantFiled: May 18, 2021Date of Patent: May 9, 2023Assignee: MK ELECTRON CO., LTD.Inventors: Jae Yeol Son, Jeong Tak Moon, Jae Hun Song, Young Woo Lee, Seul Gi Lee, Min Su Park, Hui Joong Kim
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Patent number: 11640800Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.Type: GrantFiled: November 3, 2021Date of Patent: May 2, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
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Publication number: 20230111798Abstract: A lead-free solder alloy includes bismuth (Bi), content of which is equal to or greater than 56 wt % and equal to or less than 57.5 wt %, indium (In), content of which is equal to or greater than 0.05 wt % and equal to or less than 1.0 wt %, and the balance of tin (Sn) and another unavoidable impurity. The lead-free solder alloy of the disclosure may enable bonding with improved ductility and thermal shock reliability while not having a large melting point change compared to an Sn-58Bi alloy.Type: ApplicationFiled: October 4, 2022Publication date: April 13, 2023Applicant: MK ELECTRON CO., LTD.Inventors: Young Woo LEE, Seul Gi LEE, Hui Joong KIM, Jae Yool SON, Jae Hun SONG, Jeong Tak MOON
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Patent number: 11618433Abstract: In a hybrid electric vehicle, gear shifting delay and odd feeling when shifting gears, due to the accelerator pedal being depressed after an upshift being determined according to a release of the pedal, may be prevented. A method for controlling a transmission of the hybrid electric vehicle, includes determining a gear shifting type when a predetermined gear shifting condition is satisfied; determining an engine operation mode when the gear shifting type is power-off upshift; determining, when the engine operation mode is a predetermined mode according to an air-fuel ratio condition, a compensation value according to at least one of a motor speed, an under-charging-limit available motor torque, and an engine operation point in the predetermined mode; and applying the compensation value to an engine torque.Type: GrantFiled: July 11, 2022Date of Patent: April 4, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Seul Gi Lee, Soo Bang Lee
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Patent number: 11587525Abstract: The present disclosure relates to a tuning method and apparatus for a color gamut mapping device, in which a tuning time is shortened by automatically setting and changing parameters of a register when tuning the color gamut mapping device. A tuning method of a color gamut mapping device according to an aspect includes an initial setting operation of setting, by a test device, initial parameters in a register of a color gamut mapping device, a measuring operation of measuring, by a measuring device, chromaticity for each of a plurality of color images which are supplied from the test device and displayed on a panel of a display device through the color gamut mapping device, an automatic tuning operation of changing, by the test device, saturation parameters and hue parameters of a plurality of hue axes of the color gamut mapping device by using a result measured from the measuring device.Type: GrantFiled: November 17, 2021Date of Patent: February 21, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Min Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
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Publication number: 20230020109Abstract: A pharmaceutical composition and a health functional food composition for alleviating eye fatigue containing, as active ingredients, compounds, particularly, luteolin-7-O-diglucuronide and apigenin-7-O-diglucuronide isolated from a Perilla frutescens (L.) Britton var. acuta (Thunb.) Kudo leaf extract have an effect of alleviating eye fatigue by increasing the contents of NO and cGMP associated with relaxation of ciliary smooth muscle cells isolated from rat's eyes and decreasing the content of [Ca2+]i, and increasing cGMP which is a factor associated with relaxation of the ciliary smooth muscle through an animal experiment. As a result, the luteolin-7-O-diglucuronide and apigenin-7-O-diglucuronide compounds extracted from Perilla frutescens (L.) Britton var. acuta (Thunb.) Kudo may be usefully used as a pharmaceutical composition and a health functional food composition having an eye fatigue alleviating effect as a Korean natural resource.Type: ApplicationFiled: September 12, 2022Publication date: January 19, 2023Inventors: Chul Yung CHOI, Jae Yong KIM, Hu Won KANG, Ara JO, Dool-Ri OH, Yu Jin KIM, So Jeong IM, Seul Gi LEE, Gyu Ok LEE, Sung Yoon PARK, Geun Chang RYU, Rack Seon SEONG
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Patent number: 11471022Abstract: Provided is a dish washer having an enhanced structure for usability. A dish washer may be installed in a built-in type in a system kitchen including a cabinet having a storage room and a counter arranged on the cabinet to have an opening. The dish washer includes a tub having a front opening, a front door provided to open or close the front opening, a cover frame mounted on the opening of the counter to be separated from the tub in a vertical direction of the dish washer, a top door installed on the cover frame to open or close the opening of the counter, and a coupling member coupling the cover frame to the tub to be expanded or contracted in the vertical direction of the dish washer.Type: GrantFiled: May 24, 2018Date of Patent: October 18, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung Gee Hong, Sung Jin Kim, Jin Doo Kim, Seul Gi Lee, In Ju Lee, Gyu Dong Jeon, Seung Min Chae