Titanate Containing Patents (Class 501/136)
  • Patent number: 10246375
    Abstract: Disclosed herein are embodiments of materials having high thermal conductivity along with a high dielectric constants. In some embodiments, a two phase composite ceramic material can be formed having a contiguous aluminum oxide phase with a secondary phase embedded within the continuous phase. Example secondary phases include calcium titanate, strontium titanate, or titanium dioxide.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 2, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventor: Michael David Hill
  • Patent number: 9947470
    Abstract: A ceramic dielectric composition contains a base material powder represented by one or more of (Ca1-xSrx) (Zr1-yTiy)O3, Ca(Zr1-yTiy)O3, Sr(Zr1-xTiy)O3, (Ca1-xSrx) ZrO3, and (Ca1-xSrx)TiO3, in which x and y satisfy 0?x?1.0 and 0.2?y?0.9, respectively. The ceramic dielectric composition have on may high room-temperature permittivity and excellent ESD protection characteristics and may secure withstand voltage characteristics while implementing relatively high capacitance.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 17, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Sung Park, Seok Hyun Yoon, Chang Hoon Kim, Doo Young Kim, Soo Kyong Jo
  • Patent number: 9807897
    Abstract: An housing for electronic components, such as LEDs and/or FETs, is provided. The housing has a base body having an upper surface that at least partially defines a mounting area for an electronic functional element, such that the base body provides a heat sink for the electronic functional element. The base body has a lower surface and a lateral surface and includes a connecting body for the electronic functional element, which is joined to the base body a glass layer formed by an alkali titanium silicate glass.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: October 31, 2017
    Assignee: SCHOTT AG
    Inventors: Robert Hettler, Matthias Rindt
  • Patent number: 9755293
    Abstract: Enhanced Q high dielectric constant material for microwave applications. In some embodiments, a composition can include a material with a formula Ba4+xSm(2/3)(14?x+0.5y)Ti18?yAlyO54, with the quantity y being in a range 0<y<2, and the quantity x being in a range 0<x<2?y. Such a material can have a dielectric constant value greater than 60 and a Qf value greater than 10,000 at a frequency (f) at or less than 1 GHz. In some embodiments, a material having such properties can be implemented as a ceramic device and be utilized as a dielectric microwave resonator. Such a microwave resonator can be utilized as, for example, a narrowband radio-frequency (RF) filter.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: September 5, 2017
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael David Hill
  • Patent number: 9384894
    Abstract: A dielectric composition to be sintered at low temperature may include BaTiO3 as a major component; and (1-x)Li2O-xCuO as a minor component, wherein x is 0.1 to 0.9, and the minor component is contained in a content of 0.1 mol % to 2.0 mol % based on 100 mol % of the major component.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: July 5, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Bong Lim, Seok Hyun Yoon, Doo Young Kim, Sang Huk Kim
  • Patent number: 9287045
    Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor including the same. The dielectric ceramic composition according to embodiments of the present disclosure includes a base powder represented by xSrTiO3-(1?x)BiMO3 (M includes Mg and Ti) containing a first main component represented by SrTiO3 and a second main component represented by BiMO3, wherein x satisfies 0.5?x?0.9.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: March 15, 2016
    Assignees: SAMSUNG ELECTRO-MECHANICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Seok Hyun Yoon, Dae Ho Yoon, Suk Hyun Song, Takaki Masaki, Doo Young Kim, Sang Huk Kim, Jong Bong Lim
  • Publication number: 20150143786
    Abstract: Disclosed are ceramic bodies comprised of a tialite phase and at least one silicate phase with a rare earth oxide and zirconium additions and methods for the manufacture of the same.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 28, 2015
    Inventors: Gregory Albert Merkel, Patrick David Tepesch, Elizabeth Marie Vileno
  • Publication number: 20150136452
    Abstract: The high-withstanding-voltage member includes an alumina sintered compact containing alumina as a main crystal. Furthermore, the alumina sintered compact exhibits a peak intensity of 5000 or less at a wavelength of about 330 nm when measured by a cathode luminescence method.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Inventors: Satoshi Toyoda, Hidehiro Takenoshita
  • 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
  • Publication number: 20150102516
    Abstract: Disclosed herein are green bodies comprising at least one ceramic-forming powder; at least one binder; and at least one cross-linked starch present in an amount of at least about 20% by weight as a super addition. Further disclosed herein is a method of making a porous ceramic body comprising mixing at least one ceramic-forming powder, at least one solvent such as water, at least one binder, and at least one cross-linked starch present in an amount of about 20% by weight as a super addition to form a batch composition; extruding the batch composition to form a green body; drying the green body; and firing the green body to form a porous ceramic body. Also disclosed herein are methods of screening a green body for making a porous ceramic body.
    Type: Application
    Filed: September 12, 2014
    Publication date: April 16, 2015
    Inventors: Mark Alan Lewis, Pascale Oram, Cameron Wayne Tanner, Elizabeth Marie Vileno
  • Patent number: 8993897
    Abstract: The photosensitive resin composition contains a (A) binder polymer, (B) cross-linked polymer particles, (C) thermosetting resin, (D) photo-polymerization initiator, and a (E) phosphoric flame retardant, in which a content of the (B) cross-linked polymer particles is 30 parts by weight to 100 parts by weight with respect to the 100 parts by weight of the (A) binder polymer, and an average particle diameter of the (B) cross-linked polymer particles is 1 ?m to 10 ?m. Therefore, the photosensitive resin composition (i) obtains an excellent tack-free property after being applied and dried, (ii) can be subjected to fine processing, (iii) is formed into a cured film having excellent flexibility, flame retardancy, and electrical insulation reliability, and (iv) causes a substrate to have a small warpage after being cured.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: March 31, 2015
    Assignee: Kaneka Corporation
    Inventor: Yoshihide Sekito
  • Publication number: 20150062774
    Abstract: There are provided a dielectric ceramic composition and a multilayer ceramic capacitor including the same. The dielectric ceramic composition according to embodiments of the present disclosure includes a base powder represented by xSrTiO3-(1?x)BiMO3 (M includes Mg and Ti) containing a first main component represented by SrTiO3 and a second main component represented by BiMO3, wherein x satisfies 0.5?x?0.9.
    Type: Application
    Filed: December 3, 2013
    Publication date: March 5, 2015
    Applicants: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY, SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Hyun YOON, Dae Ho YOON, Suk Hyun SONG, Takaki MASAKI, Doo Young KIM, Sang Huk KIM, Jong Bong LIM
  • 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: 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
  • Patent number: 8921249
    Abstract: The production method of the present invention is a method for producing porous aluminum magnesium titanate by forming a mixture containing Al source powder, Mg source powder, Ti source powder and Si source powder as well as a pore-forming agent to obtain a molded body; presintering the obtained molded body; and then sintering the presintered molded body, wherein the content of the pore-forming agent to a total of 100 parts by mass for the Al source powder, Mg source powder, Ti source powder and Si source powder is 5 to 30 parts by mass, the melting point of the Si source powder is 600 to 1300° C., when the elemental composition ratio of Al, Mg, Ti and Si in the mixture is represented by compositional formula (1): Al2(1?x)MgxTi(1+x)O5+aAl2O3+bSiO2 ??(1), x satisfies 0.05?x?0.15, a satisfies 0?a?0.1 and b satisfies 0.05?b?0.15, and the presintered molded body is sintered at 1300 to 1560° C.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: December 30, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tetsuro Tohma, Kentaro Iwasaki
  • Patent number: 8920705
    Abstract: The invention is to provide a process of producing the powder of aluminum titanate-based ceramics in which the formation of fine particulate component and coarse particulate component is inhibited, and having a very sharp grain size distribution, efficiently and at good yield. The invention is a process for producing a powder of aluminum titanate-based ceramics, comprising a step of keeping a precursor mixture containing a titanium source powder, an aluminum source powder and a silicon source powder at a temperature range of from 1100° C. to 1350° C. for 3 hours or more, followed by a step of heating the precursor mixture up to 1400° C.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: December 30, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Keiichiro Suzuki, Masayuki Narumi
  • 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
  • Publication number: 20140368090
    Abstract: A piezoelectric device is provided with: a piezoelectric ceramic layer that is obtained by firing a piezoelectric ceramic composition which contains a perovskite composition and an Ag component; and a conductor layer that sandwiches the piezoelectric ceramic layer, wherein Ag is segregated in voids in a sintered body of the perovskite composition in the piezoelectric ceramic layer. The piezoelectric ceramic composition preferably contains a perovskite composition which is represented by (Pba.Rex){Zrb.Tic,.(Ni1/3Nb2/3)d.(Zn1/3Nb2/3)e}O3 (wherein Re represents La and/or Nd, and a-e and x satisfy the following conditions 0.95?a?1.05, 0?x?0.05, 0.35?b?0.45, 0.35?c?0.45, 0<d?0.10, 0.07?e?0.20 and b+c+d+e=1) and 0.05-0.3% by mass of an Ag component in terms of oxides relative to the perovskite composition.
    Type: Application
    Filed: November 27, 2012
    Publication date: December 18, 2014
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Shinichiro Ikemi, Yutaka Doshida
  • Patent number: 8906272
    Abstract: An infra-red reflective material is a perovskite-like multiple oxide which includes at least an alkaline-earth metal and at least one type of element selected from a group of titanium, zirconium and niobium, and further, if necessary, manganese and/or iron, an element belonging to the IIIa group of the periodic table such as aluminum and gallium, etc., or zinc, etc., has sufficient infra-red reflective power, is excellent in thermal stability and heat resistance, and does not raise concerns on safety and environmental issues. The infra-red reflective material can be produced by, for example, mixing an alkaline-earth metal compound and a titanium compound and further, if necessary, a manganese compound and/or an iron compound, a compound belonging to the IIIa group of the periodic table, or a zinc compound in predetermined amounts, and firing the mixture.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: December 9, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Yoichi Takaoka, Norihiko Sanefuji, Emi Ohta
  • 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
  • Patent number: 8889030
    Abstract: A ternary polycrystalline material based on lead hafnate (PbHfO3) and having improved dielectric, piezoelectric, and/or thermal stability properties. The Pb(Hf,Ti)O3 based material can exhibit enhanced electromechanical coupling factors when compared to PZT based ceramics and can be used as high performance actuators, piezoelectric sensors and/or ultrasonic transducers. The ternary polycrystalline material can have a perovskite crystal structure with an ABO3 formula and can be characterized by a substitution of heterovalent acceptor and donor ions at A or B (Zr/Hf) sites.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: November 18, 2014
    Assignee: The Penn State Research Foundation
    Inventors: Shujun Zhang, Dawei Wang, Mingfu Zhang, Shiyi Guo, Thomas R. Shrout
  • 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: 20140309100
    Abstract: A method for preparing ceramic powders in the presence of a carbon powder including a step which consists in homogenizing a mixture of particles capable of resulting in a ceramic by heat treatment. Said method can be carried out in the presence of an accelerated solvent and provides, at reduced energy consumption, carbon-coated ceramic powders and then ceramics.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: KARIM ZAGHIB, ABDELBAST GUERFI, MICHEL ARMAND, PATRICK CHAREST
  • 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: 8853114
    Abstract: The invention is to provide an aluminum titanate-based ceramics showing a good mechanical strength. The invention is an aluminum titanate-based ceramics obtained by firing a starting material mixture which contains a titanium element and an aluminum element, and further contains a chromium element and/or a tungsten element. Preferably, a content of a chromium source which contains the chromium element is from 0.001 to 5 parts by mass, and a content of a tungsten source which contains the tungsten element is from 0.001 to 1.0 part by mass relative to 100 parts by mass of the starting material mixture.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 7, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kentaro Iwasaki, Akiyoshi Nemoto
  • Patent number: 8835339
    Abstract: A framework for developing high quality factor (Q) material for electronic applications in the radio frequency range is provided. In one implementation, ceramic materials having a tungsten bronze crystal structure is modified by substituting one or more elements at one or more lattice sites on the crystal structure. The substitute elements are selected based on the ionic radius and other factors. In other implementations, the modified ceramic material is prepared in combination with compositions such as rutile or a perovskite to form a orthorhombic hybrid of perovskite and tetragonal tungsten bronze.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Skyworks Solutions, Inc.
    Inventor: Michael D. Hill
  • Patent number: 8821748
    Abstract: A ceramic or single crystal ferroelectric and a method of manufacture are disclosed. The ceramics and single crystals of the present disclosure are located near phase boundaries between ferroelectric and antiferroelectric phases. These ceramics, single crystals, and composite may be used in pulsed power applications.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: September 2, 2014
    Assignee: TRS Technologies, Inc.
    Inventors: Wesley S. Hackenberger, Edward F. Alberta
  • Patent number: 8778502
    Abstract: A glass ceramic composition includes a SrZrO3 ceramic, a Li2O—MgO—ZnO—B2O3—SiO2-based glass, Mg2SiO4 in an amount of about 5 to 40 weight percent, and a SrTiO3 ceramic in an amount in the range of about 0 to about 6 weight percent of the total. The Li2O—MgO—ZnO—B2O3—SiO2-based glass accounts for about 1 to about 12 weight percent of the total.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 15, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasutaka Sugimoto, Sadaaki Sakamoto, Hiroshige Adachi
  • Patent number: 8778819
    Abstract: Disclosed is a dielectric ceramic composition which has high dielectric constant and suppressed low thermal expansion coefficient. Also disclosed are a multilayer dielectric substrate using the dielectric ceramic composition, and an electronic component. Specifically disclosed is a dielectric ceramic composition which contains an ATiO3 (wherein A represents either Ca and/or Sr) phase and an AAl2Si2O8 phase, said dielectric ceramic composition being characterized in that the dielectric constant is not less than 10 at 3 GHz and the average thermal expansion coefficient over the temperature range of 40-600° C. is less than 7 ppm/° C.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: July 15, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Junichi Masukawa, Koji Ichikawa
  • Patent number: 8771631
    Abstract: A method is provided which includes a reaction step of reacting at least titanium oxide, a calcium compound, and barium hydroxide in a slurry solution so as to produce a perovskite-type composite oxide. The perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, and x is within a range of 0<x?0.125. In addition, the method provides a perovskite-type composite oxide in which a water-soluble calcium compound is used as the calcium compound, and when the perovskite-type composite oxide is represented by (Ba1-xCax)mTiO3, x is within a range of 0<x?0.20.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: July 8, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toshiharu Nakagawa, Norikazu Tachibana, Yasunari Nakamura
  • Patent number: 8765621
    Abstract: There is provided a dielectric ceramic composition for high-frequency use represented by a composition formula of a(Sn,Ti)O2-bMg2SiO4-cMgTi2O5-dMgSiO3. In the composition formula, a, b, c and d (provided that a, b, c and d are mol %) are within the following ranges: 4?a?37, 34?b?92, 2?c?15 and 2?d?15, respectively, and a+b+c+d=100. The dielectric ceramic composition for high-frequency use has a relative permittivity ?r of 7.5-12.0, a Qm×fo value of not less than 50000 (GHz) and an absolute value of a temperature coefficient ?f of resonance frequency fo of not more than 30 ppm/° C.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 1, 2014
    Assignee: UBE Industries, Ltd.
    Inventors: Takafumi Kawano, Masataka Yamanaga, Atsushi Okabe
  • Publication number: 20140179508
    Abstract: Disclosed herein is a dielectric composition including: a dielectric ceramic represented by the following equation: X2Y2Ti4O12 (wherein X is Li, or Na, and Y is Nd, Sm or Bi); and any one additive selected from BaZ2Ti4O12 (wherein Z is Nd, Sm or Bi), (Ti0.55Zn0.15A0.3)O2 (wherein A is Ta or V), CaTiO3, and TiO2.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Jeong Hyun PARK
  • Publication number: 20140162065
    Abstract: The present disclosure is in the field of electrical circuits and particularly to circuits characterized by plural conductive paths supported on a non-conductive substrate. The disclosure relates to ceramic filler compositions and methods for preparing said compositions. Further, the present disclosure discloses fluoropolymer-ceramic filler compositions and their laminates along with their respective methods for preparing the same. Said fluoropolymer-ceramic filler compositions provide for excellent properties for dielectric constant, loss tangent and temperature coefficient of dielectric constant. In addition, electrical substrate materials comprising of a conductive outer layer supported on a thin sheet of insulating material is also disclosed.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 12, 2014
    Applicants: Centre for Materials for Electronics Technology (C-MET), The Secretary, Dept. of Electronics and IT, Govt. of India
    Inventors: Rajesh SURENDRAN, Murali Kodakkattumana PURUSHOTHAMAN, Ratheesh RAVENDRAN
  • Publication number: 20140150389
    Abstract: Disclosed are ceramic bodies comprised of composite cordierite aluminum magnesium titanate ceramic compositions and methods for the manufacture of same.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Inventors: Adriane Marie Divens-Dutcher, Patrick David Tepesch, Elizabeth Marie Vileno
  • 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: 8715807
    Abstract: A mixture of fused grains mainly comprising or composed of an oxide phase of pseudo-brookite type and comprising titanium, aluminum and magnesium, the fused grains having the following chemical composition, in weight percentages on the basis of the oxides: less than 55% of Al2O3; more than 30% and less than 70% of TiO2; more than 1% and less than 15% of MgO, the fused grains also corresponding to the following composition, in molar percentages and on the basis of the single oxides Al2O3, TiO2, MgO: 180?3t+a?220, a?50, m=100?a?t, in which: a is the molar percentage of Al2O3; t is the molar percentage of TiO2; m is the molar percentage of MgO. A ceramic product obtained from such fused grains.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 6, 2014
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Yves Boussant-Roux, Isabelle Cabodi, Samuel Marlin
  • Patent number: 8685363
    Abstract: A honeycomb carrier for an exhaust gas-cleaning catalyst to clean e.g. an exhaust gas of an automobile particularly containing NOx, wherein the material for the honeycomb carrier is an aluminum magnesium titanate sintered product obtained by firing at from 1,000 to 1,700° C. a molded product formed from a raw material mixture comprising 100 parts by mass, as calculated as oxides, of a mixture comprising a Mg-containing compound, an Al-containing compound and a Ti-containing compound in the same metal component ratio as the metal component ratio of Mg, Al and Ti in an aluminum magnesium titanate represented by the empirical formula MgxAl2(1+x)Ti(1+x)O5 (wherein 0?x?1), and from 1 to 10 parts by mass of an alkali feldspar represented by the empirical formula (NayK1?y)AlSi3O8 (wherein 0?y?1).
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 1, 2014
    Assignee: Ohcera Co., Ltd.
    Inventors: Tsutomu Fukuda, Masahiro Fukuda, Masaaki Fukuda, Toshinobu Yoko, Masahide Takahashi
  • 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: 8669198
    Abstract: The present invention relates to a basic-refractory composition containing magnesium orthotitanate (Mg2TiO4) and calcium titanate (CaTiO3) suitable for use in rotating kilns for the production of Portland cement or lime.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 11, 2014
    Assignee: Elfusa Geral de Electgrofusao Ltda
    Inventor: Luís Leonardo Horne Curimbaba Ferreira
  • Patent number: 8663777
    Abstract: A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, the cell walls comprising at least main crystals of aluminum titanate, in which MgO and SiO2 are dissolved to form a solid solution, and glass phases, the glass phases containing 40-80% by mass of SiO2 and 1-20% by mass of MgO, the average size of the glass phases being 30 ?m or less in a cross section of the cell walls, and the area ratio of the glass phases to the total area of the main crystals of aluminum titanate and the glass phases being 2-12% in a cross section of the cell walls, and its production method.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: March 4, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hirohisa Suwabe, Masaru Yoshida, Tomomasa Kumagai, Hideya Yamane
  • 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: 20140016243
    Abstract: Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.
    Type: Application
    Filed: September 19, 2013
    Publication date: January 16, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shoichiro Suzuki, Koichi Banno, Taisuke Kanzaki, Akihiro Shiota
  • Patent number: 8598068
    Abstract: New photocatalytic product comprising compounds of titanium integrated with limestone. The product is obtained by reacting limestone with a suitable precursor of titanium dioxide in a basic solution, followed by accurately washing the solid obtained, drying it and calcining it. A composite is obtained containing limestone, titanium dioxide and calcium titanate. The composite thus obtained, used as such or in mixture with other components, has shown an unexpectedly high photocatalytic activity.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 3, 2013
    Assignee: Italcementi S.p.A.
    Inventors: Renato Ancora, Massimo Borsa, Maurizio Iler Marchi
  • Patent number: 8598064
    Abstract: New photocatalytic product comprising compounds of titanium integrated with limestone. The product is obtained by reacting limestone with a suitable precursor of titanium dioxide in a basic solution, recovering the product in particular conditions, drying it and calcining it. By operating in presence of sodium, a composite is obtained substantially free from titanium dioxide, containing limestone and calcium titanate. The composite thus obtained, used as such or in mixture with other components, has shown an unexpectedly high photocatalytic activity.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: December 3, 2013
    Assignee: Italcementi S.p.A.
    Inventors: Renato Ancora, Massimo Borsa, Maurizio Iler Marchi
  • Patent number: 8592041
    Abstract: Provided is a glass ceramic composition which can be fired at a temperature of 1000° C. or lower, and a sintered body of which has a low relative permittivity and a high Q value, stable temperature characteristic and high reliability, and is excellent in plating solution resistance. The glass ceramic composition provides a low dielectric constant layer for inclusion in a laminate glass ceramic substrate in a ceramic multilayer module. It includes a first ceramic having forsterite as the main constituent, a second ceramic having at least one of SrTiO3 and TiO2 as the main constituent, a third ceramic having BaZrO3 as the main constituent, a fourth ceramic having at least one of ZrO2 and MnO as the main constituent, and 3 weight % or more of a borosilicate glass containing Li2O, MgO, B2O3, SiO2 and ZnO, which further contains an additive constituent including at least one of CaO and SrO.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 26, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroshige Adachi, Sadaaki Sakamoto
  • Publication number: 20130310247
    Abstract: A ceramic body based on an aluminum titanate system has the following composition: i) approximately >95% by weight Al2O3.TiO2; ii) approximately 0.1-approximately 5.0% by weight SiO2; iii) approximately 0.1-approximately 5.0% by weight MgO; iv) approximately 0-approximately 2.0% by weight Fe2O3; v) approximately 0-approximately 1.0% by weight BeO, BaO or CaO; vi) approximately 0-approximately 1.0% by weight Li2O, Na2O or K2O; vii) approximately 0-approximately 2% by weight impurities. The ceramic body has a mass ratio TiO2:Al2O3 that is in a range between approximately 0.75 and approximately 0.95.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 21, 2013
    Applicant: MANN+HUMMEL GMBH
    Inventors: Jochen Linhart, Frank Ehlen
  • Patent number: 8586495
    Abstract: A dielectric material is provided. The material includes ?[Ca1-x-yBaxSry(Ca1-zCuz)Cu2-pLa2p/3Ti4-qMqO12-?]+(1??)[BarSr1-rTiO3], wherein M is aluminum, chromium, zirconium, or combinations thereof; x can vary between the value of zero and 0.1 such that 0?x?0; y, z, and r can vary between the value of zero and 1 such that 0?y?1, 0?z?1, and 0?r?1; p and q can vary between the value of zero and 0.1 such that 0?p?0.1 and 0?q?0.1; ? can vary between the value of zero and 0.05 such that 0???0.05; and ? can vary between the value of 0.5 and 1 such that 0.5???1, with a proviso that when x=y=0 and z=?=1, p and q are greater than zero; and when x=y=z=0, p and q 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: November 19, 2013
    Assignee: General Electric Company
    Inventors: Kalaga Murali Krishna, Lohit Matani
  • Patent number: 8586494
    Abstract: The invention relates to a mixture of fused grains having the following chemical composition, in weight percentages on the basis of the oxides: less than 55% of Al2O3; more than 35% and less than 80% of TiO2; more than 1% and less than 20% of MgO; more than 0.7% and less than 20% of ZrO2; and less than 20% of SiO2, said fused grains also corresponding to the following composition, in molar percentages, on the basis of the single oxides Al2O3, TiO2, MgO, ZrO2: 90<2a+3m<110, 100+a<3t<210?a with a+t+m+zr=100, in which: a is the molar percentage of Al2O3; t is the molar percentage of TiO2; m is the molar percentage of MgO; and zr is the molar percentage of ZrO2. The invention also relates to a ceramic product obtained from such fused grains.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 19, 2013
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventor: Stephane Raffy
  • Publication number: 20130298650
    Abstract: A moisture-sensitive ceramic material having a composition represented by the general formula RE(A,B)O3, wherein RE is a rare earth element, A is a divalent metal element, and B is a tetravalent metal element. More specifically, the moisture-sensitive ceramic material has a composition represented by the general formula RE(A1-xBx)O3, and A is Ni or Mg, and B is Ti or Sn.
    Type: Application
    Filed: July 17, 2013
    Publication date: November 14, 2013
    Inventor: Tadamasa Miura
  • Patent number: 8582277
    Abstract: A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an internal electrode layer are stacked. The dielectric layer is constituted from a dielectric ceramic composition including; a compound having a perovskite structure expressed by a formula of ABO3 (A is at least one selected from Ba, Ca, and Sr; B is at least one selected from Ti, Zr, and Hf); an oxide of Mg; an oxide of rare earth elements including Sc and Y; and an oxide including Si. The dielectric ceramic composition comprises a plurality of dielectric particles and a grain boundary present in between the dielectric particles. In the grain boundary, when content ratios of Mg and Si are set to D(Mg) and D(Si) respectively, D(Mg) is 0.2 to 1.8 wt % in terms of MgO, and D(Si) is 0.4 to 8.0 wt % in terms of SiO2.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: November 12, 2013
    Assignee: TDK Corporation
    Inventors: Hirobumi Tanaka, Makoto Endo, Satoko Ueda, Daisuke Ueda, Shogo Murosawa, Daisuke Yoshida, Kenta Ono, Minoru Ogasawara, Tatsuya Kikuchi