Patents by Inventor Chi Hwa LEE
Chi Hwa 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).
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Patent number: 10607776Abstract: A multilayer ceramic electronic component includes a ceramic body in which dielectric layers and internal electrodes are alternately stacked. The dielectric layers contain at least one dielectric grain having a ratio of a long axis to a short axis that is 3.5 or more. The internal electrodes contain a ceramic component containing a grain growth adjusting ingredient for dielectric grains. Each dielectric layer includes interfacial portions adjacent to the internal electrodes and a central portion disposed between the interfacial portions, and concentrations of the grain growth adjusting ingredient in the interfacial portions and the central portion are different from each other.Type: GrantFiled: March 16, 2016Date of Patent: March 31, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kum Jin Park, Chang Hak Choi, Jong Hoon Yoo, Doo Young Kim, Min Gi Sin, Chi Hwa Lee, Chul Seung Lee, Jong Han Kim
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Patent number: 10600572Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: GrantFiled: August 23, 2017Date of Patent: March 24, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
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Patent number: 10580575Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: GrantFiled: February 5, 2019Date of Patent: March 3, 2020Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
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Publication number: 20200066453Abstract: A multilayer capacitor includes a body including dielectric layers and first and second internal electrodes and first and second external electrodes disposed on opposing ends of the body and connected to the first and second internal electrodes, respectively, wherein ends of the first and second internal electrodes are bent toward the center of the body in a thickness direction and exposed to opposing end surfaces of the body and upper and lower surfaces of the first and second external electrodes are coplanar with upper and lower surfaces of the body, respectively.Type: ApplicationFiled: October 18, 2018Publication date: February 27, 2020Inventors: Young Bin JEONG, Hoe Chul JUNG, Chi Hwa LEE
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Patent number: 10418178Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: GrantFiled: August 23, 2017Date of Patent: September 17, 2019Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
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Publication number: 20190172641Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: ApplicationFiled: February 5, 2019Publication date: June 6, 2019Inventors: Jin Woo KIM, Jong Ho LEE, Min Gi SIN, Hak Kwan KIM, Chin Mo KIM, Chi Hwa LEE, Hong Seok KIM, Woo Sup KIM, Chang Hwa PARK
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Patent number: 10269492Abstract: A multilayer ceramic electronic component and a method of manufacturing the same are provided. The multilayer ceramic electronic component includes: a ceramic body including dielectric layers; and internal electrodes disposed on the dielectric layers within the ceramic body and containing a ceramic material trapped therein. The ceramic material is a dielectric material doped with an additive.Type: GrantFiled: July 14, 2015Date of Patent: April 23, 2019Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Kum Jin Park, Chang Hak Choi, Chi Hwa Lee, Min Gi Sin, Woo Sup Kim, Jong Hoon Yoo
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Publication number: 20180130601Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: ApplicationFiled: August 23, 2017Publication date: May 10, 2018Inventors: Jin Woo KIM, Jong Ho LEE, Min Gi SIN, Hak Kwan KIM, Chin Mo KIM, Chi Hwa LEE, Hong Seok KIM, Woo Sup KIM, Chang Hwa PARK
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Patent number: 9875847Abstract: A multilayer ceramic electronic component includes a plurality of dielectric layers; and internal electrodes disposed on the dielectric layers and containing an additive. The additive contains lithium (Li) and a dielectric material.Type: GrantFiled: January 21, 2016Date of Patent: January 23, 2018Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Min Gi Sin, Kum Jin Park, Jong Hoon Yoo, Chi Hwa Lee, Chang Hak Choi
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Patent number: 9633792Abstract: A conductive paste for an external electrode, a multilayer ceramic electronic component using the same, and a manufacturing method of a multilayer ceramic electronic component are provided. The conductive paste for an external electrode includes first conductive particles containing a metal, second conductive particles formed of ceramic particles coated with silver (Ag), and a thermosetting resin.Type: GrantFiled: May 21, 2015Date of Patent: April 25, 2017Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Chi Hwa Lee, Sang Min Youn, Kum Jin Park, Chang Hak Choi, Jin Woo Kim
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Patent number: 9576729Abstract: There is provided a multilayer ceramic electronic component including: a ceramic body in which internal electrodes and dielectric layers containing a barium titanate-based compound containing calcium (Ca) are alternately stacked; and external electrodes disposed on outer surfaces of the ceramic body and electrically connected to the internal electrodes. The dielectric layer includes interfacial portions adjacent to the internal electrodes and a central portion disposed between the interfacial portions, the interfacial portion having a calcium (Ca) concentration higher than that of the central portion.Type: GrantFiled: March 30, 2015Date of Patent: February 21, 2017Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Kum Jin Park, Chang Hak Choi, Chi Hwa Lee, Jong Hoon Yoo, Min Gi Sin
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Publication number: 20170025222Abstract: A multilayer ceramic electronic component includes a ceramic body in which dielectric layers and internal electrodes are alternately stacked. The dielectric layers contain at least one dielectric grain having a ratio of a long axis to a short axis that is 3.5 or more. The internal electrodes contain a ceramic component containing a grain growth adjusting ingredient for dielectric grains. Each dielectric layer includes interfacial portions adjacent to the internal electrodes and a central portion disposed between the interfacial portions, and concentrations of the grain growth adjusting ingredient in the interfacial portions and the central portion are different from each other.Type: ApplicationFiled: March 16, 2016Publication date: January 26, 2017Inventors: Kum Jin PARK, Chang Hak CHOI, Jong Hoon YOO, Doo Young KIM, Min Gi SIN, Chi Hwa LEE, Chul Seung LEE, Jong Han KIM
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Publication number: 20160314900Abstract: A multilayer ceramic electronic component includes a plurality of dielectric layers; and internal electrodes disposed on the dielectric layers and containing an additive. The additive contains lithium (Li) and a dielectric material.Type: ApplicationFiled: January 21, 2016Publication date: October 27, 2016Inventors: Min Gi SIN, Kum Jin PARK, Jong Hoon YOO, Chi Hwa LEE, Chang Hak CHOI
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Publication number: 20160181019Abstract: A multilayer ceramic electronic component and a method of manufacturing the same are provided. The multilayer ceramic electronic component includes: a ceramic body including dielectric layers; and internal electrodes disposed on the dielectric layers within the ceramic body and containing a ceramic material trapped therein. The ceramic material is a dielectric material doped with an additive.Type: ApplicationFiled: July 14, 2015Publication date: June 23, 2016Inventors: Kum Jin PARK, Chang Hak CHOI, Chi Hwa LEE, Min Gi SIN, Woo Sup KIM, Jong Hoon YOO
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Publication number: 20160104576Abstract: There is provided a multilayer ceramic electronic component including: a ceramic body in which internal electrodes and dielectric layers containing a barium titanate-based compound containing calcium (Ca) are alternately stacked; and external electrodes disposed on outer surfaces of the ceramic body and electrically connected to the internal electrodes. The dielectric layer includes interfacial portions adjacent to the internal electrodes and a central portion disposed between the interfacial portions, the interfacial portion having a calcium (Ca) concentration higher than that of the central portion.Type: ApplicationFiled: March 30, 2015Publication date: April 14, 2016Inventors: Kum Jin PARK, Chang Hak CHOI, Chi Hwa LEE, Jong Hoon YOO, Min Gi SIN
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Publication number: 20160099110Abstract: A conductive paste for an external electrode, a multilayer ceramic electronic component using the same, and a manufacturing method of a multilayer ceramic electronic component are provided. The conductive paste for an external electrode includes first conductive particles containing a metal, second conductive particles formed of ceramic particles coated with silver (Ag), and a thermosetting resin.Type: ApplicationFiled: May 21, 2015Publication date: April 7, 2016Inventors: Chi Hwa LEE, Sang Min YOUN, Kum Jin PARK, Chang Hak CHOI, Jin Woo KIM
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Patent number: RE49923Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.Type: GrantFiled: June 22, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park