Composition Patents (Class 361/321.4)
  • Patent number: 11114246
    Abstract: A multilayer ceramic electronic component includes an element body. The element body includes a capacitance region and an exterior region. The capacitance region is formed by alternately laminating inner dielectric layers and internal electrode layers having different polarities. The exterior region is laminated outside the capacitance region in a laminating direction and formed by outer dielectric layers. The internal electrode layers contain a main component of copper and/or silver. An exterior void ratio is larger than a capacitance void ratio, in which the exterior void ratio is an area ratio of voids contained in the exterior region, and the capacitance void ratio is an area ratio of voids contained in the capacitance region.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 7, 2021
    Assignee: TDK CORPORATION
    Inventor: Toshihiro Iguchi
  • Patent number: 11101073
    Abstract: A dielectric ceramic composition includes a barium titanate-based base material main ingredient and an accessory ingredient, and the accessory ingredient includes dysprosium (Dy) and gadolinium (Gd) as first accessory ingredient elements, and a content ratio of gadolinium (Gd), based on a total content of the first accessory ingredient elements, is 25% or higher.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: August 24, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Young Ham, Hyoung Uk Kim, Kyoung Jin Cha, Min Young Choi, Ji Hong Jo, Seung In Baik
  • Patent number: 11078123
    Abstract: A metal oxynitride thin film having a perovskite structure, in which the metal oxynitride thin film has a composition represented by a compositional formula A1+?BOx+?Ny wherein ? is larger than zero and 0.300 or less, x+? is larger than 2.450, and y is 0.300 or more and 0.700 or less, an AO structure having a layered structure parallel to a plane perpendicular to a c-axis of the perovskite structure and having a composition represented by a general formula AO, and the AO structure is bonded with the perovskite structure and incorporated in the perovskite structure.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 3, 2021
    Assignee: TDK CORPORATION
    Inventors: Kumiko Yamazaki, Yuki Nagamine, Takeshi Shibahara, Yuji Umeda, Junichi Yamazaki
  • Patent number: 11081277
    Abstract: An electronic component includes a multilayer body including inner electrodes and dielectric layers alternately stacked, and an outer electrode electrically connected to the inner electrodes. The multilayer body includes first and second main surfaces opposite to each other in a stacking direction, first and second side surfaces opposite to each other in a width direction, and first and second end surfaces opposite to each other in a length direction. The outer electrode includes first outer electrodes disposed on the first and second end surfaces, and at least one second outer electrode disposed on at least one of the first and second side surfaces. The at least one second outer electrode is directly connected to the inner electrodes at positions spaced away from the at least one of the first or second side surface toward the inside of the multilayer body.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: August 3, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Satoshi Muramatsu, Masatoshi Yanagihara, Akitaka Doi
  • Patent number: 11072564
    Abstract: A dielectric ceramic composition having improved insulation specific resistance and a highly accelerated lifetime. The dielectric ceramic composition includes a dielectric particle having a core-shell structure including a main component expressed by a general formula ABO3, where A is Ba and the like, and B is Ti and the like), and a rare earth element component R, in which a shell part of the core-shell structure has an average rare earth element concentration C of 0.3 atom % or more. The rare earth element has a specified concentration gradient or concentration variation.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: July 27, 2021
    Assignee: TDK CORPORATION
    Inventors: Takuma Ariizumi, Toshihiko Kaneko, Nobuto Morigasaki, Yasuhiro Ito
  • Patent number: 11049657
    Abstract: A multilayer ceramic electronic component includes a ceramic body including a dielectric layer and a plurality of internal electrodes disposed to face each other with the dielectric layer interposed therebetween and external electrodes disposed on external surfaces of the ceramic body and electrically connected to the internal electrodes, respectively. The external electrode includes electrode layers electrically connected to the internal electrodes, and plating layers disposed on the electrode layers. At least one point, at which slopes of tangent lines of one of the electrode layers and the plating layers are opposite to each other, is disposed in a region within a range of ±0.2 BW around a point (0.5 BW) that is a halfway point of an overall width BW of the electrode layers disposed on the first surface or the second surface of the ceramic body.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: June 29, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Bum Soo Kim, Jang Yeol Lee, Jong Ho Lee
  • Patent number: 11049652
    Abstract: A multi-layer ceramic capacitor includes: a ceramic body including a multi-layer chip and a side margin, the multi-layer chip including a capacitance forming unit including internal electrodes laminated in a first direction, positions of end portions of the internal electrodes in a second direction orthogonal to the first direction being aligned with one another within a range of 0.5 ?m, and a cover covering the capacitance forming unit in the first direction, the side margin covering the multi-layer chip in the second direction, the ceramic body having a main surface facing in the first direction, a side surface facing in the second direction, an end surface facing in a third direction orthogonal to the above directions, and a corner portion connecting those surfaces; and an external electrode covering the end surface and the corner portion, the corner portion having a surface roughness of 30 nm or more.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: June 29, 2021
    Assignee: Taiyo Yuden Co., Ltd.
    Inventor: Kotaro Mizuno
  • Patent number: 11043553
    Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: June 22, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-soo Kim, Seung-min Ryu, Chang-su Woo, Hyung-suk Jung, Kyu-ho Cho, Youn-joung Cho
  • Patent number: 11031181
    Abstract: A dielectric composition includes a base material powder including barium titanate (BaTiO3), and zirconium (Zr) within a range from greater than 0.5 moles to 1.5 moles, with respect to 100 moles of the base material powder. In addition, a multilayer capacitor includes the dielectric composition.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyung Sik Kim, Ji Hong Jo, Kyoung Jin Cha
  • Patent number: 11024460
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and having first and second surfaces opposing each other, third and fourth surfaces connecting the first and second surfaces to each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; a plurality of internal electrodes disposed in the ceramic body, each exposed to the first and second surfaces and having one ends exposed to the third or fourth surface; and a first side margin portion and a second side margin portion disposed, respectively, on the first and second surfaces, in which a metal or a metal oxide is disposed in the dielectric layer, and a ratio of a diameter of the metal or the metal oxide to a thickness of the dielectric layer is 0.8 or less.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Park, Hwi Dae Kim, Ki Pyo Hong
  • Patent number: 11011441
    Abstract: A multilayer ceramic substrate that includes a first layer positioned at a surface of the multilayer ceramic substrate, a second layer adjacent the first layer and positioned inward of the first layer, and a surface layer electrode disposed on a surface of the first layer. The first layer has a porosity of 13% or less and a maximum pore size of 10 ?m or less. The second layer has a porosity of 14% or less and a maximum pore size of 11 ?m or less.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: May 18, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Seiji Fujita
  • Patent number: 11011306
    Abstract: A ceramic electronic component that includes a ceramic insulator and an inner conductor layer disposed in the ceramic insulator. The inner conductor layer contains a metal and a metal oxide containing at least one first metal element selected from Ti, Mg, and Zr, first insulator regions that contain at least one second metal element selected from Ti, Mg, and Zr and that are discontinuous from the ceramic insulator and present in a dispersed state in the inner conductor layer, and a second insulator region containing a third metal element the same as the second metal element contained in the first insulator regions and present around the inner conductor layer.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 18, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiromichi Tanaka, Yuki Takemori
  • Patent number: 11011312
    Abstract: A multilayer ceramic capacitor includes: a multilayer chip in which each of dielectric layers and each of internal electrode layers are alternately stacked and the internal electrode layers are alternately exposed to two end faces; and external electrodes formed on the two end faces; wherein: the external electrodes have a structure in which a plated layer is formed on a ground layer including Mo; and “M?0.003185×(Ew×Et)?0.5921 is satisfied when “Et” is a height from a bottom one of the internal electrode layers to a top one of the internal electrode layers, “Ew” is a width of the internal electrode layers in a direction in which side faces of the multilayer chip face with each other, and “M” is a Mo concentration (atm %) with respect to a main component ceramic of a total of the multilayer chip and the pair of external electrodes.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: May 18, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Daisuke Iwai, Atsuhiro Yanagisawa, Yoshinori Shibata, Masumi Ishii, Takeshi Nosaki, Hiroyuki Moteki
  • 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: 10902994
    Abstract: A coil electronic component includes a body including a plurality of insulating layers and coil patterns disposed on the insulating layers, and external electrodes formed on external surfaces of the body and connected to the coil patterns, wherein the external electrodes include first layers being electroless plating layers and second layers formed on the first layers and having a form in which metal particles are dispersed in a polymer base, respectively.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chi Seong Kim, Jun Il Kang, Sa Yong Lee, Gun Hwi Hyung
  • Patent number: 10892101
    Abstract: A multilayer ceramic capacitor includes a body including a dielectric layer and an internal electrode, and an external electrode disposed on the body. The external electrode includes an electrode layer connected to the internal electrode, a first plating portion disposed on the electrode layer and having a thickness ranging from 0.3 ?m to 1 ?m, and a second plating portion disposed on the first plating portion.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Lee, Hyun Hee Gu, Eui Hyun Jo, Jong Ho Lee, Eun Jin Kim, Hye Young Choi
  • Patent number: 10840024
    Abstract: A multilayer capacitor includes: a first internal electrode layer including first and second internal electrodes disposed to face each other with an insulating portion interposed therebetween; a second internal electrode layer including a third internal electrode and a lead portion connected to the third internal electrode; a body including the first and second internal electrode layers alternately disposed with respective dielectric layers interposed therebetween; first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively; and a third external electrode disposed on the body to be connected to the lead portion.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: November 17, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Pil Lee, Jung Il Kim, Jin Man Jung, Young Key Kim, Jin Kyung Joo
  • Patent number: 10804037
    Abstract: A method of manufacturing a multilayer ceramic electronic component includes: preparing a plurality of first ceramic sheets; forming internal electrode patterns on the first ceramic sheets using a conductive paste, respectively; stacking the first ceramic sheets on which the internal electrode pattern is formed to form a ceramic body including internal electrodes disposed therein to face each other; forming electrode layers by transferring a nickel-containing sheet on both end surfaces of the ceramic body in a length direction of the ceramic body so as to be connected to the internal electrodes, respectively; forming electrically insulating layers by attaching a second ceramic sheet for forming an electrically insulating layer to the electrode layers, respectively; and preparing external electrodes by forming plating layers on one surface of the ceramic body in a thickness direction of the ceramic body, to be connected to the electrode layers, respectively.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Park, Ki Pyo Hong, Jin Yung Ryu, Jae Yeol Choi
  • Patent number: 10770231
    Abstract: In an embodiment, a multilayer ceramic capacitor 10 includes external electrodes 12 on both of first-direction ends of a capacitor body 11. Also, groups of metal grains 13 are provided on one third-direction face and another third-direction face of the capacitor body 11. Both of the first-direction ends of the groups of metal grains 13 provided on the other third-direction face of the capacitor body 11 are covered by second parts 12c of the respective external electrodes 12, while both of the first-direction ends of the groups of metal grains 13 provided on the one third-direction face of the capacitor body 11 are covered by first parts 12b of the respective external electrodes 12. The multilayer ceramic electronic component can offer excellent heat dissipation property.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: September 8, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shohei Kitamura, Toru Makino, Kotaro Mizuno
  • Patent number: 10757810
    Abstract: Provided is a high density multi-component package and a method of manufacturing a high density multi-component package. The high density multi-component package comprises at least two electronic components wherein each electronic component of the electronic components comprise a first external termination and a second external termination. At least one interposer is between the adjacent electronic components and attached to the interposer by an interconnect wherein the interposer is selected from an active interposer and a mechanical interposer. Adjacent electronic components are connected serially.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: August 25, 2020
    Assignee: KEMET Electronics Corporation
    Inventors: John Bultitude, Galen Miller, John E. McConnell
  • Patent number: 10706995
    Abstract: A chip varistor includes two functional layers (that is, a first functional layer and a second functional layer) inside an element body, and the two functional layers have substantially the same electrostatic capacitance. In the chip varistor, the element body is made highly resistive from an outer surface due to alkali metal containing portion. However, the alkali metal containing portion does not reach the first functional layer and the second functional layer. Therefore, the alkali metal containing portion curbs a parasitic capacitance of the chip varistor without affecting the electrostatic capacitances of the first functional layer and the second functional layer. Accordingly, the chip varistor includes the two functional layers in which variations in capacitance are curbed.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: July 7, 2020
    Assignee: TDK CORPORATION
    Inventor: Masayuki Uchida
  • Patent number: 10584066
    Abstract: A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 ?m or less.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: March 10, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Hyun Yoon, Jung Deok Park, Chan Hee Nam, Dong Hun Kim
  • Patent number: 10580584
    Abstract: A multilayer ceramic capacitor includes a body including first and second dielectric layers and having first to sixth surfaces; a second internal electrode disposed on the second dielectric layer to face the first internal electrode with the first or second dielectric layer interposed therebetween, exposed to the fourth, fifth, and sixth surfaces, and disposed to be spaced apart from the third surface by a second space; a first dielectric pattern disposed in at least a portion of the first space; a second dielectric pattern disposed in at least a portion of the second space; a side insulating layer disposed on the fifth and sixth surfaces; a first external electrode disposed on the third surface; and a second external electrode disposed on the fourth surface, in which the first and second dielectric patterns have a color different from the first and second dielectric layers.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Hoon Kim, Byung Kun Kim, Byung Chul Jang, Chang Hak Choi, Jung Deok Park
  • Patent number: 10553359
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and having first and second surfaces opposing each other, third and fourth surfaces connecting the first and second surfaces to each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; a plurality of internal electrodes disposed in the ceramic body, each exposed to the first and second surfaces and having one ends exposed to the third or fourth surface; and a first side margin portion and a second side margin portion disposed, respectively, on the first and second surfaces, in which a metal or a metal oxide is disposed in the dielectric layer, and a ratio of a diameter of the metal or the metal oxide to a thickness of the dielectric layer is 0.8 or less.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Park, Hwi Dae Kim, Ki Pyo Hong
  • Patent number: 10468186
    Abstract: A perovskite ceramic composition that contains Sn, Ba, and Ti, and where the Sn content is within a range of about 0.001 parts by mol?Sn?about 0.999 parts by mole with respect to 100 parts by mole of the Ti. The perovskite ceramic composition can be used in a composition that further includes a rare earth element R, Mn, and Si, and optionally Mg, where proportions of the R, the Mn, the Si, and the optional Mg, satisfy R: 0<R?about 10 parts by mole, Mn: 0<Mn?about 5 parts by mole, Si: 0<Si?about 5 parts by mole Mg: 0<Mg?about 5 parts by mole with respect to 100 parts by mole of Ti.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 5, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kohei Shimada, Katsuya Ishida
  • Patent number: 10446321
    Abstract: The present invention relates to a multilayer electronic component which includes an element body where a plurality of internal electrode layers and dielectric layers are alternately laminated. Insulating layers are disposed on a pair of side surfaces of the element body, facing each other. The insulating layers contain a glass composition and a ceramic composition.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 15, 2019
    Assignee: TDK CORPORATION
    Inventors: Yohei Noda, Hirobumi Tanaka
  • Patent number: 10431385
    Abstract: A multilayer ceramic capacitor includes: a pair of external electrodes; a first internal electrode containing a base metal and coupled to one of the external electrodes; a dielectric layer stacked on the first internal electrode and containing a ceramic material and the base metal; and a second internal electrode stacked on the dielectric layer, containing the base metal, and coupled to another one of the external electrodes, wherein a concentration of the base metal in each of five regions, which are equally divided regions of a region between locations 50 nm away from the first and second internal electrodes in a stacking direction between the first and second internal electrodes, is within ±20% of an average of the concentrations of the base metal in the five regions, and an average grain size in the dielectric layer is 200 nm or less.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: October 1, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Katsuya Taniguchi, Koichiro Morita, Minoru Ryu, Yoshiki Iwazaki
  • Patent number: 10340084
    Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers including a co-material are alternately stacked, wherein a Mo concentration in the co-material is smaller than that in a ceramic grain in the ceramic dielectric layer.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 2, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Noriyuki Chigira
  • Patent number: 10325721
    Abstract: A multilayer ceramic electronic device comprising: a ceramic element body, in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately stacked, and at least a pair of external electrodes which are connected to the internal electrode layers on surfaces of the ceramic element body; a thickness of the dielectric layers is 0.4 ?m or less, a width (W0) of the ceramic element body along a width-direction is 0.59 mm or less, a gap (Wgap) between an outer face of the ceramic element body and an end of the internal electrode layers along width-direction of the ceramic element body is 0.010 to 0.025 mm, and a ratio (Wgap/W0) of the gap with respect to the width is 0.025 or more.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: June 18, 2019
    Assignee: TDK Corporation
    Inventors: Shogo Murosawa, Toshihiko Kaneko
  • Patent number: 10312022
    Abstract: A capacitor includes a capacitor body having upper and lower surfaces and end surfaces connecting the upper and lower surfaces; and an external electrode disposed on a surface of the capacitor body and having a first electrode layer, a second electrode layer, and a third electrode layer. The second electrode layer includes metal and resin and is interposed between the first electrode layer and the third electrode layer, and a portion of the second electrode layer covering the end surface of the capacitor body has a thickness less than that of a portion of the first electrode layer covering the end surface of the capacitor body.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Moon Lee, Myung Jun Park, Hye Jin Jeong, Chung Yeol Lee, Young Sook Lee, Jae Yeol Choi, Hye Young Choi, Byoung Jin Chun
  • Patent number: 10290423
    Abstract: A conductive powder for an internal electrode includes a metal particle; and a graphene layer or an oxidized graphene layer disposed on at least a portion of a surface of the metal particle.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: May 14, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Myeong Gi Kim, Yu Ra Shin, Jang Yeol Lee, Seong Min Chin, Hak Kwan Kim
  • Patent number: 10285272
    Abstract: A capacitor component includes a body including a plurality of dielectric layers having a stacked structure and a plurality of first internal electrodes and a plurality of second internal electrodes alternately disposed with dielectric layers disposed therebetween. A first external electrode is on a first surface and a second surface of the body, on the opposing side of the body, and connected to the plurality of first internal electrodes. A second external electrode is on a third surface and a fourth surface of the body, opposing each other, and connected to one or more of the plurality of second internal electrodes.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 7, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Heung Kil Park, Jong Hwan Park
  • Patent number: 10262796
    Abstract: A dielectric composition is provided. The dielectric composition includes a tungsten bronze type complex oxide expressed by a chemical formula (K1-xNax)Sr2Nb5O15 as a main component, x satisfying 0?x?0.50, wherein the dielectric composition includes a secondary phase of at least one or more selected from: MgO.SiO2; BaO.2MgO.2SiO2; and 2MgO.B2O3; or the dielectric composition includes a tungsten bronze type complex oxide expressed by a chemical formula (K1-xNax)Sr2Nb5O15 as a main component, x satisfying 0?x?0.40, wherein the dielectric composition includes: MgO; BaO; B2O3; SiO2; and P2O5 as a first accessory component in a total content of 2.5 mol to 20.0 mol per 100 mol of the main component.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 16, 2019
    Assignee: TDK CORPORATION
    Inventor: Tetsuhiro Takahashi
  • Patent number: 10262797
    Abstract: A multilayer body includes a multilayer structure including a glass ceramic layer including a glass and a filler and a ferrite layer including a ferrite, in which the glass ceramic layer has a glass content of about 30.0% or more by weight and about 80.0% or less by weight and a filler content of about 20.0% or more by weight and about 70.0% or less by weight, the glass included in the glass ceramic layer includes about 0.5% or more by weight and about 5.0% or less by weight R2O (R represents at least one selected from the group consisting of Li, Na, and K), about 0% or more by weight and about 5.0% or less by weight Al2O3, about 10.0% or more by weight and about 25.0% or less by weight B2O3, and about 70.0% or more by weight and about 85.0% or less by weight SiO2 based on the total weight of the glass, and the filler included in the glass ceramic layer includes at least one of SiO2 and Al2O3 and also includes about 5.0% or more by weight and about 15.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 16, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hiroshige Adachi
  • Patent number: 10224148
    Abstract: A multi-layer ceramic capacitor includes a multi-layer unit, a side margin, and a bonding unit. The multi-layer unit includes ceramic layers and internal electrodes. The ceramic layers are made of first ceramics and laminated in a first direction, the first ceramics having a first average crystal grain diameter. The internal electrodes are disposed between the ceramic layers. The side margin is made of second ceramics and covers the multi-layer unit from a second direction orthogonal to the first direction, the second ceramics having a second average crystal grain diameter. The bonding unit is made of third ceramics and disposed between the multi-layer unit and the side margin, the third ceramics having a third average crystal grain diameter that is larger than the first average crystal grain diameter and the second average crystal grain diameter.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: March 5, 2019
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Kotaro Mizuno, Yukihiro Konishi, Yoichi Kato
  • Patent number: 10217925
    Abstract: A method of forming an electronic structural element having a stack including first and second electrode layers arranged alternatively with material layers is disclosed. A stack is formed with the first electrode layers projecting beyond a first lateral side of the stack and the second electrode layers spaced radially inward from the first lateral side. A first contacting structure that contacts each first electrode layer is applied directly to the first side of the stack, which contacting structure embeds such the projecting first electrode layers in an electrically conductive manner. A second contacting structure is formed by exposing the first and second electrode layers at a second side of the stack, forming, by an additive method, a solvent-free insulating structure that electrically insulates the first electrode layers, and applying an electrically conductive material over the solvent-free insulating structure to form the second contacting structure that contacts each second electrode layer.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 26, 2019
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Thomas Richter, Claus Zumstrull
  • Patent number: 10153091
    Abstract: A multi-layer ceramic capacitor includes a multi-layer unit and a side margin. The multi-layer unit includes ceramic layers laminated in a first direction, internal electrodes disposed between the ceramic layers, and a side surface from which the internal electrodes are exposed, the side surface being oriented in a second direction orthogonal to the first direction. The side margin covers the side surface. The side margin includes a first area having a porosity of 10% or less, a dimension of the first area in the second direction from the side surface being ¼ of a dimension of the side margin in the second direction, and a second area having a porosity of 10% or more and 25% or less and having a porosity higher than the porosity of the first area, the second area covering the first area from the second direction.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 11, 2018
    Assignee: Taiyo Yuden Co., Ltd.
    Inventor: Yusuke Kowase
  • Patent number: 10147547
    Abstract: A multilayer ceramic electronic component includes an inner layer part comprising dielectric layers and internal electrodes that are alternately disposed; and cover parts disposed on upper and lower surfaces of the inner layer part. The cover parts contain a nickel metal.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 4, 2018
    Assignee: SAMSUNG ELECTRO-MACHANICS CO., LTD.
    Inventors: Eun Jung Lee, Hyea Sun Yun, Sung Ho Lee, Hyo Sub Kim
  • Patent number: 10096425
    Abstract: A multilayer ceramic capacitor includes a laminate constituted by internal electrode layers of different polarities alternately layered via dielectric layers, wherein the multilayer ceramic capacitor is such that the dielectric layers contain ceramic grains whose primary component is BaTiO3, the ceramic grains contain Mo, Mn, rare earth R, and at least one of V and W, and the average valence number of Mo in the ceramic grains is 4.50 to 5.50. The multilayer ceramic capacitor can offer excellent service life characteristics and sufficiently suppress leak current even when the thickness of the dielectric layer is 0.8 ?m or less.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: October 9, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Chie Kawamura, Yoichiro Ogata, Tetsuo Shimura, Minoru Ryu, Yoshiki Iwazaki
  • Patent number: 10079106
    Abstract: A multilayer ceramic capacitor that includes a ceramic laminated body having dielectric layers and internal electrodes at the interfaces between the dielectric layers, and external electrodes on the outer surface of the ceramic laminated body. The dielectric layers contain, as their main constituent, a perovskite-type compound including Ba, Ti, Zr, and M. M is at least one element of Ta, Nb, V, and W. The dielectric layers further contain Mn and Si as additive constituents. With respect to the total amount of Ti, Zr, and M, 40 mol %<Zr?90 mol %, M is 1 mol %?M?10 mol %. When the total amount of Ti, Zr, and M is regarded as 100 parts by mol, 1 part by mol?Mn?10 parts by mol, 1 part by mol?Si?5 parts by mol, and 0.5?Mn/M?3.0.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: September 18, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoichiro Suzuki, Takafumi Okamoto
  • Patent number: 10074480
    Abstract: A dielectric ceramic composition having good characteristic even under high electric field intensity, and particularly good IR characteristic and high temperature accelerated lifetime. The present invention is a dielectric ceramic composition comprising, a main component comprising a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, a first sub component comprising oxides of a rare earth element, a second sub component as a sintering agent, wherein said dielectric ceramic composition is a complete solid solution particle wherein the rare earth element is solid dissolved to entire dielectric particle, or a core-shell particle having high ratio of the diffusion phase, and comprises the dielectric particle having 5 to 20 atom % of the average concentration of the rare earth element in the diffusion phase, and having uniform concentration distribution of the rare earth element in the diffusion phase.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 11, 2018
    Assignee: TDK CORPORATION
    Inventors: Dan Sakurai, Nobuto Morigasaki, Tatsuya Ishii, Takuma Ariizumi, Shinsuke Hashimoto, Yasuhiro Ito
  • Patent number: 10062509
    Abstract: A multilayer ceramic capacitor that includes a laminated body having a plurality of ceramic layers including crystal grains that have a perovskite structure, and a plurality of internal electrode layers; and external electrodes on first and second end surfaces of the laminated body and electrically connected to respective sets of the plurality of internal electrodes. In the ceramic layers, when the content of Ti is 100 parts by mol, the ceramic layers contain Ca at 0.10 to 15.00 parts by mol; Mg at 0.0010 to 0.0097 parts by mol; R at 0.50 to 4.00 parts by mol; M at 0.10 to 2.00 parts by mol; and Si at 0.50 to 2.00 parts by mol, and core parts of the crystal grains contain Ca.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: August 28, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kohei Shimada
  • Patent number: 10059630
    Abstract: The object of the present invention is to provide the dielectric ceramic composition having good characteristics even under the high electric field intensity, and particularly good IR characteristic and the high temperature accelerated lifetime. The dielectric ceramic composition according to the present invention comprises a main component comprising a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3 (note that, said “m”, “x”, “y” and “z” all show a mol ratio, and each satisfies 0.94?m?1.1, 0?x?0.2, 0?y?0.2, 0.06?z<0.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 28, 2018
    Assignee: TDK CORPORATION
    Inventors: Dan Sakurai, Nobuto Morigasaki, Tatsuya Ishii, Takuma Ariizumi
  • Patent number: 10026552
    Abstract: A multilayer ceramic capacitor that includes a laminated body having a plurality of ceramic layers including crystal grains that have a perovskite structure, and a plurality of internal electrode layers; and external electrodes on first and second end surfaces of the laminated body and electrically connected to respective sets of the plurality of internal electrodes. In the ceramic layers, when the content of Ti is 100 parts by mol, the ceramic layers contain Ca at 0.10 to 15.00 parts by mol; Mg at 0.0010 to 0.0097 parts by mol; R at 0.50 to 4.00 parts by mol; M at 0.10 to 2.00 parts by mol; and Si at 0.50 to 2.00 parts by mol, and core parts of the crystal grains contain Ca.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 17, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kohei Shimada
  • Patent number: 10020115
    Abstract: Disclosed herein is a dielectric composite comprising an organic polymer that has a glass transition temperature greater than or equal to about 250° C.; and a dielectric filler present in an amount effective to impart to the dielectric composite a dielectric constant that varies by less than 5% over a temperature range of 25° C. to 300° C., with an applied alternating electric field having a frequency of 104 Hz and a maximum operating electric field strength of at least 250 megavolt per meter. Disclosed herein too is a method of manufacturing the dielectric composite and articles that contain the dielectric composite.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 10, 2018
    Assignee: THE PENN STATE RESEARCH FOUNDATION
    Inventors: Qing Wang, Qi Li
  • Patent number: 10008327
    Abstract: A multilayer ceramic capacitor that includes a laminate which has a plurality of dielectric layers and a plurality of internal electrode layers respectively laminated. The dielectric layers are a perovskite type structure containing Ba, Sr, Zr, Ti and Hf, and optionally Ca, and further include V, wherein (number of moles of Sr)/(number of moles of Ba+number of moles of Ca+number of moles of Sr) is 0.6 to 0.95, (number of moles of Zr)/(number of moles of Zr+number of moles of Ti+number of moles of Hf) is 0.9 to 0.98, thicknesses of the dielectric layers are 1 ?m or less, and an average particle size of dielectric particles constituting the dielectric layers is 0.8 ?m or less.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 26, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinya Isota, Tatsuya Izumi, Tomotaka Hirata, Yasuhiro Nishisaka
  • Patent number: 9984825
    Abstract: A dielectric material includes a barium titanate based base material main ingredient and an accessory ingredient. In a fine sintered structure of the dielectric material, crystal grains in which a content of Ca is less than 2.5 mol % are first crystal grains, crystal grains in which the content of Ca is 4.0 to 12.0 mol % are second crystal grains, and a ratio of an average size of the first crystal grains to an average size of the second crystal grains is in a range of 1.6 to 2.2.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yun Jung Park, Seok Hyun Yoon, Hyoung Uk Kim, Chang Hoon Kim, Doo Young Kim
  • Patent number: 9969933
    Abstract: The present invention relates to a phosphor represented by the Formula [1]: MaSrbCacAldSieNf, wherein the phosphor includes phosphor particles in which single crystallites are three-dimensionally coupled to each other, the phosphor particles include a crystal grain boundary triple point, and [a total number of the crystal grain boundary triple points (A)]/[the number of the phosphor particles (B)] is 1.0 or less.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 15, 2018
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Hajime Matsumoto
  • Patent number: 9966190
    Abstract: A dielectric ceramic composition has good characteristics even under the high electric field intensity, and particularly good IR characteristic and the high temperature accelerated lifetime. The dielectric ceramic composition has a main component having a perovskite type compound shown by a compositional formula (Ba1-x-ySrxCay)m(Ti1-zZrz)O3, a first sub component having oxides of a rare earth element R, a second sub component as a sintering agent, wherein the dielectric particles has dielectric particles having high diffusion rate of the rare earth element, preferably of a complete solid solution particle, and when a concentration of Ti atom in the diffusion phase is 100 atom %, then an average concentration of the rare earth element R in the diffusion phase is 5 atom % or more, and an average concentration of Zr in the diffusion phase is 10 atom % or more.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: May 8, 2018
    Assignee: TDK CORPORATION
    Inventors: Dan Sakurai, Nobuto Morigasaki, Tatsuya Ishii, Takuma Ariizumi, Shinsuke Hashimoto, Yasuhiro Ito
  • Patent number: 9847184
    Abstract: Provided is a process for producing an electrolyte-impregnated laminar graphene structure for use as a supercapacitor electrode. The process comprises (a) preparing a graphene dispersion having multiple isolated graphene sheets dispersed in an electrolyte; and (b) subjecting the graphene dispersion to a forced assembly procedure, forcing the multiple graphene sheets to assemble into an electrolyte-impregnated laminar graphene structure, wherein the multiple graphene sheets are alternately spaced by thin electrolyte layers, less than 5 nm in thickness, and the graphene sheets are substantially aligned along a desired direction, and wherein the laminar structure has a physical density from 0.5 to 1.7 g/cm3 and a specific surface area from 50 to 3,300 m2/g, when measured in a dried state of the laminar structure with the electrolyte removed. This process leads to a supercapacitor having a large electrode thickness, high active mass loading, high tap density, and exceptional energy density.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 19, 2017
    Assignee: Nanotek Instruments, Inc.
    Inventors: Aruna Zhamu, Bor Z Jang