Patents by Inventor Won Seok Lee

Won Seok Lee 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: 20220376185
    Abstract: Provided are a compound of Formula 7 improving the luminous efficiency, stability and life span of an organic electronic element employing the compound, the organic electronic element, and an electronic device thereof.
    Type: Application
    Filed: June 28, 2022
    Publication date: November 24, 2022
    Applicant: DUK SAN NEOLUX CO., LTD.
    Inventors: Won Sam KIM, Hyun Ji OH, Dae Hwan OH, Sun Hee LEE, Soung Yun MUN, Jeong Seok KIM
  • Publication number: 20220376755
    Abstract: The present inventive concept relates to a multi-antenna channel estimation apparatus and method for performing beamforming in a communication system in which only single channel estimation is possible, and relates to a channel estimation apparatus and method for beamforming in which the transmitter generates pilot signals based on the Zadoff-chu sequence and transmits the generated pilot signals to the receiver, the receiver estimates a channel based on the pilot signal, and feeds back information for beamforming to the transmitter based on the estimated channel information, and it is configured to enable beamforming by converting and setting the signal phase for each antenna according to the feedback received from the transmitter.
    Type: Application
    Filed: October 13, 2021
    Publication date: November 24, 2022
    Inventors: Hyoung Kyu SONG, Won Seok LEE, Ji Sung JUNG
  • Publication number: 20220368385
    Abstract: The present inventive concept relates to a method for designing an optimal analog precoder for improving frequency spectrum efficiency in a millimeter wave-based multi-user massive MIMO-based hybrid beamforming system and a hybrid beamforming system applying the same, and more specifically, to a method for designing an optimal analog precoder using an approximation technique and an iterative optimization algorithm, and a hybrid beamforming system to which the same is applied.
    Type: Application
    Filed: October 13, 2021
    Publication date: November 17, 2022
    Inventors: Hyoung Kyu SONG, Ji Sung JUNG, Won Seok LEE, Yeong Rong LEE, Ji Hye OH
  • Patent number: 11492261
    Abstract: The present invention relates to a method using chemical reaction transparency of graphene, and more specifically to a method capable of forming a desired material by a catalytic reaction on a graphene surface using the graphene which inhibits oxygen diffusion without blocking electron delivery, and an applied method thereof.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 8, 2022
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Won Jin Choi, Jeong-O Lee, Hyunju Chang, Ki-jeong Kong, Ki-Seok An
  • Publication number: 20220344702
    Abstract: A multi-phase electrolyte film includes a first phase comprising a metal oxide, wherein the metal oxide is amorphous, crystalline, or a glass; and a second phase comprising a lithium salt having a decomposition temperature in air of greater than 200° C. or a lithium halide. The first phase is dispersed in the second phase and has an average particle size of 5 to 200 nanometers. Methods for the manufacture of the electrolyte film are also disclosed.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 27, 2022
    Inventors: Yuntong Zhu, Jesse Hinricher, Zachary Hood, Lincoln Miara, Heung Chan Lee, Won Seok Chang, Jennifer Rupp
  • Publication number: 20220340701
    Abstract: Provided is a thermoplastic resin composition which includes: a rubber polymer including a first styrene-based monomer unit and a diene-based monomer unit in a weight ratio of 10:90 to 35:65 and having an average particle diameter of 250 to 450 nm; a (meth)acrylate-based monomer unit; and a second styrene-based monomer unit, wherein a weight ratio of the (meth)acrylate-based monomer unit to the second styrene-based monomer unit is 2 or less, and a weight-average molecular weight ranges from 130,000 to 250,000 g/mol.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 27, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Jeong Su Choi, Won Seok Lee, Roo Da Lee, Sang Hoo Park, Jong Ju Lee, Seung Je Oh
  • Publication number: 20220335463
    Abstract: Disclosed is an event service providing system using a digital twin of a real space and a virtual space, and more particularly, an event service providing system using a digital twin of a real space and a virtual space capable of securing evenness and fairness between participants competing in the offline and online stores by adjusting the difficulty according to the progress of the event held at each offline store and online store as well as securing the reliability and integrity of the determination of winners winning a prize in a process of conducting the same fusion lottery event between offline and online stores after generating an online store which is a virtual space equal to a real space using a digital twin with respect to an offline store which is a real space.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 20, 2022
    Inventors: Ju Hyoung KIM, Won Seok LEE
  • Publication number: 20220336770
    Abstract: A display device and an adhesive member are provided. A display device according to an embodiment of the present disclosure includes: a display panel; a cover window disposed on the display panel; and a first adhesive member disposed between the display panel and the cover window, in which the first adhesive member includes a urethane monomer, and the urethane monomer includes 2,6-diisopropylphenyl isocyanate (2,6-DIPPI) of about 5 wt % or more and about 10 wt % or less with respect to a total weight of the first adhesive member.
    Type: Application
    Filed: November 5, 2021
    Publication date: October 20, 2022
    Inventors: Boo Kan KI, Kyung Mi KWON, Won Seok KIM, Ho Yun BYUN, Se Been LEE, Jeong In LEE
  • Publication number: 20220336711
    Abstract: A light-emitting element and a display device including the same are provided. The light-emitting element comprises a first semiconductor layer doped with an n-type dopant, a second semiconductor layer disposed below the first semiconductor layer and doped with a p-type dopant, a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer, a first intermediate layer disposed on the first semiconductor layer, and including a metal, and an electrode layer disposed on the first intermediate layer. Light from the light-emitting layer transmits through the first semiconductor layer, the first intermediate layer, and the electrode layer at a transmittance equal to or greater than about 70%.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 20, 2022
    Applicants: Samsung Display Co., LTD., POSTECH Research and Business Development Foundation
    Inventors: Se Young KIM, Jong Lam LEE, Won Seok CHO, Dong Uk KIM, Jae Yong PARK, Chul Jong YOO
  • Patent number: 11476425
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 18, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Han-Kook Oh, Yun-Ji Lee, Hye-Su Ji, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi
  • Publication number: 20220328563
    Abstract: A semiconductor device may include first row lines each extending in a first direction, column lines each extending in a second direction crossing the first direction, second row lines each extending in the first direction, a plurality of first memory cells respectively coupled between the first row lines and the column lines, each of the plurality of first memory cells including a first variable resistance layer and a first dielectric layer positioned between the first variable resistance layer and a corresponding one of the first row lines, and a plurality of second memory cells respectively coupled between the second row lines and the column lines, each of the plurality of second memory cells including a second variable resistance layer and a second dielectric layer positioned between the second variable resistance layer and a corresponding one of the second row lines.
    Type: Application
    Filed: October 5, 2021
    Publication date: October 13, 2022
    Inventors: Beom Seok LEE, Won Jun LEE, Seok Man HONG
  • Patent number: 11469507
    Abstract: The present invention relates to a communication technique for fusing a 5G communication system to support a higher data transmission rate than a 4G system, with IoT technology, and a system thereof. In addition, the present invention provides an antenna module comprising: a first plate which forms an upper surface of the antenna module and has a first opening surface on one side surface, a second plate which forms a side surface of the antenna module, forms a first angle with the first plate in contact with the first plate, and has a second opening surface on one side surface so as to extend the first opening surface, and a power supply unit which has one surface electrically connected to the first plate and is disposed on the first opening surface or the second opening surface.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: October 11, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jung Yub Lee, Jun Ho Park, Doo Seok Choi, Won Bin Hong, Young Ju Lee
  • Patent number: 11468420
    Abstract: A digital module built-in desk to be placed at a location where business transactions between a clerk and a customer are performed is provided. The desk includes a desk body including an upper plate having a customer-side desk portion providing a space for the customer; a customer digital module mounted in the customer-side desk portion, the customer digital module including a tablet through which information necessary for the business transactions is inputted; and a clerk digital module provided in the side of the clerk-side desk portion, the clerk digital module including a monitor for displaying information necessary for the business transactions.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: October 11, 2022
    Assignee: Hyosung TNS Inc.
    Inventors: Young Ho Ahn, Yoo Mee Min, Young Jin Yoon, Hyeokjun Yun, Won Seok Lee, Hee-youn Lee, Byung Seok Han
  • Publication number: 20220311133
    Abstract: An antenna element according to an exemplary embodiment includes a dielectric layer; and an antenna pattern formed in a mesh structure on the dielectric layer and including an irregularly-shaped edge. The antenna element according to the example is excellent in terms of the pattern visibility, while maintaining the antenna performance.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 29, 2022
    Inventors: Yun Seok OH, Young Ju KIM, Hee Jun PARK, Won Hee LEE, Jae Hyun LEE
  • Publication number: 20220305956
    Abstract: A system and method are arranged to control a low voltage DC converter of a fuel cell vehicle, in which, although a CAN communication timeout where the low voltage DC converter does not receive an off command from a vehicle control unit or a CAN communication failure occurs, when an output current of the low voltage DC converter is lowered by at least a predetermined value, the low voltage DC converter is turned off by itself by determining that a post-treatment operation of a fuel cell system is completed, and after the low voltage DC converter is turned off, a relay of a high voltage battery is opened, thereby preventing the relay of the high voltage battery from fusing.
    Type: Application
    Filed: August 24, 2021
    Publication date: September 29, 2022
    Inventors: Sang Kyu Lee, Tae Woo Kim, Se La Lim, Won Seok Jin
  • Publication number: 20220302528
    Abstract: Disclosed are a lithium-air battery including a redox mediator in an electrolyte and having a protective layer on an anode, and a method of manufacturing the same. The lithium-air battery includes an anode including a lithium metal, a protective layer positioned on the anode and including lithium fluoride (LiF), a cathode, and an electrolyte positioned between the protective layer and the cathode. Particularly, the electrolyte includes a halogen ion (X?) which is a redox mediator.
    Type: Application
    Filed: December 7, 2021
    Publication date: September 22, 2022
    Inventors: Gwang Seok Oh, Kyoung Han Ryu, Young Suk Cho, Won Keun Kim, Hun Gi Jung, Seung Ho Yu, Min Ah Lee, Hee Dae Lim, Min Gi Jeong
  • Patent number: 11434228
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: September 6, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Seong-Jong Park, Ji-Young Kim, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Patent number: 11427562
    Abstract: The present application provides a hetero-cyclic compound capable of significantly enhancing lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: August 30, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Han-Kook Oh, Jun-Tae Mo, Yong-Geun Jung, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Patent number: 11421103
    Abstract: The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 23, 2022
    Assignee: LG CHEM, LTD
    Inventors: Jong Ju Lee, Jeong Su Choi, Won Seok Lee, Roo Da Lee, Ho Hoon Kim, Keun Hoon Yoo, Seok Goo Jang, Sang Hoo Park, Hye Jeong Ok, Hyung Seop Shim
  • Patent number: 11424529
    Abstract: An antenna structure includes a dielectric layer, a radiation pattern on the dielectric layer and a signal pad on the dielectric layer. The signal pad includes a bonding region that is electrically connected to the radiation pattern and is configured to be bonded to an external circuit structure, and a margin region adjacent to the bonding region. Impedance mismatching is prevented by the margin region so that radiation efficiency is improved.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: August 23, 2022
    Assignees: DONGWOO FINE-CHEM CO., LTD., POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Han Sub Ryu, Yun Seok Oh, Young Jun Lee, Won Bin Hong