Patents by Inventor Seung Bae Lee

Seung Bae 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: 20240155938
    Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 9, 2024
    Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Patent number: 11973179
    Abstract: A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 30, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Sang Bok Kim, Jik Soo Kim, Jeong Bae Yoon, Seung Ok Lee, Ji Hoon Choi
  • Publication number: 20240136404
    Abstract: Disclosed are a SiC MOSFET power semiconductor device and a method of manufacturing the same. More particularly, a SiC MOSFET power semiconductor device and a method of manufacturing the same are disclosed, including a trench gate having a hexagonal shape in a plan or layout view, to improve on-resistance (Rsp) characteristics and increase channel density.
    Type: Application
    Filed: April 20, 2023
    Publication date: April 25, 2024
    Inventors: Hee Bae LEE, Jae Yuhn MOON, Seung Hyun KIM
  • Publication number: 20240128260
    Abstract: Disclosed are a semiconductor device (1) including a MOSPET region and an integrated diode region, and a manufacturing method thereof. More particularly, a semiconductor device (1) including a silicon carbide (SiC) MOSPET region and an integrated Schottky bather diode that reduce forward voltage drop (Vf), device area, and switching oscillation resulting from parasitic inductance are disclosed.
    Type: Application
    Filed: April 17, 2023
    Publication date: April 18, 2024
    Inventors: Seung Hyun KIM, Hee Bae LEE, Jae Yuhn MOON, Soon Jong PARK
  • Patent number: 11961775
    Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: April 16, 2024
    Assignee: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
  • Publication number: 20240119876
    Abstract: A method of displaying an image in a display device may include determining the degree of deterioration of pixels included in a display unit based on image data of a current frame image, determining a shift route of the current frame image so as to correspond to the determined degree of deterioration. The first image data is corrected to second image data so that the current frame image is shifted along the shift route.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 11, 2024
    Inventors: Kang Hee LEE, Gil Bae PARK, Seung Ho PARK
  • Publication number: 20240122053
    Abstract: Provided are display panel manufacturing method and apparatus. The display panel manufacturing method includes detecting a machining target area of a bottom layer, removing an area, overlapping the machining target area, of a top layer, emitting a laser beam to the machining target area of the bottom layer to provide a bottom pattern from the machining target area, and providing a compensation pattern in the removed area of the top layer.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 11, 2024
    Inventors: SUNGJUN KIM, WOO HYUK KWON, JAE MYOUN DO, BONG HO SUL, SEUNG NOH LEE, GYEOM UK KIM, YOUNG-BAE KIM, YOUNG-JUN YUN, KYUNGCHEOL LEE, KYUNGSEOK HEO, GUN-A HWANG, MINHO HWANG
  • Patent number: 11935472
    Abstract: The present disclosure relates to a pixel sensing circuit which extends an operation section of an integrator by using an additional signal and allows securing a time required for a stable output of a sensing voltage.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 19, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Seung Hwan Ji, Sang Min Lee, Gi Baek Choi, Jung Bae Yun
  • Publication number: 20240090318
    Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 14, 2024
    Inventors: Se-Jin LEE, Seok-Bae PARK, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae Gyun LEE, Joon-Ho KIM
  • Patent number: 11919122
    Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 5, 2024
    Assignees: SAMSUNG DISPLAY CO., LTD., KCTECH CO., LTD.
    Inventors: Seung Bae Kang, Sung Hyeon Park, Jung Gun Nam, Joon-Hwa Bae, Kyung Bo Lee, Keun Woo Lee, Woo Jin Cho, Byoung Kwon Choo
  • Patent number: 11800353
    Abstract: A locking apparatus according to an embodiment includes an approach detector, a signal transmitter, a measurer, and a controller. The approach detector detects an approach of a user carrying a terminal. The signal transmitter transmits a key authentication signal for authenticating a pre-shared digital key to the terminal using first short-range wireless communication when the approach of the user is detected. The measurer connects a session by generating a security channel with the terminal using second short-range wireless communication and measuring at least one of a distance to and an angle with respect to the terminal when the digital key is authenticated through the key authentication signal. The controller determines whether or not to unlock an access facility in accordance with at least one of the distance to and the angle with respect to the terminal.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Hyo Il Lee, Hee Jin Park, Dong Yeol Kim, Jong Soo Park, Seung Bae Lee
  • Patent number: 11782101
    Abstract: A data acquisition system (DAS) for acquiring data from a Hall effect sensor includes one or more state variables, a multiplexer that periodically rotates a signal from the Hall effect sensor, and a controller that resets the one or more state variables in synchronization with rotation of the signal. The state variables may be digital states in a digital memory or voltages of capacitors the controller forces to a reset voltage. The state variables may be included in a noise-shaping SAR ADC, a delta-sigma ADC, a digital filter, an integrator, an analog filter, a VCO, an incremental ADC or an auxiliary ADC-assisted incremental ADC, or an auxiliary ADC of the DAS.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: October 10, 2023
    Assignee: Cirrus Logic, Inc.
    Inventors: Prashanth Drakshapalli, John L. Melanson, Anindya Bhattacharya, Seung Bae Lee
  • Publication number: 20230155215
    Abstract: The present invention relates to a pouch-shaped secondary battery sealing apparatus and a pouch-shaped secondary battery manufacturing method capable of radiating an infrared laser to a sealed portion in an overlapping state, whereby it is possible to increase sealing force, to prevent occurrence of wrinkles, and to reduce sealing time when forming a sealed portion of a pouch-shaped secondary battery case.
    Type: Application
    Filed: February 16, 2021
    Publication date: May 18, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ju Hwan Baek, Seung Bae Lee, Jung Su Oh
  • Publication number: 20220363505
    Abstract: An automatic electrode supply apparatus configured to automatically supply an electrode in various processes for manufacturing a secondary battery includes a first chuck splicing unit including a splicing portion having a traveling electrode located thereon and a second chuck splicing unit including a splicing portion having a standby electrode located thereon, wherein each of the first and second chuck splicing units includes an edge position control (EPC) sensor configured to measure the position of the edge of a corresponding one of the traveling electrode and the standby electrode in order to prevent distortion or fracture defect of the electrode due to positional deviation between the traveling electrode and the standby electrode, and an automatic electrode supply method using the same.
    Type: Application
    Filed: October 8, 2020
    Publication date: November 17, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Young Soo LEE, Jin Soo LEE, Seung Bae LEE, Hong Ju HWANG
  • Patent number: 11489534
    Abstract: Digital-to-analog converter (DAC) architecture, comprising: a matrix DAC array comprising a plurality of cells arranged in a first dimension and a second dimension, each cell comprising a local decoder configured to transition the cell between at least two states; and decoding circuitry configured to: receive a digital input signal; and control the plurality of local decoders based on a received digital input signal, wherein each incremental change in the digital input signal results in a transition of a single cell of the plurality of cells such that the plurality of cells transition in sequence, the sequence of transitions of the plurality of cells defining a path through the DAC array; wherein when the path proceeds in the first dimension, the path proceeds to an adjacent cell of the plurality of cells at least 50% of the time; and wherein when the path proceeds in the second dimension, the path proceeds to an adjacent cell of the plurality of cells at least 50% of the time.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: November 1, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Seung Bae Lee, Sunny Bhagia, Jaiminkumar Mehta, Anindya Bhattacharya, John L. Melanson
  • Patent number: 11487381
    Abstract: An integrated force sensing element includes a piezoelectric sensor formed in an integrated circuit (IC) chip and a strain gauge at least partially overlying the piezoelectric sensor, where the piezoelectric sensor is able to flex. A human-machine interface using the integrated force sensing element is also disclosed and may include a conditioning circuit, temperature gauge, FRAM and a processor core.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 1, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Wei-Yan Shih, Steve Kummerl, Mark Stephen Toth, Alok Lohia, Terry Lee Sculley, Seung Bae Lee, Scott Robert Summerfelt
  • Publication number: 20220225089
    Abstract: A locking apparatus according to an embodiment includes an approach detector, a signal transmitter, a measurer, and a controller. The approach detector detects an approach of a user carrying a terminal. The signal transmitter transmits a key authentication signal for authenticating a pre-shared digital key to the terminal using first short-range wireless communication when the approach of the user is detected. The measurer connects a session by generating a security channel with the terminal using second short-range wireless communication and measuring at least one of a distance to and an angle with respect to the terminal when the digital key is authenticated through the key authentication signal. The controller determines whether or not to unlock an access facility in accordance with at least one of the distance to and the angle with respect to the terminal.
    Type: Application
    Filed: October 29, 2021
    Publication date: July 14, 2022
    Inventors: Hyo Il LEE, Hee Jin PARK, Dong Yeol KIM, Jong Soo PARK, Seung Bae LEE
  • Publication number: 20220130648
    Abstract: The inventive concept provides a substrate treating apparatus. The substrate includes a process chamber in which a substrate is treated, and a transfer robot that transfers the substrate and a focusing ring provided in a treatment space of the process chamber to the treatment space and having a hand, wherein the process chamber includes a treatment container that provides the treatment space, a chuck having a support surface supporting the substrate in the treatment space, and a lift pin module that lifts a lower surface of the focusing ring in a state in which the substrate is supported by the focusing ring, and the chuck is provided as a blocking plate in which a lift pin hole is not formed.
    Type: Application
    Filed: October 11, 2021
    Publication date: April 28, 2022
    Applicant: SEMES CO., LTD.
    Inventor: Seung Bae LEE
  • Patent number: 11290120
    Abstract: A data acquisition system (DAS) for processing an input signal from a resistive sensor (e.g., Hall effect sensor) includes a sensor signal path that digitizes the input signal. An input impedance of the sensor signal path attenuates the input signal. A gain error corrector applies a gain error correction factor in a digital domain of the DAS to the digitized input signal to compensate for a loading effect to the resistive sensor. The sensor signal path includes an inverting amplifier that provides low distortion for the input signal and an ADC (e.g., delta-sigma, SAR, pipelined, auxiliary) that digitizes the input signal. A sensor characterization path digitizes the sensor resistance which the gain error corrector uses, along with the inverting amplifier input impedance, to calculate the gain error correction factor.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: March 29, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Seung Bae Lee, John L. Melanson, Anindya Bhattacharya, Prashanth Drakshapalli
  • Publication number: 20220045689
    Abstract: A data acquisition system (DAS) for processing an input signal from a resistive sensor (e.g., Hall effect sensor) includes a sensor signal path that digitizes the input signal. An input impedance of the sensor signal path attenuates the input signal. A gain error corrector applies a gain error correction factor in a digital domain of the DAS to the digitized input signal to compensate for a loading effect to the resistive sensor. The sensor signal path includes an inverting amplifier that provides low distortion for the input signal and an ADC (e.g., delta-sigma, SAR, pipelined, auxiliary) that digitizes the input signal. A sensor characterization path digitizes the sensor resistance which the gain error corrector uses, along with the inverting amplifier input impedance, to calculate the gain error correction factor.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 10, 2022
    Inventors: Seung Bae Lee, John L. Melanson, Anindya Bhattacharya, Prashanth Drakshapalli