Patents by Inventor Ki Seok Choi
Ki Seok Choi 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: 20240124032Abstract: An automated driving system of a vehicle includes a driver monitoring unit configured to perform at least one of monitoring a gaze of a driver and determining a position of a hand of the driver, an automated-driving-level switching unit configured to determine whether a transition of a driving control over the vehicle is required based on whether driving environment of the vehicle has changed during the vehicle being driven under control of the automated driving system, and determine an automated driving level to be switched based on a driver monitoring result obtained by the drive monitoring unit, and an automated driving control unit configured to control the vehicle according to the automated driving level.Type: ApplicationFiled: June 29, 2023Publication date: April 18, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Eun Young CHOI, Woo Jin KIM, Ki Seok SEONG, Dong Il YANG, Da Ye PYUN
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Publication number: 20240119978Abstract: Provided a semiconductor memory device. The semiconductor memory device includes a substrate, a gate electrode on the substrate, a bit line on the substrate, a cell semiconductor pattern on a side of the gate electrode and electrically connected to the bit line, a capacitor structure including a first electrode electrically connected to the cell semiconductor pattern, a second electrode on the first electrode, and a capacitor dielectric film between the first electrode and the second electrode, a bit line strapping line spaced apart from the bit line in the second direction, and electrically connected to the bit line, a bit line selection line between the bit line and the bit line strapping line, and a selection semiconductor pattern between the bit line and the bit line strapping line and electrically connected to all of the bit line, the bit line strapping line, and the bit line selection line.Type: ApplicationFiled: June 5, 2023Publication date: April 11, 2024Inventors: Jin Woo Han, Hyun Geun Choi, Ki Seok Lee, Seok Han Park
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Patent number: 11953066Abstract: The present disclosure relates to a brake disc including a braking part having a circular plate shape having a hollow portion and a plurality of coupling portions protruding and extending from an inner diameter surface thereof, and a hat part disposed in the hollow portion and having a plurality of insertion portions protruding laterally, in which the plurality of coupling portions is respectively coupled to the plurality of insertion portions, and the coupling portion of the braking part and the insertion portion of the hat part are joined to only one of an outboard portion or an inboard portion of the braking part. According to the present disclosure, it is possible to reduce noise occurring at a position at which the hat part and the braking part are coupled to each other and improve cooling performance.Type: GrantFiled: April 1, 2022Date of Patent: April 9, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOHAN INDUSTRY CO., LTD.Inventors: Yoon-Cheol Kim, Kyung-Rok Choi, Sang-Bum Koh, Seong-Kweon Joo, Ki-Jeong Kim, Jae-Seok Lee
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Publication number: 20240114709Abstract: The quantum dot comprises a ligand which is a copolymer comprising a first repeating unit comprising at least one or more hole transporting functional groups and a second repeating unit comprising at least one or more photocrosslinking functional groups.Type: ApplicationFiled: September 22, 2020Publication date: April 4, 2024Applicants: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Joona BANG, Ki Seok CHANG, Jeong Min MOON, Soon Shin JUNG, Dong Hoon CHOI, Hyung Jong KIM, Jae Wan KO
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Publication number: 20240097125Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.Type: ApplicationFiled: July 11, 2023Publication date: March 21, 2024Inventors: Yong Seok LEE, Jeong Hoon JEUN, Jae Ram KIM, Jae Yun MIN, Ki Joo EOM, Myung Ro LEE, Hyun Joong JANG, Je Nam CHOI
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Publication number: 20240023374Abstract: An organic light emitting diode display includes a first thin film transistor of which a channel is formed in a polycrystalline transistor, a second thin film transistor of which a channel is formed in an oxide semiconductor layer, an organic light emitting diode electrically connected to the first thin film transistor, a storage capacitor having a first electrode and a second electrode, wherein the second electrode of the storage capacitor is electrically connected to a gate electrode of the first thin film transistor, and an overlapping layer overlapping the oxide semiconductor layer in a plan view and receiving a positive voltage. The oxide semiconductor layer is positioned higher than the gate electrode of the first thin film transistor and the second electrode of the storage capacitor.Type: ApplicationFiled: September 21, 2023Publication date: January 18, 2024Inventors: MYOUNG GEUN CHA, SANG GUN CHOI, SANG SUB KIM, JI YEONG SHIN, YONG SU LEE, KI SEOK CHOI
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Publication number: 20230223478Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.Type: ApplicationFiled: March 17, 2023Publication date: July 13, 2023Applicant: Samsung Display Co., LTD.Inventors: Sang Sub KIM, Keun Woo KIM, Ji Yeong SHIN, Yong Su LEE, Myoung Geun CHA, Ki Seok CHOI, Sang Gun CHOI
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Patent number: 11659745Abstract: A display device including: a substrate including a main area and a sub-area at a side of the main area; a thin-film transistor on the substrate and positioned in the main area; a first insulating layer on a gate electrode of the thin-film transistor; a light-emitting element on the first insulating layer, positioned in the main area, and electrically connected to the thin-film transistor; a plurality of pads on the first insulating layer and positioned in the sub-area; and a light-blocking layer overlapping the plurality of pads and located between the substrate and the first insulating layer.Type: GrantFiled: March 1, 2022Date of Patent: May 23, 2023Assignee: Samsung Display Co., Ltd.Inventors: Myoung Geun Cha, Sang Gun Choi, Hye Na Kwak, Yun Jung Oh, Ki Seok Choi
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Patent number: 11626429Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.Type: GrantFiled: October 15, 2020Date of Patent: April 11, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Sub Kim, Keun Woo Kim, Ji Yeong Shin, Yong Su Lee, Myoung Geun Cha, Ki Seok Choi, Sang Gun Choi
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Publication number: 20230022035Abstract: A display device including: a substrate including a main area and a sub-area at a side of the main area; a thin-film transistor on the substrate and positioned in the main area; a first insulating layer on a gate electrode of the thin-film transistor; a light-emitting element on the first insulating layer, positioned in the main area, and electrically connected to the thin-film transistor; a plurality of pads on the first insulating layer and positioned in the sub-area; and a light-blocking layer overlapping the plurality of pads and located between the substrate and the first insulating layer.Type: ApplicationFiled: March 1, 2022Publication date: January 26, 2023Inventors: Myoung Geun CHA, Sang Gun CHOI, Hye Na KWAK, Yun Jung OH, Ki Seok CHOI
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Patent number: 11450133Abstract: An ultrasonic sensing device includes: a sensing layer between a driving electrode and a sensing electrode, a double-gated first transistor connected to a selection line and the sensing electrode, and may further include a sensed voltage storing capacitor having an electrode on the same layers as the first transistor. The configuration as a double gated transistor of a pixel sensor and the placement of one of the capacitor electrodes on the same layer can each reduce the size of the pixel sensor. The ultrasonic sensing device may be utilized as a proximity sensor or a fingerprint recognition sensor.Type: GrantFiled: March 19, 2020Date of Patent: September 20, 2022Assignee: Samsung Display Co., Ltd.Inventors: Keun Woo Kim, Doo Na Kim, Ji Yeong Shin, Yong Su Lee, Jae Hwan Chu, Ki Seok Choi
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Publication number: 20210167153Abstract: An organic light emitting diode display includes a first thin film transistor of which a channel is formed in a polycrystalline transistor, a second thin film transistor of which a channel is formed in an oxide semiconductor layer, an organic light emitting diode electrically connected to the first thin film transistor, a storage capacitor having a first electrode and a second electrode, wherein the second electrode of the storage capacitor is electrically connected to a gate electrode of the first thin film transistor, and an overlapping layer overlapping the oxide semiconductor layer in a plan view and receiving a positive voltage. The oxide semiconductor layer is positioned higher than the gate electrode of the first thin film transistor and the second electrode of the storage capacitor.Type: ApplicationFiled: January 19, 2021Publication date: June 3, 2021Inventors: Myoung Geun CHA, Sang Gun CHOI, Sang Sub KIM, Ji Yeong SHIN, Yong Su LEE, Ki Seok CHOI
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Publication number: 20210151475Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.Type: ApplicationFiled: October 15, 2020Publication date: May 20, 2021Applicant: Samsung Display Co., LTD.Inventors: Sang Sub KIM, Keun Woo KIM, Ji Yeong SHIN, Yong Su LEE, Myoung Geun CHA, Ki Seok CHOI, Sang Gun CHOI
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Patent number: 10930725Abstract: An organic light emitting diode display includes a first thin film transistor of which a channel is formed in a polycrystalline transistor, a second thin film transistor of which a channel is formed in an oxide semiconductor layer, an organic light emitting diode electrically connected to the first thin film transistor, a storage capacitor having a first electrode and a second electrode, wherein the second electrode of the storage capacitor is electrically connected to a gate electrode of the first thin film transistor, and an overlapping layer overlapping the oxide semiconductor layer in a plan view and receiving a positive voltage. The oxide semiconductor layer is positioned higher than the gate electrode of the first thin film transistor and the second electrode of the storage capacitor.Type: GrantFiled: September 19, 2019Date of Patent: February 23, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Myoung Geun Cha, Sang Gun Choi, Sang Sub Kim, Ji Yeong Shin, Yong Su Lee, Ki Seok Choi
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Publication number: 20200410192Abstract: An ultrasonic sensing device includes: a sensing layer between a driving electrode and a sensing electrode, wherein the sensing layer is configured to generate an electrical signal according to an ultrasound; and a first transistor comprising a first gate electrode connected to a selection line and a second gate electrode connected to the sensing electrode.Type: ApplicationFiled: March 19, 2020Publication date: December 31, 2020Inventors: Keun Woo KIM, Doo Na KIM, Ji Yeong SHIN, Yong Su LEE, Jae Hwan CHU, Ki Seok CHOI
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Patent number: 10843825Abstract: There is provided a sealing foil cutting assembly including: a cutting die including a slot through which a sealing tape penetrates, and a penetrating hole formed in a direction perpendicular to the slot; and a punch configured to move up along the penetrating hole of the cutting die to cut the sealing tape to form a sealing foil to be used for sealing an entrance of the container, the punch including: a lid cutting portion configured to form a lid region of the sealing foil; a tab cutting portion having an empty space formed therein to form a tab region protruding from a side surface of the lid of the sealing foil; and a finger member disposed in the empty space of the tab cutting portion, and having an upper end bent toward a surface of the lid cutting portion.Type: GrantFiled: August 1, 2018Date of Patent: November 24, 2020Assignee: Smart Corporation Co., Ltd.Inventor: Ki Seok Choi
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Publication number: 20200258966Abstract: An organic light emitting diode display includes a first thin film transistor of which a channel is formed in a polycrystalline transistor, a second thin film transistor of which a channel is formed in an oxide semiconductor layer, an organic light emitting diode electrically connected to the first thin film transistor, a storage capacitor having a first electrode and a second electrode, wherein the second electrode of the storage capacitor is electrically connected to a gate electrode of the first thin film transistor, and an overlapping layer overlapping the oxide semiconductor layer in a plan view and receiving a positive voltage. The oxide semiconductor layer is positioned higher than the gate electrode of the first thin film transistor and the second electrode of the storage capacitor.Type: ApplicationFiled: September 19, 2019Publication date: August 13, 2020Inventors: MYOUNG GEUN CHA, SANG GUN CHOI, SANG SUB KIM, JI YEONG SHIN, YONG SU LEE, KI SEOK CHOI
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Publication number: 20190193877Abstract: There is provided a sealing foil cutting assembly including: a cutting die including a slot through which a sealing tape penetrates, and a penetrating hole formed in a direction perpendicular to the slot; and a punch configured to move up along the penetrating hole of the cutting die to cut the sealing tape to form a sealing foil to be used for sealing an entrance of the container, the punch including: a lid cutting portion configured to form a lid region of the sealing foil; a tab cutting portion having an empty space formed therein to form a tab region protruding from a side surface of the lid of the sealing foil; and a finger member disposed in the empty space of the tab cutting portion, and having an upper end bent toward a surface of the lid cutting portion.Type: ApplicationFiled: August 1, 2018Publication date: June 27, 2019Inventor: Ki Seok CHOI
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Patent number: 10131851Abstract: Disclosed is a method of removing metals from hydrocarbon oil, comprising: supplying a feed including hydrocarbon oil; mixing the feed with an aqueous solution including a metal scavenger to prepare a first mixture; separating the first mixture into a first aqueous solution phase and a first hydrocarbon phase and discharging the separated first aqueous solution phase; mixing the separated first hydrocarbon phase with washing water to produce a second mixture; separating the second mixture into a second aqueous solution phase and a second hydrocarbon phase; and recovering the separated second hydrocarbon phase and recirculating the separated second aqueous solution phase.Type: GrantFiled: August 10, 2016Date of Patent: November 20, 2018Assignees: SK Innovation Co., Ltd., SK Energy Co., Ltd.Inventors: Min Kyoung Kim, Jin Su Ham, Ki Seok Choi, Chang Kuk Kim, Min Hoe Yi
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Patent number: 9624448Abstract: Disclosed herein are a method of preparing a hydrocarbon oil blend having superior storage stability using a novel stability prediction model that is quick, easy and reliable; and a method of predicting the stability of a hydrocarbon blend.Type: GrantFiled: April 16, 2013Date of Patent: April 18, 2017Assignees: SK INNOVATION CO., LTD., SK ENERGY CO., LTD.Inventors: Chang Woo Joo, Yun Hee Lee, Ki Seok Choi, Gwang Hyoun Kim, Young Suk Kim, Myoung Han No, Dong Wook Park, Eun Kyoung Kim