Patents by Inventor Young Woo Lee

Young Woo 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).

  • Publication number: 20250043177
    Abstract: Provided are a perovskite nanocrystal particle light-emitter where an organic ligand is substituted, and optoelectronic devices using the same. A method for manufacturing a perovskite nanocrystal particle light-emitter where an organic ligand surrounding a perovskite nanocrystal is substituted may comprise steps of: preparing a solution including nanocrystal particle light-emitter, wherein the perovskite nanocrystal particle light-emitter comprises a perovskite nanocrystal structure and a plurality of first organic ligands surrounding the perovskite nanocrystal structure; and adding, to the solution, a second organic ligand which is shorter than the first organic ligands or includes a phenyl group or a fluorine group, thereby substitutes the first organic ligands with the second organic ligand.
    Type: Application
    Filed: October 21, 2024
    Publication date: February 6, 2025
    Inventors: Tae-Woo LEE, Sanghyuk IM, Young-Hoon KIM, Himchan CHO
  • Publication number: 20250042267
    Abstract: An AC power output device includes a switching component connected to each of a plurality of batteries and configured to turn ON or OFF an electrical connection between a corresponding battery and another battery depending on an operational state, a filter component configured to receive an output voltage from the plurality of batteries, to adjust a polarity of the output voltage from the plurality of batteries according to an operational state, and to output the voltage of the adjusted polarity, and a controller configured to control the operational states of the switching component and the filter component so that the AC power is output from the plurality of batteries.
    Type: Application
    Filed: August 2, 2024
    Publication date: February 6, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Dae-Woo LEE, Young-Bo CHO, Jin-Seok HEO, Kwang-Seob KIM
  • Patent number: 12218728
    Abstract: Methods and apparatuses for joint channel state information (CSI) measurement are described herein. A method may include receiving channel state information reference signals (CSI-RSs) from first and second transmit/receive points (TRPs), determining CSI, and selecting one of the TRPs as a primary TRP and a remaining one of the first TRP or the second TRP as a secondary TRP. The method may include reporting information indicating a first CSI for the primary TRP and receiving second CSI-RSs from the TRPs. The method may include determining a second CSI and a precoding matrix indicator (PMI) for the primary TRP, and determining channel coding information for the primary TRP. The method may include determining a second CSI for the secondary TRP, determining, based on channel coding information and the second CSI for the secondary TRP and a PMI for the secondary TRP, and reporting information indicating the PMI for the second TRP.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: February 4, 2025
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Nazli Khan Beigi, Afshin Haghighat, Young Woo Kwak, Moon Il Lee
  • Patent number: 12218142
    Abstract: A display device includes: a substrate; a polycrystalline silicon film on the substrate; and a first buffer film between the substrate and the polycrystalline silicon film and having one surface contacting the polycrystalline silicon film and another surface opposite to the one surface, wherein the one surface of the first buffer film has a first root mean square (RMS) roughness range, and the first RMS roughness range is 1.5 nm or less.
    Type: Grant
    Filed: November 13, 2023
    Date of Patent: February 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Hyun Kim, Young Gil Park, Jin Suk Lee, Jai Sun Kyoung, Sug Woo Jung
  • Publication number: 20250038906
    Abstract: Methods, apparatus and systems are disclosed. In one embodiment, a method may be implemented by a first Wireless Transmit/Receive Unit (WTRU). The method may include receiving configuration information indicating a first set of RBs for performing a CSI-RS measurement, receiving an indication indicating a second set of RBs, and receiving an indication indicating that a first set of symbols or slots is not configured for a certain type of duplexing method and a second set of symbols or slots is configured for the certain type of duplexing method. The method may also include measuring a first CSI-RS in the first set of RBs in a symbol or slot in the first set of symbols or slots, measuring a second CSI-RS in a symbol or slot of the second set of symbols or slots in RBs that are in both the first set of RBs and the second set of RBs. determining a CSI based on the measurement of the first CSI-RS and the second CSI-RS, and reporting the CSI.
    Type: Application
    Filed: November 1, 2022
    Publication date: January 30, 2025
    Inventors: Jonghyun PARK, Moon IL LEE, Paul MARINIER, Young Woo KWAK, Nazli KHAN BEIGI
  • Publication number: 20250036926
    Abstract: An operation method of performing a neural network operation of fully homomorphic encrypted data is provided. The operation method includes: receiving data for performing the neural network operation and receiving a parameter for generating an approximation polynomial corresponding to the neural network operation; obtaining layer information corresponding to layers of a neural network model, the layer information based on the data; determining importances of the layers, respectively, wherein the determining of the importances is based on the parameter and the layer information; generating an approximation polynomial approximating the neural network operation for each of the layers, wherein the generating is based on the layer importance; and generating an operation result by performing the neural network operation based on the approximation polynomial, wherein the parameter includes a computation time condition that the neural network operation must satisfy.
    Type: Application
    Filed: June 25, 2024
    Publication date: January 30, 2025
    Applicants: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation, Industry-Academic Cooperation Foundation, Chosun University, CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Joon-Woo LEE, Junghyun LEE, Yongjune KIM, Young-Sik KIM, Jong-Seon NO, Eunsang LEE
  • Patent number: 12207543
    Abstract: A light-emitting layer for a halide perovskite light-emitting device, a method for manufacturing the same and a perovskite light-emitting device using the same are disclosed. The light-emitting layer can be manufactured by forming a first nanoparticle thin film by coating, on a member, a solution comprising halide perovskite nanoparticles having a halide perovskite nanocrystalline structure. Thereby, a nanoparticle light emitter has therein a halide perovskite having a crystal structure in which FCC and BCC are combined; and can show high color purity. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: January 21, 2025
    Assignee: SN DISPLAY CO., LTD.
    Inventors: Tae-Woo Lee, Sanghyuk Im, Himchan Cho, Young-Hoon Kim
  • Patent number: 12196816
    Abstract: Disclosed is a system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor. The system for managing the vehicle battery as disclosed includes a controller that measures a polarization voltage of each of a plurality of battery cells in a vehicle battery after charging of the vehicle battery is terminated, and determines whether each of the plurality of battery cells is abnormal based on the measured polarization voltage.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: January 14, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Dae Gun Jin, Woo Sung Kim, Kyung In Min, Do Sung Hwang, Ki Seung Baek, Dong Il Kim, Yoon Jun Lee, Bo Ram Yang, Ki Chul Hong, Ik Kyu Kim, Sung Il Lee, Jae Shin Yi, Young Woo Lee, Soo Yang Jin, Suk Hyung Kim, Hyun Soo Park
  • Publication number: 20250012832
    Abstract: Provided is an integrated optical system-based optical current sensor system comprising a light source generating reference light for current or magnetic field sensing, a polarizer for polarizing the reference light, a phase modulator for phase-modulating the polarized light into a predetermined reference signal, and a Faraday rotation reflector for reflecting the light propagated through an optical path at the end of the optical fiber, wherein the invention further comprises a plurality of pig-tailed optical fiber blocks in which the optical fibers are accommodated therein, and an integrated optical system composed of a plurality of optical components optically bonded to the pig-tailed blocks at interfaces with the pig-tailed blocks.
    Type: Application
    Filed: November 21, 2022
    Publication date: January 9, 2025
    Inventors: Seong-Min JU, Young-Woo LEE
  • Patent number: 12188760
    Abstract: Provided is a special optical fiber for measuring a 3D curved shape, and a system for measuring the 3D curved shape by using a special optical fiber. The special optical fiber comprises: an optical fiber core for transmitting an optical signal; an inner cladding covering the optical fiber core; and an outer cladding covering the inner cladding. In particular, the refractive index (n1) of the optical fiber core, the refractive index (n2) of the inner cladding, and the refractive index (n3) of the outer cladding are set in a relationship of n1?n3>n2. The inner cladding covering the optical fiber core has a cut portion in the longitudinal direction. The optical fiber core is exposed through the cut portion. In addition, the cut portion is filled with a material having the same refractive index as the optical fiber core or the outer cladding.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 7, 2025
    Assignees: OPTONICS CO., LTD
    Inventors: Seong Min Ju, Young Woo Lee
  • Publication number: 20250003795
    Abstract: Provided is an optical detection device for sensing environmental changes inside and outside a fiber optic sensor probe by detecting polarization and optical power differences between a plurality of input signals, the optical detection device being characterized by comprising: a plurality of optical fiber pigtail blocks internally accommodated with a portion of the optical fibers; an integrated optical system composed of a plurality of optical components optically bonded to the optical fiber pigtail blocks at interfaces with the bulk optical components; and a balanced optical detection component for comparing components of a plurality of polarized lights received from the integrated optical system.
    Type: Application
    Filed: November 16, 2022
    Publication date: January 2, 2025
    Inventors: Seong-Min JU, Young-Woo LEE
  • Publication number: 20240421368
    Abstract: A lithium ion secondary battery system includes a chamber to accommodate a lithium ion secondary battery, a charging/discharging device for electrically charging and discharging the lithium ion secondary battery, a pressure plate disposed in the chamber and configured to press the lithium ion secondary battery when the lithium ion secondary battery is electrically charged, a pointed portion disposed in the chamber and configured to bore a hole in a pouch of the lithium ion secondary battery to enable gas generated during the electrical charging of the lithium ion secondary battery to be removed from the pouch, and a sealer configured to seal the pouch after the gas is removed.
    Type: Application
    Filed: August 28, 2024
    Publication date: December 19, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Young Woo Lee, Yoon Ji Lee, Hae Won Park, Sung Hoon Lim, Seung Ho Ahn, Sang Jin Park
  • Patent number: 12158506
    Abstract: Disclosed is a system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor. The system for managing the vehicle battery as disclosed includes a controller that measures a polarization voltage of each of a plurality of battery cells in a vehicle battery after charging of the vehicle battery is terminated, and determines whether each of the plurality of battery cells is abnormal based on the measured polarization voltage.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: December 3, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Dae Gun Jin, Woo Sung Kim, Kyung In Min, Do Sung Hwang, Ki Seung Baek, Dong Il Kim, Yoon Jun Lee, Bo Ram Yang, Ki Chul Hong, Ik Kyu Kim, Sung Il Lee, Jae Shin Yi, Young Woo Lee, Soo Yang Jin, Suk Hyung Kim, Hyun Soo Park
  • Patent number: 12136709
    Abstract: A lithium ion secondary battery system includes a chamber to accommodate a lithium ion secondary battery, a charging/discharging device for electrically charging and discharging the lithium ion secondary battery, a pressure plate disposed in the chamber and configured to press the lithium ion secondary battery when the lithium ion secondary battery is electrically charged, a pointed portion disposed in the chamber and configured to bore a hole in a pouch of the lithium ion secondary battery to enable gas generated during the electrical charging of the lithium ion secondary battery to be removed from the pouch, and a sealer configured to seal the pouch after the gas is removed.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 5, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Young Woo Lee, Yoon Ji Lee, Hae Won Park, Sung Hoon Lim, Seung Ho Ahn, Sang Jin Park
  • Publication number: 20240341637
    Abstract: The present examples relate generally to patch applicators for medical devices. The medical devices may comprise a transcutaneous analyte sensor applied to the skin of a host. The apparatuses, systems, and methods disclosed may be directed to an applicator for an overlay patch for being applied to at least a portion of an on skin medical device.
    Type: Application
    Filed: April 12, 2024
    Publication date: October 17, 2024
    Inventors: Mark Selander, Young Woo Lee
  • Publication number: 20240337555
    Abstract: The present invention relates to a device for testing packaging leakage using a difference in pressure and distance. The present invention provides a device for testing packaging leakage including a test vessel having a sealed internal space that accommodates a packaged product and having a plurality of compartments, a distance measurement sensor configured to measure a distance to the packaged product, a pressure measurement sensor configured to measure a pressure in the test vessel, a vacuum pump configured to form vacuum in the internal space of the test vessel, a solenoid valve configured to adjust a vacuum level of the test vessel, and a control box interworked with the distance measurement sensor, the pressure measurement sensor, the vacuum pump, and the solenoid valve.
    Type: Application
    Filed: April 5, 2024
    Publication date: October 10, 2024
    Applicant: Defense Agency for Technology and Quality
    Inventors: Nam Rye LEE, Young Woo LEE
  • Publication number: 20240329877
    Abstract: Provided herein may be an electronic device and a method of operating the same. The electronic device may include a memory device, and a controller configured to receive an inbound protocol information unit (PIU) from an external device and control the memory device based on the inbound PIU, wherein the inbound PIU includes a basic header segment including information about an extra header segment (EHS) length, and an extra header segment defined by the EHS length, and wherein the controller is configured to generate an error message depending on whether the PIU includes an error related to the extra header segment.
    Type: Application
    Filed: October 5, 2023
    Publication date: October 3, 2024
    Inventors: Byung Jun KIM, Ji Wook KIM, Young Woo LEE, Won Kyoo LEE, Taek Gyu LEE, Young Kyu JEON, Kyoung Ku CHO
  • Patent number: 12093434
    Abstract: The present disclosure relates to a security circuit for detecting physical attacks on a system semiconductor. The security circuit includes at least: a shielding layer having a mesh structure composed of a transmission line; a processor configured to determine that a focused ion beam (FIB) circuit editing attack was detected when a difference between predetermined counter output and a first counter output is less than a first reference value; determine that a microprobing attack was detected when a difference between the second counter output and the first counter output exceeds a second reference value; and output an alarm signal when detecting the circuit editing attack or the microprobing attack.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: September 17, 2024
    Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Young Woo Lee, Jun Young Bae
  • Patent number: D1052736
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: November 26, 2024
    Assignee: DexCom, Inc.
    Inventors: Warren Terry, Patrick John Castagna, David A. Keller, Young Woo Lee, Joseph J. Baker, Randall Scott Koplin, Andrew Joncich
  • Patent number: D1053359
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: December 3, 2024
    Assignee: DexCom, Inc.
    Inventors: Young Woo Lee, Bobby Davis