Patents by Inventor Byung-Kyu Park

Byung-Kyu Park 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: 20250174701
    Abstract: A winding roll structure configured to implement edge bending of an electrode assembly according to one embodiment of the present disclosure, and wind the electrode assembly including a first electrode plate and a second electrode plate, and a separator disposed therebetween, includes an edge bending unit configured to bend both side edges in a longitudinal direction of the electrode assembly in one direction, and a winding unit configured to wind the electrode assembly that has passed through the edge bending unit, wherein the edge bending unit includes a pinch roller and an anvil roller each extending in a longitudinal direction and arranged in parallel, the pinch roller includes a roller main body, and a pair of enlarged diameter portions provided at both ends of the roller main body and having a larger diameter than the roller main body, the anvil roller is disposed adjacent to the pinch roller between the pair of enlarged diameter portions, and both side edges in the longitudinal direction of the electro
    Type: Application
    Filed: June 27, 2024
    Publication date: May 29, 2025
    Inventors: Jung Hyun PARK, Jung Hyun KIM, Joung Ku KIM, Hyun Ki JUNG, Myung Seob KIM, Joo Youn SHIN, Byung Kyu PARK, Gye Won LEE
  • Publication number: 20240072294
    Abstract: A cylindrical secondary battery and a manufacturing method of a secondary battery are provided. A manufacturing method of a cylindrical secondary battery includes: winding an electrode assembly to expose a first electrode uncoated portion and a second electrode uncoated portion to opposite ends in a longitudinal direction; bending at least some portions of the first electrode uncoated portion and the second electrode uncoated portion of the electrode assembly in a direction by pressing the first electrode uncoated portion and the second electrode uncoated portion; welding electrode collector plates to ends of the bent first and second electrode uncoated portions; and inserting and sealing the electrode assembly into a cylindrical case.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 29, 2024
    Inventors: Jung Hyun KIM, Joung Ku KIM, Byung Kyu PARK, Jung Hyun PARK, Joo Youn SHIN, Gye Won LEE, Dong Sub LEE, Hyun Ki JUNG
  • Publication number: 20240057395
    Abstract: A display device includes: a first substrate including first, second, and third light emitting areas, first, second, and third pixel electrodes respectively in the first, second, and third light emitting areas on the first substrate, a pixel defining layer in the non-light emitting area on the first substrate and defining a peripheral opening partially overlapping the non-light emitting area, a second substrate including first, second, and third light transmitting areas and a light blocking area surrounding the first, second, and third light transmitting areas, a bank layer in the light blocking area on one surface of the second substrate, defining a first opening overlapping each of the first, second, and third light transmitting areas, and defining second openings overlapping the light blocking area wherein each of the second openings has a polygonal planar shape, and a color conversion layer in the first opening and including color conversion particles.
    Type: Application
    Filed: June 26, 2023
    Publication date: February 15, 2024
    Inventors: BYUNG-KYU PARK, JONGOH KIM, HYUNGAB BANG, HOJUN LEE, HOYOUNG KIM, HYUNG-HO PARK
  • Publication number: 20240057450
    Abstract: A display device includes: a plurality of light emitting elements; an encapsulation layer disposed on the light emitting elements to cover the light emitting elements; a foreign substance disposed on at least one of the light emitting elements, where the foreign substance is disposed through at least a portion of the encapsulation layer and a protruding part is defined by a portion protruding from a top flat surface of the encapsulation layer by the foreign substance; a reinforcing filling layer disposed on the encapsulation layer to cover the protruding part; a filling layer disposed on the encapsulation layer and the reinforcing filling layer; and a color conversion layer disposed on the filling layer.
    Type: Application
    Filed: April 21, 2023
    Publication date: February 15, 2024
    Inventors: BYUNG-KYU PARK, JONGOH KIM, GYUMIN KIM
  • Publication number: 20210296392
    Abstract: Test structures and alignment marks enable accurate measurements of alignment in the active area of an image sensor device. The alignment marks are formed in the active area replacing pixels near the lithographic shot boundaries of the array. Misalignment across the lithographic shots is assessed through the degree of shifting between the alignment patterns. The alignment marks are located in a pixel location of the active area and can measure the actual lithographic shot-to-shot misalignment in the active area, which can be used to make an accurate lithographic alignment. Having such alignment marks allows for a more accurate assessment of the in-line process manufacturing capability as well as a more rapid feedback of in-array drift, which would allow a faster and better control for yield loss.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Ick-Hwan Ko, Karthik Nagarajan, Byung-Kyu Park, Shawn Michael O'Rourke
  • Patent number: 10930642
    Abstract: An image sensor array includes pixels arranged in rows and columns, wherein each pixel includes a transistor serially coupled to a photodiode, data lines coupled to a first node of the pixel, bias lines coupled to a second node of the pixel, gate lines coupled to a third node of the pixel, and electrostatic-discharge (ESD) circuits coupled between the gate lines and an ESD bus, wherein the ESD circuits each include first and second metal oxide offset bottom gate transistors in parallel connection.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: February 23, 2021
    Assignee: DPIX, LLC
    Inventors: Jungwon Park, Ick-Hwan Ko, Byung-Kyu Park
  • Publication number: 20200335454
    Abstract: The present invention relates to a radiation-resistant metal oxide semiconductor composition containing zinc-indium-tin oxide (ZITO) exhibiting radiation resistance, and a preparation method and use thereof. In the present invention, the radiation-resistant metal oxide semiconductor composition containing ZITO exhibiting radiation resistance is used in an electronic device for radiation exposure, which is used in outer space, nuclear power plants, or in spaces where medical or security devices are utilized by means of radiation, and thus, the damage caused by radiation can be prevented, thereby improving the electrical properties of the device (e.g., turn-on voltage (Von)), and the life-span and reliability thereof.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Applicant: Chung Ang University Industry Academic Cooperation Foundation
    Inventors: Choongik Kim, Myung Gil Kim, Dongil Ho, Byung Kyu Park
  • Publication number: 20200075577
    Abstract: An image sensor array includes pixels arranged in rows and columns, wherein each pixel includes a transistor serially coupled to a photodiode, data lines coupled to a first node of the pixel, bias lines coupled to a second node of the pixel, gate lines coupled to a third node of the pixel, and electrostatic-discharge (ESD) circuits coupled between the gate lines and an ESD bus, wherein the ESD circuits each include first and second metal oxide offset bottom gate transistors in parallel connection.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 5, 2020
    Inventors: Jungwon Park, Ick-Hwan Ko, Byung-Kyu Park
  • Patent number: 10147765
    Abstract: A test structure for characterizing an organic photodiode image sensor includes, on a common substrate, a cathode sheet resistance portion; a diode capacitance portion; an organic photodiode sheet resistance portion; a contact resistance portion; a step coverage portion; a quantum efficiency portion; a film adhesion portion; and an inkjet printing portion. The organic photodiode sheet resistance portion includes gate metal sets, each gate metal set including four evenly spaced metal lines terminating in a probe point, wherein the spacing within each gate metal set is progressively increased from a first gate metal set to a last gate metal set, and wherein a spacing between each gate metal set is larger than the spacing within any gate metal set; and an organic photodiode sheet formed over the gate metal sets.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 4, 2018
    Assignee: DPIX, LLC
    Inventors: Byung-Kyu Park, Edward Myers, Ick-Hwan Ko, Karthik Nagarajan, Shawn Michael O'Rourke
  • Patent number: 10147718
    Abstract: An ESD circuit includes a first metal oxide channel device having a drain coupled to a first node, a source coupled to a second node, and a gate coupled to the first node; a second metal oxide channel device having a source coupled to the first node, a drain coupled to the second node, and a gate coupled to the second node; a first capacitor coupled between the first and second nodes proximate to the first metal oxide channel device; and a second capacitor coupled between the first and second nodes proximate to the second metal oxide channel device. The ESD circuit can further include a third capacitor coupled between the first and second nodes proximate to the first capacitor. The ESD circuit can further include a fourth capacitor coupled between the first and second nodes proximate to the second capacitor.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: December 4, 2018
    Assignee: DPIX, LLC
    Inventors: Byung-Kyu Park, Karthik Nagarajan, Jungwon Park, Yang-Wen Chen, Ick-Hwan Ko
  • Patent number: 10026863
    Abstract: A method of manufacturing a sensor array includes providing a carrier glass substrate, forming an amorphous silicon layer over the carrier glass substrate, forming a first heat buffer layer over the amorphous silicon layer; forming a mirror layer over the first heat buffer layer; forming a second heat buffer layer over the mirror layer; forming a flexible substrate over the second heat buffer layer; and forming an active device layer over the flexible substrate. The method of the present invention further comprises exposing the sensor array to light from a flash lamp and then detaching the carrier glass substrate from the sensor array. The method of the present invention optionally further comprises filtering the light from the flash lamp to wavelengths below 350 nm.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: July 17, 2018
    Assignee: DPIX, LLC
    Inventors: Frank Caris, Shawn Michael O'Rourke, Byung-Kyu Park, Terri Renae Pederson
  • Publication number: 20180130845
    Abstract: Test structures and alignment marks enable accurate measurements of alignment in the active area of an image sensor device. The alignment marks are formed in the active area replacing pixels near the lithographic shot boundaries of the array. Misalignment across the lithographic shots is assessed through the degree of shifting between the alignment patterns. The alignment marks are located in a pixel location of the active area and can measure the actual lithographic shot-to-shot misalignment in the active area, which can be used to make an accurate lithographic alignment. Having such alignment marks allows for a more accurate assessment of the in-line process manufacturing capability as well as a more rapid feedback of in-array drift, which would allow a faster and better control for yield loss.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 10, 2018
    Inventors: Ick-Hwan Ko, Karthik Nagarajan, Byung-Kyu Park, Shawn Michael O'Rourke
  • Publication number: 20180130790
    Abstract: An ESD circuit includes a first metal oxide channel device having a drain coupled to a first node, a source coupled to a second node, and a gate coupled to the first node; a second metal oxide channel device having a source coupled to the first node, a drain coupled to the second node, and a gate coupled to the second node; a first capacitor coupled between the first and second nodes proximate to the first metal oxide channel device; and a second capacitor coupled between the first and second nodes proximate to the second metal oxide channel device. The ESD circuit can further include a third capacitor coupled between the first and second nodes proximate to the first capacitor. The ESD circuit can further include a fourth capacitor coupled between the first and second nodes proximate to the second capacitor.
    Type: Application
    Filed: October 23, 2017
    Publication date: May 10, 2018
    Inventors: Byung-Kyu Park, Karthik Nagarajan, Jungwon Park, Yang-Wen Chen, Ick-Hwan Ko
  • Patent number: D816875
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 1, 2018
    Inventors: Byung-Ho Kong, Byung-Kyu Park
  • Patent number: D821942
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: July 3, 2018
    Inventors: Ji-Su Oh, Byung-Kyu Park
  • Patent number: D889319
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 7, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Byung Kyu Park
  • Patent number: D994558
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: August 8, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji-Su Oh, Byung-kyu Park
  • Patent number: D1008892
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: December 26, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji-Su Oh, Byung-Kyu Park
  • Patent number: D1008893
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: December 26, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji-Su Oh, Byung-Kyu Park
  • Patent number: D1055336
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: December 24, 2024
    Inventors: Oh Young Kwon, Byung Kyu Park, Hwan Wook Baek, Dae Woo Lee