Patents by Inventor JANG-HYEON LEE
JANG-HYEON 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: 11943945Abstract: An organic light-emitting diode (“OLED”) includes a bottom electrode, a top electrode disposed opposite to the bottom electrode, and an organic layer that is interposed between the bottom electrode and the top electrode and includes a hole-transporting host and an electron-transporting host forming an exciplex and a phosphorescent dopant having a triplet energy which is lower than the triplet energy of the hole-transporting host, the triplet energy of the electron-transporting host, and the triplet energy of the exciplex, and a lighting device and a display apparatus including the OLED. Instead of a phosphorescent dopant, the fluorescent dopant having a singlet energy which is lower than the singlet energy of the exciplex may be also used.Type: GrantFiled: September 13, 2021Date of Patent: March 26, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jang Joo Kim, Young Seo Park, Sung Hun Lee, Kwon Hyeon Kim
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Patent number: 11906490Abstract: Disclosed is a micro gas chromatography system including a fluid feeder for feeding a fluid composed of a carrier gas and a gas mixture containing an analyte component to the next stage, a micro gas preconcentrator chip configured to concentrate and desorb the analyte component contained in the fluid, a micro gas chromatography chip including a micro separation column for separating the analyte component concentrated and desorbed by the micro gas preconcentrator chip, and a micro sensing unit including a micro thermal conductivity detection sensor configured to detect the analyte component separated by the micro gas chromatography chip.Type: GrantFiled: April 23, 2019Date of Patent: February 20, 2024Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATIONInventors: Si-Hyung Lim, Jang Hyeon Lee, Jun Suk Lee
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Publication number: 20240048077Abstract: An embodiment multi-directional vibration energy harvester includes a fixing part in which fixed discs of a conductive material are stacked spaced apart from each other and electrically connected to each other and a vibration unit in which vibration discs are arranged to be spaced apart from each other with the vibration discs being alternately stacked with the fixed discs, wherein the fixed discs and the vibration discs are arranged so that as an arrangement distance between a vibration disc of the vibration discs and a fixed disc of the fixed discs is changed by an external force, an electron moves between the vibration disc and the fixed disc.Type: ApplicationFiled: January 9, 2023Publication date: February 8, 2024Inventors: Dae-Sung Kwon, II-Seon Yoo, Jang-Hyeon Lee, Dong-Gu Kim, Hyun-Soo Kim
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Publication number: 20240022184Abstract: In accordance with an embodiment, an omnidirectional energy harvester device includes: a harvesting member including an electrode pad having a first electrode disposed on an upper surface of the electrode pad, and a friction pad spaced apart from the electrode pad and having a second electrode disposed on an upper surface of the friction pad; and a vortex-induced vibration column fixedly coupled to the harvesting member at a lower surface of the vortex-induced vibration column. The vortex-induced vibration column is configured to generate vibration by an external force at an upper portion of the vortex-induced vibration column, wherein the first electrode disposed on the electrode pad and the second electrode disposed on the friction pad are electrically connected.Type: ApplicationFiled: December 7, 2022Publication date: January 18, 2024Inventors: Dae-Sung Kwon, II-Seon Yoo, Jang-Hyeon Lee, Dong-Gu Kim, Hyun-Soo Kim
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Publication number: 20240014752Abstract: An energy harvester includes an electrode part including a plurality of partition walls spaced apart from one another in a horizontal direction, and spaces defined between the plurality of partition walls, and a cantilever part including a cantilever member having at least a partial region provided in the space defined in the electrode part, the cantilever member includes a plurality of cantilever members, each of the plurality of cantilever members having a first end and a second end, wherein the first end is positioned in the space defined in the electrode part, and wherein the second end is fixedly coupled to a housing, and in which a natural frequency of at least one of the plurality of cantilever members is different from a natural frequency of each of the remaining cantilever members.Type: ApplicationFiled: December 6, 2022Publication date: January 11, 2024Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
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Publication number: 20230221271Abstract: An embodiment catalytic combustion type hydrogen sensor includes a protective thin film disposed on an upper surface of a silicon substrate, the protective thin film including an oxide film and a nitride film sequentially laminated, a heater coupled to an upper surface of the nitride film, an anti-icing film disposed on an upper surface of the protective thin film and covering the heater, the anti-icing film including micro-protrusions disposed on an outer surface thereof, and a catalyst layer deposited on an upper surface of the anti-icing film and coated along surfaces of the micro-protrusions of the anti-icing film, wherein the catalyst layer is configured to be heated by the heater to perform a hydrogen reaction for oxidizing hydrogen and to coat the surfaces of the micro-protrusions to prevent water generated through the hydrogen reaction from freezing.Type: ApplicationFiled: August 3, 2022Publication date: July 13, 2023Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
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Publication number: 20230194494Abstract: A hydrogen sensor includes a substrate, an insulating part formed on the substrate and provided with a plurality of holes, a first catalyst part formed on an upper end of the insulating part to accelerate the reaction between hydrogen and oxygen, a second catalyst part formed on a surface of the holes to accelerate the reaction between hydrogen and oxygen, and a heater part disposed inside the insulating part to heat the first catalyst part and the second catalyst part, and having an temperature increased by reaction heat generated by the reaction between hydrogen and oxygen.Type: ApplicationFiled: October 10, 2022Publication date: June 22, 2023Inventors: Il Seon Yoo, Hyun Soo Kim, Jang Hyeon Lee, Dong Gu Kim, Dae Sung Kwon
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Publication number: 20230184942Abstract: A distance detecting apparatus and a method thereof includes a dual wavelength tuning light source configured to transmit a transmission optical signal by performing band tunability and fine tunability on an optical signal based on non-mechanical scanning; a transmitter optical system configured to transmit the transmission optical signal received from the dual wavelength tuning light source to an outside: a receiver optical system configured to extract a wavelength difference between a reception optical signal received from the outside and the transmission optical signal received from the dual wavelength tuning light source; and a signal processor configured to receive the wavelength difference from the receiver optical system and convert the wavelength difference into distance information.Type: ApplicationFiled: June 8, 2022Publication date: June 15, 2023Applicants: Hyundai Motor Company, Kia Corporation, Pusan National University Industry-UniversityInventors: Sang Hyeok YANG, Hyun Soo Kim, Tae Ho Jeong, Jang Hyeon Lee, Chang Seok Kim, Han Sol Jang, Da Woon Jeong
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Publication number: 20230159322Abstract: The present disclosure relates to a microelectromechanical systems (MEMS) device and method for manufacturing the same for improving the uniformity of temperature distribution in a heater unit, and the present disclosure discloses a MEMS device and method for manufacturing the same, including a heater unit that is formed on a substrate, and a dummy pattern unit that is formed in a remaining portion except for a portion where the heater unit is formed so as not to be electrically connected to the heater unit.Type: ApplicationFiled: July 22, 2022Publication date: May 25, 2023Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
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Publication number: 20230150404Abstract: A convertible seat for a vehicle includes a base frame having a predetermined dimension of storage space, a plurality of individual blocks disposed to be ascendable and descendable in the storage space of the base frame and configured to serve as a seatback and a seat cushion, and a raising and lowering drive device installed in each of the individual blocks and configured to raise or lower a corresponding one of the individual blocks so that a seat position can be changed into various forms.Type: ApplicationFiled: October 19, 2022Publication date: May 18, 2023Applicants: HYUNDAI MOTOR COMPANY, Kia CorporationInventors: Jang Hyeon Lee, Dae Sung Kwon, Dong Gu Kim, Il Seon Yoo
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Publication number: 20230130510Abstract: Disclosed herein is a method for manufacturing a hydrogen sensor, the method comprising the steps of: disposing a thin film made of a transition metal or an alloy thereof on a surface of elastic substrate; applying a tensile force in a repetitive manner to the elastic substrate to form a nanocrack on the thin film disposed on the surface of the elastic substrate; and injecting hydrogen gas into the formed nanocrack and then removing the hydrogen gas to form a nanogap, wherein the tensile force in the step of forming a nanocrack is applied to an extent that the elastic substrate has a tensile strain of 25% to 100%.Type: ApplicationFiled: June 21, 2022Publication date: April 27, 2023Inventors: Dong Gu Kim, Jang Hyeon Lee, Dae Sung Kwon, Hyun Soo Kim, Il Seon Yoo, Tae Ho Jeong, Woo Young Lee, Hyun Sook Lee, Se Young Park, Soo Min Lee, Jin Kyo Jeong, Hae Won Yoon
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Publication number: 20230034945Abstract: An embodiment contact combustion type hydrogen sensor includes a substrate including silicon, lamination layers disposed over a top surface of the substrate and including a first thin oxide layer and a first thin nitride layer, a heater over the lamination layers, the heater including a connecting part electrically connected to a predetermined part and a heating part configured to be heated in response to power being applied, insulating layers covering a top surface of the heater and configured to perform an insulating operation, the insulating layers including a second thin oxide layer and a second thin nitride layer, a platinum catalyst over the insulating layers and configured to be heated by the heater to perform a hydrogen reaction, and a slit outside the heating part and passing through the substrate and the lamination layers.Type: ApplicationFiled: May 12, 2022Publication date: February 2, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Il Seon Yoo, Hyun Soo Kim, Jang Hyeon Lee, Dong Gu Kim, Dae Sung Kwon
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Patent number: 11450023Abstract: A method for detecting an anchor-free object based on deep learning may include receiving a target image for object detection, inputting the image to a backbond network and performing learning to generate a heatmap, post-processing the heatmap, and outputting the post-processed result on a screen.Type: GrantFiled: December 23, 2020Date of Patent: September 20, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ha Yong Woo, Jun Mo Kim, Beom Young Kim, Si Haeng Lee, Jang Hyeon Lee, Do Yeon Kim
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Patent number: 11256965Abstract: An apparatus for recognizing an object using an image includes a depth map generator that generates a depth map using a feature map of the image based on a dilated convolutional neural network (DCNN) and an object recognition device that recognizes the object using the depth map generated by the depth map generator and the image.Type: GrantFiled: October 14, 2019Date of Patent: February 22, 2022Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and TechnologyInventors: Young Hyun Kim, Yang Shin Kim, Min Woo Park, Jun Mo Kim, Si Haeng Lee, Jang Hyeon Lee, Do Yeon Kim, Hae Chang Jung
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Publication number: 20220020167Abstract: A method for detecting an anchor-free object based on deep learning may include receiving a target image for object detection, inputting the image to a backbond network and performing learning to generate a heatmap, post-processing the heatmap, and outputting the post-processed result on a screen.Type: ApplicationFiled: December 23, 2020Publication date: January 20, 2022Inventors: Ha Yong WOO, Jun Mo KIM, Beom Young KIM, Si Haeng LEE, Jang Hyeon LEE, Do Yeon KIM
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Patent number: 11130126Abstract: There is provided a fluid analysis chamber module that allows an analysis element to be replaced in a sliding manner. The module includes a middle body, an upper body, and a lower body, in which the upper body and the lower body are rotated to be in contact with an upper surface and a lower surface of the middle body and to release from the contact state. The middle body provides a chamber hole where a tray with the analysis element seated thereon can be mounted. The middle body is provided on its front end with a tray receiving opening through which the tray is mounted into the chamber hole. When the upper body and lower body are rotated to be in contact with the upper surface and the lower surface, respectively, the chamber hole is closed, a fluid supplying line and discharging line are sealed, pogo pins for power supply and signal transmission are contacted to electrodes of the analysis element.Type: GrantFiled: July 24, 2019Date of Patent: September 28, 2021Assignee: Kookmin University Industry Academy Cooperation FoundationInventors: Si Hyung Lim, Jang Hyeon Lee, Yeong Seok Lee, Ae Ran Song
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Publication number: 20200394476Abstract: An apparatus for recognizing an object using an image includes a depth map generator that generates a depth map using a feature map of the image based on a dilated convolutional neural network (DCNN) and an object recognition device that recognizes the object using the depth map generated by the depth map generator and the image.Type: ApplicationFiled: October 14, 2019Publication date: December 17, 2020Inventors: Young Hyun Kim, Yang Shin Kim, Min Woo Park, Jun Mo Kim, Si Haeng Lee, Jang Hyeon Lee, Do Yeon Kim, Hae Chang Jung
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Publication number: 20200261908Abstract: There is provided a fluid analysis chamber module that allows an analysis element to be replaced in a sliding manner. The module includes a middle body, an upper body, and a lower body, in which the upper body and the lower body are rotated to be in contact with an upper surface and a lower surface of the middle body and to release from the contact state. The middle body provides a chamber hole where a tray with the analysis element seated thereon can be mounted. The middle body is provided on its front end with a tray receiving opening through which the tray is mounted into the chamber hole. When the upper body and lower body are rotated to be in contact with the upper surface and the lower surface, respectively, the chamber hole is closed, a fluid supplying line and discharging line are sealed, pogo pins for power supply and signal transmission are contacted to electrodes of the analysis element.Type: ApplicationFiled: July 24, 2019Publication date: August 20, 2020Applicant: Kookmin University Industry Academy Cooperation FoundationInventors: Si Hyung Lim, Jang Hyeon Lee, Yeong Seok Lee, Ae Ran Song
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Publication number: 20200049673Abstract: Disclosed is a micro gas chromatography system including a fluid feeder for feeding a fluid composed of a carrier gas and a gas mixture containing an analyte component to the next stage, a micro gas preconcentrator chip configured to concentrate and desorb the analyte component contained in the fluid, a micro gas chromatography chip including a micro separation column for separating the analyte component concentrated and desorbed by the micro gas preconcentrator chip, and a micro sensing unit including a micro thermal conductivity detection sensor configured to detect the analyte component separated by the micro gas chromatography chip.Type: ApplicationFiled: April 23, 2019Publication date: February 13, 2020Inventors: Si-Hyung Lim, Jang Hyeon Lee, Jun Suk Lee
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Patent number: 9391615Abstract: A system on chip includes a plurality of function blocks configured to perform predetermined functions, respectively, a clock control unit configured to generate a plurality of operating clock signals that are provided to the plurality of function blocks, respectively, a clock monitor configured to monitor frequencies of the operating clock signals to generate an interrupt signal, and a processor configured to control the frequencies of the operating clock signals based on the interrupt signal. The clock monitor includes a selector configured to select one of the operating clock signals to provide a selected clock signal, a frequency detector configured to detect a frequency of the selected clock signal to provide a detection frequency, and an interrupt generator configured to generate the interrupt signal based on the detection frequency, where the interrupt signal indicates a frequency abnormality of the operating clock signal corresponding to the selected clock signal.Type: GrantFiled: April 22, 2015Date of Patent: July 12, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Suk Shin, Ji-Yong Ahn, Jang-Hyeon Lee