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: 11776745Abstract: 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: GrantFiled: August 20, 2021Date of Patent: October 3, 2023Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ki Myoung Yun, Joon Yeob Cho
-
Publication number: 20220157527Abstract: 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: ApplicationFiled: August 20, 2021Publication date: May 19, 2022Inventors: Ki Myoung YUN, Joon Yeob CHO
-
Patent number: 11211181Abstract: 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: GrantFiled: July 1, 2019Date of Patent: December 28, 2021Assignee: 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: 11201012Abstract: 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: GrantFiled: December 19, 2019Date of Patent: December 14, 2021Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Ki Myoung Yun, Jae Sung Park, Dong Jun Jung
-
Patent number: 10854363Abstract: 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: GrantFiled: May 25, 2018Date of Patent: December 1, 2020Assignee: 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: 10832867Abstract: 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: GrantFiled: September 26, 2018Date of Patent: November 10, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Min Young Choi, Hyoung Uk Kim, Ki Myoung Yun, Tae Young Ham, Hyung Soon Kwon
-
Publication number: 20200258684Abstract: 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: ApplicationFiled: December 19, 2019Publication date: August 13, 2020Inventors: Ki Myoung Yun, Jae Sung Park, Dong Jun Jung
-
Publication number: 20200251242Abstract: 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: ApplicationFiled: July 1, 2019Publication date: August 6, 2020Inventors: Hyung Soon KWON, Jae Sung PARK, Min Young CHOI, Ki Myoung YUN, Hyoung Uk KIM, Tae Young HAM, Seung In BAIK
-
Patent number: 10600573Abstract: 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: GrantFiled: September 6, 2018Date of Patent: March 24, 2020Assignee: 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: 20200043658Abstract: 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: ApplicationFiled: September 26, 2018Publication date: February 6, 2020Inventors: Min Young CHOI, Hyoung Uk KIM, Ki Myoung YUN, Tae Young HAM, Hyung Soon KWON
-
Publication number: 20190244757Abstract: 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: ApplicationFiled: September 6, 2018Publication date: August 8, 2019Inventors: Hyung Soon KWON, Hyoung Uk KIM, Tae Young HAM, Jong Han KIM, Ki Myoung YUN, Jae Sung PARK
-
Patent number: 10358388Abstract: 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: GrantFiled: February 6, 2018Date of Patent: July 23, 2019Assignee: 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: 20190148042Abstract: 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: ApplicationFiled: May 25, 2018Publication date: May 16, 2019Inventors: Ki Myoung YUN, Hyoung Uk KIM, Jae Sung PARK, Tae Young HAM, Hyung Soon KWON, Jong Han KIM
-
Publication number: 20190135701Abstract: 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: ApplicationFiled: February 6, 2018Publication date: May 9, 2019Inventors: Ki Myoung YUN, Dong Jun JUNG, Jae Sung PARK, Tae Young HAM, Hyung Soon KWON, Jong Han KIM, Hyoung Uk KIM
-
Patent number: 9842696Abstract: 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: GrantFiled: January 13, 2014Date of Patent: December 12, 2017Assignee: 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: 9023747Abstract: 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: GrantFiled: June 18, 2013Date of Patent: May 5, 2015Assignee: 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: 20150083978Abstract: 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: ApplicationFiled: January 13, 2014Publication date: March 26, 2015Applicant: 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: 20140135203Abstract: 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: ApplicationFiled: June 18, 2013Publication date: May 15, 2014Inventors: Chang Hak Choi, Chang Hoon Kim, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo