And Divalent Metal Oxide Other Than Alkaline Earth Oxide Or Magnesium Oxide Patents (Class 501/138)
  • Patent number: 11127532
    Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor including the same are provided. The dielectric ceramic composition includes a BaTiO3-based base material main ingredient and an accessory ingredient, where the accessory ingredient includes dysprosium (Dy) and niobium (Nb) as first accessory ingredients. A total content of the Dy and Nb is less than or equal to 1.5 mol, based on 100 mol of Ti of the base material main ingredient, and a content of the Dy satisfies 0.7 mol<Dy<1.1 mol, based on 100 mol of Ti of the base material main ingredient.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 21, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Young Choi, Hyung Soon Kwon, Seung In Baik, Ji Hong Jo
  • Patent number: 11114247
    Abstract: The object of the present invention is to provide the multilayer ceramic capacitor having no deterioration of dielectric properties even in case an inhibitor of an internal electrode layer is pushed out to a dielectric layer when sintering. The multilayer ceramic capacitor 1 including a capacitor element body 10 comprising a dielectric layer 2 and an internal electrode layer 3 stacked in an alternating manner, wherein when Za represents Zr concentration of an dielectric particle in a center part 6 of the dielectric layer 2 and Zb represents Zr concentration of a dielectric particle near the internal electrode layer, 0<(Za/Zb)<1 is satisfied.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 7, 2021
    Assignee: TDK CORPORATION
    Inventors: Dan Sakurai, Toshihiko Kaneko, Nobuto Morigasaki, Toshinari Takahashi, Yasuhiro Ito
  • Patent number: 11087909
    Abstract: In an embodiment, an electronic component includes: an insulator part 10 of rectangular solid shape; a coil element 32 provided inside the insulator part 10; bottom electrodes 40 provided on a bottom face 14 of the insulator part 10 and electrically connected to the coil element 32; a plating layer 62 provided in a manner overlapping each bottom electrode 40 so that its end 64 on the bottom face 14 is away from the end 42 of the bottom electrode 40; and a plating layer 60 which is arranged between the bottom electrode 40 and the plating layer 62 and overlaps the bottom electrode 40, and which is constituted by a metal having lower solder wettability and higher melting point than those of the plating layer 62. The electronic component can suppress generation of cracking in the insulator part.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 10, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yoshikazu Maruyama, Noriyuki Mabuchi, Ichiro Yokoyama, Masataka Kohara, Keiichi Nozawa, Masakazu Okazaki, Chikako Yoshida, Tomoyuki Oyoshi, Ikuo Kakiuchi, Masami Seto
  • Patent number: 11062846
    Abstract: A dielectric ceramic composition includes a main component of a perovskite type compound represented by a general formula of ABO3, in which A is an element in an A-site, B is an element in a B-site, and O is an oxygen element. A includes Ba. A further includes at least one of Ca and Sr. B includes Ti. A sintered-body lattice volume obtained by X-ray diffraction method is 64.33 ?3 or below.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: July 13, 2021
    Assignee: TDK CORPORATION
    Inventors: Kosuke Takano, Momoyo Sasaki, Toshihiko Kaneko
  • Patent number: 11031182
    Abstract: A dielectric ceramic composition includes a main component of a perovskite type compound represented by a general formula of ABO3, in which A is an element in an A-site, B is an element in a B-site, and O is an oxygen element. A includes Ba. B includes Ti and Zr. A sintered-body lattice volume obtained by X-ray diffraction method is 64.50 ?3 or above.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: June 8, 2021
    Assignee: TDK CORPORATION
    Inventors: Kosuke Takano, Momoyo Sasaki, Toshihiko Kaneko
  • Patent number: 10892098
    Abstract: A multilayer ceramic electronic component includes an element body in which dielectric layers and internal electrode layers having different polarities are laminated alternately. The dielectric layers contain a main component of a perovskite-type compound represented by (Ba1-a-bSraCab)m(Ti1-c-dZrcHfd)O3. 0.94<m<1.1, 0?a?1, 0?b?1, 0?c?1, and 0?d?1 are satisfied. The dielectric layers contain a first sub-component of 2.5 mol or more to the main component of 100 mol. The first sub-component contains a boron oxide and/or a lithium oxide. The internal electrode layers contain a main component of copper and/or silver.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: January 12, 2021
    Assignee: TDK CORPORATION
    Inventor: Toshihiro Iguchi
  • Patent number: 10770237
    Abstract: A multilayer electronic component includes: a laminate having a plurality of multilayer capacitors are disposed to be adjacent to each other, each of the multilayer capacitors including a body including dielectric layers and first and second internal electrodes alternately exposed through two end surfaces of the body facing each other in a length direction with each of the dielectric layers interposed therebetween, and first and second external electrodes disposed on the two end surfaces of the body in the length direction, respectively; and first and second terminals disposed on the laminate to cover a plurality of first and second external electrodes, respectively.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soo Hwan Son, Jae Yeol Choi, Young Ghyu Ahn
  • Patent number: 10726899
    Abstract: A semiconductor structure includes an electrode, a ferroelectric material adjacent the electrode, the ferroelectric material comprising an oxide of at least one of hafnium and zirconium, the ferroelectric material doped with bismuth, and another electrode adjacent the ferroelectric material on an opposite side thereof from the first electrode. Related semiconductor structures, memory cells, semiconductor devices, electronic systems, and related methods are disclosed.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: July 28, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Albert Liao, Wayne I. Kinney, Yi Fang Lee, Manzar Siddik
  • Patent number: 10658113
    Abstract: Disclosed are a ceramic dielectric including a composite of a first dielectric and a second dielectric, wherein each of the first dielectric and the second dielectric includes strontium (Sr) and niobium (Nb) and has a different crystal system, a ceramic electronic component, and a device.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doh Won Jung, Chan Kwak, Tae Won Jeong
  • Patent number: 10650968
    Abstract: A multilayer ceramic capacitor includes dielectric layers and internal electrode layers provided on the dielectric layers. The dielectric layers each include a perovskite compound that includes Ca and Zr, and optionally Sr and Ti. Mn is disposed at an interface between one of the dielectric layers and one of the internal electrode layers, and a Mn/Zr molar ratio at the interface is not less than about 0.117.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 12, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takeshi Koga, Teppei Akiyoshi, Masayuki Ishihara, Katsuhiko Hara
  • Patent number: 10529487
    Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which internal electrodes and dielectric layers are alternately stacked; a first external electrode connected to a subset of the internal electrodes; and a second external electrode sandwiching the multilayer structure with the first external electrode in a first direction is connected to another subset of the internal electrodes, wherein t12×W1/N is equal to or more than 0.1, when a distance between a first edge positioned at outermost of the internal electrodes in a second direction intersecting with the first direction in a plane direction of the internal electrodes and the dielectric layers and a second edge positioned at innermost of the internal electrodes in the second direction is W1 (mm), each thickness of the plurality of dielectric layers is t1 (?m), and a stack number of the plurality of dielectric layers is N.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: January 7, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masaki Mochigi, Yousuke Nakada, Shinichi Tsunoda, Yasuyuki Mashimo
  • Patent number: 9991054
    Abstract: A multilayer electronic component includes an element body having an internal electrode layer and a dielectric layer. These are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction. Side surfaces oppositely facing in the first axis direction are respectively equipped with an insulating layer. End surfaces facing each other in the second axis direction are respectively equipped with an external electrode. An end portion in the first axis direction of the internal electrode layer is recessed from an end portion in the first axis direction of the dielectric layer to the inner side along the first axis direction. A main component of the internal electrode layer is Ni. A reaction portion is between the end portion in the first axis direction of the internal electrode layer and the insulating layer.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 5, 2018
    Assignee: TDK CORPORATION
    Inventors: Keisuke Okai, Hirobumi Tanaka, Yohei Noda
  • Patent number: 9953765
    Abstract: A laminated ceramic electronic component mounting structure includes a laminated ceramic electronic component including a ceramic body, first and second inner electrodes in the ceramic body including opposed portions including at least portions of which are opposed to each other in a thickness direction of the ceramic body, a first terminal electrode electrically connected to the first inner electrode, and a second terminal electrode electrically connected to the second inner electrode; and a circuit board including first and second electrode lands electrically connected to the first and second terminal electrodes and on which the laminated ceramic electronic component is mounted, wherein widths of the first and second electrode lands are smaller than widths of the first and second inner electrodes at the opposed portions.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: April 24, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shunsuke Takeuchi, Masashi Nishimura
  • Patent number: 9919970
    Abstract: Dielectric layers are prepared using a dielectric material that contains a ceramic powder having Ba, Ti, and additive element X which is solid-solubilized and is at least one element selected from the group consisting of Mo, Ta, Nb, and W, wherein the standard deviation of the ratio of the peak intensity of the additive element X (XK?) measured by STEM-EDX, and the sum of the peak intensity of the Ti and peak intensity of the Ba (BaL?+TiK?) measured by STEM-EDX, is less than 10.5% of the average ratio as measured at a total of five points including the three points that divide the maximum diameter of one grain of the ceramic powder into four equal parts, and two excluding the center point of the three points that divide the diameter crossing at right angles with the maximum diameter at its center point, into four equal parts.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: March 20, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kunihiko Nagaoka, Kazumichi Hiroi, Minoru Ryu, Chie Kawamura
  • Patent number: 9697935
    Abstract: A barium titanate based PTC thermistor ceramic composition without using Pb. Its Curie temperature is shifted to a temperature higher than 120° C. The PTC thermistor can readily turn semiconductive even if it is sintered in air. The resistivity at 25° C. is low and the variation rate of the resistivity at 25° C. with time is little. The PTC thermistor ceramic composition includes a sintered body having a barium titanate based compound represented by formula (1) as the main component, (Ba1-x-y-wBixAyREw)?(Ti1-zTMz)O3 (1), wherein, 1.02y?x?1.5y (2), 0.007?y?0.125 (3), 0?(w+z)?0.01 (4), 0.97???1.06 (5), and the sintered body contains Ca in a ratio of 0.01 mol or more and less than 0.05 mol relative to 1 mol of Ti site in terms of element.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: July 4, 2017
    Assignee: TDK CORPORATION
    Inventors: Kazuhiko Itoh, Yoshikazu Shimura
  • Patent number: 9607767
    Abstract: A laminate-type ceramic electric component such as laminated ceramic capacitor which has excellent mechanical strength and also has thermal shock resistance at the same time is provided. A laminate-type ceramic electronic component includes an inner layer part, in which dielectric layers including ABO3 (which represents a perovskite crystal in which A contains at least Ba and B contains at least Ti) as a main component and internal electrode layers are alternately laminated; and a pair of outer layer parts which sandwich the inner layer part, wherein the outer layer parts include a continuous film containing a Ba—Si—Ti—O based crystal phase.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: March 28, 2017
    Assignee: TDK Corporation
    Inventors: Makoto Endo, Koichi Yamaguchi, Keisuke Ishida
  • Patent number: 9522847
    Abstract: There are provided a dielectric ceramic having large specific resistance and even capacitance characteristic at 150° C., as well as a laminated ceramic electronic component employing such a dielectric ceramic. A ceramic layer includes crystal grains, the ceramic layer containing a perovskite type compound containing Ba, Ca, Ti, and Zr, containing Si, and optionally containing Mn. When the total content of Ti and Zr is 1 molar part, the content of Mn is 0.015 molar part or less, the content of Si is 0.005 molar part or more and less than 0.03 molar part, the molar ratio x of Ca/(Ba+Ca) satisfies 0.05<x<0.20, and the molar ratio y of Zr/(Ti+Zr) satisfies 0.03<y<0.18. The crystal grains have an average grain size of less than 130 nm.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: December 20, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoichiro Suzuki, Shinichi Yamaguchi
  • Patent number: 9472316
    Abstract: There are provided a dielectric composition for low-temperature sintering and a multilayer ceramic electronic component manufactured using the dielectric composition and the dielectric composition may contains: BaTiO3 as a main ingredient; and a Li2O—BaO compound as an accessory ingredient, wherein the accessory ingredient is contained in an amount of 0.2 mol % to 0.8 mol %, on the basis of 100 mol % of the main ingredient.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 18, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Bong Lim, Seok Hyun Yoon, No Hoon Park, Doo Young Kim, Chang Hoon Kim
  • Patent number: 9440885
    Abstract: A dielectric ceramic composition includes at least dielectric particles having a core-shell structure and segregation particles, a concentration of a rare earth compound in the segregation particle is twice or more than an average concentration of the rare earth compound in a shell part of the dielectric particle having the core-shell structure, an area occupied by the segregation particles is 0.1 to 1.1%, when a maximum particle size of the segregation particle is defined as rbmax, a minimum particle size of the segregation particle is defined as rbmin, and an average particle size of the dielectric particle having the core-shell structure is defined as ra, a relation of rbmax/ra?2.00 and rbmin/ra?0.25 is satisfied, and the segregation particles substantially do not include Mg.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 13, 2016
    Assignee: TDK CORPORATION
    Inventors: Nobuto Morigasaki, Takeru Yoshida, Tomohisa Fukuoka, Yuhta Matsunaga, Kazuhiro Komatsu
  • Patent number: 9390855
    Abstract: In a monolithic ceramic capacitor, ceramic layers defining inner layers are mainly composed of a perovskite compound containing Ba and Ti. A portion of an electrically effective section in the ceramic layers near a connecting portion between the inner electrodes and an outer electrode undergoes mapping analysis by an energy-dispersive method. In regions of the resulting mapping image, the regions extending from the interfaces between the inner electrodes and a corresponding one of the ceramic layers to positions about ? of the thickness of the ceramic layer in the stacking direction, ((L2?L3)/L1)×100?50 is satisfied, where L1 represents the total length of grain boundaries, L2 represents the total length of grain boundaries where a rare-earth element is present, and L3 represents the total length of portions where the grain boundaries where the rare-earth element is present are overlapped with grain boundaries with a specific element present.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: July 12, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshito Saito, Jun Ikeda, Kazuhisa Uchida
  • Patent number: 9343196
    Abstract: Provided is a resin composition with high dielectric insulation properties that has a dielectric constant of at least 20, a dielectric tangent of 0.1 or less, outstanding insulation properties (at least 1012 ?·cm), and for use in electrical power, communication devices, and the like. A resin composition with high dielectric insulation properties comprises a constituent (A), which is 100 parts by mass of a polymer material that acts as a dispersion medium for constituent (B), and a constituent (B), which is 100-3000 parts by mass of a perovskite complex oxide powder comprising secondary particles formed by the mutual bonding of primary particles through sintering and represented by the formula: ABO3.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 17, 2016
    Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
    Inventors: Toshihiko Matsukura, Hiroyoshi Iijima, Masanari Shimakawa
  • Patent number: 9334192
    Abstract: The present invention relates to a dielectric ceramic composition, method for preparing the same, and electronic device using the same. According to the present invention, there is provided a dielectric ceramic composition which allows use of a nickel internal electrode, sintering under a reducing atmosphere, and having 1000 or higher dielectric constant while providing excellent dc-bias properties and reliability which is close to paraelectric property. The composition of the present invention can generate high effective capacity under high DC voltage, have strong resistance against electrostatic discharge (ESD) damage, and be used for preparing an electronic device having low acoustic noise.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 10, 2016
    Assignees: SAMSUNG ELECTRO-MECHANICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Seok-Hyun Yoon, Masaki Takaki, Yoon-Ah Roh, Dae-Ho Yoon, Chang-Hoon Kim, Doo-Young Kim
  • Patent number: 9263190
    Abstract: In a multilayer ceramic capacitor, an inner ceramic layer includes a perovskite-type compound containing Ba and Ti. A region within an electrically effective portion of the inner ceramic layers sandwiched between inner electrodes, which is near an area where inner and outer electrodes connect to each other, is subjected to a mapping analysis using EDS. ((L2?L3)/L1)×100?50 is satisfied, L1 denotes a total length of ceramic grain boundaries detected from a TEM transmission image, L2 denotes a total length of grain boundaries, detected from a mapping image and the TEM transmission image, where the rare earth element is present, and L3 denotes a total length of portions, detected from a mapping image and the TEM transmission image, in which the grain boundaries where the rare earth element is present and grain boundaries where at least one of Mn, Mg, and Si is present are overlapped.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: February 16, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuhisa Uchida, Yoshito Saito, Jun Ikeda
  • Patent number: 9233878
    Abstract: A dielectric ceramic composition may include a base powder represented by (1-x) BaTiO3-xBiMO3 (M being configured of Mg and Ti) containing a first main component represented by BaTiO3 and a second main component represented by BiMO3, x satisfying 0.005?x?0.5, and Some embodiments of the present disclosure may provide a novel dielectric ceramic composition capable of securing X8R temperature characteristics and reliability.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 12, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Hyun Yoon, Jae Sung Park, Soo Kyung Cho, Doo Young Kim, Chang Hoon Kim
  • Patent number: 9169161
    Abstract: A ceramic material has the following composition: (Ba1-xMnx)O.z(Ti1-yMmy)O2.Dd.Ee. In this composition, (Ba1-xMnx)=A and (Ti1-yMmy)=B, where Mn stands for at least one element selected from: Mg, Ca, Sr, Pb and mixtures thereof; Mm stands for at least one element selected from: Sn, Zr and mixtures thereof; D stands for at least one element having donor properties; E stands for at least one element having acceptor properties. The following applies for the parameters: 0?x?0.6; 0?y?0.35; 0?d?0.02; 0?e?0.02; 1<z; and the following applies for the molar ratio of B to A: 1<B/A. The ceramic material comprises Si only as an impurity.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 27, 2015
    Assignee: EPCOS AG
    Inventors: Bernhard Steinberger, Werner Kahr, Jan Ihle
  • Patent number: 9153382
    Abstract: A multilayer ceramic capacitor exhibits superior life characteristics in a high temperature load test despite the use of very thin dielectric layers. As a dielectric ceramic constituting a dielectric layer of the multilayer ceramic capacitor, a perovskite-type compound is used and contains Ba and Ti (a portion of Ba can be replaced with at least one of Ca and Sr, and a portion of Ti can be replaced with Zr) as a main component, and including La within the range of 2-6 parts by mole, Mg within the range of 3-5 parts by mole, and Mn within the range of 1.5-3 parts by mole in a case where a total content of Ti and Zr is 100 parts by mole.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: October 6, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takafumi Okamoto, Noriyuki Inoue
  • Patent number: 9099244
    Abstract: A multilayer ceramic capacitor includes a multilayer body including a plurality of laminated dielectric layers and a plurality of internal electrodes arranged along interfaces between the dielectric layers, and a plurality of external electrodes located on an outer surface of the multilayer body and electrically connected to the internal electrodes. A main component of the internal electrodes is Ni, and the internal electrodes also contain Sn.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 4, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shoichiro Suzuki, Shinichi Yamaguchi
  • Patent number: 9064635
    Abstract: A dielectric ceramic material comprises a primary component of barium titanate (BaTiO3) and at least one additive component. The additive component has a mole percentage from 1% to 50% and is selected from the group consisting of lithium tantalite [lithium tantalate (LiTaO3)], barium cerate (BaCeO3), sodium metaniobate [sodium niobate (NaNbO3)] and the combinations thereof.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: June 23, 2015
    Assignee: HOLY STONE ENTERPRISE CO., LTD.
    Inventors: Sea-Fue Wang, Yuan-Cheng Lai, Jian-Hua Li, Ming-Hua Chen
  • Patent number: 9064638
    Abstract: A dielectric ceramic enabling low-temperature firing and exhibiting good dielectric characteristics, and a stack ceramic electronic component using the same are provided. The dielectric ceramic containing (Ba1-x-yCaxSry)m(Ti1-zZrz)O3 (1.005?m?1.2, 0?x+y?0.2, and 0?z?0.2) as a major component and an amount of Bi relative to 100 parts by mol of the major component which is 1.0 part by mol or more and 40 parts by mol or less.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 23, 2015
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoichiro Suzuki, Masanori Nakamura, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota, Masahiro Otsuka
  • Patent number: 9018118
    Abstract: A liquid composition is provided for forming a thin film in the form of a mixed composite metal oxide in which a composite oxide B containing copper (Cu) and a composite oxide C containing manganese (Mn) are mixed into a composite metal oxide A represented with the general formula: Ba1-xSrxTiyO3, wherein the molar ratio B/A of the composite oxide B to the composite metal oxide A is within the range of 0.002<B/A<0.05, and the molar ratio C/A of the composite oxide C to the composite metal oxide A is within the range of 0.002<C/A<0.03.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: April 28, 2015
    Assignees: Mitsubishi Materials Corporation, STMicroelectronics(Tours) SAS
    Inventors: Toshiaki Watanabe, Hideaki Sakurai, Nobuyuki Soyama, Guillaume Guegan
  • Patent number: 8968609
    Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material comprises a composition that is selected from the family of (Ba,Sr)TiO3 or CaCu3Ti4O12. The compositions of the (Ba,Sr)TiO3 include the materials such as Ca1-x-yBaxSryTi1-zCrzO3-?Np, wherein 0<x<1; 0<y<1; 0?z?0.01; 0???1; and 0?p?1. The compositions of the CaCu3Ti4O12 include the materials such as Ca1-x-yBaxSry (Ca1-zCuz)Cu2Ti4-?Al?O12-0.5?, wherein 0?x<0.5; 0?y<0.5; 0?z?1; and 0???0.1.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 3, 2015
    Assignee: General Electric Company
    Inventors: Kalaga Murali Krishna, Jay Chakraborty, Lohit Matani, Adnan Kutubuddin Bohori, Suma Memana Narayana Bhat, Somakumar Ramachandrapanicker
  • Patent number: 8968603
    Abstract: A dielectric material is provided. The material includes Ca1-x-yBaxSryTi1 -zCrzO3-?Ap, wherein A is nitrogen, fluorine, or combinations thereof; x and y can vary between the value of zero and one such that 0<x<1 and 0<y<1; z can vary between the value of zero and 0.01 such that 0?z?0.01; and ? and p can vary between the value of zero and one such that 0???1 and 0?p?1, with a proviso that z and p are not simultaneously zero. A dielectric component including the dielectric material and a system including the dielectric component are provided.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 3, 2015
    Assignee: General Electric Company
    Inventors: Kalaga Murali Krishna, Lohit Matani
  • Patent number: 8962506
    Abstract: There is provided a dielectric composition, including: a base powder including BamTiO3, where 0.995?m?1.010; a first subcomponent including 0.1 to 1.0 at % (x) of an oxide or carbonate containing at least one variable-valence acceptor element based on 100 moles of the base powder; a second subcomponent including 0.01 to 3.0 at % (y) of an oxide or carbonate containing at least one fixed valence acceptor element; a third subcomponent including an oxide or carbonate containing cerium (z) at % and at least one other rare-earth element (w) at %, where 0.01?z?x+4y and 0.01?z+w?x+4y; a fourth subcomponent including at least one of an oxide or carbonate containing at least one of Barium, Calcium, Aluminum, and Silicon and glass containing silicon; and a fifth subcomponent including 0.01 to 10.0 at % of an oxide containing zirconium.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 24, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kyu Ree Kim, Seok Hyun Yoon, Sun Ho Yoon, Chang Hoon Kim
  • Patent number: 8946104
    Abstract: A dielectric ceramic whose primary component is an ABO3 compound (A contains Ba and B contains Ti) has a per-layer thickness of approx. 0.5 ?m or less, where the volume ratio to all dielectric sintered grains of those whose grain size is in a range of 0.02 ?m to 0.15 ?m is adjusted to a grain size distribution of 1% to 10%. High dielectric constant and high reliability can be achieved at the same time with the dielectric ceramic.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: February 3, 2015
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Yukihiro Konishi, Yusuke Kowase, Kazumichi Hiroi, Kotaro Mizuno, Ayumu Sato
  • Patent number: 8916489
    Abstract: A dielectric ceramic composition for multilayer ceramic capacitor (MLCC) includes a first component of 91 to 98 wt % and a second component of 2 to 9 wt %, wherein the first component includes a main component BaTiO3 of 94 to 98 wt %, a first subcomponent of 0.5 to 2 wt % including a glass powder having a network structure, and a second subcomponent of 1 to 4 wt % including at least one of MgO, Cr2O3 and Mn3O4, and the second component includes (Ba1-y-xCaySrx)(ZryTi1-y)O3, and x satisfies 0.2?x?0.8 and y satisfies 0.03?y?0.15.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: December 23, 2014
    Assignee: Samhwa Capacitor Co., Ltd.
    Inventors: Young Joo Oh, Jung Rag Yoon, Byong Chul Woo
  • Patent number: 8908353
    Abstract: A laminated ceramic capacitor has multiple layered dielectric ceramic layers of a dielectric ceramic constituted by primary phase grains whose primary component is BaTiO3, secondary phase grains containing at least Re (Re represents at least one of Eu, Gd, Dy, Ho, Er, Yb, and Y), Ba, and Ti, and grain boundary phase containing at least one of B and Li or both; and internal electrodes which are made of Cu or Cu alloy. When a thickness of the dielectric ceramic layer is given by t, and when grain sizes at cumulative 20%, cumulative 50%, and cumulative 95% points of a cumulative count distribution of the primary phase grains are given by D20, D50, and D95, respectively, D20?D50×70%, D50?t/4, D95?t/2, and CV value ((standard deviation between D20 and D95)/D50)<40% are satisfied.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 9, 2014
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Kenji Takashima, Shinsuke Takeoka
  • Patent number: 8906818
    Abstract: Dielectric compositions that include compound of the formula [(M?)1?x(A?)x][(M?)1?y?z,(B?)y(C?)z]O3??(VO)? and protonated dielectric compositions that include a protonated dielectric compound within the formula [(M?)1?x(A?)x](M?)1?y?z(B?)y(C?)z]O3??+h(Vo)?(H•)2h are disclosed. Composite materials that employ one or more of these dielectric compounds together with an electrolyte also are disclosed. Composite material that employs one or more of these dielectric compounds together with an electrochemally active material also are disclosed.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: December 9, 2014
    Assignees: Recapping, Inc., Penn State Research Foundation
    Inventors: Clive A. Randall, Leslie E. Cross, Aram Yang, Niall J. Donnelly, Ramakrishnan Rajagopalan, Amanda Lou Baker
  • Patent number: 8853116
    Abstract: A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: October 7, 2014
    Assignee: EEStor, Inc.
    Inventors: Richard D. Weir, Carl W. Nelson
  • Patent number: 8841226
    Abstract: A dielectric ceramic composition includes a component represented by composition formula {?(xBaO.yNd2O3.zTiO2)+?(2MgO.SO2)} as a main component and zinc oxide, boron oxide, and a glass having a softening point equal to or lower than a certain temperature as minor components with respect to the main component. In the dielectric ceramic composition, x, y, and z that respectively represent molar ratios of BaO, Nd2O3, and TiO2 are in certain ranges and ? and ? that represent volume ratios of subcomponents (xBaO.yNd2O3.zTiO2 and 2MgO.SiO2) in the main component are in certain ranges. When the minor components are respectively represented by aZnO, bB2O3, and cglass, a, b, and c that represent mass ratios of the respective minor components to the main component are in certain ranges.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: September 23, 2014
    Assignee: TDK Corporation
    Inventors: Raitarou Masaoka, Toshio Sakurai, Tomohiro Arashi, Kyung-Ku Choi, Kiyoshi Hatanaka
  • Patent number: 8841225
    Abstract: A dielectric ceramic that includes a sintered body of BaTiO3 based ceramic grains, in which the ceramic grains each include a shell part as a surface layer part and a core part inside the shell part. The ceramic grains contain, as accessory constituents, R (R, which is a rare-earth element, is at least one selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Y) and M (M is at least one selected from the group consisting of Mg, Mn, Ni, Co, Fe, Cr, Cu, Al, Mo, W, and V). R and M are present in the shell part of the ceramic grain, and concentrations of R and M contained in the shell part are increased from a grain boundary toward the core part.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: September 23, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tomomi Koga, Koichi Banno
  • Publication number: 20140240896
    Abstract: A multilayer ceramic composition showing good characteristics, even when electric intensity on dielectric layers is high and a stacked number of a multilayer ceramic capacitor is increased, and an electronic device thereof. Said composition comprises: a perovskite compound ABO3, and with respect to 100 moles of said compound, 0.6 or more to 1.4 or less moles of Ra2O3 in which Ra is at least one of Dy, Gd and Tb, 0.2 or more to 0.7 or less moles of Rb2O3 in which Rb is at least one of Ho and Y, and 0.2 or more to 0.7 or less moles of Rc2O3 in which Rc is at least one of Yb and Lu, in terms of each oxide, 0.6 or more to 1.6 or less moles of Mg oxide in terms of Mg, and 0.6 or more to less than 1.2 moles of Si included compound in terms of Si.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: TDK Corporation
    Inventors: Nobuto MORIGASAKI, Takashi SASAKI, Tomohisa FUKUOKA, Yuhta MATSUNAGA, Kazuhiro KOMATSU
  • Publication number: 20140171289
    Abstract: A voltage nonlinear resistor ceramic composition comprises zinc oxide, with respect to 100 mol of said zinc oxide, 0.30 to 10 mol of Co oxide in terms of Co, 0.10 to 10 mol of R oxide (note that R is at least one selected from a group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) in terms of R, 0.10 to 5 mol of Cr oxide in terms of Cr, 0.10 to 5 mol of oxide of at least one selected from Ca and Sr respectively in terms of Ca or Sr, 0.0005 to 5 mol of oxide of at least one selected from Al, Ga and In respectively in terms of Al, Ga or In, and 0.10 to 5 mol of barium titanate in terms of BaTiO3.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 19, 2014
    Applicant: TDK Corporation
    Inventors: Takahiro ITAMI, Naoyoshi Yoshida, Kaname Ueda
  • Patent number: 8748329
    Abstract: A dielectric ceramic composition that contains, as its main constituent, (Ba1-x-yCaxSry)(Ti1-z-wZrzHfw)O3 (in the formula, 0?x+y?0.2, 0?z+w?0.1), and contains CuO and Bi2O3, and the dielectric ceramic composition has a feature that the total content of the CuO and Bi2O3 is 10 parts by weight or more with respect to 100 parts by weight of the main constituent, and the molar ratio CuO/(CuO+Bi2O3) is 0.5 or less.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 10, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masanori Nakamura, Masahiro Otsuka, Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
  • Patent number: 8715575
    Abstract: This invention relates to a method of making lead-free piezoelectric ceramic films. Specifically, the invention is directed to a method for fabricating lead-free piezoelectric free standing films having enhanced piezoelectric properties. The films may be used for a number of applications including incorporation in microelectronic devices such as energy harvesting devices and sensor technologies.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: May 6, 2014
    Assignee: Drexel University
    Inventors: Wei-Heng Shih, Wan Y. Shih, Huidong Li
  • Patent number: 8673799
    Abstract: A dielectric ceramic composition comprises barium titanate as a main component, and as subcomponents, 1.00 to 2.50 moles of an oxide of Mg, 0.01 to 0.20 mole of an oxide of Mn and/or Cr, 0.03 to 0.15 mole of an oxide of at least one element selected from a group consisting of V, Mo and W, 0.20 to 1.50 mole of an oxide of R1 where R1 is at least one selected from a group consisting of Y and Ho, 0.20 to 1.50 mole of an oxide of R2 where R2 is at least one selected from a group consisting of Eu, Gd and Tb and 0.30 to 1.50 mole of an oxide of Si and/or B, in terms of each oxide with respect to 100 moles of the barium titanate.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 18, 2014
    Assignee: TDK Corporation
    Inventors: Jun Sato, Fumiaki Satoh, Saori Takeda, Masakazu Hosono
  • Patent number: 8673798
    Abstract: A dielectric ceramic and a laminated ceramic capacitor using the dielectric ceramic are achieved which provide favorable thermal shock resistance without damaging properties or characteristics such as dielectric properties, insulation properties, temperature characteristics, and characteristics in high temperature loading, even when the dielectric layers are reduced in thickness and the number of stacked layers increased. The dielectric ceramic contains, as its main constituent, a barium titanate based compound represented by the general formula ABO3, and a crystalline oxide containing Al, Mg, and Si is present as secondary phase grains in the dielectric ceramic.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 18, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Tomoyuki Nakamura
  • Patent number: 8652984
    Abstract: A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 18, 2014
    Assignee: TDK Corporation
    Inventors: Makoto Endo, Osamu Kido, Hirobumi Tanaka, Taisuke Masuko, Yusuke Sato
  • Patent number: 8638544
    Abstract: There are provided a reduction-resistant dielectric composition and a ceramic electronic component including the same. The reduction-resistant dielectric composition may include a BaTiO3-based matrix powder, 0.1 to 1.0 moles of a transition metal oxide or transition metal carbonates, based on 100 moles of the matrix powder, and 0.1 to 3.0 moles of a sintering aid including silicon oxide (SiO2). The ceramic electronic component including the reduction-resistant dielectric composition may have a high capacitance and superior reliability.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: January 28, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Hyun Yoon, Sung Hyung Kang, Ji Young Park, Kang Heon Hur, Sang Hoon Kwon
  • Publication number: 20140002955
    Abstract: A dielectric ceramic composition is represented by BaTiO3+aRe2O3+bMnO+cV2O5+dMoO3+eCuO+fB2O3+gLi2O+xSrO+yCaO (wherein Re represents one or more elements selected from among Eu, Gd, Dy, Ho, Er, Yb, and Y; and a-h each represents the mole number of each component with respect to 100 mol of the main component that is composed of BaTiO3). When the molar ratio of (Ba+Sr+Ca)/Ti contained in the dielectric ceramic composition is represented by m, the 0.10?a?0.50, 0.20?b?0.80, 0?c?0.12, 0?d?0.07, 0.04?c+d?0.12, 0?e?1.00, 0.50?f?2.00, 0.6?(100(m?1)+2g)/2f?1.3, and 0.5?100(m?1)/2g?5.1 are satisfied.
    Type: Application
    Filed: September 26, 2011
    Publication date: January 2, 2014
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Shinsuke Takeoka
  • Patent number: 8609564
    Abstract: A method for manufacturing a laminated ceramic capacitor by firing a laminated body which includes dielectric ceramic layers containing a dielectric ceramic raw material powder and internal electrodes. The firing is carried out in accordance with a temperature profile in which the average rate of temperature rise is 40° C./second or more from room temperature to a maximum temperature. The dielectric ceramic raw material powder contains a BaTiO3 system as its main constituent, and contains R (R is Sc, etc.), M (M is Mn, etc.), and Mg as accessory constituents, in which, when the total amount of the accessory constituents contained is denoted by D parts by mol with respect to 100 parts by mol of the main constituent, an the specific surface area of the main constituent is denoted by E m2/g, then D/E is 0.2 to 0.8.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: December 17, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Makoto Matsuda, Tomoyuki Nakamura