Titanate, Zirconate, Stannate, Niobate, Or Tantalate Or Oxide Of Titanium, Zirconium, Tin, Niobium, Or Tantalum Containing (e.g., Dielectrics, Etc.) Patents (Class 501/134)
  • Patent number: 10767265
    Abstract: This disclosure relates to compositions for protecting a metallic surface susceptible to corrosion, the composition comprising a first component comprising an aqueous mixture of an acid-phosphate of chemical formula Am(H2PO4)m.nH2O, where A is hydrogen ion, ammonium cation, metal cation, or mixtures thereof where m=1-3, and n=0-6; the first component solution adjusted to a pH of about 2 to about 5, the first component having a particle size distribution between 0.04 to 60 micron; and a second component, configured for combination and at least partial reaction with the first component to provide a phosphate ceramic, the second component comprising an aqueous solution or suspension of an alkaline oxide or alkaline hydroxide represented by B2mOm, B(OH)2m, or mixtures thereof, where B is an element of valency 2m (m=1, 1.5, or 2) the second component solution adjusted to a pH of between 9-14.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 8, 2020
    Assignee: Latitude 18, Inc.
    Inventors: Sameerkumar Vasantlal Patel, Benjamin Chaloner-Gill, Anthony V. Collins
  • Patent number: 10714688
    Abstract: A perovskite thin film and method of forming a perovskite thin film are provided. The perovskite thin film includes a substrate, a hole blocking/electron transport layer, and a sintered perovskite layer. The method of forming the perovskite solar cell includes depositing a perovskite layer onto a substrate and processing (for example, by sintering) the perovskite layer with intense pulsed light to initiate a radiative thermal response that is enabled by an alkyl halide additive.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 14, 2020
    Inventors: Thad Druffel, Brandon Lavery, Krishnamraju Ankireddy, Amir Hossein Ghahremani, Blake Martin, Gautam Gupta
  • Patent number: 10663560
    Abstract: The present disclosure relates to a method for cancelling spillover in a MIMO radar system. The method comprises (i) transmitting and receiving a signal in a transmit-receive pair, the received signal including a spillover signal; (ii) routing a part of the transmitted signal of the transmit-receive pair to the received signal to increase the power level of the spillover signal; and (iii) cancelling the spillover signal and the part of the transmitted signal by a spillover cancellation subsystem associated with the transmit-receive pair. Because the part of the transmitted signal corresponds to the spillover signal, both of these signals may be added together to result in a combined signal having a high enough power level to improve the functioning of the spillover cancellation subsystem.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 26, 2020
    Assignee: IMEC VZW
    Inventor: Ilja Ocket
  • Patent number: 10186379
    Abstract: A dielectric composition is provided. The dielectric composition includes: a main component made of: a first complex oxide expressed by a chemical formula {K(Ba1-xSrx)2Nb5O15}; and a second complex oxide expressed by a chemical formula that differs the chemical formula of the first complex oxide. The second complex oxide is a complex oxide expressed by one of chemical formulae: {(Ca1-ySry)(Zr1-zTiz)O3}; {Ba(Ti1-uZru)O3}; {(Ca1-vSrv)TiSiO5}; and {(Ba1-wRe2w/3)Nb2O6}, x satisfies 0.35?x?0.75, and a satisfies 0.25?a?0.75 when a molar ratio between the first and second complex oxides is defined by a:b in an order and a+b=1.00.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 22, 2019
    Inventor: Tetsuhiro Takahashi
  • Patent number: 10092225
    Abstract: A system and method for measuring glucose levels in a user's blood without having to draw a blood sample. A wave energy source emits wave energy. A modified ceramic coaxial resonator is provided that receives the wave energy and produces a frequency oscillation. An opening is formed in a conductive layer surrounding the ceramic coaxial resonator. Skin tissue is pressed against the opening. The sample tissue alters the frequency oscillation created by the ceramic coaxial resonator. At least some of the altered frequency oscillation is indicative of blood glucose levels within the sample tissue.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 9, 2018
    Inventor: Sarijit S. Bharj
  • Patent number: 9761948
    Abstract: The present invention relates to an integrated circuit package comprising at least one substrate, each substrate including at least one layer, at least one semiconductor die, at least one terminal, and an antenna located in the integrated circuit package, but not on said at least one semiconductor die. The conducting pattern comprises a curve having at least five sections or segments, at least three of the sections or segments being shorter than one-tenth of the longest free-space operating wavelength of the antenna, each of the five sections or segments forming a pair of angles with each adjacent segment or section, wherein the smaller angle of each of the four pairs of angles between sections or segments is less than 180° (i.e.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: September 12, 2017
    Assignee: FRACTUS, S.A.
    Inventors: Jordi Soler Castany, Jaume Anguera Pros, Carles Puente Baliarda, Carmen Borja Borau
  • Patent number: 9682892
    Abstract: A thermal spray powder of the present invention contains ceramic particles having an average particle size of 1 ?m or more and 20 ?m or less. The ceramic particles have a flowability index value FT of 3 or more measured by using a powder rheometer. The flowability index value FF is determined by measuring the maximum principal stress and the uniaxial collapse stress of the ceramic particles at normal temperature and normal humidity when 9 kPa of shear force is applied to the ceramic particles, and by dividing the measured maximum principal stress by the measured uniaxial collapse stress.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 20, 2017
    Inventors: Junya Kitamura, Kazuto Sato, Kazuyuki Tsuzuki
  • Patent number: 9647197
    Abstract: There is provided a piezoelectric ceramics, including a perovskite compound of a non-stoichiometric composition represented by a composition formula (KxNa1-x)y(Nb1-zTaz)O3 (0<x?1, 0<y<1, 0?z?0.5); and a sintering aid which includes an oxide containing K, Co, and Ta.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 9, 2017
    Inventors: Koichi Kikuta, Jun Isono, Keiji Kura, Yoshitsugu Morita
  • Patent number: 9595385
    Abstract: A multilayer ceramic capacitor may include: a ceramic body including a plurality of dielectric layers; a capacitor unit disposed in an upper portion of the ceramic body and including a plurality of first and second internal electrodes; an equivalent series resistance (ESR) controller disposed in a lower portion of the ceramic body and including a plurality of third and fourth internal electrodes; a gap layer disposed between the capacitor unit and the ESR controller; first and second external electrodes disposed on the first and second end surfaces of the ceramic body and electrically connected to the first and second internal electrodes; and third and fourth external electrodes disposed on the first and second lateral surfaces of the ceramic body and electrically connected to the third and fourth internal electrodes.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 14, 2017
    Inventors: Young Ghyu Ahn, Min Cheol Park, Sang Soo Park, Byoung Hwa Lee
  • Patent number: 9385302
    Abstract: A multi-layer electronic component that can be repetitively operated under high voltage, high temperature and high humidity is provided. The multi-layer electronic component comprises a plurality of dielectric material layers made of a sintered material having perovskite structure that includes Pb; and a plurality of internal electrodes, the dielectric material layers and the internal electrodes being stacked alternately one on another, wherein lead compound that remains in the crystal grain boundaries of the dielectric material layers is controlled so that the number of grains of the lead compound not smaller than 0.01 ?m are 2 or less per 100 ?m2 on average.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: July 5, 2016
    Inventor: Masahiro Sato
  • Patent number: 9339791
    Abstract: Disclosed herein is a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate. Also disclosed are porous ceramic honeycomb structures comprising a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate and methods of preparing a ceramic body comprising at least one phase comprising a pseudobrookite-type crystal structure and at least one phase comprising zirconium tin titanate.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: May 17, 2016
    Assignee: Corning Incorporated
    Inventors: Gregory Albert Merkel, Bryan Ray Wheaton
  • Patent number: 9318690
    Abstract: A piezoelectric element is provided. The piezoelectric element includes a piezoelectric layer made of a perovskite compound containing sodium, potassium, lithium, niobium and tantalum and bismuth manganate. The piezoelectric element may also include electrodes for applying a voltage to the piezoelectric layer. The piezoelectric layer may contain 0.25 to 1 mol % of bismuth manganate relative to the perovskite ceramics.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: April 19, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Xiaoxing Wang
  • Patent number: 9260777
    Abstract: A transparent crystalline electrically-conductive thin film of the present invention comprises an indium tin oxide as a main component, wherein the indium tin oxide contains 9% by weight or less of tin oxide based on the total amount of indium oxide and tin oxide, wherein the transparent crystalline electrically-conductive thin film contains 0.45 atomic % or less of nitrogen. The transparent crystalline electrically-conductive thin film of the present invention has a high resistance value and good reliability in a high-temperature, high-humidity environment.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: February 16, 2016
    Inventors: Tomotake Nashiki, Tomonori Noguchi, Hideo Sugawara
  • Patent number: 9182287
    Abstract: An infrared sensor includes a heat sensing element in which a first electrode, a dielectric film, and a second electrode are sequentially laminated; and an electric charge detection device. The dielectric film represents antiferroelectricity and has a spontaneous polarization in a predetermined measurement environment. The electric charge detection device calculates an amount of relaxation current flowing by a change of the spontaneous polarization, and senses heat of the heat sensing element based on temperature dependence of the amount of relaxation current.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: November 10, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takayuki Yonemura, Takafumi Noda, Yasushi Tsuchiya, Sr.
  • Patent number: 9159904
    Abstract: This invention provides for a piezoelectric ceramic composition having a lead-free alkaline niobate piezoelectric ceramic composition with a favorable piezoelectric property. This invention refers to a piezoelectric ceramic composition 10 that is described as composition formula {Lix(K1-yNay)1-x}(Nb1-zSbz)O3 including the additives of the metallic elements Bi and Fe within the range of the following relational expressions: 0.03?x?0.045; 0.5?y?0.58; 0.03?z?0.045; and 0.006?v?w?0.010 whereof v is the additive amount of Bi (molar ratio), and w is the additive amount of Fe (molar ratio).
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: October 13, 2015
    Inventors: Kenji Nagareda, Atsuhiro Hayashi
  • Patent number: 9105845
    Abstract: A piezoelectric ceramic with environmental friendliness including a composition as the main component composed of a composite oxide free from lead (Pb) as a constituent element, and with excellent piezoelectric characteristics such as the relative dielectric constant, the electromechanical coupling factor, and the piezoelectric constant, and a piezoelectric device using the piezoelectric ceramic, are provided. A piezoelectric ceramic including a composition represented by the following general formula as the main component: (K1-x-y-w-vNaxLiyBawSrv)m(Nb1-z-uTaz-Zru)O3 (wherein, x, y, z, w, v, u and m in the formula satisfy the following conditions respectively: 0.4<x?0.7; 0.02?y?0.1; 0<z?0.3; 0<w?0.01; 0.04?v?0.07; 0.04?u?0.07; and 0.95?m<1).
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: August 11, 2015
    Inventors: Hideaki Sone, Tomohisa Azuma, Masahito Furukawa, Satoko Ueda
  • Patent number: 9059497
    Abstract: A variable filter includes, on a dielectric substrate including ground conductor, first resonator including a transmission line connected to input terminal, second resonator including a transmission line connected to output terminal, and coupling portion including a transmission line having one end connected to the first and second resonators and another end being an open end, or structure having one end connected to the first and second resonators, including a serial connection of a transmission line and a variable capacitor, another end of the variable capacitor connected to the ground conductor, and adjusting means capable of changing electric length, in the first and second resonators and the coupling portion, wherein pass band width can be changed by changing ratio of electric transmission length of the coupling portion to electric transmission lengths of transmission line including the coupling portion, and the first and second resonators.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: June 16, 2015
    Inventors: Xiaoyu Mi, Osamu Toyoda, Satoshi Ueda
  • Publication number: 20150131200
    Abstract: A ceramic material for capacitors uses multilayer technology of the general formula: Pb1?1.5a?0.5b+1.5d+e+0.5f)AaBb(Zr1?xTix)(1?c?d?e?f)LidCeFefSicO3+y.PBO wherein A is selected from the group consisting of La, Nd, Y, Eu, Gd, Tb, Dy, Ho, Er and Yb; B is selected from the group consisting of Na, K and Ag; C is selected from the group consisting of Ni, Cu, Co and Mn; and 0<a<0.12; 0.05?x?0.3; 0<b<0.12; 0?c?0.12; 0<d<0.12; 0?e?0.12; 0 <f<0.12; 0?y?1, and wherein b+d+e+f>0.
    Type: Application
    Filed: February 18, 2013
    Publication date: May 14, 2015
    Inventors: Günter Engel, Michael Schossmann, Markus Koini, Andrea Testino, Christian Hoffmann
  • Publication number: 20150125361
    Abstract: A permanent filter for a medical sterilization container is provided. The permanent filter is made from a ceramic. The ceramic is made from globular substrate grains. A medical sterilization container is also provided, in particular for receiving and storing objects to be sterilized, having a container bottom part and a container top part for closing the container bottom part in a closed position of the sterilization container. At least one of the container bottom part and the container top part have a gas exchange orifice, which is closed with a permanent filter. The permanent filter is made from a ceramic and the ceramic is made from globular substrate grains. In addition, a method is provided for producing a permanent filter for a medical sterilization container. The permanent filter is produced from a ceramic material by sintering. Globular substrate grains are used as the ceramic material.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventors: Dieter Weisshaupt, Thomas Weik, Stefan Schuster, John Gray-Dreizler, Wolfgang Burger
  • Patent number: 9022226
    Abstract: A separation membrane according to the present invention is characterized by having a porous tube containing an alumina as a main component and an attachment member disposed in a connection position of the porous tube, wherein the porous tube and the attachment member are bonded by a ceramic oxide-based bonding agent containing 17 to 48 wt % of SiO2, 2 to 8 wt % of Al2O3, 24 to 60 wt % of BaO, and 0.5 to 5 wt % of ZnO as essential components and containing at least one of La2O3, CaO, and SrO, and a thin zeolite layer is formed on a surface of the porous tube. The attachment member is bonded to the porous tube before the formation of the zeolite layer. Therefore, the bonding agent can have a melting temperature higher than 600° C., which is the upper heatproof temperature limit of the zeolite. Thus, the ceramic oxide material for the bonding agent can be selected from a wider range of compositions such as glass compositions (without limitations on the glass softening temperature).
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: May 5, 2015
    Assignee: Hitachi Zosen Corporation
    Inventors: Kazuhiro Yano, Yoshinobu Takaki
  • Patent number: 9005465
    Abstract: Methods for forming lead zirconate titanate (PZT) nanoparticles are provided. The PZT nanoparticles are formed from a precursor solution, comprising a source of lead, a source of titanium, a source of zirconium, and a mineralizer, that undergoes a hydrothermal process. The size and morphology of the PZT nanoparticles are controlled, in part, by the heating schedule used during the hydrothermal process.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 14, 2015
    Assignee: University of Washington through its Center for Commercialization
    Inventors: I-Yeu Shen, Guozhong Cao, Hsien-Lin Huang
  • Patent number: 9006122
    Abstract: There are provided a dielectric ceramic having a high Qf value in a relative permittivity ?r range of 35 to 45, and a small absolute value of a temperature coefficient ?f which indicates change of the resonant frequency in a wide temperature range from a low temperature range to a high temperature range, and a dielectric filter having the dielectric ceramic. A dielectric ceramic includes: a main component, molar ratios ?, ?, and ? satisfying expressions of 0.240???0.470, 0.040???0.200, 0.400???0.650, and ?+?+?=1 when a composition formula of the main component is represented as ?ZrO2.?SnO2.?TiO2; and Mn, a content of Mn in terms of MnO2 being greater than or equal to 0.01% by mass and less than 0.1% by mass with respect to 100% by mass of the main component.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 14, 2015
    Assignee: KYOCERA Corporation
    Inventors: Tsuyoshi Komatsu, Satoshi Toyoda, Hidehiro Takenoshita
  • Publication number: 20150098166
    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: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Sung Hyung Kang, Doo Young Kim, Chang Hak Choi
  • Patent number: 8999872
    Abstract: Porous composites of acicular mullite and tialite are formed by firing an acicular mullite body in the presence of an oxide of titanium. In some variations of the process, the oxide of titanium is present when the acicular mullite body is formed. In other variations, the oxide of titanium is applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of acicular mullite and tialite alone. Some of the tialite is believed to form at grain boundaries and/or points of intersection between acicular mullite needles, rather than merely coating the needles. The presence of the titanium oxide(s) during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 7, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel Grohol, Mark L. Dreibelbis, Michael T. Malanga
  • Patent number: 9000199
    Abstract: A porous ceramic matrix contains a plurality of ceramic particles adhered to each other, and a plurality of channels defined by surfaces of neighboring ceramic particles, the channels each having an average diameter of 0.5-2.5 ?m. Preferred ceramics also have a porosity of 25.0-40.0%, a Darcy's Permeability of 1.57-34.8×10?14 m2, and a mechanical strength of 25-64 MPa. Also disclosed is a method of preparing such a porous ceramic matrix, comprising providing a pellet containing ceramic particles that are coated with a monomer, a catalyst, and a binder; polymerizing the monomer in the solid state by heating, then carbonizing and sintering the pellet.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 7, 2015
    Assignee: National University of Singapore
    Inventors: Liang Hong, Xinwei Chen
  • Patent number: 8994250
    Abstract: There is provided a piezoelectric/electrostrictive element 1 comprising a piezoelectric/electrostrictive body 30 made of a piezoelectric/electrostrictive ceramic composition containing Pb(Ni1/3Nb2/3)O3—PbTiO3—PbZrO3 ternary solid solution system composition as the main components, and an electrode disposed on the piezoelectric/electrostrictive body, wherein the ternary solid solution system composition is represented by the following composition formula: (Pb1-xSrx)?{(Ti1-yZry)a(Ni?/3Nb2/3)b(Al?/2Nb1/2)c}O3 (where 0.005?x?0.03, 0.45?y?0.54, 0.58?a?0.91, 0.07?b?0.36, 0.02?c?0.08, 0.97???1.03, 0.97???1.03, 0.97???1.03, and (a+b+c=1.000)).
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: March 31, 2015
    Assignee: NGK Insulators, Ltd.
    Inventor: Tomohiko Hibino
  • Publication number: 20150080211
    Abstract: A composite oxide with a high oxygen storage capacity is provided without using cerium. The composite oxide is an iron oxide-zirconia composite oxide containing iron, zirconium, and a rare-earth element. The total content of Fe2O3, ZrO2, and an oxide of the rare-earth element is not less than 90 mass %, the content of an iron oxide in terms of Fe2O3 is 10 to 90 mass %, and the absolute value of the covariance COV(Fe, Zr+X) of the composite oxide, which has been baked in the atmosphere at a temperature of greater than or equal to 900° C. for 5 hours or more, determined by the following Formulae (1) to (3), is not greater than 20: ? [ Math .
    Type: Application
    Filed: April 26, 2013
    Publication date: March 19, 2015
    Inventors: Masahide Miura, Atsushi Tanaka, Takahiro Suzuki, Tadashi Suzuki, Toshitaka Tanabe, Naoki Takahashi
  • Publication number: 20150038319
    Abstract: The present invention provides a medical ceramic material with a color other than black or white, especially blue, with which it is possible to secure sufficient durability and to maintain a good appearance by sufficiently suppressing a color difference between before and after the irradiation of gamma-rays for sterilization. The medical ceramic material is formed using a composite material containing alumina and zirconia. The composite material contains cobalt oxide. The content of cobalt oxide is set to be 0.2 wt % to 1.0 wt % with respect to 100 wt % of the composite material excluding cobalt oxide.
    Type: Application
    Filed: February 28, 2013
    Publication date: February 5, 2015
    Applicant: KYOCERA Medical Corporation
    Inventors: Takefumi Nakanishi, Hironori Nagata
  • Publication number: 20150035210
    Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Inventors: Wolfram Holand, Elke Signer-Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
  • Patent number: 8936848
    Abstract: A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of yttria through a thickness of the green body. The green body is substantially opaque with a substantially consistent optical characteristic of non-translucency with respect to visible light across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of increasing translucency through a thickness of the dental prosthesis.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: January 20, 2015
    Assignee: B&D Dental Corp
    Inventors: Yunoh Jung, Daniel Yonil Jung, Young Jin Kim, Yoonho Jun
  • Patent number: 8936731
    Abstract: A process for the preparation of a niobium compound of formula (I): D?Nb?E?O3-???(I) wherein D is an alkali metal (e.g. Li, Na, K, Rb, Cs and/or Fr), alkaline earth metal (such as Ba, Ca, Mg and/or Sr), La and/or Bi and may be present as a mixture of two or more metals; E is Ta, Sb and/or Fe and may be present as a mixture of two or more metals; ? is a positive number ? is a positive number ? is zero or a positive number ? is a number 0???0.5; and wherein the formula (I) has the perovskite or tungsten bronze structure; comprising spray pyrolising a solution, for example an aqueous solution, comprising metal (D) ions, Nb ions and if present, metal (E) ions.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: January 20, 2015
    Assignee: Cerpotech AS
    Inventors: Francesco Madaro, Tor Grande, MariAnn Einarsrud, Kjell Wiik
  • Publication number: 20150001673
    Abstract: A transition metal oxide dielectric material is doped with a non-metal in order to enhance the electrical properties of the metal oxide. In a preferred embodiment, a transition metal oxide is deposited over a bottom electrode and implanted with a dopant. In a preferred embodiment, the metal oxide is hafnium oxide or zirconium oxide and the dopant is nitrogen. The dopant can convert the crystal structure of the hafnium oxide or zirconium oxide to a tetragonal structure and increase the dielectric constant of the metal oxide.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 1, 2015
    Inventors: Jiutao Li, Shuang Meng
  • Publication number: 20150002352
    Abstract: The invention concerns a manufacturing method of a new type of dielectric material having a predefined variable permittivity resulting from the manufacturing process. Main characteristic of the manufacturing method is that in a first step homogeneous dielectric material (100) is shaped in at least a direction and subsequently at least a part thereof is formed so that the resulting dielectric material body (102) has the predefined variation in permittivity in said at least one direction. Said forming step may advantageously comprise sub-steps of deforming at least a part of the shaped dielectric material body and fixing the so deformed dielectric material body. The manufacturing steps are adapted so to induce a predefined variation in permittivity corresponding but not limited to a certain law (e.g. Luneburg, Maxwell, . . . ).
    Type: Application
    Filed: December 7, 2012
    Publication date: January 1, 2015
    Inventors: Hervé Merlet, Phillippe Le Bars, Olivier Lafond, Mohammed Himdi
  • 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: 8920683
    Abstract: A sputtering target which is composed of a sintered body of an oxide which contains at least indium, tin, and zinc and includes a spinel structure compound of Zn2SnO4 and a bixbyite structure compound of In2O3. A sputtering target includes indium, tin, zinc, and oxygen with only a peak ascribed to a bixbyite structure compound being substantially observed by X-ray diffraction (XRD).
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 30, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koki Yano, Kazuyoshi Inoue, Nobuo Tanaka, Akira Kaijo, Satoshi Umeno
  • Publication number: 20140370453
    Abstract: A subject of the invention relates to providing a powder for a translucent zirconia sintered body which is necessary for the production of a zirconia sintered body having a high sintered-body density and high strength and giving an excellent sense of translucency, without conducting any special sintering, such as HIP sintering. The invention relates to a technique for obtaining, through normal-pressure sintering, a translucent zirconia sintered body characterized by comprising zirconia which contains 2-4 mol % yttria as a stabilizer and has an alumina content of 0.2 wt % or lower, and by having a relative density of 99.8% or higher and a total light transmittance, as measured at a thickness of 1.0 mm, of 35% or higher. It is preferred that a powder containing 0-0.2 wt % alumina with a particle diameter of 0.01-0.5 ?m, having a BET specific surface area of 5-16 m2/g and an average particle diameter of 0.3-0.7 ?m, and having a rate of sintering shrinkage in normal-pressure sintering (??/?T; g/cm3·° C.) of 0.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventors: Hiroyuki Fujisaki, Kiyotaka Kawamura, Kohei Imai
  • 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
  • Publication number: 20140370291
    Abstract: The present invention relates to an alumina-zirconia nanostructured composite material characterised in that the content of elements other than Al, Zr, Hf, Y, Ce and O is less than 100 ppm, the Cl content is less than 1 ppm, at least one of the components has a mean grain size in the final material smaller than 500 nm, and at least 1/10 of the particles are in the intragranular position. Another object of the invention is the process for obtaining said material, as well as the use thereof.
    Type: Application
    Filed: October 24, 2012
    Publication date: December 18, 2014
    Inventors: Luís Antonio Díaz Rodríguez, Ramón Torrecillas San Millan, Adolfo Fernández Valdés, Marta Suarez Menéndez, Martin Rudolf Schehl
  • 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: 8900475
    Abstract: A PZT-type piezoelectric ceramic material having a perovskite structure of the ABO3 type. The stoichiometric ratio of AB is 1:1, with the “A” component being Pb1-zSrz and the “B” component being (Mn1/3Sb2/3)x(ZryTi1-y)1-x. Z is between 0.02 and 0.03, x is between 0.03 and 0.07, and y is between 0.40 and 0.60. The material further comprises dopants, with the dopants comprising Ce, Cu, and Nb dopants, with each of the Ce, Cu, and Nb dopants being provided in an amount of up to 2 wt. %, with the combined amount of the Ce, Cu, and Nb2 dopants being between 1 wt. % and 4 wt. %. Methods for preparing the PZT ceramic materials by combining oxides of Pb, Sr, Mn, Sb, Zr, Ti, Nb, Cu, and Ce and calcining the combined oxides so as to produce a PZT composition of the stated formula are also disclosed.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 2, 2014
    Assignee: Piezotech, LLC
    Inventor: De Liufu
  • Publication number: 20140349834
    Abstract: Disclosed is a composition for ferroelectric thin film formation which is used in the formation of a ferroelectric thin film of one material selected from the group consisting of PLZT, PZT, and PT. The composition for ferroelectric thin film formation is a liquid composition for the formation of a thin film of a mixed composite metal oxide formed of a mixture of a composite metal oxide (A) represented by general formula (1): (PbxLay)(ZrzTi(1-z))O3 [wherein 0.9<x<1.3, 0?y<0.1, and 0?z<0.9 are satisfied] with a composite oxide (B) or a carboxylic acid (B) represented by general formula (2): CnH2n+1COOH [wherein 3?n?7 is satisfied]. The composite oxide (B) contains one or at least two elements selected from the group consisting of P (phosphorus), Si, Ce, and Bi and one or at least two elements selected from the group consisting of Sn, Sm, Nd, and Y (yttrium).
    Type: Application
    Filed: July 31, 2014
    Publication date: November 27, 2014
    Inventors: Jun Fujii, Hideaki Sakurai, Takashi Noguchi, Nobuyuki Soyama
  • Publication number: 20140349832
    Abstract: Ceramic nanocomposites and methods for manufacturing the ceramic nanocomposites are disclosed. One method includes introducing to a fired green ceramic body having a ceramic matrix submicron particles having coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one type of location-controlling dopant at an amount that is sufficient to cover the majority of the ceramic matrix grain boundaries. One ceramic nanocomposite includes a ceramic matrix with submicron particles dispersed in the ceramic matrix, the submicron particles having a coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one dopant that covers the majority of the ceramic matrix grain boundaries, at a concentration that does not exceed the bulk solubility limit of the dopant in the ceramic matrix at the ceramic nanocomposite sintering temperature.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Wayne David KAPLAN, Gali Gluzer, Moshe Katz, Gil Perlberg
  • Publication number: 20140342898
    Abstract: The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 20, 2014
    Applicant: Corning Incorporated
    Inventors: Monika Backhaus-Ricoult, Christopher Raymond Glose
  • 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: 20140336034
    Abstract: Mixer for ceramic feedstock pellets with a tank, a mixing means, and heat exchange means including cooling means for the cooling of the content of this tank. Control means control the heat exchange means which include heating means arranged to heat the content of this tank to a temperature comprised between a lower temperature (TINF) and a higher temperature (TSUP) stored in a memory for a specific mixture, and the heating means exchange energy with a heat exchange and mixing temperature maintenance circuit, external to this tank, and wherein the thermal inertia of this circuit is higher than that of this fully loaded tank. The invention also concerns a method for mixing raw material for powder metallurgy, implementing a specific injection moulding composition and a specific binder.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 13, 2014
    Applicant: Comadur S.A.
    Inventor: Damien CARTIER
  • Patent number: 8859447
    Abstract: Provided are aluminum titanate capable of providing a sintered body having a low coefficient of thermal expansion, a high porosity, and high mechanical strength, a production method of the same, and a sintered body of the columnar aluminum titanate. The columnar aluminum titanate has an average aspect ratio (=(number average major-axis length)/(number average minor-axis length)) of 1.5 or more and its magnesium content is preferably within the range of 0.5% to 2.0% by weight relative to the total amount of titanium and aluminum in terms of their respective oxides.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 14, 2014
    Assignee: Otsuka Chemical Co., Ltd.
    Inventors: Nobuki Itoi, Hiroyoshi Mori, Takahiro Mishima, Hidetoshi Ogawa
  • Publication number: 20140302320
    Abstract: A dielectric ceramic composition is represented by a general formula “xBi2O3-yZnO-(z-a)Nb2O5-aV2O5”. In the general formula, values “x”, “y”, “z” and “a” respectively satisfy the following conditions: 2.90?x?3.10, 1.90?y?2.10, 1.90?z?2.10, and 0.0005?a?0.020.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 9, 2014
    Applicant: TDK CORPORATION
    Inventors: Tomohiro ARASHI, Osamu TAGUCHI, Tomoaki KAWATA
  • Patent number: 8853112
    Abstract: A sintered bead presenting the following chemical analysis, in percentages by weight and for a total of 100%: ZrO2+HfO2: 78%-85%; CeO2: ?15%; Al2O3: >0.1%; additive: >0.1%; impurities: <1%; the additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO, and mixtures thereof. Application to microgrinding and to microdispersion.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: October 7, 2014
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Emmanuel Nonnet, Rimma Khodakovskaya, Moshe Link, Marcel Yancu, Andrei Schon, Eric Hanus
  • 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