Patents by Inventor Sung Wook Cho

Sung Wook Cho 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: 12232416
    Abstract: An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes a first compound, a second compound, a third compound, and a fourth compound, and the first compound to the fourth compound satisfy Equations 1 to 8: E1,LUMO?E2,LUMO+0.15 electron volts (eV)??Equation 1 E1,HOMO?E2,HOMO+0.15 eV??Equation 2 E1,T1?E4,T1??Equation 3 E2,T1?E4,T1??Equation 4 E3,T1?E4,T1??Equation 5 E3,LUMO?E2,LUMO+0.1 eV??Equation 6 ?5.6 eV?E3,HOMO??Equation 7 Egap1?Egap3.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: February 18, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hwan-Hee Cho, Myeong-Suk Kim, Sung-Wook Kim, Se-Hun Kim, Jin-Soo Hwang
  • Patent number: 12218410
    Abstract: Disclosed is a portable communication device including a housing; a first PCB; a wireless communication circuitry disposed on the first PCB; and a second PCB having a plurality of layers including a first PCB portion; a second PCB portion extended from the first PCB portion and more flexible than the first PCB portion; a third PCB portion extended from the second PCB portion and less flexible than the second PCB portion; a fourth PCB portion extended from the third PCB portion and more flexible than the third PCB portion; and a plurality of lines formed at a same layer of the plurality of layers as extended from the second PCB portion through the third PCB portion to the fourth PCB portion, the plurality of lines including a first ground line and a second ground line, and a first signal line between the first and second ground lines.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: February 4, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han-Min Cho, Chan-Gi Park, Yeon-Sang Yun, Tae-Wook Ham, Hei-Seong Kwak, Byoung-Il Son, Sung-Chul Park
  • Patent number: 12202467
    Abstract: Provided are a hybrid electric vehicle and driving mode control method and apparatus for the same. An engine start request is generated by a heating controller of the vehicle. A second time is determined on basis of a first time between the cancellation of a prevent engine start request and the generation of the engine start request. The engine is controlled so that the engine is further maintained in a started state during the second time after the engine start request is cancelled.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: January 21, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jin Kyeom Cho, Sung Deok Kim, Ku Young Kang, Seong Wook Moon, Sung Chan Na
  • Patent number: 12166055
    Abstract: An image sensing device for preventing a crosstalk path is disclosed. The image sensing device includes a substrate including a plurality of photoelectric conversion elements, each of which generates and accumulates photocharges corresponding to incident light and a plurality of lenses disposed over the substrate, and arranged to receive the incident light and to direct received incident light to the plurality of photoelectric conversion elements, wherein the plurality of lenses includes a first lens and a second lens that are arranged to contact each other and have different refractive indexes from each other.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: December 10, 2024
    Assignee: SK HYNIX INC.
    Inventor: Sung Wook Cho
  • Publication number: 20240367994
    Abstract: The present disclosure provides a method for partially reducing vanadium pentoxide (V2O5) using an ammonia solution, wherein ammonia is used to convert vanadium pentoxide (V2O5) powder to ammonia vanadate (NH4VO3), which is an intermediate material, after which the ammonia vanadate is heated under normal or reduced pressure in a nitrogen or argon atmosphere and then maintained for a certain period of time to partially reduce the vanadium pentoxide and thereby produce vanadium dioxide (VO2) powder, and vanadium dioxide (VO2) powder produced thereby.
    Type: Application
    Filed: July 4, 2022
    Publication date: November 7, 2024
    Inventors: Byung-Su KIM, Taegong RYU, Han Kwon CHANG, Ji-Hyuk CHOI, Chang-Youl SUH, Jeonghyun YOO, Sung-Wook CHO, Tae Jun PARK
  • Publication number: 20240323527
    Abstract: An image sensing device includes: a plurality of photoelectric conversion elements included in a unit pixel and located in a substrate layer; an isolation structure configured to isolate the plurality of photoelectric conversion elements from photoelectric conversion elements included in another unit pixel; a first anti-reflection layer configured to overlap the plurality of photoelectric conversion elements and disposed to be in contact with one surface of the substrate layer; a light guide disposed between the plurality of photoelectric conversion elements and disposed to be in contact with one surface of the substrate layer and the first anti-reflection layer; a grid layer configured to overlap the isolation structure; and a second anti-reflection layer disposed to be in contact with the first anti-reflection layer, the light guide, and the grid layer, wherein the light guide includes a material having a refractive index smaller than a refractive index of the first anti-reflection layer.
    Type: Application
    Filed: January 9, 2024
    Publication date: September 26, 2024
    Inventor: Sung Wook CHO
  • Publication number: 20240264038
    Abstract: Probe cards that can replace lens units are disclosed. In some implementations, a probe card may include a lens unit through which light irradiated from a light source unit; a jig into which the lens unit is inserted inside, and a holder unit for closely supporting the lens unit.
    Type: Application
    Filed: July 21, 2023
    Publication date: August 8, 2024
    Inventors: Sung Wook CHO, Yeon Su YEO
  • Publication number: 20240186342
    Abstract: An image sensing device includes a pixel region provided in a first portion of a semiconductor substrate such that photoelectric conversion elements for converting incident light into an electrical signal are disposed in the first portion of the semiconductor substrate, a dummy region located outside the pixel region to surround the pixel region and provided in a second portion of the semiconductor substrate without including a photoelectric conversion element, first microlenses disposed over the first portion of the semiconductor substrate and in the pixel region, the first microlenses configured to converge the incident light onto corresponding photoelectric conversion elements, second microlenses disposed over the second portion of the semiconductor substrate and in the dummy region, the second microlenses isolated from the first microlenses, and at least one alignment pattern disposed in the second portion of semiconductor substrate so as to be aligned with the second microlenses.
    Type: Application
    Filed: July 19, 2023
    Publication date: June 6, 2024
    Inventor: Sung Wook CHO
  • Patent number: 11923389
    Abstract: An image sensing device includes photoelectric conversion elements structured to convert light into electrical signals, and a color filter layer structured to filter incident light towards the photoelectric conversion elements depending on a wavelength range of the incident light corresponding to colors of the incident light to allow the filtered light to be detected by the photoelectric conversion elements corresponding to the colors of the incident light. The color filter layer includes a plurality of first color filters as part of the different filters and structured to allow light at a wavelength range corresponding to a first color and arranged adjacent to each other. A distance between at least one of the first color filters and a corresponding photoelectric conversion element formed below the at least one of the first color filters is different from a distance between the remaining first color filters and corresponding photoelectric conversion elements, respectively.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: March 5, 2024
    Assignee: SK HYNIX INC.
    Inventor: Sung Wook Cho
  • Patent number: 11728359
    Abstract: Disclosed is an image sensor having a plurality of groups of pixels, each group of pixels including: first to third image detection color filter sets and a phase difference detection color filter set, which are arranged in a matrix with rows and columns. The phase difference detection color filter set comprises first to fourth phase difference detection color filter pairs arranged in a matrix with rows and columns. The first to fourth phase difference detection color filter pairs comprise first to fourth left phase difference detection color filters positioned on the left of each of the first to fourth phase difference detection color filter pairs and first to fourth right phase difference detection color filters positioned on the right of each of the first to fourth phase difference detection color filter pairs, respectively.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: August 15, 2023
    Assignees: SK hynix Inc., Dong-A University Research Foundation for Industry-Academy Cooperation
    Inventors: Kyoung-In Lee, Min-Su Cho, Sung-Wook Cho, Yun-Kyung Kim
  • Publication number: 20230255110
    Abstract: The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency, lifespan characteristic, and/or power efficiency can be provided.
    Type: Application
    Filed: March 30, 2023
    Publication date: August 10, 2023
    Inventors: So-Young JUNG, Su-Hyun LEE, Sung-Wook CHO
  • Patent number: 11700466
    Abstract: An image sensing device includes a pixel array including image sensing pixels, phase detection pixel pairs disposed between the image sensing pixels, photoelectric conversion regions corresponding to the image sensing pixels and the phase detection pixels, device isolation structures isolating the photoelectric conversion regions, color filters corresponding to the image sensing pixels and the phase detection pixel pairs, a first grid structure disposed between a color filter of a first image sensing pixel and a color filter of an adjacent first phase detection pixel pair and shifted by a first distance from a first device isolation structure disposed between the first image sensing pixel and the first phase detection pixel pair, and a second grid structure disposed in color filters of the first phase detection pixel pair and shifted by a second distance from a second device isolation structure disposed between the first phase detection pixel pairs.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: July 11, 2023
    Assignee: SK hynix Inc.
    Inventor: Sung Wook Cho
  • Patent number: 11658195
    Abstract: An image sensor is disclosed. The image sensor includes a pixel region and a shield region. The pixel region includes a first microlens array that includes microlenses arranged in a first direction and a second direction perpendicular to the first direction. The shield region surrounds the pixel region and includes a second microlens array formed in a shape that is obtained when the first microlens array is rotated by a predetermined angle with respect to the first direction.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 23, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Wook Cho, Han Jun Kim, Min Su Cho
  • Publication number: 20230042186
    Abstract: An image sensing device includes a pixel array configured to include a plurality of pixel groups arranged in a matrix structure. Each of the pixel groups includes an optical filter configured to selectively pass incident light, a plurality of photoelectric conversion regions disposed below the optical filter and arranged in a matrix structure, a first isolation structure disposed between the photoelectric conversion regions and other pixel groups, a plurality of second isolation structures disposed between two adjacent photoelectric conversion regions from among the photoelectric conversion regions, and a third isolation structure disposed between the second isolation structures, and configured to interconnect the second isolation structures. The third isolation structure includes a cavity region formed adjacent to contact any one of the photoelectric conversion regions.
    Type: Application
    Filed: July 7, 2022
    Publication date: February 9, 2023
    Inventor: Sung Wook CHO
  • Publication number: 20230016604
    Abstract: An image sensing device includes a pixel array including image sensing pixels, phase detection pixel pairs disposed between the image sensing pixels, photoelectric conversion regions corresponding to the image sensing pixels and the phase detection pixels, device isolation structures isolating the photoelectric conversion regions, color filters corresponding to the image sensing pixels and the phase detection pixel pairs, a first grid structure disposed between a color filter of a first image sensing pixel and a color filter of an adjacent first phase detection pixel pair and shifted by a first distance from a first device isolation structure disposed between the first image sensing pixel and the first phase detection pixel pair, and a second grid structure disposed in color filters of the first phase detection pixel pair and shifted by a second distance from a second device isolation structure disposed between the first phase detection pixel pairs.
    Type: Application
    Filed: February 23, 2022
    Publication date: January 19, 2023
    Inventor: Sung Wook CHO
  • Publication number: 20220293659
    Abstract: An image sensing device for preventing a crosstalk path is disclosed. The image sensing device includes a substrate including a plurality of photoelectric conversion elements, each of which generates and accumulates photocharges corresponding to incident light and a plurality of lenses disposed over the substrate, and arranged to receive the incident light and to direct received incident light to the plurality of photoelectric conversion elements, wherein the plurality of lenses includes a first lens and a second lens that are arranged to contact each other and have different refractive indexes from each other.
    Type: Application
    Filed: November 9, 2021
    Publication date: September 15, 2022
    Inventor: Sung Wook CHO
  • Publication number: 20220077211
    Abstract: An image sensing device includes photoelectric conversion elements structured to convert light into electrical signals, and a color filter layer structured to filter incident light towards the photoelectric conversion elements depending on a wavelength range of the incident light corresponding to colors of the incident light to allow the filtered light to be detected by the photoelectric conversion elements corresponding to the colors of the incident light. The color filter layer includes a plurality of first color filters as part of the different filters and structured to allow light at a wavelength range corresponding to a first color and arranged adjacent to each other. A distance between at least one of the first color filters and a corresponding photoelectric conversion element formed below the at least one of the first color filters is different from a distance between the remaining first color filters and corresponding photoelectric conversion elements, respectively.
    Type: Application
    Filed: April 8, 2021
    Publication date: March 10, 2022
    Inventor: Sung Wook CHO
  • Publication number: 20220028910
    Abstract: Disclosed is an image sensor having a plurality of groups of pixels, each group of pixels including: first to third image detection color filter sets and a phase difference detection color filter set, which are arranged in a matrix with rows and columns. The phase difference detection color filter set comprises first to fourth phase difference detection color filter pairs arranged in a matrix with rows and columns. The first to fourth phase difference detection color filter pairs comprise first to fourth left phase difference detection color filters positioned on the left of each of the first to fourth phase difference detection color filter pairs and first to fourth right phase difference detection color filters positioned on the right of each of the first to fourth phase difference detection color filter pairs, respectively.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Kyoung-In LEE, Min-Su CHO, Sung-Wook CHO, Yun-Kyung KIM
  • Patent number: 11233078
    Abstract: An image sensing device in which overlay pixels are formed in a dummy pixel region is disclosed. The image sensing device includes a first dummy pixel region including a first micro-lens, a second dummy pixel region surrounding the first dummy pixel region and formed without micro-lens, and a third dummy pixel region surrounding the second dummy pixel region and including a plurality of second micro-lenses. A center point of the first micro-lens is aligned with a center point of the first photoelectric conversion element, and a center point of the second micro-lenses is shifted in a certain direction from a center point of the third photoelectric conversion elements.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 25, 2022
    Assignee: SK hynix Inc.
    Inventor: Sung Wook Cho
  • Patent number: RE48998
    Abstract: Disclosed is a system and method for allowing analysis results of scan data to have supplemental geometry and various measurements generated from the supplemental geometry or mutual common relations between geometric tolerances, and when the scan data changes, the analysis results according to the related data are recalculated in real time in order to simplify the repetitive inspection process according to the scan data changes.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: March 29, 2022
    Assignee: 3D Systems, Inc.
    Inventors: Seock Hoon Bae, Dong Hoon Lee, Seung Yob Kim, Sung Wook Cho