Patents by Inventor Un Lee
Un 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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Patent number: 12248623Abstract: A display device includes: a visual sensor for generating visual sensing data by sensing an eye of a user; a display panel including a display area and pixels disposed on the display area; an image converter for generating a second image signal by converting a first image signal of the pixels based on the visual sensing data; and a data driver for providing the pixels with data signals corresponding to the second image signal. The image converter generates visual information based on the visual sensing data, determines a first area and a second area different from the first area of the display area based on the visual information, and generates the second image signal by converting grayscales of the second area in the first image signal.Type: GrantFiled: July 15, 2022Date of Patent: March 11, 2025Assignee: Samsung Display Co., Ltd.Inventors: Tae Un Lee, Sung Hwan Park, Chang Ho Hyun
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Publication number: 20250065007Abstract: An electrical discharge type air cleaner is provided. The air cleaner includes a dust collecting tank accommodating liquid, a housing accommodating the dust collecting tank, an air supplying portion supplying air to the dust collecting tank, an air discharging portion discharging the air from the dust collecting tank and having an air discharging tube facing a surface of the liquid, a plurality of discharge electrodes disposed at the air discharging tube, a charging portion in the dust collecting tank, and a rotary vane forming a vortex in the liquid. The charging portion charges the liquid with a polarity opposite to a polarity of the discharge electrodes such that an electric field is formed between the discharge electrodes and the liquid and pollutants in the air are collected into the liquid. A distance between the surface of the liquid ad the discharge electrode is maintained within a predetermined distance range.Type: ApplicationFiled: December 21, 2023Publication date: February 27, 2025Applicant: GONGGONG CO., LTD.Inventor: Sun Un Lee
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Patent number: 12216817Abstract: A display device includes: a visual sensor for generating visual sensing data by sensing an eye of a user; a display panel including a display area and pixels disposed on the display area; an image converter for generating a second image signal by converting a first image signal of the pixels based on the visual sensing data; and a data driver for providing the pixels with data signals corresponding to the second image signal. The image converter generates visual information based on the visual sensing data, determines a first area and a second area different from the first area of the display area based on the visual information, and generates the second image signal by converting grayscales of the second area in the first image signal.Type: GrantFiled: July 15, 2022Date of Patent: February 4, 2025Assignee: Samsung Display Co., Ltd.Inventors: Tae Un Lee, Sung Hwan Park, Chang Ho Hyun
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Patent number: 12183575Abstract: The present invention relates to technology for fabricating a gallium nitride substrate using an ion implantation process to which a self-separation technique is applied. According to the present invention, a method of fabricating a gallium nitride substrate may include a step of forming a first gallium nitride layer on a substrate, a step of implanting hydrogen ions into the first gallium nitride layer to form a separation layer, a step of grinding the edges of the substrate, the first gallium nitride layer, and the separation layer, a step of forming a second gallium nitride layer on the first gallium nitride layer having a ground edge, and a step of self-separating the second gallium nitride layer from the first gallium nitride layer having a ground edge.Type: GrantFiled: September 30, 2019Date of Patent: December 31, 2024Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Jea Gun Park, Tae Hun Shim, Jae Hyoung Shim, Jin Seong Park, Jae Un Lee
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Publication number: 20240413347Abstract: Disclosed herein are a high-strength, high-elongation electrolytic copper foil and a manufacturing method therefor. The electrolytic copper foil has a tensile strength of 40 kgf/mm2 or greater at room temperature and ranges in elongation per unit thickness at room temperature from 1.3 to 2.0%/?m.Type: ApplicationFiled: October 7, 2022Publication date: December 12, 2024Inventors: Kideok SONG, Seulki PARK, Sun Hyoung LEE, Soo Un LEE
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Publication number: 20240367154Abstract: A catalyst for an ammonia decomposition reaction and a hydrogen production method using the catalyst are proposed. The shape of cerium oxide used as a catalyst carrier for the catalyst is controlled, and cesium (Cs) is included in the catalyst as a catalyst enhancer. Thus, the catalyst increases an ammonia conversion rate and has improved long-term stability.Type: ApplicationFiled: September 7, 2021Publication date: November 7, 2024Applicant: Korea Research Institute of Chemical TechnologyInventors: Ho Jeong Chae, Youngmin Kim, Thien An Le, Jeong-Rang Kim, Tae Wan Kim, You Jin Lee, Su Un Lee
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Patent number: 12085310Abstract: The present disclosure relates to a double swirl type air purifier including: a main body configured to accommodate a liquid for purifying an inflow air; a suction part located at one side of the main body and configured to suction the inflow air; and a discharge part located at a predetermined position of the main body and configured to discharge an outflow air introduced from the main body. The main body includes a rotation part located at a lower portion of the main body and configured to rotate the liquid. A contact area between the liquid swirled by the rotation part and the inflow air swirled by inflow pressure of the suction part is increased so as to improve air purification efficiency.Type: GrantFiled: August 6, 2019Date of Patent: September 10, 2024Assignee: GONGGONG CO., LTD.Inventor: Sun Un Lee
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Patent number: 12050992Abstract: An embodiment of the present disclosure discloses a method of process variation compensating through activation value adjustment of an analog binarized neural network circuit that may recover a decrease in recognition rate performance up to an almost perfect level, even if a binarized neural network is implemented as an analog circuit such that recognition rate performance is decreased due to process variation.Type: GrantFiled: December 31, 2019Date of Patent: July 30, 2024Assignees: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ki Young Choi, Jae Hyun Kim, Chae Un Lee, Joonyeon Chang, Joon Young Kwak, Jaewook Kim
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Patent number: 11973233Abstract: A catalyst structure includes: (1) a substrate; (2) a catalyst layer on the substrate; and (3) an adhesion layer disposed between the substrate and the catalyst layer. In some implementations, an average thickness of the adhesion layer is about 1 nm or less. In some implementations, a material of the catalyst layer at least partially extends into a region of the adhesion layer. In some implementations, the catalyst layer is characterized by a lattice strain imparted by the adhesion layer.Type: GrantFiled: December 11, 2020Date of Patent: April 30, 2024Assignees: The Board of Trustees of the Leland Stanford Junior University, Volkswagen AktiengesellschaftInventors: Friedrich B. Prinz, Shicheng Xu, Yongmin Kim, Thomas Jaramillo, Drew C. Higgins, Maha Yusuf, Zhaoxuan Wang, Kyung Min Lee, Marat Orazov, Dong Un Lee, Tanja Graf, Thomas Schladt, Gerold Huebner, Hanna-Lena Wittern, Jonathan Edward Mueller
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Patent number: 11961223Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.Type: GrantFiled: April 20, 2021Date of Patent: April 16, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SOOKMYUNG WOMEN'S UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Jong Ho Park, Chang Gon Kim, Chul Woo Jung, Sang Min Lee, Min Kyoo Kang, Ji Un Lee, Kwang Hyeon Hwang, Nam Woo Kang, So Young Yoo, Seong Sin Kim, Sung Hee Lee
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Patent number: 11936051Abstract: A catalyst structure includes: (1) a substrate; (2) a catalyst layer on the substrate; and (3) an adhesion layer disposed between the substrate and the catalyst layer. In some implementations, an average thickness of the adhesion layer is about 1 nm or less. In some implementations, a material of the catalyst layer at least partially extends into a region of the adhesion layer. In some implementations, the catalyst layer is characterized by a lattice strain imparted by the adhesion layer.Type: GrantFiled: December 13, 2019Date of Patent: March 19, 2024Assignees: The Board of Trustees of the Leland Stanford Junior University, Volkswagen AktiengesellschafInventors: Friedrich B. Prinz, Shicheng Xu, Yongmin Kim, Thomas Jaramillo, Drew C. Higgins, Maha Yusuf, Zhaoxuan Wang, Kyung Min Lee, Marat Orazov, Dong Un Lee, Tanja Graf, Thomas Schladt, Gerold Huebner, Hanna-Lena Wittern, Jonathan Edward Mueller
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Publication number: 20240066068Abstract: The present disclosure relates to a composition for skin improvement and a pharmaceutical composition for preventing or treating an inflammatory skin disease, the compositions including an umbilical cord-derived mesenchymal stem cell culture medium as an active ingredient. The compositions exhibit a wound relief, wrinkle improvement, regeneration, elasticity increase, moisturizing, barrier strengthening, anti-inflammatory or antioxidant effect, and thus can be effectively used as a cosmetic composition for skin improvement or a pharmaceutical composition for preventing or treating an inflammatory skin disease.Type: ApplicationFiled: November 5, 2021Publication date: February 29, 2024Applicant: HANS PHARMA CO., LTD.Inventors: Na Eun LEE, Jung Tae LEE, Geun Young KIM, Jin Young KIM, Dong Wook KIM, Min Ji LEE, Ro Un LEE
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Publication number: 20230411940Abstract: The present disclosure provides a wiring harness module for a sliding seat, the wiring harness module including a sliding casing, a connector holder installed in the sliding casing and configured to be slidable in a sliding direction of a seat, a sliding connector provided on the connector holder and formed to be electrically connected to the seat, a joint connector formed to be electrically connected to an external configuration, and a flat flexible cable (FFC) configured to electrically connect the joint connector and the sliding connector while absorbing a sliding motion of the connector holder.Type: ApplicationFiled: October 31, 2022Publication date: December 21, 2023Inventors: Seong Goo JI, Sang Un LEE
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Publication number: 20230256375Abstract: The disclosure relates to a wave vortex air purifier. The wave vortex air purifier according to an embodiment includes an air inhaler configured to inhale air from an outside; a liquid storage configured to accommodate liquid for collecting contaminants contained in intake air inhaled through the air inhaler; a liquid fluidizer placed inside the liquid storage and configured to rotate inside the liquid storage to rotate the liquid in the liquid storage and cause an upwelling phenomenon that a level of the liquid changes; a rotary driver configured to rotate the liquid fluidizer; and an air discharger configured to discharge purified air, from which the contaminants are removed, to the outside.Type: ApplicationFiled: June 30, 2021Publication date: August 17, 2023Applicant: GONGGONG CO.,LTD.Inventor: Sun Un LEE
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Publication number: 20230234841Abstract: The present invention relates to an ammonia decomposition catalyst that converts ammonia into hydrogen and nitrogen. The catalyst includes ruthenium (Ru) as an active catalytic component and a composite oxide solid solution (LaxCe1-xOy) including lanthanum oxide and cerium oxide as a catalyst support. The present invention also relates to an ammonia decomposition method using the catalyst and a hydrogen production method using the catalyst.Type: ApplicationFiled: January 27, 2021Publication date: July 27, 2023Applicant: Korea Research Institute of Chemical TechnologyInventors: Ho Jeong Chae, Young-min Kim, Thien An Le, Jeong-Rang Kim, Tae Wan Kim, Youjin Lee, Su Un Lee
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Patent number: 11631952Abstract: A connector assembly includes: a housing having a plurality of accommodating grooves into which a plurality of terminals are insertable, respectively, and having an insertion space recessed in a first direction intersecting a second direction in which the accommodating grooves extend, the plurality of accommodating grooves being formed in one surface of the housing; a terminal position assurance (TPA) mechanism inserted into the insertion space of the housing in the first direction, having a plurality of through-holes extending parallel to the plurality of accommodating grooves, and inhibiting the terminals inserted into the through-holes from being separated; joint terminals extending from an inside of the housing to the accommodating grooves, and electrically connected to the terminals inserted into the accommodating grooves; and a noise filter fixed to the housing or the TPA mechanism, and enclosing the accommodating grooves of the housing, the through-holes of the TPA mechanism, or the joint terminals.Type: GrantFiled: April 22, 2021Date of Patent: April 18, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Kyungshin CorporationInventors: Ji Hyoung Kim, Jung Nan Ryu, Min Woo Kim, Sang Un Lee, Jae Ho Park
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Publication number: 20230079048Abstract: A manufacturing process includes: depositing a first catalyst on a first gas diffusion layer (GDL) to form a first catalyst-coated GDL; depositing a first ionomer on the first catalyst-coated GDL to form a first gas diffusion electrode (GDE); depositing a second catalyst on a second GDL to form a second catalyst-coated GDL; depositing a second ionomer on the second catalyst-coated GDL to form a second GDE; and laminating the first GDE with the second GDE and with an electrolyte membrane disposed between the first GDE and the second GDE to form a membrane electrode assembly (MEA). A MEA includes a first GDL; a second GDL; an electrolyte membrane disposed between the first GDL and the second GDL; a first catalyst layer disposed between the first GDL and the electrolyte membrane; and a second catalyst layer disposed between the second GDL and the electrolyte membrane, wherein a thickness of the electrolyte membrane is about 15 ?m or less.Type: ApplicationFiled: February 12, 2021Publication date: March 16, 2023Applicants: Board of Trustees of the Leland Stanford Junior University, Volkswagen AktiengesellschaftInventors: Friedrich B. Prinz, Timothy Goh, Shicheng Xu, Zhaoxuan Wang, Soonwook Hong, Yongmin Kim, Samuel Dull, Dong Un Lee, Thomas Francisco Jaramillo, Thomas Schladt, Gerold Huebner, Jonathan Müller, Glavas Vedran
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Publication number: 20230069320Abstract: A display device includes: a visual sensor for generating visual sensing data by sensing an eye of a user; a display panel including a display area and pixels disposed on the display area; an image converter for generating a second image signal by converting a first image signal of the pixels based on the visual sensing data; and a data driver for providing the pixels with data signals corresponding to the second image signal. The image converter generates visual information based on the visual sensing data, determines a first area and a second area different from the first area of the display area based on the visual information, and generates the second image signal by converting grayscales of the second area in the first image signal.Type: ApplicationFiled: July 15, 2022Publication date: March 2, 2023Inventors: Tae Un LEE, Sung Hwan PARK, Chang Ho HYUN
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Publication number: 20230026895Abstract: The present invention relates to a method and a system for managing dental article information based on a UHF RFID, and more particularly, to a method and a system for managing dental article information based on a UHF RFID, capable of automatically monitoring a location, a stock, and an expiration date of an article used by medical staffs of a dental clinic without an additional action of the medical staff, and providing information and a notification related to a dental article to the medical staffs of the dental clinic.Type: ApplicationFiled: February 3, 2022Publication date: January 26, 2023Applicants: KONG TECH Co., Ltd., OSSTEMIMPLANT CO., LTD., KOREA DESIGN SCIENCE INSTITUTEInventors: Dong Un LEE, Hak Kyung LEE, Ho Jin LIM, Myoung Pyo HONG, Young Soo JUNG, Sang Yeon PARK, Young Kyu CHI, Yong Jin KIM, Gyu Nam KIM
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Publication number: 20230009452Abstract: A catalyst structure includes: (1) a substrate; (2) a catalyst layer on the substrate; and (3) an adhesion layer disposed between the substrate and the catalyst layer. In some implementations, an average thickness of the adhesion layer is about 1 nm or less. In some implementations, a material of the catalyst layer at least partially extends into a region of the adhesion layer. In some implementations, the catalyst layer is characterized by a lattice strain imparted by the adhesion layer.Type: ApplicationFiled: December 11, 2020Publication date: January 12, 2023Applicants: The Board of Trustees of the Leland Stanford Junior University, Volkswagen AktiengesellschaftInventors: Friedrich B. PRINZ, Shicheng XU, Yongmin KIM, Thomas JARAMILLO, Drew C. HIGGINS, Maha YUSUF, Zhaoxuan WANG, Kyung Min LEE, Marat ORAZOV, Dong Un LEE, Tanja GRAF, Thomas SCHLADT, Gerold HUEBNER, Hanna-Lena WITTERN, Jonathan Edward MUELLER