Patents by Inventor Dong Hyeok Choi

Dong Hyeok 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: 20240137511
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin-Ho LEE, Jung-Won KANG, Hyunsuk KO, Sung-Chang LIM, Dong-San JUN, Ha-Hyun LEE, Seung-Hyun CHO, Hui-Yong KIM, Hae-Chul CHOI, Dae-Hyeok GWON, Jae-Gon KIM, A-Ram BACK
  • Patent number: 11917148
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: February 27, 2024
    Assignees: Electronics And Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Jin-Ho Lee, Jung-Won Kang, Hyunsuk Ko, Sung-Chang Lim, Dong-San Jun, Ha-Hyun Lee, Seung-Hyun Cho, Hui-Yong Kim, Hae-Chul Choi, Dae-Hyeok Gwon, Jae-Gon Kim, A-Ram Back
  • Patent number: 11694829
    Abstract: A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: July 4, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: In Seong Sohn, Seok Bae, Dong Hyeok Choi
  • Patent number: 11569577
    Abstract: An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: January 31, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: In Seong Sohn, Dong Hyeok Choi
  • Patent number: 11462959
    Abstract: A permanent magnet of an embodiment comprises: a base magnet represented by a-b-c (a includes a rare earth-based element, b includes a transition element, and c includes boron (B)); and a coating layer coated on a surface of the base magnet, wherein the coating layer comprises a compound containing a metal having magnetism, the compound including: a phosphor (P); and a metal belonging to the fourth period in the periodic table.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: October 4, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Soo Han, Seok Bae, Young Jae Lee, Dong Hyeok Choi, Jung Eun Lee
  • Publication number: 20210249166
    Abstract: A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 12, 2021
    Inventors: In Seong SOHN, Seok BAE, Dong Hyeok CHOI
  • Publication number: 20210044019
    Abstract: An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.
    Type: Application
    Filed: January 29, 2019
    Publication date: February 11, 2021
    Inventors: In Seong SOHN, Dong Hyeok CHOI
  • Patent number: 10675606
    Abstract: Provided are a composition and a manufacturing method of a solid CO2 sorbent having excellent physical properties and chemical reaction characteristics, particularly having an excellent mid-temperature range activity for a fluidized bed process, for use in collecting a CO2 source (pre-combustion or pre-utilization) in syngas application fields such as integrated coal gasification combined cycle (IGCC) power systems, synthetic natural gas (SNG) and synthetic liquid fuel (CTL).
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: June 9, 2020
    Assignees: KOREA ELECTRIC POWER CORPORATION, KOREA WESTERN POWER CO., LTD.
    Inventors: Joong Beom Lee, Dong Hyeok Choi, Tae Hyoung Eom, Jeom In Baek, Seong JeGarl
  • Patent number: 10562770
    Abstract: Provided are nanoparticles passivated with a cationic metal-chalcogenide complex (MCC) and a method of preparing the same. A passivated nanoparticle includes: a core nanoparticle; and a cationic metal-chalcogenide compound (MCC) fixed on a surface of the core nanoparticle.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 18, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Kyung-sang Cho, Sang-wook Kim, Tae-ho Kim, Dong-hyeok Choi, Byoung-lyong Choi
  • Publication number: 20200028391
    Abstract: A permanent magnet of an embodiment comprises: a base magnet represented by a-b-c (a includes a rare earth-based element, b includes a transition element, and c includes boron (B)); and a coating layer coated on a surface of the base magnet, wherein the coating layer comprises a compound containing a metal having magnetism, the compound including: a phosphor (P); and a metal belonging to the fourth period in the periodic table.
    Type: Application
    Filed: April 11, 2018
    Publication date: January 23, 2020
    Inventors: Jong Soo HAN, Seok BAE, Young Jae LEE, Dong Hyeok CHOI, Jung Eun LEE
  • Patent number: 10464046
    Abstract: The present invention relates to an aqueous gas-converting catalyst composition comprising: an active component; a support; an inorganic binder; at least one accelerator selected from the group consisting of cobalt oxide, molybdenum oxide, nickel oxide, calcium oxide, barium oxide, strontium oxide, magnesium oxide, zirconium oxide, manganese oxide and barium titania; and at least one stabilizer selected from the group consisting of magnesium oxide, zirconium oxide, stabilized zirconia, and hydrotalcite. The catalyst according to the present invention can effectively capture and separate carbon dioxide due to the excellent physical properties thereof such as packing density and abrasion resistance, and high CO conversion. Also, according to the present invention, mass production is facilitated by applying a spraying technique, and overall costs are lowered because of high yield.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: November 5, 2019
    Assignee: Korea Electric Power Corporation
    Inventors: Joong Beom Lee, Chong Kul Ryu, Tae Hyoung Eom, Dong Hyeok Choi, Jeom In Baek, Seong Jeagarl, Seok Ran Yang
  • Publication number: 20190262796
    Abstract: Provided are a composition and a manufacturing method of a solid CO2 sorbent having excellent physical properties and chemical reaction characteristics, particularly having an excellent mid-temperature range activity for a fluidized bed process, for use in collecting a CO2 source (pre-combustion or pre-utilization) in syngas application fields such as integrated coal gasification combined cycle (IGCC) power systems, synthetic natural gas (SNG) and synthetic liquid fuel (CTL).
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Joong Beom Lee, Dong Hyeok Choi, Tae Hyoung Eom, Jeom In Baek, Seong JeGarl
  • Patent number: 10335762
    Abstract: Provided are a composition and a manufacturing method of a solid CO2 sorbent having excellent physical properties and chemical reaction characteristics, particularly having an excellent mid-temperature range activity for a fluidized bed process, for use in collecting a CO2 source (pre-combustion or pre-utilization) in syngas application fields such as integrated coal gasification combined cycle (IGCC) power systems, synthetic natural gas (SNG) and synthetic liquid fuel (CTL).
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: July 2, 2019
    Assignees: KOREA ELECTRIC POWER CORPORATION, KOREA WESTERN POWER CO., LTD.
    Inventors: Joong Beom Lee, Dong Hyeok Choi, Tae Hyoung Eom, Jeom In Baek, Seong JeGarl
  • Publication number: 20180093892
    Abstract: Provided are nanoparticles passivated with a cationic metal-chalcogenide complex (MCC) and a method of preparing the same.
    Type: Application
    Filed: November 21, 2017
    Publication date: April 5, 2018
    Applicants: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Kyung-sang CHO, Sang-wook KIM, Tae-ho KIM, Dong-hyeok CHOI, Byoung-lyong CHOI
  • Patent number: 9850130
    Abstract: Provided are nanoparticles passivated with a cationic metal-chalcogenide complex (MCC) and a method of preparing the same. A passivated nanoparticle includes: a core nanoparticle; and a cationic metal-chalcogenide compound (MCC) fixed on a surface of the core nanoparticle.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 26, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Kyung-sang Cho, Sang-wook Kim, Tae-ho Kim, Dong-hyeok Choi, Byoung-lyong Choi
  • Patent number: 9793741
    Abstract: The present invention relates to a magnetic sheet, a wireless charging sheet, and a method for manufacturing a magnetic sheet. According to an embodiment of the present invention, a magnetic sheet used in a wireless charging sheet, which includes a metal sheet layer consisting of a plurality of divided segments; and an insulating material filled in a dividing space between the segments and forms a magnetic path of a magnetic field generated around a coil, is provided. Further, a wireless charging sheet and a method for manufacturing a magnetic sheet are provided.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: October 17, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jeong Gu Yeo, Kang Ryong Choi, Dong Hyeok Choi, Sung Yong An, Chang Ryul Jung, Ji Man Ryu
  • Publication number: 20170225145
    Abstract: Provided are a composition and a manufacturing method of a solid CO2 sorbent having excellent physical properties and chemical reaction characteristics, particularly having an excellent mid-temperature range activity for a fluidized bed process, for use in collecting a CO2 source (pre-combustion or pre-utilization) in syngas application fields such as integrated coal gasification combined cycle (IGCC) power systems, synthetic natural gas (SNG) and synthetic liquid fuel (CTL).
    Type: Application
    Filed: June 30, 2015
    Publication date: August 10, 2017
    Inventors: Joong Beom Lee, Dong Hyeok Choi, Tae Hyoung Eom, Jeom In Baek, Seong JeGarl
  • Publication number: 20170200549
    Abstract: Disclosed herein are a metal-polymer complex film for an inductor and a method for manufacturing an inductor, the inductor being manufactured by using the metal-polymer complex film for an inductor, including: a metal powder; and an amorphous epoxy resin, wherein the metal-polymer complex film is made in a film type by using a mixture where a weight ratio of the metal powder is 75˜98 wt %, so that a plurality of inductors can be simultaneously manufactured to thereby improve production efficiency and characteristic values of the inductor can be also improved.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: Moon Soo PARK, Ic Seob KIM, Hwan Soo LEE, Dong Hyeok CHOI, Hye Yeon CHA
  • Patent number: 9391363
    Abstract: There are provided a multilayer ferrite sheet capable of performing communications in a wideband frequency, an antenna device using the same, and a manufacturing method thereof. The multilayer ferrite sheet includes: a Y-type hexaferrite layer; and a Z-type hexaferrite layer, wherein the Y-type hexaferrite and the Z-type hexaferrite are alternately laminated.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyeok Choi, Jin Young Kim, Sung Yong An, Ji Man Ryu
  • Patent number: 9153763
    Abstract: Disclosed herein is a thermoelectric material having a plate type layered structure where each layer has a thickness of 30 nm or less, a method for preparing the same, and a thermoelectric module using the same. According to the present invention, as for a thermoelectric material having a nanometer-sized layered structure, crystallinity of each layer is excellent, electric conductivity of electron is improved, and phonon diffraction is induced at a grain interface between layers, and thus, a thermoelectric module having excellent thermoelectric properties can be provided.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hyeok Choi, Sung Ho Lee, Ju Hwan Yang, Kang Heon Hur