Patents by Inventor Sik YOON

Sik YOON 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: 20250250481
    Abstract: A semiconductor nanoparticle, a production method, and an electroluminescent device including the same. The semiconductor nanoparticle includes zinc, sulfur, and selenium, and the semiconductor nanoparticle comprises a first semiconductor nanocrystal; and a semiconductor nanocrystal shell including zinc and sulfur disposed on the first semiconductor nanocrystal, and the semiconductor nanoparticle does not include cadmium; the semiconductor nanoparticle further includes a plurality of organic ligands (or a ligand system), that include a first organic ligand having a carboxylate moiety and a second organic ligand having a carboxylate moiety different from the first organic ligand. In a gas chromatography analysis, the semiconductor nanoparticle exhibits a first peak assigned to the first organic ligand and a second peak assigned to the second organic ligand, wherein an area percentage of the first peak relative to the second peak is greater than or equal to about 1% and less than or equal to about 300%.
    Type: Application
    Filed: January 31, 2025
    Publication date: August 7, 2025
    Inventors: Hyundong Ha, Kwang Hee KIM, Ji Hyun MIN, DAEUN YOON, Won Sik YOON, Jae Yong LEE, Hogeun Chang
  • Publication number: 20250231218
    Abstract: A test socket is capable of providing heat that is required to perform burn-in tests without any additional equipment, the test socket including: a connection portion 120; a frame 110 supporting the connection portion 120; and a heating wire 150 disposed on the frame 110.
    Type: Application
    Filed: October 17, 2022
    Publication date: July 17, 2025
    Applicant: ISC CO., LTD
    Inventors: Jong Woo OH, Hyun Sik YOON, Byeung Ju LEE
  • Publication number: 20250187412
    Abstract: A folding type cargo compartment cover unit having a sealing structure includes: a plurality of slats successively arranged on top of a vehicular cargo compartment along one direction of a vehicle; connectors, each being arranged between the adjacent slats; shafts, each hinge-connecting one of the adjacent slats and the connector to each other by passing through the one of the adjacent slats and through the connector; and weather strips, each being formed of flexible material and being provided on at least one of the slat or the connector, thereby sealing a gap between the slat and the connector.
    Type: Application
    Filed: June 26, 2024
    Publication date: June 12, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, AUTOMOBILE INDUSTRIAL ACE
    Inventors: Hyung-Sik Choi, Jae-Seung Lee, Si-Won Lee, Min-Su Kim, Woo-Sik Yoon
  • Publication number: 20250187410
    Abstract: A foldable loading box cover assembly for a vehicle includes a cover unit including a plurality of slats. The slats are foldable to cover an upper portion of a loading box of the vehicle. The assembly also includes a rail unit disposed in a unfolding direction of the cover unit at the upper portion of the loading box and configured to pop up for guiding an upper end portion and a lower end portion of the plurality of slats to slide. The foldable loading box cover assembly prevents the rail unit from being exposed to an upper portion of the loading box when the upper portion of the loading box is closed.
    Type: Application
    Filed: July 9, 2024
    Publication date: June 12, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Jae-Seung Lee, Hyung-Sik Choi, Gook-Hyun Jeon, Woo-Sik Yoon, Min-Su Kim
  • Publication number: 20250191519
    Abstract: A power management circuit includes a control signal reception circuit configured to receive a power control signal for controlling an operation of the power management circuit in correspondence to a driving mode of a panel, from a microcontroller which receives information on the driving mode of the panel; an output signal change circuit configured to change an output signal of the power management circuit in response to the power control signal; a control target selection circuit configured to select a control target circuit to which the output signal is to be transferred; and an output signal transmission circuit configured to transfer the output signal to the control target circuit.
    Type: Application
    Filed: February 19, 2025
    Publication date: June 12, 2025
    Applicant: LX SEMICON CO., LTD.
    Inventors: Seong Sik YOON, Moon Ho JANG, Dal Eun LEE
  • Publication number: 20250187411
    Abstract: A foldable loading box cover assembly for a vehicle has an articulated rail and includes a cover unit. The cover unit includes a plurality of slats where each slat has an upper end and a lower end alternately connected to adjacent slats when folded. The cover unit is folded or unfolded to uncover or cover a loading box of a vehicle. The cover assembly includes a main rail installed at an upper end of the loading box, disposed in a reward direction of the vehicle, and configured to guide the lower ends of the plurality of slats. The cover assembly includes an articulated rail installed on the main rail and configured to guide the upper ends of the plurality of slats. When the cover unit is folded, the articulated rail is separated from the main rail to guide the upper ends of the plurality of slats.
    Type: Application
    Filed: November 21, 2024
    Publication date: June 12, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Jae-Seung Lee, Hyung-Sik Choi, Gook-Hyun Jeon, Woo-Sik Yoon, Min-Su Kim
  • Patent number: 12327513
    Abstract: A display device includes a display panel including a pixel, a data driver which provides a data voltage to the pixel, an artificial intelligence model which receives luminance efficiency for each of colors in each of panel blocks of the display panel and predicts a power current applied to the display panel, and a timing controller which controls the data driver and provides the luminance efficiency for each of the colors to the artificial intelligence model.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: June 10, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyun-Sik Yoon
  • Publication number: 20250183431
    Abstract: A hybrid battery cell includes a first independent drive cell, a second independent drive cell, and a cell housing. The first independent drive cell has a first positive electrode tab and a first negative electrode tab. The second independent drive cell is independently driven from the first independent drive cell, and includes a second positive electrode tab and a second negative electrode. The cell housing exposes the first and second positive electrode tabs and the first and second negative electrode tabs, respectively, to the outside, and surrounds the first independent drive cell and the second independent drive cell.
    Type: Application
    Filed: April 13, 2023
    Publication date: June 5, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Dong Sik Yoon
  • Patent number: 12319373
    Abstract: A vehicle body assembly system each forming a pre-buck section and a main-buck section set along a transport path of the floor assembly according to an exemplary embodiment of the present disclosure includes a pre-buck unit configured in the pre-buck section to regulate the seal side and the front and rear sides of side assemblies that are different for each vehicle type, and to assemble the side assembly and the floor assembly, and a main-buck unit configured in the main-buck section to regulates the roof portion and the quarter portion of the side assembly assembled to the floor assembly in the pre-buck section, assemble the roof portion, cowl, roof rail and package tray and assemble the quarter portion and the floor assembly.
    Type: Grant
    Filed: June 11, 2024
    Date of Patent: June 3, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Yongcheol Jeong, Sekyu Kang, Eun Sik Yoon, Seon Woo Kweon, Haejung Kang, Suwhan Kim, Jung Hoo Lim, Keonyong Kim
  • Publication number: 20250172025
    Abstract: A vehicle door hinge apparatus including a door link having one end pivotably and slidably connected to a vehicle body side and the other end hinged to a door side, a vehicle body link having one end pivotably and slidably connected to the door side and the other end hinged to the vehicle body side, a door link guide provided on the vehicle body side and configured to guide sliding of the one end of the door link, and a vehicle body link guide provided on the door side and configured to guide sliding of the one end of the vehicle body link. The door link and the vehicle body link intersect each other, an intersection point of the two links is hinged, and the door link and the vehicle body link perform, when the door is opened, a scissors motion around the hinged intersection point.
    Type: Application
    Filed: May 1, 2024
    Publication date: May 29, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Doo Young Jung, Ki Hyun Choi, Hyung Sik Choi, Sang Heon Lee, Woo Sik Yoon, Min Su Kim
  • Patent number: 12300170
    Abstract: A display device includes a display panel including a pixel, a temperature sensor which senses a temperature of the display panel and outputs the temperature of the display panel as a sensing temperature, a first compensation part which receives a gate-source voltage sensed in the pixel as a sensing voltage and compensates for the sensing voltage by a change amount of the gate-source voltage corresponding to a difference value between a reference temperature and the sensing temperature, and a second compensation part which compensates for data to be applied to the pixel by comparing a compensated sensing voltage with an initial gate-source voltage.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: May 13, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seonghwan Choi, Hyun-Sik Yoon, Moonju Kim, Jiyoung Eom, Yong-Ju Jeong
  • Patent number: 12272794
    Abstract: A method of detecting a lamination defect of an electrode assembly in the initial stage, including: forming an insulating member having a predetermined width and a predetermined height in an overhang region of one end or two ends of one surface of a negative electrode; manufacturing an electrode assembly by sequentially laminating a separator and a positive electrode on one surface of the negative electrode; and determining whether there is a lamination defect in the electrode assembly by measuring a thickness of the electrode assembly. Also provided are an electrode assembly including an insulating member, and a battery cell including the electrode assembly.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: April 8, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Suk Woo Lee, Su Hyun Yun, Dong Sik Yoon
  • Patent number: 12266292
    Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: April 1, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Jin Seo, Tae Wan Kim, Hwa An Sung, Hyun Sik Yoon, Jeong Ah Lee, Dae Ho Hwang
  • Patent number: 12266315
    Abstract: A display device includes a driving control circuit that receives an input image signal and outputs an output image signal, a data driving circuit that outputs a data signal corresponding to the output image signal, and a display panel including a plurality of pixels to display an image corresponding to the data signal. The driving control circuit determines an amount of time the input image signal is maintained as a still image, determines a color coordinate gain based on the amount of time and outputs the output image signal based on the color coordinate gain.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: April 1, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Sung, Jongwoon Kim, Kihong Song, Hyun-Sik Yoon, Yeseul Lee
  • Patent number: 12259772
    Abstract: A power management circuit includes a control signal reception circuit configured to receive a power control signal for controlling an operation of the power management circuit in correspondence to a driving mode of a panel, from a microcontroller which receives information on the driving mode of the panel; an output signal change circuit configured to change an output signal of the power management circuit in response to the power control signal; a control target selection circuit configured to select a control target circuit to which the output signal is to be transferred; and an output signal transmission circuit configured to transfer the output signal to the control target circuit.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: March 25, 2025
    Assignee: LX SEMICON CO., LTD.
    Inventors: Seong Sik Yoon, Moon Ho Jang, Dal Eun Lee
  • Patent number: 12245389
    Abstract: A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.
    Type: Grant
    Filed: January 19, 2024
    Date of Patent: March 4, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Yong Choi, Young Chul Kim, Ji Su Kim, Hun Sung Kim, Sung Yong Park, Jin Soo Shin, Dae Sik Yoon, Yong Yeon Hwang
  • Patent number: 12239007
    Abstract: The present invention relates to a polymer, an organic solar cell comprising the polymer, and a perovskite solar cell comprising the polymer. The polymer according to the present invention has excellent absorption ability for visible light and an energy level suitable for the use as an electron donor compound in a photo-active layer of the organic solar cell, thereby increasing the light conversion efficiency of the organic solar cell. In addition, the polymer according to the present invention has high hole mobility, and is used as a compound for a hole transport layer, and thus can improve efficiency and service life of the perovskite solar cell without an additive.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: February 25, 2025
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Soo Young Park, Won Sik Yoon, Dong Won Kim, Jun Mo Park
  • Patent number: 12225747
    Abstract: A quantum dot device including an anode and a cathode, a light emitting layer disposed between the anode and the cathode, the light emitting layer comprising quantum dots, a first hole auxiliary layer disposed on the anode, the first hole auxiliary layer including poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate or a derivative thereof (PEDOT:PSS), a second hole auxiliary layer disposed on the first hole auxiliary layer and including a hole transport material different from the PEDOT:PSS, wherein the light emitting layer is disposed on the second hole auxiliary layer, wherein the first hole auxiliary layer has a first surface facing the anode and a second surface facing the second hole auxiliary layer, and the second surface includes a surface modification region including a surface modification material having a carboxylic acid group, a phosphonic acid group, a sulfonic acid group, or a salt thereof. An electronic device that includes the quantum dot device.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: February 11, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Sik Yoon, Ju Hyun Kim, Ha Il Kwon, Kwang Hee Kim, Taehyung Kim, Su Jin Park, Dae Young Chung
  • Publication number: 20250040296
    Abstract: A semiconductor nanoparticle, a method of preparing the semiconductor nanoparticle, and an electroluminescent device including the semiconductor nanoparticle. The method of preparing the semiconductor nanoparticle includes contacting a zinc precursor and a sulfur precursor in the presence of a first particle at a predetermined temperature to form a semiconductor nanocrystal layer containing zinc sulfide on the first particle, wherein the first particle includes a Group II-VI compound including zinc, selenium, and, optionally, tellurium, or the first particle includes a Group III-V compound including indium and phosphorus. The predetermined temperature includes (e.g., is) a temperature (e.g., a reaction temperature) of greater than 300° C. and less than or equal to about 380° C., and the sulfur precursor includes a thiol compound of C3 (e.g. C9) to C50 or a combination thereof.
    Type: Application
    Filed: July 25, 2024
    Publication date: January 30, 2025
    Inventors: Ji Hyun MIN, DAEUN YOON, Won Sik YOON, Jae Yong LEE, Hogeun CHANG, Hyundong HA, Yong Seok HAN
  • Patent number: 12213333
    Abstract: Light emitting device, method of manufacturing the light emitting device, and display device including the light emitting device are disclosed. The light emitting device includes a first electrode and a second electrode each having a surface opposite the other, a light emitting layer including quantum dots that is disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles including an anion of an organic acid bound to a surface of the metal oxide nanoparticle.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: January 28, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hongkyu Seo, Kwanghee Kim, Eun Joo Jang, Won Sik Yoon, Tae Hyung Kim, Tae Ho Kim