Patents by Inventor Eun Sang Na
Eun Sang Na 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: 10028373Abstract: A heat radiating member includes a body region having a first main surface and a second main surface opposing each other and lateral surfaces connecting the first main surface and the second main surface and having concave surfaces, and a curved surface region formed to have a convex surface on an edge at which at least one of the first main surface and the second main surface meets one of the lateral surfaces.Type: GrantFiled: August 4, 2016Date of Patent: July 17, 2018Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hye Seong Kim, Eun Sang Na, Ok Nam Kim
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Patent number: 9847172Abstract: An embedded device includes a multilayer body including dielectric layers and internal electrode layers interposed between adjacent dielectric layers; external electrodes disposed on external surfaces of the multilayer body to apply electric charges having different polarities to adjacent internal electrode layers, the external electrodes containing a conductive material; first copper layers disposed on external surfaces of the external electrodes to cover the external electrodes; and second copper layers disposed on the first copper layers to cover the first copper layers. An average particle diameter of powder particles of the first copper layers is greater than an average particle diameter of powder particles of the second copper layers.Type: GrantFiled: October 22, 2015Date of Patent: December 19, 2017Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hye Seong Kim, Eun Sang Na, Jin Sung Kim, Ok Nam Kim, Tae Hyeok Kim, Jin Man Jung
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Publication number: 20170135196Abstract: A heat dissipation member includes a body formed of a metal; and an epoxy resin layer formed on a surface of the body and having insulating properties. A printed circuit board includes a heat dissipation member embedded in the printed circuit board, the heat dissipation member including a body formed of a metal and an epoxy resin layer formed on a surface of the body and having insulating properties, and an insulator formed to surround the heat dissipation member.Type: ApplicationFiled: June 15, 2016Publication date: May 11, 2017Inventors: Hye Seong KIM, Eun Sang NA, Chul Soon AHN
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Patent number: 9607768Abstract: A multilayer ceramic capacitor includes first through fourth internal electrodes. The first and second internal electrodes are connected to first and second external electrodes, respectively, and disposed to face each other. The third and fourth internal electrodes are connected to the first and second external electrodes, respectively, and disposed to face each other, with a connection area of the third and fourth internal electrodes with the first and second external electrodes being different from the connection area where the first and second internal electrodes connect with the first and second external electrodes. The first and second external electrodes include first and second conductive layers disposed in inner portions thereof, and first and second conductive resin layers disposed in outer portions thereof, respectively.Type: GrantFiled: July 18, 2014Date of Patent: March 28, 2017Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Byoung Hwa Lee, Jin Man Jung, Jin Woo Lee, Eun Sang Na, Young Don Choi
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Publication number: 20170048964Abstract: A heat radiating member includes a body region having a first main surface and a second main surface opposing each other and lateral surfaces connecting the first main surface and the second main surface and having concave surfaces, and a curved surface region formed to have a convex surface on an edge at which at least one of the first main surface and the second main surface meets one of the lateral surfaces.Type: ApplicationFiled: August 4, 2016Publication date: February 16, 2017Inventors: Hye Seong KIM, Eun Sang NA, Ok Nam KIM
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Publication number: 20160174380Abstract: An embedded device includes a multilayer body including dielectric layers and internal electrode layers interposed between adjacent dielectric layers; external electrodes disposed on external surfaces of the multilayer body to apply electric charges having different polarities to adjacent internal electrode layers, the external electrodes containing a conductive material; first copper layers disposed on external surfaces of the external electrodes to cover the external electrodes; and second copper layers disposed on the first copper layers to cover the first copper layers. An average particle diameter of powder particles of the first copper layers is greater than an average particle diameter of powder particles of the second copper layers.Type: ApplicationFiled: October 22, 2015Publication date: June 16, 2016Inventors: Hye Seong KIM, Eun Sang NA, Jin Sung KIM, Ok Nam KIM, Tae Hyeok KIM, Jin Man JUNG
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Patent number: 9240280Abstract: A multilayer ceramic capacitor includes a ceramic body including dielectric layers; first and second internal electrodes facing each other while having the dielectric layer disposed therebetween, and alternately exposed to end surfaces of the ceramic body; first and second external electrodes electrically connected to the first and second internal electrodes, wherein each of the first and second external electrodes includes a first external electrode layer formed of material containing copper and glass and extending from an end surface of the ceramic body to portions of main and side surfaces of the ceramic body; a second external electrode layer formed of material containing glass, disposed on the first external electrode layer, and being shorter than the first external electrode layer to expose portion of the first external electrode layer; and a third external electrode layer formed of material containing copper and glass and covering the first and second external electrode layers.Type: GrantFiled: December 27, 2013Date of Patent: January 19, 2016Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Byong Gyun Kim, Duk Hyun Chun, Kyoung No Lee, Youn Sik Jin, Eun Sang Na, Doo Young Kim
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Publication number: 20150302992Abstract: There are provided a multilayer ceramic capacitor and a circuit board having the same. The multilayer ceramic capacitor may include: first and second internal electrodes connected to first and second external electrodes, respectively, and disposed to face each other; and third and fourth internal electrodes connected to the first and second external electrodes, respectively, and disposed to face each other, a connection area of the third and fourth internal electrodes with the first and second external electrodes being different from that of the first and second internal electrodes with the first and second external electrodes, and the first and second external electrodes including first and second conductive layers disposed in inner portions thereof and first and second conductive resin layers disposed in outer portions thereof, respectively.Type: ApplicationFiled: July 18, 2014Publication date: October 22, 2015Inventors: Byoung Hwa LEE, Jin Man JUNG, Jin Woo LEE, Eun Sang NA, Young Don CHOI
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Publication number: 20150179340Abstract: There is provided a multilayer ceramic capacitor including: a capacitor main body formed by alternately stacking an internal electrode including an internal electrode-forming material and a dielectric layer; and an external electrode formed on the external surface of the capacitor to be electrically connected to the internal electrode and having an external electrode-forming material, wherein the internal electrode includes a non-diffusion layer including the external electrode-forming material of 2 vol % to 20 vol % and a diffusion layer made of the external electrode-forming material on at least one of the both ends of the non-diffusion layer. The multilayer ceramic capacitor capable of preventing cracking due to the diffusion of electrode materials while stably securing capacitance and the method of fabricating the same can be provided.Type: ApplicationFiled: March 9, 2015Publication date: June 25, 2015Inventors: Kang Heon HUR, Byung Gyun KIM, Sang Hoon KWON, Doo Young KIM, Hyun Tae KIM, Mi Young KIM, Eun Sang NA, Jae Joon LEE
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Publication number: 20150085422Abstract: A multilayer ceramic capacitor includes a ceramic body including dielectric layers; first and second internal electrodes facing each other while having the dielectric layer disposed therebetween, and alternately exposed to end surfaces of the ceramic body; first and second external electrodes electrically connected to the first and second internal electrodes, wherein each of the first and second external electrodes includes a first external electrode layer formed of material containing copper and glass and extending from an end surface of the ceramic body to portions of main and side surfaces of the ceramic body; a second external electrode layer formed of material containing glass, disposed on the first external electrode layer, and being shorter than the first external electrode layer to expose portion of the first external electrode layer; and a third external electrode layer formed of material containing copper and glass and covering the first and second external electrode layers.Type: ApplicationFiled: December 27, 2013Publication date: March 26, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Byong Gyun KIM, Duk Hyun CHUN, Kyoung No LEE, Youn Sik JIN, Eun Sang NA, Doo Young KIM
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Patent number: 8842413Abstract: There is provided a multilayered ceramic electronic component having a reduced thickness and exhibiting hermetic sealing. In multilayered ceramic electronic component, an external electrode includes two layers, that is, first and second layers, and the first and second layers contain glass with different compositions, respectively. Therefore, the multilayered ceramic electronic component having high reliability, such as strong adhesion between the external electrode and the internal electrode, prevention of glass exudation, or the like, may be obtained.Type: GrantFiled: January 18, 2012Date of Patent: September 23, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Myung Jun Park, Da Young Choi, Byong Gyun Kim, Ji Sook Kim, Byung Jun Jeon, Hyun Hee Gu, Kyu Ha Lee, Gun Jung Yoon, Eun Sang Na
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Publication number: 20120295122Abstract: There is provided a multilayered ceramic electronic component having a reduced thickness and exhibiting hermetic sealing. In multilayered ceramic electronic component, an external electrode includes two layers, that is, first and second layers, and the first and second layers contain glass with different compositions, respectively. Therefore, the multilayered ceramic electronic component having high reliability, such as strong adhesion between the external electrode and the internal electrode, prevention of glass exudation, or the like, may be obtained.Type: ApplicationFiled: January 18, 2012Publication date: November 22, 2012Inventors: Myung Jun PARK, Da Young Choi, Byong Gyun Kim, Ji Sook Kim, Byung Jun Jeon, Hyun Hee Gu, Kyu Ha Lee, Gun Jung Yoon, Eun Sang Na
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Patent number: 8248752Abstract: A multilayer ceramic capacitor is provided. In the multilayer ceramic capacitor, a plurality of first and second inner electrodes are formed inside a ceramic sintered body. Ends of the first and second inner electrodes are alternately exposed to both ends of the ceramic sintered body. First and second outer electrodes are formed on both ends of the ceramic sintered body and connected to the first and second inner electrodes. The first and second outer electrodes include a first region having a porosity in the range of 1% to 10%, and a second region having a porosity less than that of the first region.Type: GrantFiled: September 15, 2010Date of Patent: August 21, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Kang Heon Hur, Sang Hoon Kwon, Doo Young Kim, Eun Sang Na, Byung Gyun Kim, Seok Joon Hwang, Kyoung Jin Jun, Hye Young Choi
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Publication number: 20120147517Abstract: There are provided a multilayer ceramic capacitor and a method of manufacturing the same. The multilayer ceramic capacitor according to the embodiment of the present invention includes a capacitor body in which inner electrodes including a first electrode material and dielectric layers are alternately stacked; a diffusion barrier layer formed on an outer surface of the capacitor body to be electrically connected to the inner electrodes, including the first electrode material, and having a thickness of 1 ?m to 10 ?m; and a first outer electrode layer formed to cover the diffusion barrier layer and including a second electrode material having a lower reactivity to oxygen than the first electrode material.Type: ApplicationFiled: December 9, 2011Publication date: June 14, 2012Inventors: Kang Heon HUR, Byung Gyun Kim, Eun Sang Na, Hye Young Choi, Jai Joon Lee, Kyoung Jin Jun, Doo Young Kim
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Publication number: 20110157767Abstract: A multilayer ceramic capacitor is provided. In the multilayer ceramic capacitor, a plurality of first and second inner electrodes are formed inside a ceramic sintered body. Ends of the first and second inner electrodes are alternately exposed to both ends of the ceramic sintered body. First and second outer electrodes are formed on both ends of the ceramic sintered body and connected to the first and second inner electrodes. The first and second outer electrodes include a first region having a porosity in the range of 1% to 10%, and a second region having a porosity less than that of the first region.Type: ApplicationFiled: September 15, 2010Publication date: June 30, 2011Inventors: Kang Heon HUR, Sang Hoon Kwon, Doo Young Kim, Eun Sang Na, Byung Gyun Kim, Seok Joon Hwang, Kyoung Jin Jun, Hye Young Choi
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Publication number: 20110149471Abstract: There is provided a multilayer ceramic capacitor including: a capacitor main body formed by alternately stacking an internal electrode including an internal electrode-forming material and a dielectric layer; and an external electrode formed on the external surface of the capacitor to be electrically connected to the internal electrode and having an external electrode-forming material, wherein the internal electrode includes a non-diffusion layer including the external electrode-forming material of 2 vol % to 20 vol % and a diffusion layer made of the external electrode-forming material on at least one of the both ends of the non-diffusion layer. The multilayer ceramic capacitor capable of preventing cracking due to the diffusion of electrode materials while stably securing capacitance and the method of fabricating the same can be provided.Type: ApplicationFiled: December 22, 2010Publication date: June 23, 2011Inventors: Kang Heon HUR, Byung Gyun Kim, Sang Hoon Kwon, Doo Young Kim, Hyun Tae Kim, Mi Young Kim, Eun Sang Na, Jae Joon Lee
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Publication number: 20110149470Abstract: Provided are a multilayer ceramic capacitor and a manufacturing method thereof, which can stably secure capacitance and prevent cracking caused by the diffusion of an electrode material. The multilayer ceramic capacitor includes a capacitor body where an inner electrode including a first electrode material and a dielectric layer are alternately laminated, and an outer electrode disposed on an outer surface of the capacitor body and electrically connected to the inner electrode, the outer electrode including a second electrode material. A diffusion layer having a length exceeding 1 ?m in which the first and second electrode materials are mixed is provided at a region where the inner electrode and the outer electrode are connected to each other.Type: ApplicationFiled: December 21, 2010Publication date: June 23, 2011Inventors: Kang Heon Hur, Hyun Tae Kim, Doo Young Kim, Eun Sang Na, Joon Hwan Kwag, Mi Young Kim, Byung Gyun Kim, Byung Jun Jeon
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Publication number: 20110141658Abstract: Disclosed is a multilayer ceramic capacitor. The multilayer ceramic capacitor includes a sintered ceramic body, a plurality of first internal electrodes and a plurality of second internal electrodes formed inside the sintered ceramic body, the first and second internal electrodes having ends alternately and respectively exposed to side surfaces of the sintered ceramic body, and first and second external electrodes formed on the side surfaces of the ceramic body and electrically connected to the first and second internal electrodes, the first and second external electrodes each including a plurality of pores with an average pore size of 2 ?m to 5 ?m and having a porosity of 2% to 10%.Type: ApplicationFiled: August 6, 2010Publication date: June 16, 2011Inventors: Eun Sang NA, Doo Young Kim, Byung Gyun Kim, Hyun Tae Kim, Kyoung Jin Jun, Mi Young Kim, Hye Young Choi
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Patent number: 7851393Abstract: The invention relates to a glass composition and a glass frit adequate for low temperature sintering agent at 1,100° C. or less, and a dielectric composition and a multilayer ceramic capacitor using the same. The glass composition comprises aLi2O-bK2O-cCaO-dBaO-eB2O3-fSiO2, in which a, b, c, d, e and f satisfy following relationships: a+b+c+d+e+f=100, 2?a?10, 2?b?10, 0?c?25, 0?d?25, 5?e?20, and 50?f?80.Type: GrantFiled: November 23, 2009Date of Patent: December 14, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sung Bum Sohn, Kang Heon Hur, Eun Sang Na, Tae Ho Song, Han Seong Jung, Chan Kong Kim
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Patent number: 7691762Abstract: The invention relates to a glass composition and a glass frit adequate for low temperature sintering agent at 1,100° C. or less, and a dielectric composition and a multilayer ceramic capacitor using the same. The glass composition comprises aLi2O-bK2O-cCaO-dBaO-eB2O3-fSiO2, in which a, b, c, d, e and f satisfy following relationships: a+b+c+d+e+f=100, 2?a?10, 2?b?10, 0?c?25, 0?d?25, 5?e?20, and 50?f?80.Type: GrantFiled: June 29, 2009Date of Patent: April 6, 2010Assignee: Samsung Electro-Mechanics Co.,Inventors: Sung Bum Sohn, Kang Heon Hur, Eun Sang Na, Tae Ho Song, Han Seong Jung, Chan Kong Kim