Patents by Inventor Chang-Hoon Choi

Chang-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).

  • Patent number: 12241612
    Abstract: A lighting apparatus for a vehicle includes a base plate having a plurality of mounting portions and a plurality of lighting modules detachably mounted to the plurality of mounting portions. The plurality of lighting modules is configured to radiate light and to define a design of the lighting apparatus depending on locations at which the lighting modules are mounted.
    Type: Grant
    Filed: November 21, 2023
    Date of Patent: March 4, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Hoon Choi, Byeong Ho Jeong
  • Publication number: 20250051929
    Abstract: The present invention relates to a solution composition capable of improving pitting corrosion resistance and blackening resistance of a steel sheet, a steel sheet surface-treated using same, and a method for manufacturing the steel sheet.
    Type: Application
    Filed: December 19, 2022
    Publication date: February 13, 2025
    Applicant: POSCO CO., LTD
    Inventors: Chang-Hoon Choi, Soo-Hyoun Cho, Tae-Chul Kim, Sung-Joo Kim
  • Publication number: 20250047999
    Abstract: A system on chip and method for operating a system on chip are provided. A system on chip includes a shared memory configured to store image data and a processor configured to: generate a first correction value by performing first image processing for a first pixel value of a first pixel of the image data received from the shared memory, generate a second correction value by performing second image processing, which is different from the first image processing, for the first pixel value of the image data received from the shared memory, generate a third correction value by performing third image processing, which is different from the first image processing and the second image processing, for the first pixel value of the image data received from the shared memory, and output a first pixel correction value that is changed from the first pixel value by comparing the first to third correction values with the first pixel value and selecting one of the first to third correction values.
    Type: Application
    Filed: June 10, 2024
    Publication date: February 6, 2025
    Inventors: Chang Hoon CHOI, Hyun Yup KWAK, Yong Mi LEE, Seung Won CHOI, Jong Seong CHOI, Sung Jin HUH
  • Patent number: 12181545
    Abstract: A coil assembly for use as a transmission and/or receiving coil in an MR system comprises a dipole antenna assembly with multiple dipole antennas. Connection elements are converted from an electrically conductive state to an electrically non-conductive state. In the electrically conductive state, the dipole antennas form a cylindrical volume coil and/or a conductor loop assembly, in particular a flat conductor loop assembly. The connection elements comprise blocking circuits which automatically block when a high-frequency alternating voltage with a frequency corresponding to the blocking frequency of the connection element blocking circuits is applied to the coil assembly.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 31, 2024
    Assignee: Forschungszentrum Jülich GmbH
    Inventors: Suk Min Hong, Nadim Joni Shah, Chang-Hoon Choi, Jörg Felder
  • Publication number: 20240369654
    Abstract: Coils and assemblies for magnetic resonance imaging or spectroscopy, and methods for generating or detecting magnetic fields with coils. The coil includes a first loop and a second loop. The first loop includes one or more capacitors. The second loop includes one or more capacitors. The second loop is connected to the first loop by a conductor. A total capacitance of the first loop is different from a total capacitance of the second loop.
    Type: Application
    Filed: April 30, 2024
    Publication date: November 7, 2024
    Inventors: Suk-Min HONG, Nadim Joni SHAH, Chang-Hoon CHOI, Jörg FELDER
  • Publication number: 20240351065
    Abstract: Provided is a bilayer composition for surface treatment of a steel plate and a surface-treated steel plate using same. The bilayer composition for surface treatment of a steel plate, comprising an undercoat coating composition including 1 to 12 wt % of a phenoxy resin, 0.001 to 1.0 wt % of colloidal silica, 0.001 to 1.0 wt % of a silane coupling agent, 0.1 to 1.0 wt % of a corrosion inhibitor, 0.001 to 1.0 wt % of a phosphoric acid compound as a long-term corrosion resistance improving agent, and a balance of water; and a topcoat coating composition including 0.1 to 5.0 wt % of an acrylic acid resin, 30 to 50 wt % of colloidal silica, 40 to 60 wt % of alkoxy silane, 5 to 15 wt % of an acrylate-based monomer, 0.01 to 1.00 wt % of an acidity control agent, and a balance of an organic solvent.
    Type: Application
    Filed: July 3, 2024
    Publication date: October 24, 2024
    Inventors: Chang-Hoon CHOI, Won-Ho SON, Hee-Jea EUN
  • Publication number: 20240353081
    Abstract: A lighting apparatus for a vehicle includes a base plate having a plurality of mounting portions and a plurality of lighting modules detachably mounted to the plurality of mounting portions. The plurality of lighting modules is configured to radiate light and to define a design of the lighting apparatus depending on locations at which the lighting modules are mounted.
    Type: Application
    Filed: November 21, 2023
    Publication date: October 24, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Chang Hoon Choi, Byeong Ho Jeong
  • Patent number: 12123931
    Abstract: A dipole antenna array includes at least two dipole antenna elements. Each respective dipole antenna element has at one end a fold which consists of a bend, a bent region, and the projection of the bent region of the dipole antenna element onto a length of the dipole antenna element. Each respective dipole antenna element at least partially encloses a cavity.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: October 22, 2024
    Assignee: FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: Chang-Hoon Choi, Joerg Felder, Suk Min Hong, Christoph Lerche, Nadim Joni Shah
  • Publication number: 20240334084
    Abstract: A defective pixel correction device is provided. The defective pixel correction device includes: a pixel grading circuit configured to output a grade map including a plurality of grades indicating defect levels and respectively corresponding to a plurality of pixels included in an input image; a pixel selection circuit configured to select one or more candidate pixels from among the plurality of pixels, based on whether the plurality of grades correspond to a correction level, in the grade map; and a correction circuit configured to correct the one or more candidate pixels.
    Type: Application
    Filed: January 18, 2024
    Publication date: October 3, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Hoon CHOI, Hyunyup Kwak, Jaeuk Ahn, Yongmi Lee, Seungwon Choi
  • 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
  • Patent number: D1045153
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: October 1, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1045154
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: October 1, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1045155
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: October 1, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1045156
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: October 1, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1045157
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: October 1, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1050511
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: November 5, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1063137
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: February 18, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1072294
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: April 22, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang
  • Patent number: D1073143
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: April 29, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Chang Hoon Choi, Dai Sung Kim, Byeong Ho Jeong, Won Suk Kang