Patents by Inventor Yun Choi

Yun 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: 20250261486
    Abstract: There is provided a display device comprising a substrate, a pixel electrode on the substrate, a light emitting element on the pixel electrode, and extending in a thickness direction of the substrate, a common electrode on the light emitting element, a wavelength conversion layer on the common electrode, including wavelength conversion particles for converting first light emitted from the light emitting element into second light, and a selective transmission film on an upper surface and on sides of the wavelength conversion layer, and configured to reflect the first light, and to transmit the second light.
    Type: Application
    Filed: April 7, 2025
    Publication date: August 14, 2025
    Inventors: Jin Woo CHOI, Sung Kook PARK, Dae Ho SONG, Tae Hee LEE, Hae Yun CHOI
  • Publication number: 20250254857
    Abstract: A semiconductor device includes a plurality of active regions disposed at a substrate, a device isolation layer disposed at the substrate and surrounding each of the plurality of active regions, a supporter pattern surrounded by the device isolation layer and disposed in a space between two active regions of the plurality of active regions, a cell gate structure intersecting the plurality of active regions, the cell gate structure including a gate dielectric layer, a gate electrode on the gate dielectric layer, and a gate capping layer on the gate electrode, and a bit line structure intersecting one of the plurality of active regions and the cell gate structure. A lower surface of the supporter pattern is in contact with the device isolation layer, and an upper surface of the supporter pattern is in contact with the gate electrode.
    Type: Application
    Filed: October 1, 2024
    Publication date: August 7, 2025
    Inventors: Heejae Chae, Yongkwan Kim, Huijung Kim, Hyunjin Lee, Yun Choi
  • Patent number: 12371720
    Abstract: Provided is a method for preparing a block copolymer including a step of subjecting a lactide monomer to ring-opening polymerization in the presence of a biosynthesized poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate) block copolymer.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: July 29, 2025
    Assignee: LG CHEM, LTD.
    Inventors: Jung Yun Choi, Chul Woong Kim, Sungwoon Heo, Donggyun Kang, Jae Hyung Kim, Suhyun Cho
  • Patent number: 12356769
    Abstract: A display device includes a substrate, a partition wall on the substrate, a light-emitting element in an emission area partitioned by the partition wall on the substrate, and extending in a thickness direction of the substrate, a wavelength conversion layer over the light-emitting element in the emission area, and including a base resin, and a scatterer dispersed in the base resin and that converts a wavelength of light emitted from the light-emitting element, a light-blocking member on the partition wall, and at least one optical pattern on the wavelength conversion layer in the emission area, and having an upwardly protruding shape.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: July 8, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae Yun Choi, Jin Taek Park, Ki Seong Seo, Dae Ho Song, So Young Yeo, So Yeon Yoon, Byeong Hwa Choi
  • Patent number: 12356770
    Abstract: A display device includes a substrate; a partition wall on the substrate; a light-emitting element located in an emission area partitioned by the partition wall on the substrate and extended in a thickness direction of the substrate; a wavelength conversion layer over the light-emitting element in the emission area, and including a base resin and wavelength conversion particles dispersed in the base resin and configured to convert a wavelength of light emitted from the light-emitting element; and an optical member on the wavelength conversion layer and the partition wall and configured to adjust a path of light output from the wavelength conversion layer, and the optical member includes an optical layer and a first protruding pattern protruding from the optical layer toward the wavelength conversion layer.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: July 8, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hae Yun Choi, Tae Hee Lee, Hyung Il Jeon, Joo Woan Cho, Dae Ho Song, Byung Choon Yang
  • Patent number: 12334478
    Abstract: A light emitting device may include: a substrate including a plurality of unit light emitting regions; at least one first light emitting element having a first end portion and a second end portion in a first direction; at least one second light emitting element having a first end portion and a second end portion in a second direction intersecting the first direction; a first electrode connected to any one of the first and second end portions of each of the first and second light emitting elements and a second electrode connected to the other of the first and second end portions of each of the first and second light emitting elements; a first alignment line extending along the second direction on the substrate, the first alignment line being connected to the first electrode; and a second alignment line connected to the second electrode.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 17, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Ik Lim, Eun A Yang, Hae Yun Choi
  • Publication number: 20250121744
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, the rear link being capable of rotating in an unlocking direction about the second hinge shaft, and an unlocking device configured to operate in conjunction with a rotational operation of the rear link and implement an unlocked state by pressing a locking pin by means of operations of a plurality of links.
    Type: Application
    Filed: September 30, 2024
    Publication date: April 17, 2025
    Inventors: Cheolhwan YOON, HWA YOUNG MUN, GWON HWA BOK, SEONG JUN SHIN, HAN YUN CHOI, Junsik HWANG
  • Publication number: 20250114746
    Abstract: The present disclosure relates to systems and methods for electrically conductive membrane separation from a mixture solution via membrane nanofiltration, electro-filtration, or electro-extraction by: generating an electric field at the membrane filter, holding the membrane filter at a constant electric potential, or driving a constant current through the membrane filter; feeding a mixture solution through the membrane nanofiltration system; and separating a component from the mixture solution into a permeate solution.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Inventors: Brendan D. Smith, Jatin Patil, Daniel Bregante, Ahmed Helal, Hee Yun Choi Kim, Morgan Baima, Jeffrey C. Grossman, Noah Letwat
  • Publication number: 20250116437
    Abstract: A refrigerator for drinks is provided. The refrigerator may have an open hole that is open upward, so a drink container may be inserted in an erect state in a cabinet through the open hole. An insertion guide connected to the open hole may be disposed in the cabinet and the width of the insertion guide may change in a height direction. Accordingly, a drink container may be guided by the insertion guide when being inserted into or taken out of the refrigerator for drinks.
    Type: Application
    Filed: December 18, 2024
    Publication date: April 10, 2025
    Applicant: LG ELECTRONICS INC.
    Inventors: Dae Woong KIM, Hee Su YANG, Min Kyu OH, Su Young LEE, Ja Yoen KIM, Hwa Yun CHOI
  • Patent number: 12272768
    Abstract: There is provided a display device comprising a substrate, a pixel electrode on the substrate, a light emitting element on the pixel electrode, and extending in a thickness direction of the substrate, a common electrode on the light emitting element, a wavelength conversion layer on the common electrode, including wavelength conversion particles for converting first light emitted from the light emitting element into second light, and a selective transmission film on an upper surface and on sides of the wavelength conversion layer, and configured to reflect the first light, and to transmit the second light.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: April 8, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Woo Choi, Sung Kook Park, Dae Ho Song, Tae Hee Lee, Hae Yun Choi
  • Patent number: 12274027
    Abstract: A heat sink according to an example embodiment comprises: an inlet part through which a refrigerant is introduced; an outlet part through which the refrigerant received from the inlet part is discharged; and a plurality of flow channels disposed between the inlet part and the outlet part, configured to allow the refrigerant to flow, wherein the plurality of flow channels is arranged to have a spirally bent shape, and parts of the plurality of flow channels communicate with each other to allow the refrigerant to circulate between the flow channels.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: April 8, 2025
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Young Joo Kim, Yong Soo Kim, Seung Boong Jeong, Jong Yun Choi
  • Patent number: 12261246
    Abstract: A display device comprises a first electrode and a second electrode on a substrate, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first insulating layer each having a first end on the first electrode and a second end on the second electrode, a first connection electrode disposed on the first electrode and electrically contacting the first end of each of the light emitting elements, a second connection electrode disposed on the second electrode and electrically contacting the second end of each of the light emitting elements, a second insulating layer on the light emitting elements, the first connection electrode and the second connection electrode, and a third connection electrode disposed on the second insulating layer and electrically contacting the light emitting elements through an opening formed in the second insulating layer that partially exposes the light emitting elements.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: March 25, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Deok Im, Jong Hyuk Kang, Jung Hyun Ahn, Won Ho Lee, Hae Yun Choi
  • Publication number: 20250091488
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, the rear link being capable of rotating in an unlocking direction about the second hinge shaft, and an unlocking device configured such that at least one bracket, which operates in conjunction with a rotational operation of the rear link, presses a locking pin in a state in which the bracket is elastically supported by an elastic member, such that an unlocked state is implemented.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 20, 2025
    Inventors: Han Yun CHOI, Hwa Young MUN, Gwon Hwa BOK, Seong Jun SHIN, Cheolhwan YOON, Junsik HWANG
  • Patent number: 12256584
    Abstract: A display device includes a pixel, the pixel includes at least one light emitting element including a first end and a second end; a first electrode overlapping the at least one light emitting element and electrically connected to the first end of the at least one light emitting element; and a second electrode overlapping the at least one light emitting element and the first electrode and electrically connected to the second end of the at least one light emitting element, and the first electrode includes area electrodes divided according to a number and a position of area electrodes overlapping the at least one light emitting element.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: March 18, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hae Yun Choi, Sung Kook Park, Sung Eun Baek, Jin Woo Choi
  • Publication number: 20250083577
    Abstract: A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, and a pressing bracket configured to be pressed by the rear link.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 13, 2025
    Inventors: Gwon Hwa BOK, Hwa Young MUN, Seong Jun SHIN, Cheolhwan YOON, Han Yun CHOI, Junsik HWANG
  • Patent number: 12244926
    Abstract: There is provided an overlay measurement device controlling a focus movement, which includes: a lighting part being configured to orient lighting toward an overlay measurement target; a collection part comprising an objective lens and a detector for obtaining one or more of images of each focus in the overlay measurement target; a lens focus actuator moving the objective lens to adjust a distance between the objective lens and a wafer; and a processor controlling an operation of the lens focus actuator. The processor obtains a focus graph respectively in relation to two layers from one or more of the images of each focus, and the processor identifies a reference focus in relation to the obtained focus graphs to move the objective lens.
    Type: Grant
    Filed: April 5, 2024
    Date of Patent: March 4, 2025
    Assignee: AUROS TECHNOLOGY, INC.
    Inventors: Seong-Yun Choi, Hyo-Sik Ham
  • Patent number: 12243953
    Abstract: An apparatus for manufacturing a light emitting display device includes a stage, and at least one electric-field application module disposed on at least one side of the stage. The apparatus further includes at least one of: at least one printing head disposed above the stage, and a heating element disposed adjacent the stage. The at least one electric-field application module includes a probe head having at least one probe pin, and a driver connected to the probe head to move the probe head.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: March 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Hyuk Kang, Won Ho Lee, Hyun Deok Im, Young Hoi Kim, Jin Young Kim, Hyun Min Cho, Hae Yun Choi
  • Publication number: 20250071969
    Abstract: A semiconductor device may include a plurality of active patterns disposed on a substrate, a gate structure extending in a first direction, a bit line structure extending in a second direction, and a plurality of capacitors electrically connected to the plurality of active patterns, respectively, the plurality of active patterns having a shape extending in a third direction oblique to the first and second directions, the gate structure passing through centers of the plurality of active patterns, the bit line structure connected to first end portions of the plurality of active patterns, the plurality of capacitors connected to second end portions of the plurality of active patterns, respectively, the first end portion and the second end portion positioned at opposite sides with respect to the gate structure, and the first end portion and the second end portion having point-symmetrical shapes with respect to a center of the active pattern.
    Type: Application
    Filed: April 1, 2024
    Publication date: February 27, 2025
    Inventors: Yun Choi, Seungmuk Kim, Inwoo Kim, Sohyun Park, Hanseong Shin, Kiseok Lee, Hyunjin Lee, Hosang Lee, Hongjun Lee, Heejae Chae
  • Patent number: 12237364
    Abstract: A display device includes: a first sub-pixel having a first emission area and a first sub-area adjacent to each other in a first direction; and a bank extending around a portion of the first emission area and the first sub-area. The bank includes: a first wall extending around the first sub-area; and a second wall adjacent to the first emission area in a second direction crossing the first direction. The second wall and the first wall are spaced apart from each other in the first direction.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: February 25, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Deok Im, Buem Joon Kim, Won Ho Lee, Hae Yun Choi
  • Publication number: 20250056935
    Abstract: According to some embodiments of the present disclosure, there is provided a display device including a substrate, a light emitting element on the substrate and emitting first light, a wavelength conversion layer on the light emitting element and including wavelength conversion particles for converting the first light into second light, a first selective transmission film between the light emitting element and the wavelength conversion layer and reflecting the first light and the second light, which are incident from the wavelength conversion layer, and a second selective transmission film on the wavelength conversion layer and reflecting the first light incident from the wavelength conversion layer and transmitting the second light.
    Type: Application
    Filed: August 20, 2024
    Publication date: February 13, 2025
    Inventors: Joo Woan CHO, Jin Woo CHOI, Byung Choon YANG, Tae Hee LEE, Hae Yun CHOI