Patents by Inventor Ki Myoung Yun

Ki Myoung Yun 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).

  • Patent number: 11776745
    Abstract: A multilayer capacitor includes a body including a dielectric layer and internal electrodes; and an external electrode disposed on the body to be connected to the internal electrode, wherein the dielectric layer includes a plurality of grains having a core-shell structure having a pore in a core, and the dielectric layer includes 20% to 40% of grains having two or less pores, among the plurality of grains.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ki Myoung Yun, Joon Yeob Cho
  • Publication number: 20220157527
    Abstract: A multilayer capacitor includes a body including a dielectric layer and internal electrodes; and an external electrode disposed on the body to be connected to the internal electrode, wherein the dielectric layer includes a plurality of grains having a core-shell structure having a pore in a core, and the dielectric layer includes 20% to 40% of grains having two or less pores, among the plurality of grains.
    Type: Application
    Filed: August 20, 2021
    Publication date: May 19, 2022
    Inventors: Ki Myoung YUN, Joon Yeob CHO
  • Patent number: 11211181
    Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor comprising the same includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, and the accessory ingredient includes a third trivalent lanthanide rare earth element A and terbium (Tb) as rare earth elements, and a molar ratio (Tb/A) of a content of terbium (Tb) to the content of the trivalent lanthanide rare earth element A satisfies 0.15?Tb/A<0.50.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hyung Soon Kwon, Jae Sung Park, Min Young Choi, Ki Myoung Yun, Hyoung Uk Kim, Tae Young Ham, Seung In Baik
  • Patent number: 11201012
    Abstract: A multilayer ceramic capacitor includes a ceramic body having a dielectric layer disposed between two internal electrodes. The dielectric layer includes a plurality of dielectric grains. A grain boundary between at least two dielectric grains of the plurality of dielectric grains has a ratio Si/Ni of a weight of Si to a weight of Ni in the grain boundary that is at least 1 and 6 or less.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ki Myoung Yun, Jae Sung Park, Dong Jun Jung
  • Patent number: 10854363
    Abstract: A multilayer capacitor includes: a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively. The dielectric layer contains BaTiO3 as a main ingredient, and includes a plurality of grains and grain boundaries formed between adjacent grains, the grain boundary containing Si in an amount of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ki Myoung Yun, Hyoung Uk Kim, Jae Sung Park, Tae Young Ham, Hyung Soon Kwon, Jong Han Kim
  • Patent number: 10832867
    Abstract: A dielectric composition includes: a base material powder including (Ca1-xSrx) (Zr1-yTiy)O3 (0<x?0.7, 0<y?0.03); a first subcomponent including at least one selected from the group of an oxide of manganese (Mn) and a carbonate of manganese (Mn); a second subcomponent including at least one selected from the group of an oxide of yttrium (Y) and a carbonate of yttrium (Y), where a content of the second subcomponent is within a range from 2 to 3 mol, based on 100 mol of the base material powder; and a third subcomponent including at least one selected from the group of an oxide of silicon (Si) and a carbonate of silicon (Si), and an electronic component uses the same.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 10, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Young Choi, Hyoung Uk Kim, Ki Myoung Yun, Tae Young Ham, Hyung Soon Kwon
  • Publication number: 20200258684
    Abstract: A multilayer ceramic capacitor includes a ceramic body having a dielectric layer disposed between two internal electrodes. The dielectric layer includes a plurality of dielectric grains. A grain boundary between at least two dielectric grains of the plurality of dielectric grains has a ratio Si/Ni of a weight of Si to a weight of Ni in the grain boundary that is at least 1 and 6 or less.
    Type: Application
    Filed: December 19, 2019
    Publication date: August 13, 2020
    Inventors: Ki Myoung Yun, Jae Sung Park, Dong Jun Jung
  • Publication number: 20200251242
    Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor comprising the same includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, and the accessory ingredient includes a third trivalent lanthanide rare earth element A and terbium (Tb) as rare earth elements, and a molar ratio (Tb/A) of a content of terbium (Tb) to the content of the trivalent lanthanide rare earth element A satisfies 0.15?Tb/A<0.50.
    Type: Application
    Filed: July 1, 2019
    Publication date: August 6, 2020
    Inventors: Hyung Soon KWON, Jae Sung PARK, Min Young CHOI, Ki Myoung YUN, Hyoung Uk KIM, Tae Young HAM, Seung In BAIK
  • Patent number: 10600573
    Abstract: A capacitor component includes a body in which a dielectric layer and an internal electrode are alternately stacked, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a composite layer including a dielectric material powder and a metallic particle and first and second protective layers including a dielectric material powder and spaced apart by the composite layer. A thickness of each of the first and second protective layers is equal to or greater than ? of a thickness of the dielectric layer.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hyung Soon Kwon, Hyoung Uk Kim, Tae Young Ham, Jong Han Kim, Ki Myoung Yun, Jae Sung Park
  • Publication number: 20200043658
    Abstract: A dielectric composition includes: a base material powder including (Ca1-xSrx) (Zr1-yTiy)O3 (0<x?0.7, 0<y?0.03); a first subcomponent including at least one selected from the group of an oxide of manganese (Mn) and a carbonate of manganese (Mn); a second subcomponent including at least one selected from the group of an oxide of yttrium (Y) and a carbonate of yttrium (Y), where a content of the second subcomponent is within a range from 2 to 3 mol, based on 100 mol of the base material powder; and a third subcomponent including at least one selected from the group of an oxide of silicon (Si) and a carbonate of silicon (Si), and an electronic component uses the same.
    Type: Application
    Filed: September 26, 2018
    Publication date: February 6, 2020
    Inventors: Min Young CHOI, Hyoung Uk KIM, Ki Myoung YUN, Tae Young HAM, Hyung Soon KWON
  • Publication number: 20190244757
    Abstract: A capacitor component includes a body in which a dielectric layer and an internal electrode are alternately stacked, and an external electrode disposed on the body and connected to the internal electrode. The dielectric layer includes a composite layer including a dielectric material powder and a metallic particle and first and second protective layers including a dielectric material powder and spaced apart by the composite layer. A thickness of each of the first and second protective layers is equal to or greater than ? of a thickness of the dielectric layer.
    Type: Application
    Filed: September 6, 2018
    Publication date: August 8, 2019
    Inventors: Hyung Soon KWON, Hyoung Uk KIM, Tae Young HAM, Jong Han KIM, Ki Myoung YUN, Jae Sung PARK
  • Patent number: 10358388
    Abstract: A multilayer electronic component includes: a body including first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively, wherein each of the dielectric layers includes BamTiO3 and includes a plurality of grains and grain boundaries formed between adjacent grains, and a sum of contents of Si and Dy in the grain boundary is 10 to 15 parts by weight.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ki Myoung Yun, Dong Jun Jung, Jae Sung Park, Tae Young Ham, Hyung Soon Kwon, Jong Han Kim, Hyoung Uk Kim
  • Publication number: 20190148042
    Abstract: A multilayer capacitor includes: a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively. The dielectric layer contains BaTiO3 as a main ingredient, and includes a plurality of grains and grain boundaries formed between adjacent grains, the grain boundary containing Si in an amount of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %.
    Type: Application
    Filed: May 25, 2018
    Publication date: May 16, 2019
    Inventors: Ki Myoung YUN, Hyoung Uk KIM, Jae Sung PARK, Tae Young HAM, Hyung Soon KWON, Jong Han KIM
  • Publication number: 20190135701
    Abstract: A multilayer electronic component includes: a body including first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively, wherein each of the dielectric layers includes BamTiO3 and includes a plurality of grains and grain boundaries formed between adjacent grains, and a sum of contents of Si and Dy in the grain boundary is 10 to 15 parts by weight.
    Type: Application
    Filed: February 6, 2018
    Publication date: May 9, 2019
    Inventors: Ki Myoung YUN, Dong Jun JUNG, Jae Sung PARK, Tae Young HAM, Hyung Soon KWON, Jong Han KIM, Hyoung Uk KIM
  • Patent number: 9842696
    Abstract: There are provided a composite perovskite powder, a preparation method thereof, and a paste composition for an internal electrode having the same, the composite perovskite powder capable of preventing ions from being eluted from an aqueous system at the time of synthesis while being ultra-atomized, such that when the composite perovskite powder is used as an inhibitor powder for an internal electrode, sintering properties of the internal electrode may be deteriorated, and sintering properties of a dielectric material may be increased; accordingly, connectivity of the internal electrode may be improved, and permittivity and reliability of a multilayer ceramic capacitor (MLCC) may be increased.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 12, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kum Jin Park, Chang Hak Choi, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo
  • Patent number: 9023747
    Abstract: There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO3: and a second perovskite powder for a shell represented by ABO3, having an average particle diameter corresponding to ? to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Hak Choi, Chang Hoon Kim, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo
  • Publication number: 20150083978
    Abstract: There are provided a composite perovskite powder, a preparation method thereof, and a paste composition for an internal electrode having the same, the composite perovskite powder capable of preventing ions from being eluted from an aqueous system at the time of synthesis while being ultra-atomized, such that when the composite perovskite powder is used as an inhibitor powder for an internal electrode, sintering properties of the internal electrode may be deteriorated, and sintering properties of a dielectric material may be increased; accordingly, connectivity of the internal electrode may be improved, and permittivity and reliability of a multilayer ceramic capacitor (MLCC) may be increased.
    Type: Application
    Filed: January 13, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kum Jin PARK, Chang Hak CHOI, Sang Min YOUN, Kwang Hee NAM, Ki Myoung YUN, Hyung Joon JEON, Jong Hoon YOO
  • Publication number: 20140135203
    Abstract: There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO3: and a second perovskite powder for a shell represented by ABO3, having an average particle diameter corresponding to ? to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.
    Type: Application
    Filed: June 18, 2013
    Publication date: May 15, 2014
    Inventors: Chang Hak Choi, Chang Hoon Kim, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo