Patents by Inventor Hoon Choi

Hoon 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).

  • Publication number: 20240299972
    Abstract: The present disclosure relates to a slot die coating apparatus for coating an electrode collector with an electrode active material slurry. The slot die coating apparatus includes a coating roller; a slot die comprising a slurry receiving part and a discharge opening configured to discharge the electrode active material slurry in an opposite direction on which gravity acts; an air vent installed in the slot die so that it is directly connected to a point at which the slurry receiving part and the discharge opening connect.
    Type: Application
    Filed: May 15, 2024
    Publication date: September 12, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ki Tae Kim, Taek Soo Lee, Do Hyun Lee, Cheolwoo Kim, Sang Hoon Choy
  • Patent number: 12078826
    Abstract: Provided is a display device including a display panel, and a window member on the display panel, wherein the window member includes a window base material including a flexible portion in which a first area having a first rigidity and a second area having second rigidity that is less than the first rigidity are alternately located, a buffer layer on the window base material and having a refractive index that is smaller than a refractive index of the window base material, and a filler layer on the buffer layer and having a refractive index that is smaller than the refractive index of the buffer layer.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 3, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hoon Kim, Min Sang Koo, Kyung Man Kim, Yu Ri Kim, Min Hoon Choi, Seong Jin Hwang
  • Publication number: 20240288521
    Abstract: The present disclosure relates to an antenna assembly for an imaging method, a use of an antenna assembly and a tomography system, in particular for MRI or simultaneous MR-PET/-SPECT. An antenna assembly for an imaging method comprises at least two antennas, wherein each of the two antennas is designed as a J-pole antenna with a radiation section and a feed section. The radiation sections of the two antennas are arranged crossing each other. In this way, effective decoupling of the antennas is achieved by simple means.
    Type: Application
    Filed: February 19, 2024
    Publication date: August 29, 2024
    Inventors: Chang-Hoon Choi, Nadim Joni Shah, Jörg Felder
  • Publication number: 20240291156
    Abstract: The present disclosure relates to an antenna assembly for an imaging method, a use of an antenna assembly and a tomography system, in particular for MRI or simultaneous MR-PET/SPECT. An antenna assembly for an imaging method comprises at least two adjacent antennas, wherein each of the at least two antennas is designed as a J-pole antenna with a radiation section and a feed section. The at least two antennas are arranged alternately at a first angle and a second angle different from the first angle in relation to a reference surface. In this way, effective decoupling of the two antennas is achieved by simple means.
    Type: Application
    Filed: February 19, 2024
    Publication date: August 29, 2024
    Inventors: Nadim Joni Shah, Chang-Hoon Choi, Jörg Felder, Suk-Min Hong
  • Publication number: 20240291019
    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: Application
    Filed: March 29, 2024
    Publication date: August 29, 2024
    Inventors: Sang Bok KIM, Jik Soo KIM, Jeong Bae YOON, Seung Ok LEE, Ji Hoon CHOI
  • Publication number: 20240290285
    Abstract: A gate driving panel circuit and a display device are discussed. The gate driving circuit in an example includes n gate driving panel circuits configured to output two or more gate signals where, n is a natural number equal to or larger than 2, a start dummy gate driving panel circuit configured to generate a first feedback voltage and transfer a start carry signal to a first gate driving panel circuit among the plurality of gate driving panel circuits, and an end dummy gate driving panel circuit configured to generate a second feedback voltage and transferring an end carry signal to an nth gate driving panel circuit.
    Type: Application
    Filed: February 28, 2024
    Publication date: August 29, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hoon CHOI, HongJae SHIN, YongHo KIM
  • Patent number: 12074316
    Abstract: Provided is an electrode for a lithium secondary battery having excellent resistance and output characteristics while achieving high capacity characteristics due to a high active material content.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 27, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jihee Yoon, Taek Soo Lee, Sang Hoon Choy, Cheolwoo Kim
  • Publication number: 20240278528
    Abstract: A composite insulating material includes two or more blankets, each having a substrate for a blanket and aerogel formed on the inside and a surface of the substrate for the blanket, and a super absorbent polymer layer including super absorbent polymer particles located between the blankets.
    Type: Application
    Filed: June 1, 2023
    Publication date: August 22, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Jong Hun Kim, Jae Hoon Choi, Chang Song Lee, Yong Jin Kim, Kyoung Shil Oh
  • Patent number: 12068475
    Abstract: A cathode active material for a lithium secondary battery includes a lithium-aluminum-titanium oxide formed on a surface of a lithium metal oxide particle having a specific formula. The cathode active material may have an improved structural stability even in a high temperature condition.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: August 20, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Mi Jung Noh, Jik Soo Kim, Sang Bok Kim, Ji Hoon Choi, Kook Hyun Han
  • Patent number: 12068051
    Abstract: Techniques for mitigating/eliminating the impact of duty distortion caused by delays in clock paths within a built-in high-frequency test circuit for NAND flash are disclosed. By mitigating or eliminating the impact of duty distortion, accuracy of the valid data window measurement is ensured. Rising edges of a strobe clock signal and an inverted strobe clock signal are used to respectively locate even and odd data (or vice versa) within an input buffer of the NAND flash during respective sweeps of the strobe and inverted strobe clock signals. In this manner, even if the strobe clock signal's duty ratio is distorted, there is no impact on the valid data window measurement. Further, read latency is used to introduce delay to a read enable (RE) clock signal, thereby obviating the need for a replica controlled delay in the RE clock path and eliminating the duty distortion that would otherwise occur.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: August 20, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Hoon Choi, Anil Pai, Venkatesh Prasad Ramachandra
  • Publication number: 20240270979
    Abstract: Provided is a surface-treated steel sheet including: a steel sheet; and a corrosion-resistant film layer formed on at least one surface of the steel sheet. The corrosion-resistant film layer includes a product formed by a hydrolysis reaction of silica and an alkoxy silane and an acrylate-based polymer, comprises 25 to 65 wt % of carbon (C), 20 to 70 wt % of silicon (Si), and 1 to 40 wt % of oxygen (O), and in the corrosion-resistant film layer, a ratio of silicon (Si) to oxygen (O) (Si—O bonding) and silicon (Si) to carbon (C) (Si—C bonding) is 80 to 95 wt %:5 to 20 wt %.
    Type: Application
    Filed: March 22, 2024
    Publication date: August 15, 2024
    Inventors: Chang-Hoon CHOI, Dong-Yun KIM, Min-Ho JO, Jae-Duck KO, Won-Ho SON, Jong-Hwa KIM
  • Publication number: 20240271247
    Abstract: A process disclosed herein is related to the isolation and purification of substantially pure chemicals, including silica gel, sodium silicate, aluminum silicate, iron oxide, and rare earth elements (or rare earth metals, REEs), from massive industrial waste coal ash. In one embodiment, the process includes a plurality of caustic extractions of coal ash at an elevated temperature, followed by an acidic treatment to dissolve aluminum silicate and REEs. The dissolved aluminum silicate is precipitated out by pH adjustment as a solid product while REEs remain in the solution. REEs are captured and enriched using an ion exchange column. Alternatively, the solution containing aluminum silicate and REEs is heated to produce silica gel, which is easily separated from the enriched REEs solution. REEs are then isolated and purified from the enriched solution to afford substantially pure individual REE by a ligand-assisted chromatography.
    Type: Application
    Filed: January 9, 2024
    Publication date: August 15, 2024
    Inventors: Nien-Hwa Linda Wang, Hoon Choi, David Harvey
  • Publication number: 20240272129
    Abstract: The present disclosure relates to a virtual sensor system for measuring a VOC inflow amount of an RTO and a method for verifying a VOC measurement sensor using the same, specifically a two methods-based virtual sensor system that can be used in parallel with a VOC measurement sensor to check a calibration time point and can ultimately replace the VOC measurement sensor, and a method for verifying the reliability of the VOC measurement sensor using the same.
    Type: Application
    Filed: August 26, 2022
    Publication date: August 15, 2024
    Inventors: Ye Rin JEON, Jae Hoon CHOI, Chang Song LEE
  • Publication number: 20240264089
    Abstract: A marking system is provided for identifying defects of an electrode sheet including that includes an active material layer coated with an electrode active material and a non-coating portion disposed at one side in a width direction of the active material layer. The marking system for identifying the defects of the electrode sheet may include: a vision sensor configured to detect the defects of the electrode sheet; a heater disposed behind the vision sensor in a moving direction of the electrode sheet, the heater being configured to heat the non-coating portion when the defects are detected by the vision sensor; a marker configured to mark ink on an area corresponding to each defect on the non-coating portion heated by the heater; and a blower disposed behind the marker in the moving direction of the electrode sheet to dry the ink on the area.
    Type: Application
    Filed: April 7, 2022
    Publication date: August 8, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Dong Hyeok Shin, Sang Hoon Choy, Jeong Soo Seol, In Sang Cho
  • Publication number: 20240266510
    Abstract: An electrode for an electrochemical device includes an electrode active material layer having a multilayer structure including a lower sublayer and an upper sublayer having a stair-like structure defined between them along a peripheral region of the electrode active material layer, due to the areal difference of each layer, thereby facilitating control of the capacity ratio of the positive electrode to the negative electrode. A process for manufacturing the electrode includes formation of the stair-like structure, which provides higher processing efficiency as compared to the process of accurately matching the ends of the electrodes. Therefore, when controlling the electrode manufacturing process to realize a multilayer electrode having an adequate stair width that is not excessively out of range, it is possible to enhance the processing efficiency and to control the capacity ratio of the resultant electrode.
    Type: Application
    Filed: June 21, 2022
    Publication date: August 8, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Taek-Soo Lee, Shin-Wook Jeon, Young-Joon Jo, Sang-Hoon Choy
  • Patent number: 12054643
    Abstract: Provided is a composition for steel sheet surface coating, the composition comprising colloidal silica, a silane, a monomer, an organic resin, an acidity adjuster, a long-term corrosion-resistance improver, and a solvent; and a steel sheet coated with the composition. The steel sheet has excellent acid resistance, and maintains thickness uniformity thereof even when exposed to an acid for an extended period of time.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 6, 2024
    Assignees: POSCO CO., LTD, NOROO COIL COATINGS CO., LTD.
    Inventors: Chang-Hoon Choi, Dong-Yun Kim, Won-Ho Son, Hee-Jea Eun, Jae-Duck Ko
  • Patent number: 12057567
    Abstract: The present invention relates to an electrode slurry coating device and method, wherein the heights of first and second slot die heads for discharging active material can be controlled according to time to improve process efficiency and reduce defect rates when forming an active material layer having a double layer structure.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 6, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Taek Soo Lee, Sang Hoon Choy, Ki Tae Kim, Cheol Woo Kim, Young Joon Jo
  • Patent number: 12054025
    Abstract: An apparatus for controlling a suspension of a vehicle includes: an illuminance sensor that measures illuminance outside the vehicle, a camera that takes an image of a road surface ahead the vehicle, and a controller that recognizes an obstacle located on the road surface based on the image of the road surface ahead the vehicle, determines a type of the obstacle depending on the measured illuminance outside the vehicle, and controls a damping force of the suspension based on control information corresponding to the type of the obstacle when the vehicle passes over the obstacle.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: August 6, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hyung Jin Kim, Young Jae Kim, Yoon Kab Noh, Jong Hoon Choi, In Yong Jung, Byung Joo Kim
  • Patent number: 12057335
    Abstract: Provided is a concentration measuring apparatus, which measures a concentration of a fluid under a high-pressure environment, such as an environment in which a supercritical fluid is provided. The concentration measuring apparatus includes: a concentration meter for measuring a concentration of a first fluid contained in a fluid in the measurement line; a sampling line for transferring a process fluid of a processing space in which a substrate is treated in a high-pressure environment to the measurement line; a control valve for opening and closing the sampling line; a fluid pressure regulator installed downstream the control valve in the sampling line and configured to adjust the passing fluid to a set pressure; and a decompression tank installed between the sampling line and the measurement line.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: August 6, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Sang Min Lee, Jin Se Park, Ki Hoon Choi
  • Patent number: D1040711
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: September 3, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Hoon Choi, Kyung Ryun Shin