Barium Titanate Patents (Class 501/137)
  • Patent number: 11948747
    Abstract: A dielectric body includes a plurality of crystal grains of which a main component is barium titanate, and an additive including Zr, Eu and Mn. At least one of the plurality of crystal grains has a core-shell structure having a core and a shell. A Zr/Ti atomic concentration ratio is 0.02 or more and 0.10 or less. An Eu/Ti atomic concentration ratio is 0.001 or more and 0.03 or less. A Mn/Ti atomic concentration ratio is 0.005 or more and 0.05 or less. A total atomic concentration of the one or more rare elements is smaller than an atomic concentration of Eu when the dielectric body has the one or more rare earth elements. A median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 2, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yuji Tsushima, Koichiro Morita
  • Patent number: 11915880
    Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers, side margin portions disposed on the body, and external electrodes disposed on the body. The reliability of the multilayer electronic component is improved by controlling the contents of Si for each position of the dielectric layer and the side margin portion.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hee Sun Chun, Hyoung Uk Kim, Jae Sung Park, Hyeg Soon An, Ku Tak Lee, Eun Ha Jang
  • Patent number: 11901127
    Abstract: A dielectric composition and a multilayer capacitor including the same are provided. The dielectric composition includes a BaTiO3-base main component, a first subcomponent including an Nb component and a Gd component, a second subcomponent including an Mg component, and a third subcomponent including a Ba component and a Ca component. The first subcomponent is included in an amount of 4 moles or less per 100 moles of the main component. In the first subcomponent, a molar content of Nb and a molar content of Gd satisfy 0.33?Nb/Gd, and in the third subcomponent, a molar content of Ba and a molar content of Ca satisfy 0.2?Ca/(Ba+Ca).
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: February 13, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Sung Park, Jeong Yun Park, Hyoung Uk Kim, Jong Han Kim, Chung Eun Lee
  • Patent number: 11894194
    Abstract: A dielectric composition includes a dielectric grain including a perovskite compound and a first segregation phase including at least Ca, Al, Si, and O.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: February 6, 2024
    Assignee: TDK CORPORATION
    Inventors: Toshihiro Iguchi, Tomoaki Nonaka, Takeshi Shouji
  • Patent number: 11869720
    Abstract: A dielectric composition includes one of BaTiO3, (Ba,Ca)(Ti,Ca)O3, (Ba,Ca)(Ti,Zr)O3, Ba(Ti,Zr)O3 and (Ba,Ca)(Ti,Sn)O3, as a main component, a first subcomponent including a rare earth element, and a second subcomponent including at least one of a variable valence acceptor element and a fixed valence acceptor element. When a sum of contents of the rare earth element is defined as DT and a sum of contents of the variable valence acceptor element and the fixed valence acceptor element is defined as AT, (DT/AT)/(Ba+Ca) satisfies more than 0.5 and less than 6.0. In addition, a multilayer electronic component including the dielectric composition is provided.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Sung Park, Hyoung Uk Kim, Hyung Soon Kwon, Jong Han Kim, Jeong Ryeol Kim
  • Patent number: 11869926
    Abstract: Provided is a semiconductor device including a lower electrode, an upper electrode isolated from direct contact with the lower electrode, and a dielectric layer between the lower electrode and the upper electrode, the dielectric layer comprising a first metal oxide area, a second metal oxide area, and a third metal oxide area. The third metal oxide area is between the first metal oxide area and the second metal oxide area, and includes boron and one or more metal elements selected from aluminum (Al), magnesium (Mg), silicon (Si), or beryllium (Be). In the third metal oxide area, a content of boron (B) is less than or equal to a content of the metal elements of Al, Mg, Si, and/or Be.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: January 9, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeonggyu Song, Younsoo Kim, Jooho Lee, Narae Han
  • Patent number: 11862399
    Abstract: A multilayer electronic component according to some embodiments of the present disclosure includes: a body including a dielectric layer and an internal electrode alternately disposed with the dielectric layer; and an external electrode disposed on the body, wherein a ratio of the number of dielectric grains having a size of 100 to 250 nm included in the dielectric layer is 55% or more with respect to a total number of the dielectric grains included in the dielectric layer.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyung Sik Kim, Jong Hwan Lee, Jeong Yun Park, Tae Young Ham, In Tae Seo, Jae Sung Park
  • Patent number: 11854743
    Abstract: A dielectric composition includes main-phase particles each including a main component having a perovskite crystal structure represented by a general formula of ABO3. At least a part of the main-phase particles has a core-shell structure. The dielectric composition includes RA, RB, M, and Si. Each of A, B, RA, RB, and M is one or more elements selected from a specific element group. SRA/SRB>CRA/CRB is satisfied, where CRA is an RA content (mol %) to the main component in terms of RA2O3, and CRB is an RB content (mol %) to the main component in terms of RB2O3, in the dielectric composition, and SRA is an average RA content (mol %), and SRB is an average RB content (mol %), in a shell part of the core-shell structure.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Taku Murakami, Nobuto Morigasaki, Takuma Ariizumi, Toshihiko Kaneko, Yasuhiro Ito
  • Patent number: 11830678
    Abstract: A ceramic electronic component includes a body including a dielectric layer and internal electrodes; and external electrodes disposed on the body and connected to the internal electrodes. The dielectric layer includes a plurality of grains and a grain boundary disposed between adjacent grains, and GB1/G1 is 5 or more in mass ratio, where G1 is a content of Si of one of the plurality of grains and GB1 is a content of Si of the grain boundary.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ji Su Hong, Seung In Baik, Eun Ha Jang, Hee Sun Chun, Jae Sung Park
  • Patent number: 11819702
    Abstract: Disclosed herein are perovskite materials and methods of making an use thereof.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: November 21, 2023
    Assignee: NORTH CAROLINA STATE UNIVERSITY
    Inventors: Paul A. Maggard, Jr., Shaun O'Donnell, Jacob L. Jones
  • Patent number: 11817264
    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: January 27, 2021
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Du Won Choi, Ji Hong Jo, Seok Kyoon Woo
  • Patent number: 11594373
    Abstract: A multilayer electronic component that includes a plurality of stacked dielectric layers, each of the plurality of stacked dielectric layers having a plurality of crystal grains, at least some of the plurality of crystal grains having a trap portion therein, and at least one element selected from the group consisting of Ni, Cu, Pt, Sn, Pd and Ag is present locally in the trap portion; and a plurality of internal electrode layers arranged between adjacent dielectric layers of the plurality of stacked dielectric layers.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: February 28, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideyuki Hashimoto, Kenji Ueno
  • Patent number: 11551869
    Abstract: A multilayer electronic component that includes a plurality of stacked dielectric layers, each of the plurality of stacked dielectric layers having a plurality of crystal grains, at least some of the plurality of crystal grains having a trap portion therein, and at least one element selected from the group consisting of Ni, Cu, Pt, Sn, Pd and Ag is present locally in the trap portion; and a plurality of internal electrode layers arranged between adjacent dielectric layers of the plurality of stacked dielectric layers.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 10, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideyuki Hashimoto, Kenji Ueno
  • Patent number: 11538631
    Abstract: A dielectric composition includes a main ingredient having a perovskite structure represented by ABO3, where A is at least one of Ba, Sr, and Ca and B is at least one of Ti, Zr, and Hf, and a first accessory ingredient. The first accessory ingredient comprises 0.1 mole or more of a rare earth element, 0.02 mole or more of Nb, and 0.25 mole or more and 0.9 mole or less of Mg, a sum of contents of the rare earth element and Nb is 1.5 mole or less.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Young Ham, Ji Hong Jo, Seung In Baik, Hyung Soon Kwon
  • Patent number: 11522694
    Abstract: The present invention is a diverse acoustical object containing a range of particles that have acoustical wave impedances that are substantially different from the binder. The particles create a substantially different reflection as an acoustic wave is scattered by the particles. A negative reflection is created when the scattered wave is from a particle that has a wave impedance that is substantially less than the binder impedance. Practically, it may be necessary to encase this material in a thin material that will withstand the fabrication process (e.g., air or silicone elastomer could be encased in glass). If the wavelength is large compared to the encasing material thickness, then the reflection will be more dependent on the interior material. A mixture of materials that generate positive as well as negative reflections within the binder would add to the complexity of the PUF.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: December 6, 2022
    Assignee: Lexmark International, Inc.
    Inventors: Scott Richard Castle, Alexander Lloyd Chapman, Keith Bryan Hardin
  • Patent number: 11515092
    Abstract: A multilayer electronic component that includes a plurality of stacked dielectric layers, each of the plurality of stacked dielectric layers having a plurality of crystal grains, at least some of the plurality of crystal grains having a trap portion therein, and at least one element selected from the group consisting of Ni, Cu, Pt, Sn, Pd and Ag is present locally in the trap portion; and a plurality of internal electrode layers arranged between adjacent dielectric layers of the plurality of stacked dielectric layers.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 29, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideyuki Hashimoto, Kenji Ueno
  • Patent number: 11469874
    Abstract: Certain aspects of the present disclosure provide systems and techniques for full-duplex communication. A first system is characterized by techniques for communicating in full-duplex utilizing the Butler matrix beamformer for generating a spatial beam to be used for both uplink and downlink signaling, wherein the signaling utilizes the same time and frequency resources. A second system is characterized by techniques for communicating in full-duplex utilizing the Butler matrix beamformer to generate two spatial beams, one to be used for downlink and one to be used for uplink signaling, wherein the signaling utilizes the same time and frequency resources. Accordingly, the systems and techniques described herein are directed to low complexity, multi-user full-duplex communications.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: October 11, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Raju Hormis, Navid Abedini, Junyi Li, Juergen Cezanne, Ozge Koymen
  • Patent number: 11373805
    Abstract: An Mn/Ti peak intensity ratio in a dielectric ceramic layer in an end surface outer layer portion is within two times to fifteen times of the Mn/Ti peak intensity ratio in a central portion, a rare earth element/Ti peak intensity ratio in the dielectric ceramic layer in the end surface outer layer portion is within two times to seven times the rare earth element/Ti peak intensity ratio in the central portion, an Si/Ti peak intensity ratio in the dielectric ceramic layer in a side surface outer layer portion is within two times to five times the Si/Ti peak intensity ratio in the central portion, and the rare earth element/Ti peak intensity ratio in the dielectric ceramic layer in the side surface outer layer portion is within two times to seven times the rare earth element/Ti peak intensity ratio.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 28, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takehisa Sasabayashi, Yasuyuki Shimada, Naoto Muranishi, Shinichi Kokawa
  • Patent number: 11367571
    Abstract: A dielectric composition includes a main phase and a Ca—Zr—Si—O segregation phase. The main phase includes a main component expressed by ABO3. “A” includes at least one selected from calcium and strontium. “B” includes at least one selected from zirconium, titanium, hafnium, and manganese. The Ca—Zr—Si—O segregation phase includes at least calcium, zirconium, and silicon. The Ca—Zr—Si—O segregation phase includes 0.12-0.50 parts by mol of zirconium, provided that a total of calcium, strontium, silicon, and zirconium included in the Ca—Zr—Si—O segregation phase is 1 part by mol.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 21, 2022
    Assignee: TDK CORPORATION
    Inventor: Toshihiro Iguchi
  • Patent number: 11292747
    Abstract: The present application relates to a barium strontium titanate-based dielectric ceramic material, a preparation method, and application thereof. The composition of the barium strontium titanate-based dielectric ceramic material comprises: aBaTiO3+bSrTiO3+cTiO2+dBi2O3+eMgO+fAl2O3+gCaO+hSiO2, wherein a, b, c, d, e, f, g, and h are the molar percentage of each component, 20?a?50 mol %, 15?b?30 mol %, 10?c?20 mol %, 0?d?10 mol %, 0?e?35 mol %, 0?f?6 mol %, 0?g?6 mol %, 0?h?1 mol %, and a+b+c+d+e+f+g+h=100 mol %.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: April 5, 2022
    Assignee: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Ying Chen, Xianlin Dong, Xin Li, Feng Jiang, Yongjian Wang
  • Patent number: 10923279
    Abstract: A multilayer ceramic electronic component includes a laminate, a first external electrode on a first end surface of the laminate, and a second external electrode on a second end surface of the laminate. The laminate includes a central layer portion in which each first internal electrode layer and each second internal electrode layer oppose each other with a dielectric ceramic layer therebetween, peripheral layer portions sandwiching the central layer portion in a lamination direction, and side margins sandwiching the central layer portion and the peripheral layer portions in a width direction. The side margins each include an inner layer disposed closest to the laminate, an outer layer disposed farthest from the laminate, and a buffer layer disposed between the inner layer and the outer layer.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: February 16, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Daiki Fukunaga
  • Patent number: 10903013
    Abstract: A dielectric powder includes a core-shell structure including a core region formed in an inner portion thereof and a shell region covering the core region. The core region includes barium titanate (BaTiO3) doped with a metal oxide, and the shell region is formed of a ferroelectric material.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chang Hwa Park, Jin Woo Kim, Min Gi Sin, Byung Hyun Park, Chin Mo Kim
  • Patent number: 10343930
    Abstract: The present invention relates to the dielectric composition including barium titanate, strontium titanate, titanium oxide and bismuth oxide. In case when the content of barium titanate, converted to BaTiO3, is a mol %, the content of strontium titanate, converted to SrTiO3, is b mol %, the content of titanium oxide and bismuth oxide, converted to Bi2Ti3O9, is c mol %, and a+b+c=100, a, b and c are values within a scope surrounded by the following four points, i.e. point A, point B, point C and point D in a three-dimensional phase diagram. Point A: (a, b, c)=(52.1, 40.0, 7.9); point B: (a, b, c)=(86.5, 5.6, 7.9); point C: (a, b, c)=(91.0, 5.6, 3.4); point D: (a, b, c)=(56.6, 40.0, 3.4).
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 9, 2019
    Assignees: TDK CORPORATION, TDK XIAMEN CO., LTD.
    Inventors: Guibin Ge, RuiLun Zhang, Fan Zhang, Jintao Huang, Kazuya Muto, Daisuke Ohtsu, Kakeru Watanabe
  • Patent number: 9974708
    Abstract: A rollator is disclosed, including first and second upright members, each including handle portions, wheels, hinges disposed between the wheels and the handle portions, channels disposed along the upright members between the hinges and the wheels, and lateral hinges orthogonal to the hinges. First and second foldable support members having wheels are attached to the hinges. At least one lateral support member is disposed between and attached to the lateral hinges, and includes an intermediate hinge. Brake systems include brake lines communicating between brake controls and brakes. In a reversible storage configuration, the foldable support members are rotated to be at least partially disposed in the channels, and the lateral hinges and intermediate hinge rotate to collapse the lateral support member, bringing the upright members with the folded foldable support members adjacent to one another.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: May 22, 2018
    Assignee: More Joyful Living, LLC
    Inventors: Jane Leader Janeczek, Theodore Janeczek, David Celento
  • Patent number: 9842696
    Abstract: There are provided a composite perovskite powder, a preparation method thereof, and a paste composition for an internal electrode having the same, the composite perovskite powder capable of preventing ions from being eluted from an aqueous system at the time of synthesis while being ultra-atomized, such that when the composite perovskite powder is used as an inhibitor powder for an internal electrode, sintering properties of the internal electrode may be deteriorated, and sintering properties of a dielectric material may be increased; accordingly, connectivity of the internal electrode may be improved, and permittivity and reliability of a multilayer ceramic capacitor (MLCC) may be increased.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 12, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kum Jin Park, Chang Hak Choi, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo
  • Patent number: 9708222
    Abstract: A low-temperature sintering dielectric composition contains barium titanate (BaTiO3) as a main ingredient and accessory ingredients including 1.0 to 2.0 mol % of barium carbonate (BaCO3), 0.5 to 1.0 mol % of at least one rare earth oxide selected from the group consisting of Y2O3, Ho2O3, Dy2O3, and Yb2O3, 0.1 to 1.0 mol % of manganese oxide (MnO), and 1.0 to 2.0 mol % of borosilicate based glass, based on 100 mol % of the main ingredient.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Min Hee Hong
  • Patent number: 9666369
    Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor containing the same. The dielectric ceramic composition according to the present disclosure may contain a main base material ingredient and a first accessory ingredient, wherein the first accessory ingredient contains samarium (Sm) and other rare earth (RE) elements, and a ratio (a/b) of a content (a) of samarium (Sm) to a content (b) of other rare earth elements in the first accessory ingredient satisfies 0.1?a/b?2.0.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 30, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Sung Park, Chan Hee Nam, Doo Young Kim, Seok Hyun Yoon, Du Won Choi, Chang Hoon Kim
  • Patent number: 9627141
    Abstract: A ceramic multi-layer capacitor includes a main body, which has ceramic layers arranged along a layer stacking direction to form a stack, and first and second electrode layers arranged between the ceramic layers. The multi-layer capacitor also includes a first external contact-connection arranged on a first side surface of the main body and electrically conductively connected to the first electrode layers, and a second external contact-connection arranged on a second side surface (62) of the main body (2). The second side surface is situated opposite the first side surface and is electrically conductively connected to the second electrode layers.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 18, 2017
    Assignee: EPCOS AG
    Inventors: Günter Engel, Michael Schossmann, Markus Koini, Andrea Testino, Christian Hoffmann
  • Patent number: 9528009
    Abstract: A method to prepare a self-decontaminating surface, where that method includes dissolving tartaric acid in water, adding titanium (IV) isopropoxide to the tartaric acid solution to form a coating composition in water, and casting that coating composition onto a surface to form a coating having anti-microbial function.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 27, 2016
    Inventors: Craig Grossman, Mai Ngo, Ronald Wysocki
  • Patent number: 9382162
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein, when an imaginary line is drawn in a direction from a center of the dielectric grain to a grain boundary thereof, a content of rare earth elements in a region corresponding to 0.75 to 0.95% of the dielectric grain from the center of the dielectric grain may be 0.5 to 2.5 at %, based on 100 at % of a B-site ion, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 5, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung Kang, Doo Young Kim, Chang Hak Choi
  • Patent number: 9130168
    Abstract: A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 ?m or more and 300 ?m or less and crystal grains B having an equivalent circular diameter of 0.5 ?m or more and 3 ?m or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: September 8, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Kubota, Tatsuo Furuta, Hiroshi Saito, Toshihiro Ifuku, Kenichi Takeda, Tetsuro Fukui
  • Patent number: 9036331
    Abstract: There is provided a dielectric composition including: a base powder including BaTiO3; a first accessory component including a content (x1) of 0.1 to 1.0 at % of an oxide or a carbonate including transition metals, based on 100 moles of the base powder; a second accessory component including a content (y) of 0.01 to 3.0 at % of oxide or carbonate including a fixed valence acceptor element, based on 100 moles of the base powder; a third accessory component including an oxide or a carbonate including a Ce element (content of z at %) and at least one rare earth element (content of w at %); and a fourth accessory component including a sintering aid, wherein 0.01?z?x1+4y and 0.01?z+w?x1+4y based on 100 moles of the base powder.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 19, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Hyun Yoon, Ji Young Park, Sun Ho Yoon, Sang Hoon Kwon, Chang Hoon Kim
  • Patent number: 9023747
    Abstract: There are provided a dielectric composition and a preparation method thereof, the dielectric composition including: a first perovskite powder for a core represented by ABO3: and a second perovskite powder for a shell represented by ABO3, having an average particle diameter corresponding to ? to 1/10 of an average particle diameter of the first perovskite powder, and included in an amount of 1 to 70 parts by weight with respect to 100 parts by weight of the first perovskite powder, wherein particles of the second perovskite powder have pores having a volume fraction of 3 to 50 vol % therein. According to the present invention, there are provided a dielectric composition having excellent dielectric characteristics and electrical characteristics, and a preparation method thereof.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Hak Choi, Chang Hoon Kim, Sang Min Youn, Kwang Hee Nam, Ki Myoung Yun, Hyung Joon Jeon, Jong Hoon Yoo
  • Patent number: 9023748
    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 (LiTaO3), barium cerate (BaCeO3), sodium metaniobate (NaNbO3) and the combinations thereof.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 5, 2015
    Assignee: Holy Stone Enterprise Co., Ltd.
    Inventors: Sea-Fue Wang, Yuan-Cheng Lai, Jian-Hua Li, Ming-Hua Chen
  • 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
  • Publication number: 20150111719
    Abstract: A dielectric ceramic material includes the composite ceramic powder of BaTiO3 and Ba2LiTa5O15, or BaTiO3 and Ba2LiNb5O15 that are based on the oxides of BaO, TiO2, Li2O and Ta2O5, or BaO, TiO2, Li2O and Nb2O5 as initial powder materials prepared subject to a respective predetermined percentage. This dielectric ceramic material simply uses simple binary oxides as initial powder materials that are easy to obtain and inexpensive, and that eliminate the complicated manufacturing process of synthesizing BaTiO3, Ba2LiTa5O15 or Ba2LiNb5O15, making the whole process more simple and the manufacturing cost more cheaper and preventing the formation of other compounds.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 23, 2015
    Inventors: Sea-Fue WANG, Jian-Hua LI, Yuan-Cheng LAI, Yu-Wen HUNG, Jun-Hao DENG, Ming-Hua CHEN
  • Patent number: 9001494
    Abstract: A dielectric ceramic that contains, as its main constituent, a perovskite-type compound containing Ba and Ti, and, with respect to the Ti content of 100 parts by mole, contains Re1 (Re1 is at least one element of La and Nd) in the range of 0.15 to 3 parts by mole, Y in the range of 0.1 to 3 parts by mole, Mg in the range of 0.3 to 13 parts by mole, and Fe in the range of 0.01 to 5 parts by mole.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: April 7, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuji Kushiro, Tatsuya Ishikawa, Tomomitsu Yamanishi, Naoki Kawara
  • Publication number: 20150094199
    Abstract: A convenient and versatile method for preparing complex metal oxides is disclosed. The method uses a low temperature, environmentally friendly gel-collection method to form a single phase nanomaterial. In one embodiment, the nanomaterial consists of BaAMnBTiCOD in a controlled stoichiometry.
    Type: Application
    Filed: July 29, 2014
    Publication date: April 2, 2015
    Inventors: Stephen O'Brien, Shuangyi Liu, Limin Huang
  • 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: 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: 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
  • Publication number: 20150029637
    Abstract: There is provided a dielectric composition for low-temperature sintering including BaTiO3 as a main ingredient, and xB2O3-(1-x)BaOas an accessory ingredient, wherein x ranges from 0.25 to 0.8, and the content of the accessory ingredient ranges from 0.1 to 2.00 mol %, based on 100 mol % of the main ingredient.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 29, 2015
    Inventors: Jong Bong LIM, Seok Hyun YOON, Doo Young KIM, Sang Huk KIM
  • Patent number: 8937030
    Abstract: The present invention is directed to perovskite nanostructures of Formula ABO3, wherein A and B represent one or more metals with A having a valence lower than B, to methods of making the perovskite nanostructures of Formula ABO3 comprising their synthesis within and precipitation from reverse micelles, and the use of the perovskite nanostructures of Formula ABO3 as capacitors, and their use in dynamic random access memory, electromechanics, and non-linear optics.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: January 20, 2015
    Assignee: Research Foundation of the City University of New York
    Inventors: Kai Su, Nan-Loh Yang
  • Publication number: 20150016017
    Abstract: A dielectric composition may include a first dielectric powder; and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder, and a multilayer ceramic capacitor formed using the same. A multilayer ceramic capacitor may include: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body to face each other with the respective dielectric layers interposed therebetween; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively. The dielectric layers are formed of a dielectric composition including a first dielectric powder and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 15, 2015
    Inventors: Jae Sung PARK, Sang Hyuk KIM, Chan Hee NAM, Chang Hoon KIM, Seok Hyun YOON, Doo Young KIM
  • Publication number: 20150009604
    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: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Inventors: Sea-Fue WANG, Yuan-Cheng LAI, Jian-Hua LI, Ming-Hua CHEN
  • Publication number: 20140378295
    Abstract: The present invention aims to provide an amorphous dielectric film and an electronic component in which the relative permittivity and the temperature coefficient of electrostatic capacitance can be maintained and the withstand voltage can be increased even if the dielectric film is further thinned. The amorphous dielectric film of the present invention is characterized in that it is a dielectric film composed of an amorphous composition with A-B—O as the main component, wherein A contains at least two elements selected from the group consisting of Ba, Ca and Sr, and B contains Zr. When the main component of the dielectric film is represented by (BaxCaySrz)?—B—O, x, y and z meet the conditions of 0?x?1, 0?y?1, 0?z?1, respectively, x+y+z=1 and at least any two of x, y and z are 0.1 or more. When A/B is represented by ?, 0.5???1.5.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Toshihiko KANEKO, Saori TAKEDA, Yuki YAMASHITA, Junichi YAMAZAKI
  • 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: 8889776
    Abstract: The present invention relates to composite materials with a high dielectric constant and high dielectric strength and to methods of producing the composite materials. The composite materials have high dielectric constants at a range of high frequencies and possess robust mechanical properties and strengths, such that they may be machined to a variety of configurations. The composite materials also have high dielectric strengths for operation in high power and high energy density systems. In one embodiment, the composite material is composed of a trimodal distribution of ceramic particles, including barium titanate, barium strontium titanate (BST), or combinations thereof and a polymer binder.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 18, 2014
    Assignee: The Curators of the University of Missouri
    Inventors: Randy D. Curry, Kevin O'Connor
  • Publication number: 20140336035
    Abstract: An insulator for spark plug with a main constituent of alumina and containing silicon includes a grain boundary phase positioned between alumina particles. The grain boundary phase contains: a group 2A element; a rare earth element; and at least one kind of zirconium, titanium, chrome, niobium, manganese, and iron (a first element). Assuming that a total amount of the rare earth element is X (mass %), a total amount of the group 2A element is Y (mass %), and a total amount of the first element is Z (mass %), the following are met: 0.40?Y/X?2.00 0.10?Z/X?0.40.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Katsuya TAKAOKA, Yutaka YOKOYAMA, Kengo FUJIMURA, Hironori UEGAKI, Hiroki TAKEUCHI, Hirokazu KURONO, Toshitaka HONDA, Kuniharu TANAKA, Takeshi MITSUOKA
  • Publication number: 20140313634
    Abstract: A dielectric composition includes a base main component including Ba and Ti and an accessory component, wherein a ratio of domain width/grain size of the dielectric composition is in the range of 0 to 0.2, a multilayer ceramic capacitor using the same, and a method for manufacturing a multilayer ceramic capacitor. It is possible to provide a dielectric composition that can implement a higher dielectric constant and good high temperature withstand voltage characteristics in the same grain size condition. It is expected that this effect can be effectively applied to the development of ultra high capacity MLCCs having a thin dielectric by implementing the same capacity while increasing the thickness of the dielectric than the case of applying the conventional dielectric material.
    Type: Application
    Filed: October 3, 2013
    Publication date: October 23, 2014
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Hyun YOON, Jong Bong Lim, Jae Sung Park, Doo Young Kim, Chang Hoon Kim