Patents by Inventor Du Won Choi

Du Won 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: 20240038447
    Abstract: A multi-layered ceramic electronic component includes a ceramic body including a dielectric layer, and a plurality of first and second internal electrodes opposing each other with the dielectric layer interposed therebetween; and first and second external electrodes arranged outside of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer comprises a dielectric ceramic composition containing: a base material represented by (Ba1-xCax)TiO3 (0<x?0.09) as a main component, Y as a first accessory component, Mg as a second accessory component, Ba or Zr, or a mixture thereof, as a third accessory component, Mn, Ni, W, V, or Fe, or mixtures thereof, as a fourth accessory component, and Si as a fifth accessory component.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 1, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Publication number: 20240038446
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of first and second internal electrodes disposed on the dielectric layers to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer includes a dielectric ceramic composition including a base material main component represented by z(Ba(1-x)Ca.)TiO3-(1-z)BaTi205 including a first main component represented by (Ba(1-x)Ca.)TiO3 and a second main component represented by BaTi2O5, 0.7z0.8 and 0?x<0.1.
    Type: Application
    Filed: September 1, 2023
    Publication date: February 1, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Patent number: 11817264
    Abstract: A multi-layered ceramic electronic component includes a ceramic body including a dielectric layer, and a plurality of first and second internal electrodes opposing each other with the dielectric layer interposed therebetween; and first and second external electrodes arranged outside of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer comprises a dielectric ceramic composition containing: a base material represented by (Ba1-xCax)TiO3 (0<x?0.09) as a main component, Y as a first accessory component, Mg as a second accessory component, Ba or Zr, or a mixture thereof, as a third accessory component, Mn, Ni, W, V, or Fe, or mixtures thereof, as a fourth accessory component, and Si as a fifth accessory component.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Patent number: 11784001
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of first and second internal electrodes disposed on the dielectric layers to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer includes a dielectric ceramic composition including a base material main component represented by z(Ba(1-x)CaxTiO3-(1-z)BaTi2O5 including a first main component represented by (Ba(1-x)Cax)TiO3 and a second main component represented by BaTi2O5, 0.7?z?0.8 and 0?x<0.1.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: October 10, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Patent number: 11469044
    Abstract: A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo, Hae Suk Chung
  • Publication number: 20210327650
    Abstract: A method of manufacturing a multilayer ceramic electronic component includes: preparing a dielectric magnetic composition including base material powder particles including BaTi2O5 or (Ba(1-x)Cax)Ti2O5 (0?x?0.1), the base material powder particles having surfaces coated with one or more of Mg, Mn, V, Ba, Si, Al and a rare earth metal; preparing ceramic green sheets using dielectric slurry including the dielectric magnetic composition; applying an internal electrode paste to the ceramic green sheets; preparing a green sheet laminate by stacking the ceramic green sheets to which the internal electrode paste is applied; and preparing a ceramic body including dielectric layers and a plurality of first and second internal electrodes arranged to face each other with each of the dielectric layers interposed therebetween by sintering the green sheet laminate.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Du Won CHOI, Seok Kyoon WOO, Ji Hong JO
  • Patent number: 11075035
    Abstract: A multilayer capacitor includes: a capacitor body including dielectric layers and first and second internal electrodes, and having first to six external surfaces, wherein the first internal electrode is exposed through the third, fifth, and sixth external surfaces, and the second internal electrode is exposed through the fourth, fifth, and sixth external surfaces; first and second side portions; and first and second external electrodes including first and second sintered electrodes, and first and second conductive resin electrodes, respectively, wherein ?L/T<3.5% is satisfied, where L is a thickness of the first or second side portion, taken at a level at which the first or second internal electrode is disposed, ?L is a difference between a maximum L value and a minimum L value, and T is a length of the first or second side portion in a direction perpendicular to the first and second internal electrodes.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Patent number: 11062849
    Abstract: A method of manufacturing a multilayer ceramic electronic component includes: preparing a dielectric magnetic composition including base material powder particles including BaTi2O5 or (Ba(1-x)Cax)Ti2O5 (0?x<0.1), the base material powder particles having surfaces coated with one or more of Mg, Mn, V, Ba, Si, Al and a rare earth metal; preparing ceramic green sheets using dielectric slurry including the dielectric magnetic composition; applying an internal electrode paste to the ceramic green sheets; preparing a green sheet laminate by stacking the ceramic green sheets to which the internal electrode paste is applied; and preparing a ceramic body including dielectric layers and a plurality of first and second internal electrodes arranged to face each other with each of the dielectric layers interposed therebetween by sintering the green sheet laminate.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Seok Kyoon Woo, Ji Hong Jo
  • Publication number: 20210151253
    Abstract: A multi-layered ceramic electronic component includes a ceramic body including a dielectric layer, and a plurality of first and second internal electrodes opposing each other with the dielectric layer interposed therebetween; and first and second external electrodes arranged outside of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer comprises a dielectric ceramic composition containing: a base material represented by (Ba1-xCax)TiO3 (0<x?0.09) as a main component, Y as a first accessory component, Mg as a second accessory component, Ba or Zr, or a mixture thereof, as a third accessory component, Mn, Ni, W, V, or Fe, or mixtures thereof, as a fourth accessory component, and Si as a fifth accessory component.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Publication number: 20210090802
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of first and second internal electrodes disposed on the dielectric layers to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer includes a dielectric ceramic composition including a base material main component represented by z(Ba(1-x)Ca.)TiO3-(1-z)BaTi205 including a first main component represented by (Ba(1-x)Ca.)TiO3 and a second main component represented by BaTi2O5, 0.7z0.8 and 0?x<0.1.
    Type: Application
    Filed: December 10, 2020
    Publication date: March 25, 2021
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Patent number: 10930434
    Abstract: A multi-layered ceramic electronic component includes a ceramic body including a dielectric layer, and a plurality of first and second internal electrodes opposing each other with the dielectric layer interposed therebetween; and first and second external electrodes arranged outside of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer comprises a dielectric ceramic composition containing: a base material represented by (Ba1-xCax)TiO3 (0<x?0.09) as a main component, Y as a first accessory component, Mg as a second accessory component, Ba or Zr, or a mixture thereof, as a third accessory component, Mn, Ni, W, V, or Fe, or mixtures thereof, as a fourth accessory component, and Si as a fifth accessory component.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Patent number: 10892096
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of first and second internal electrodes disposed on the dielectric layers to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer includes a dielectric ceramic composition including a base material main component represented by z(Ba(1-x)Cax)TiO3-(1-z)BaTi2O5 including a first main component represented by (Ba(1-x)Cax)TiO3 and a second main component represented by BaTi2O5, 0.7?z?0.8 and 0?x<0.1.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Publication number: 20200411238
    Abstract: A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO, Hae Suk CHUNG
  • Patent number: 10796851
    Abstract: A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo, Hae Suk Chung
  • Patent number: 10770229
    Abstract: A dielectric composition contains: a base material powder containing BamTiO3 (0.995?m?1.010); a first accessory ingredient containing at least one element corresponding to a transition metal in Group 5 of the periodic table in a total content of 0.3 to 1.2 moles; a second accessory ingredient containing one of ions, oxides, carbides, and hydrates of Si in a content of 0.6 to 4.5 moles; a third accessory ingredient containing at least one element in Period 4 or higher; and a fourth accessory ingredient containing at least one element in Period 3, wherein 0.70×B?C+D?1.50×B and 0.20?D/(C+D)?0.80, in which B is a total content of the second accessory ingredient, C is a total content of the third accessory ingredient, and D is a total content of the fourth accessory ingredient.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung Kang, Hyung Kyu Kim, Jong Hyun Cho, Du Won Choi, Yong Koo Kim, Hang Kyu Cho
  • Publication number: 20200194178
    Abstract: A multi-layered ceramic electronic component includes a ceramic body including a dielectric layer, and a plurality of first and second internal electrodes opposing each other with the dielectric layer interposed therebetween; and first and second external electrodes arranged outside of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer comprises a dielectric ceramic composition containing: a base material represented by (Ba1-xCax)TiO3 (0<x?0.09) as a main component, Y as a first accessory component, Mg as a second accessory component, Ba or Zr, or a mixture thereof, as a third accessory component, Mn, Ni, W, V, or Fe, or mixtures thereof, as a fourth accessory component, and Si as a fifth accessory component.
    Type: Application
    Filed: March 14, 2019
    Publication date: June 18, 2020
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Publication number: 20200194177
    Abstract: A multilayer capacitor includes: a capacitor body including dielectric layers and first and second internal electrodes, and having first to six external surfaces, wherein the first internal electrode is exposed through the third, fifth, and sixth external surfaces, and the second internal electrode is exposed through the fourth, fifth, and sixth external surfaces; first and second side portions; and first and second external electrodes including first and second sintered electrodes, and first and second conductive resin electrodes, respectively, wherein ?L/T<3.5% is satisfied, where L is a thickness of the first or second side portion, taken at a level at which the first or second internal electrode is disposed, ?L is a difference between a maximum L value and a minimum L value, and T is a length of the first or second side portion in a direction perpendicular to the first and second internal electrodes.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 18, 2020
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Publication number: 20200176187
    Abstract: A capacitor component includes a body including a plurality of dielectric layers and first and second internal electrodes, alternately disposed to face each other with respective dielectric layers interposed therebetween, and first and second external electrodes disposed on external surfaces of the body and connected to the first and second internal electrodes, respectively. The body includes a capacitance forming portion, in which capacitance is formed by including the first and second internal electrodes, cover portions disposed above and below the capacitance forming portion, respectively, and margin portions disposed on both side surfaces of the capacitance forming portion, respectively. At least one selected from the cover portions and the margin portions includes a plurality of graphene platelets.
    Type: Application
    Filed: March 5, 2019
    Publication date: June 4, 2020
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO, Hae Suk CHUNG
  • Publication number: 20200118751
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and a plurality of first and second internal electrodes disposed on the dielectric layers to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrodes, wherein the dielectric layer includes a dielectric ceramic composition including a base material main component represented by z(Ba(1-x)Cax)TiO3-(1-z)BaTi2O5 including a first main component represented by (Ba(1-x)Cax)TiO3 and a second main component represented by BaTi2O5, 0.7?z?0.8 and 0?x<0.1.
    Type: Application
    Filed: November 29, 2018
    Publication date: April 16, 2020
    Inventors: Du Won CHOI, Ji Hong JO, Seok Kyoon WOO
  • Publication number: 20200111616
    Abstract: A method of manufacturing a multilayer ceramic electronic component includes: preparing a dielectric magnetic composition including base material powder particles including BaTi2O5 or (Ba(1-x)Cax)Ti2O5 (0?x<0.1), the base material powder particles having surfaces coated with one or more of Mg, Mn, V, Ba, Si, Al and a rare earth metal; preparing ceramic green sheets using dielectric slurry including the dielectric magnetic composition; applying an internal electrode paste to the ceramic green sheets; preparing a green sheet laminate by stacking the ceramic green sheets to which the internal electrode paste is applied; and preparing a ceramic body including dielectric layers and a plurality of first and second internal electrodes arranged to face each other with each of the dielectric layers interposed therebetween by sintering the green sheet laminate.
    Type: Application
    Filed: November 29, 2018
    Publication date: April 9, 2020
    Inventors: Du Won CHOI, Seok Kyoon WOO, Ji Hong JO