Aluminum Compound (e.g., Clay, Aluminium Oxide, Etc.) Patents (Class 501/127)
  • Patent number: 10407350
    Abstract: Refractory composite material based on Al2O3 in the form of corundum, SiO2 in the form of quartz and sodium aluminate having the formula NaAl11O17 or Na2O— 11Al2O3, method for preparing the same, use thereof for preparing manufactured items, as well as manufactured items made thereby and use thereof.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: September 10, 2019
    Assignee: BIGARAN S.r.l.
    Inventor: Gian Luigi Cattaneo
  • Patent number: 10336937
    Abstract: Disclosed here is a method for making a monolithic rare earth oxide (REO) aerogel, comprising: preparing a reaction mixture comprising at least one rare earth metal nitrate, at least one epoxide, at least one base catalyst, and at least one organic solvent; curing the mixture to produce a wet gel; drying the wet gel to produce a dry gel; and thermally annealing the dry gel to produce the monolithic REO aerogel. Also disclosed is an REO aerogel comprising a network of REO nanostructures, wherein the REO aerogel is a monolith having at least one lateral dimension of at least 1 cm, wherein the REO aerogel has a density of about 40-500 mg/cm3 and/or a BET surface area of at least about 20 m2/g, and wherein the REO aerogel is substantially free of oxychloride.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 2, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Marcus A. Worsley, Alexander E. Gash, Robert A. Reibold
  • Patent number: 10316404
    Abstract: A sputtering target including an oxide with a low impurity concentration is provided. Provided is a method for manufacturing a sputtering target, including a first step of preparing a mixture including indium, zinc, an element M (the element M is aluminum, gallium, yttrium, or tin), and oxygen; a second step of raising a temperature of the mixture from a first temperature to a second temperature in a first atmosphere containing nitrogen at a concentration of higher than or equal to 90 vol % and lower than or equal to 100 vol %; and a third step of lowering the temperature of the mixture from the second temperature to a third temperature in a second atmosphere containing oxygen at a concentration of higher than or equal to 10 vol % and lower than or equal to 100 vol %.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 11, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshinori Yamada, Masashi Oota
  • Patent number: 9894763
    Abstract: It is provided an insulating substrate including through holes 2 for conductors arranged in the insulating substrate. A thickness of the insulating substrate is 25 to 300 ?m , and a diameter of the through hole is 20 to 100 ?m . The insulating substrate is composed of an alumina sintered body. A relative density and an average grain size of the alumina sintered body is 99.5 percent or higher and 2 to 50 ?m , respectively.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: February 13, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Tatsuro Takagaki, Yasunori Iwasaki, Sugio Miyazawa, Akiyoshi Ide, Hirokazu Nakanishi
  • Patent number: 9873182
    Abstract: A grinding tool includes a body having a first layer. The first layer can include bond material that is at least about 20 vol % of a total volume of the first layer. Additionally, the first layer can include abrasive particles contained within the bond material. In an embodiment, the abrasive particles include a first type of abrasive particle including black alumina with at least about 10 vol % of a total volume of the abrasive particles including black alumina. In some instances, the grinding tool can include a second layer that includes black alumina.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 23, 2018
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Dashi Nie, Shenglan Huang, Gaoxiang Gou
  • Patent number: 9873184
    Abstract: A cutting wheel includes a body having a bond material. The bond material comprises at least about 31 vol % of a total volume of the body. Additionally, the body includes abrasive particles contained within the bond material. The abrasive particles include a first type of abrasive particle including black alumina with at least about 10 vol % of a total volume of the abrasive particles including black alumina. In some instances the cutting wheel can include a chop saw, while in other situations, the cutting wheel can include a cut-off wheel.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: January 23, 2018
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Dashi Nie, Shenglan Huang, Gaoxiang Gou
  • Patent number: 9751281
    Abstract: The inorganic fiber molded body of the present invention is characterized in that the molded body has an extremely light weight, and is free from problems such as scattering of fibers and particulate matters from a surface thereof and environmental pollution such as generation of harmful gases. In addition, the present invention provides an inorganic fiber molded body that is excellent in not only thermal shock resistance and mechanical shock resistance but also a high-speed wind erosion resistance, well-balanced in properties and can be used in the applications of various heat-insulating materials. The present invention relates to an inorganic fiber molded body comprising inorganic fibers and inorganic binder particles and having at least one set of a high-fiber density region and a low-fiber density region, in which a ratio of a content of the binder particles in the high-fiber density region to a content of the binder particles in the low-fiber density region as measured by a predetermined method is 0.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 5, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tsuyoshi Fukui, Toshio Ito, Yusaku Hata, Hisashi Aoyagi, Hidetaka Ito
  • Patent number: 9714185
    Abstract: A refractory object can include at least 10 wt % Al2O3. In an embodiment, the refractory object can further include a dopant including an oxide of a rare earth element, Ta, Nb, Hf, or any combination thereof. In another embodiment, the refractory object may have a property such that the averaged grain size does not increase more than 500% during sintering, an aspect ratio less than approximately 4.0, a creep rate less than approximately 1.0×10?5 ?m/(?m×hr), or any combination thereof. In a particular embodiment, the refractory object can be in the form of a refractory block or a glass overflow forming block. The glass overflow forming block can be useful in forming an Al—Si—Mg glass sheet. In a particular embodiment, a layer including Mg—Al oxide can initially form along exposed surfaces of the glass overflow forming block when forming the Al—Si—Mg glass sheet.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: July 25, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Olivier Citti, Andrea L. Kazmierczak
  • Patent number: 9670099
    Abstract: A thermal spray powder of the present invention contains a rare earth element and a group 2 element, which belongs to group 2 of the periodic table. The thermal spray powder, which contains a rare earth element and a group 2 element, is formed, for example, from a mixture of a rare earth element compound and a group 2 element compound or from a compound or solid solution containing a rare earth element and a group 2 element. The thermal spray powder may further contain a diluent element that is not a rare earth element or a group 2 element and is not oxygen, which is at least one element selected, for example, from titanium, zirconium, hafnium, vanadium, niobium, tantalum, zinc, boron, aluminum, gallium, silicon, molybdenum, tungsten, manganese, germanium, and phosphorus.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 6, 2017
    Assignees: FUJIMI INCORPORATED, TOKYO ELECTRON LIMITED
    Inventors: Hiroaki Mizuno, Junya Kitamura, Yoshiyuki Kobayashi
  • Patent number: 9598620
    Abstract: An abrasive article includes a body having abrasive particles contained within a bond material. The abrasive particles can include a majority content of silicon nitride and a minority content of sintering material including at least two rare-earth oxide materials. In an embodiment, the rare-earth oxide materials can include Nd2O3 and Y2O3. In a particular embodiment, the abrasive particles comprise a content (wt %) of Nd2O3 that is greater than a content of Y2O3 (wt %).
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 21, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Guan Wang, Vimal K. Pujari, Yves Boussant-Roux
  • Patent number: 9458523
    Abstract: An improved filter is described which is particularly suitable for filtering molten metal. The filter has a porous open celled ceramic foam body with voids separated by struts wherein a portion of the struts are densified with glass.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 4, 2016
    Assignee: Porvair Plc
    Inventors: Rudolph A. Olson, III, Matthew W. Willer, Leonard S. Aubrey
  • Patent number: 9446396
    Abstract: The present invention relates to petrochemistry and gas chemistry, and discloses a support for catalysis of exothermic processes, particularly the Fischer-Tropsch process, methanol synthesis, hydrogenation and purification of exhaust gases. The support comprises metallic aluminum in the form of a mixture of dispersed powders of flaky and spherical aluminum and the support is in the form of pellets, preferably cylinders, tablets, balls, obtained by extrusion, pelletization, tabletting, rounding or liquid molding. The catalyst prepared on the support comprises an active metal selected from the group consisting of Co, Fe, Ni, Ru, Rh, Pt, Pd, Cu and mixtures thereof.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: September 20, 2016
    Assignee: INFRA XTL TECHNOLOGY LIMITED
    Inventors: Vladimir Zalmanovich Mordkovich, Lilia Vadimovna Sineva, Igor Grigorievich Solomonik, Vadim Sergeevich Ermolaev, Eduard Borisovich Mitberg
  • Patent number: 9212302
    Abstract: Method for producing zirconia-reinforced Al2O3 grains, including at least the following steps: inductively melting a starting mixture to form a eutectic melt made of alumina and zirconia; applying the eutectic melt as a thin layer material, the thin layer material being quenched; and removing the thin layer material. In this manner abrasive grains can be formed directly or the thin layer material can be classified when it is broken into abrasive grains, the grains are polycrystalline without amorphous glass phases as an alumina matrix having zirconia precipitations, and at least some of the zirconia precipitations can be formed in the nanoscale range.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: December 15, 2015
    Assignee: VSM•Vereinigte Schmirgel-und Maschinen-Fabriken AG
    Inventors: Gerd Fischer, Clemens Megerle, Wolfgang Falz
  • Patent number: 9175439
    Abstract: A chemical reactor and a method for arranging a ceramic barrier in a gasifying reactor, which reactor is arranged to convert high energy organic waste of black liquor type with a large amount of organic or inorganic alkali metal compounds, by high temperature oxidation with air or oxygen, whereby the organic waste is converted to a hot reducing gas containing a considerable amount of water vapour and the inorganic compounds form an alkali-containing salt melt at a temperature of 750-1150° C.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: November 3, 2015
    Assignee: CHEMREC AKTIEBOLAG
    Inventor: Ragnar Tegman
  • Patent number: 9120704
    Abstract: A dielectric layer for an electrostatic chuck is formed of a ceramic material having a first phase including aluminum oxide and a second phase including composite carbonitride (Ti, Me)(C, N) that contains titanium as fine grains. The Me represents a transition element and metals of Group 4 to Group 6 such as Mo and W. The ceramic material that includes the second phase by 0.05 vol % to 2.5 vol % has a volume resistivity value of about 108 to 1013 (?·cm) necessary for a Johnsen-Rahbek type electrostatic chuck.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: September 1, 2015
    Assignees: Nippon Tungsten Co., Ltd., Shinko Electric Industries Co., Ltd., Trek Holding Co., Ltd., Japan Fine Ceramics Center
    Inventors: Kouta Tsutsumi, Mitsuyoshi Nagano, Koki Tamagawa, Norio Shiraiwa, Tadayoshi Yoshikawa, Miki Saito, Toshio Uehara, Hideaki Matsubara, Tetsushi Matsuda
  • Patent number: 9073773
    Abstract: A refractory object can include at least 10 wt % Al2O3. In an embodiment, the refractory object can further include a dopant including an oxide of a rare earth element, Ta, Nb, Hf, or any combination thereof. In another embodiment, the refractory object may have a property such that the averaged grain size does not increase more than 500% during sintering, an aspect ratio less than approximately 4.0, a creep rate less than approximately 1.0×10?5 ?m/(?m×hr), or any combination thereof. In a particular embodiment, the refractory object can be in the form of a refractory block or a glass overflow forming block. The glass overflow forming block can be useful in forming an Al—Si—Mg glass sheet. In a particular embodiment, a layer including Mg—Al oxide can initially form along exposed surfaces of the glass overflow forming block when forming the Al—Si—Mg glass sheet.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 7, 2015
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Olivier Citti, Andrea Kazmierczak
  • Patent number: 9061930
    Abstract: A device selected from among a glass furnace and a channel for dispensing the glass comprising a block and/or a coating made of a sintered material obtained by sintering a particular mixture comprising a chromium oxide content, indicated as “CrT”, of between 10% and 82%. The die fraction is such that 0.39·(CrT)+24<CrM<0.39·(CrT)+52, CrM denoting the chromium oxide content by weight of the die fraction in wt % on the basis of the oxides of the die, and the aggregate is such that xII?97%, xIII?70%, and xIV?xIII?70%, CrG denoting the chromium oxide content by weight of one grain in wt % on the basis of the oxides of said grain.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: June 23, 2015
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Cyril Linnot, Lionel Moitrier, Yves Marcel Leon Boussant Roux, Olivier Citti, Richard Avedikian
  • Patent number: 9061271
    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: Grant
    Filed: July 25, 2013
    Date of Patent: June 23, 2015
    Assignee: Mann+Hummel GmbH
    Inventors: Jochen Linhart, Frank Ehlen
  • Patent number: 8993466
    Abstract: The invention relates to an alumina-based opaque ceramic, similar to ruby and having a high toughness. This ceramic comprises, by weight: 0.4% to 5% of at least from one oxide of a metal chosen from chromium, cobalt, nickel, manganese, vanadium, titanium and iron; 0.00080 to 0.5% of magnesium oxide; and 0.05 to 6% of at least one oxide of an element of the group of rare earths. The ceramic is applicable in particular in jewelry, fine jewelry and watch making. The invention also relates to methods of preparing such a ceramic.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 31, 2015
    Assignee: Rolex S.A.
    Inventors: Ollivier Pujol, Isabelle Rigot
  • Patent number: 8962507
    Abstract: The invention relates to a composition, which comprises a particulate mixture of: (i) 25 to 80% calcined clay; (ii) 5 to 70% fluxing component; and (iii) 5 to 70% filler component.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: February 24, 2015
    Assignee: University of the West of England, Bristol
    Inventors: David Huson, Stephen Hoskins
  • Publication number: 20150044444
    Abstract: A thermal barrier coating that includes a YAG-based ceramic is prepared by a solution precursor plasma spray method that includes injecting a precursor solution into a thermal jet, evaporating solvent from the precursor solution droplets, and pyrolyzing the resulting solid to form a YAG-based ceramic that is melted and deposited on a substrate. The thermal barrier coating can include through-coating-thickness cracks that improve the strain tolerance of the coating.
    Type: Application
    Filed: April 22, 2013
    Publication date: February 12, 2015
    Inventors: Maurice Gell, Eric Jordan, Jeffrey Roth
  • Patent number: 8940187
    Abstract: Provided are a ceramic composite for light conversion, which is capable of maintaining a high radiant flux even when the proportion of Gd and Ce is increased to tune the fluorescence peak wavelength to the longer wavelength side, a process for producing the ceramic composite, and a light emitting device including the ceramic composite.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: January 27, 2015
    Assignee: UBE Industries, Ltd
    Inventors: Hideki Ohtsubo, Shin-Ichi Sakata, Shinichi Ishitobi, Yasuyuki Ichizono, Norifumi Miyamoto, Hisayoshi Iba
  • Patent number: 8932971
    Abstract: A material composed of a large fraction of aluminum oxide, zirconium oxide and strontium aluminate.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 13, 2015
    Assignee: CeramTec GmbH
    Inventors: Meinhard Kuntz, Peter Schröter, Wolfgang Jaschinski, Volker Sommer
  • Patent number: 8901022
    Abstract: The invention relates to a powder comprising more than 70% of refractory particles, in weight percent relative to the weight of the powder, a particle of said powder being classed in the fraction called “matrix” or in the fraction called “aggregate”, according to whether it is smaller than, or equal to 100 ?m, or larger than 100 ?m, respectively, said powder comprising, in weight percent relative to the weight of the powder: between 0.1% and 18% of particles of a heat-activatable binder, called “heat-activatable binder particles”; and more than 40% of refractory particles, called “ATZ particles”, having the following chemical composition, in weight percentages on the basis of the oxides of said ATZ particles: 10%?Al2O3?55%; 35%?TiO2?80%; 1%?MgO+Cr2O3?10%; 8%?ZrO2?20%; SiO2?8%.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 2, 2014
    Assignee: Saint0Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Olivier Jean Francy, Eric Jorge
  • Patent number: 8871312
    Abstract: Specialty ceramic materials which resist corrosion/erosion under semiconductor processing conditions which employ a corrosive/erosive plasma. The corrosive plasma may be a halogen-containing plasma. The specialty ceramic materials have been modified to provide a controlled electrical resistivity which suppresses plasma arcing potential.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: October 28, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Kenneth S. Collins, Ren-Guan Duan, Senh Thach, Thomas Graves, Xiaoming He, Jie Yuan
  • Patent number: 8859446
    Abstract: A method for producing an ? alumina sintered body for the production of a sapphire single crystal characterized in that a relative density is 60% or more, a closed porosity is 10% or less, a purity is 99.99% by mass or more, each content of Si, Na, Ca, Fe, Cu and Mg is 10 ppm or less, and a volume is 1 cm3 or more, and the ? alumina sintered body can be obtained by mixing 100 parts by weight of an ? alumina with 1 part by weight or more and 20 parts by weight or less of an ? alumina precursor to obtain a mixture, forming a compact from the obtained mixture, and firing the obtained compact.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: October 14, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hirotaka Ozaki, Shinji Fujiwara
  • Publication number: 20140302978
    Abstract: A mullite body comprising: a plurality of crystals, wherein about 70 percent or greater of the crystals have a crystal diameter that is within about 3 microns or less of an average diameter of the plurality of crystals, and a porosity of 55 percent or greater; and made using a process comprising: mixing precursor materials together with an average aggregate particle size of about 3 microns or smaller measured using a particle size analyzer; heating greenware in air to a first temperature such that the greenware is dried and forms calcineware, heating the calcineware in a silicon tetrafiouride atmosphere to form flurotopaz, and heating to a second temperature so that a mullite structure is formed.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 9, 2014
    Inventors: Aleksander J. Pyzik, Nicholas M. Shinkel
  • 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: 8834833
    Abstract: Process for preparing an aluminum oxide powder which is present in the form of aggregated primary particles and comprises at least 85% by weight of alpha-aluminum oxide, in which an aluminum oxide powder which a) is present in the form of aggregated primary particles, b) is selected from the group consisting of gamma-aluminum oxide, theta-aluminum oxide, delta-aluminum oxide and/or X-ray amorphous aluminum oxide, and c) has a tamped density of at least 250 g/l, is subject to a heat treatment at 13000 C or more and subsequently milled. Aluminum oxide powder which can be obtained by this process. Aluminum oxide powder in the form of aggregated primary particles having a BET surface area of from 3 to 30 m2/g, in which the proportion of alpha-aluminum oxide is at least 85% by weight and the ratio dgo/dio of the weight distribution of the primary particles is at least 2.8. Use as constituent of fluorescent tubes.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: September 16, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Schulze-Isfort, Christoph Batz-Sohn, Herbert Habermann, Ralph Hofmann
  • Patent number: 8834588
    Abstract: The present invention relates to polycrystalline Al2O3 bodies based on melted aluminum oxide having a mean crystallite size of the primary crystals between 20 ?m and 100 ?m and a closed macroporosity between 10% by volume and 30% by volume. The polycrystalline Al2O3 bodies may be obtained by tapping out and quenching a liquid aluminum oxide melt and simultaneous seeding of the pouring stream with seed crystals and can be used advantageously for the production of abrasive materials and refractory products.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: September 16, 2014
    Assignee: Center for Abrasives and Refractories Research & Development C.A.R.R.D. GmbH
    Inventor: Sebastian Sachse
  • Publication number: 20140234653
    Abstract: A thermal spray powder of the present invention contains a rare earth element and a group 2 element, which belongs to group 2 of the periodic table. The thermal spray powder, which contains a rare earth element and a group 2 element, is formed, for example, from a mixture of a rare earth element compound and a group 2 element compound or from a compound or solid solution containing a rare earth element and a group 2 element. The thermal spray powder may further contain a diluent element that is not a rare earth element or a group 2 element and is not oxygen, which is at least one element selected, for example, from titanium, zirconium, hafnium, vanadium, niobium, tantalum, zinc, boron, aluminum, gallium, silicon, molybdenum, tungsten, manganese, germanium, and phosphorus.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 21, 2014
    Applicants: TOKYO ELECTRON LIMITED, FUJIMI INCORPORATED
    Inventors: Hiroaki Mizuno, Junya Kitamura, Yoshiyuki Kobayashi
  • Patent number: 8778822
    Abstract: The present invention provides a ceramic porous body for in-vitro and in-vivo use comprising a composition comprising a calcium aluminate (CA) containing phase and optionally at least one of an accelerator, a retarder, a surfactant, a foaming agent, a reactive alumina, water, a fiber, and a biologically active material, and combinations thereof. Ceramic compositions are provides as well as method of using the ceramic compositions and methods of manufacturing a ceramic porous body. The ceramic porous bodies of this invention may be used as artificial bones, joints, in-vitro support structures, and in-vivo support structures for cells, tissues, organs, and nerve growth and regeneration.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: July 15, 2014
    Assignee: Cabertech, Inc.
    Inventor: Kenneth A. McGowan
  • Patent number: 8728966
    Abstract: It is an object to provide an aluminum oxycarbide composition capable of suppressing oxidation of Al4O4C during use to maintain advantageous effects of Al4O4C for a long time. In an aluminum oxycarbide composition comprising Al4O4C crystals, the Al4O4C crystals have an average diameter of 20 ?m or more, based on an assumption that a cross-sectional area of each Al4O4C crystal during observation of the aluminum oxycarbide composition in an arbitrary cross-section thereof is converted into a diameter of a circle having the same area as the cross-sectional area. This aluminum oxycarbide composition can be produced by subjecting a carbon-based raw material and an alumina-based raw material to melting in an arc furnace and then cooling within the arc furnace.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 20, 2014
    Assignee: Krosakiharima Corporation
    Inventors: Keiichiro Akamine, Joki Yoshitomi
  • Patent number: 8675344
    Abstract: A high energy density multilayer ceramic capacitor, having at least two electrode layers and at least one substantially dense polycrystalline dielectric layer positioned therebetween. The at polycrystalline dielectric layer has an average grain size of less than about 300 nanometers, a particle size distribution of between about 150 nanometers and about 3 micrometers, and a maximum porosity of about 1 percent. The dielectric layer is selected from the group including TiO2, BaTiO3, Al2O3, ZrO2, lead zirconium titanate, and combinations thereof and has a breakdown strength of at least about 1100 kV per centimeter.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: March 18, 2014
    Inventor: Fatih Dogan
  • Patent number: 8658054
    Abstract: In order to achieve the object of providing a mixture by means of which, in particular, sintered moldings can be obtained that are virtually free of surface stains produced by soot particles, a mixture is proposed which comprises at least one pressing aid and at least one additive, wherein the additive is selected from a group of substances which have releasable carbon dioxide.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: February 25, 2014
    Assignee: GKN Sinter Metals Holding GmbH
    Inventors: Rene Lindenau, Lars Wimbert
  • Patent number: 8658552
    Abstract: A high-chromia refractory, comprised of: about 60% to about 99% by weight of refractory grain, wherein the refractory grain is comprised of grains having about 20% to 100% by weight chromia; 0% to about 35% by weight of a fine particulate, the fine particulate selected from chromic oxide, alumina, ceria, yttria, lanthanum oxide, or combinations thereof; and about 1% to about 8% of a liquid resin or pitch.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: February 25, 2014
    Assignee: Harbison-Walker Refractories Company
    Inventors: H. David Prior, Glenn H. McIntyre, III
  • Patent number: 8617432
    Abstract: A sintered electroconductive oxide forming a thermistor element has a first crystal phase having a composition represented by RE14Al2O9 and a second crystal phase having a perovskite structure represented by (RE21-aSLa)MO3. The factor a of the second crystal phase is: 0.18<a<0.50, wherein RE1 represents at least one of Yb and Lu and at least one species selected from among group 3A elements excluding Yb, Lu, and La; RE2 represents at least one species selected from among group 3A elements excluding La and which contains at least one species selected from the group RE1; M represents Al and at least one species selected from group 4A to 7A, and 8 elements; and SL represents Sr, Ca, and Mg, with at least Sr being included at a predominant proportion by mole.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 31, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Yasuyuki Okimura, Shinji Ban, Hiroshi Watanbe, Takeshi Mitsuoka
  • Patent number: 8617433
    Abstract: A conductive sintered oxide including: a first crystal phase represented by RE14Al2O9 and a second crystal phase having a perovskite structure represented by (RE21-cSLc)(AlxM1y)O3. RE1 is a first element group consisting of Yb and/or Lu and at least one element selected from Group IIIA elements excluding Yb, Lu and La. RE2 is a second element group consisting of at least one element selected from Group IIIA elements excluding La and including at least one of the elements constituting the first element group RE1. SL is an element group consisting of at least one of Sr, Ca and Mg and which includes Sr as a main element, and M1 is an element group consisting of at least one element selected from Groups IVA, VA, VIA, VIIA and VIII excluding Cr. The coefficient c is in the range of 0.18<c<0.50, and the coefficients x and y are in the range of 0.95?x+y?1.1.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 31, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroshi Watanabe, Yasayuki Okimura, Shinji Ban, Takeshi Mitsuoka
  • Patent number: 8614157
    Abstract: Sintered, substantially round and spherical particles and methods for producing such sintered, substantially round and spherical particles from an alumina-containing raw material and a metal oxide sintering aid. The alumina-containing raw material contains from about 40% to about 55% alumina. Methods for using such sintered, substantially round and spherical particles in hydraulic fracturing operations.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 24, 2013
    Assignee: CARBO Ceramics, Inc.
    Inventors: William H. Pope, Chad Cannan, Jimmy C. Wood
  • Patent number: 8609562
    Abstract: Disclosed is a method of producing a plate brick, which comprises: adding an organic binder to a refractory raw material mixture containing aluminum and/or an aluminum alloy; kneading them; forming the kneaded mixture into a shaped body; and burning the shaped body in a nitrogen gas atmosphere at a temperature of 1000 to 1400° C., wherein: when a temperature of a furnace atmosphere is 300° C. or more, the atmosphere is set to a nitrogen gas atmosphere; and when the temperature of the furnace atmosphere is 1000° C. or more, an oxygen gas concentration in the atmosphere is maintained at 100 volume ppm or less, and a sum of a carbon monoxide gas concentration and a carbon dioxide gas concentration is maintained at 1.0 volume % or less.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 17, 2013
    Assignee: Krosakiharima Corporation
    Inventors: Keiichiro Akamine, Katsumi Morikawa, Joki Yoshitomi, Tsuneo Kayama
  • Patent number: 8609563
    Abstract: A sintered product presenting a mean chemical composition such that, in percentages by weight based on the oxides: Cr2O3: 72.0%-98.9% 2%<Al2O3?20% 0.1%?TiO2?6.0% ZrO2<4.0% SiO2?0.9%.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 17, 2013
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Olivier Citti, Julien Fourcade
  • 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
  • Patent number: 8569192
    Abstract: A sintered complex oxide comprising metal oxide particles (a) having a hexagonal lamellar structure and containing zinc oxide and indium, and metal oxide particles (b) having a spinel structure and containing a metal element M (where M is aluminum and/or gallium), wherein the mean value of the long diameter of the metal oxide particles (a) is no greater than 10 ?m, and at least 20% of the metal oxide particles (a) have an aspect ratio (long diameter/short diameter) of 2 or greater, based on the number of particles.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: October 29, 2013
    Assignee: Tosoh Corporation
    Inventors: Hideto Kuramochi, Kenji Omi, Masanori Ichida, Hitoshi Iigusa
  • Patent number: 8569191
    Abstract: The disclosure relates to a refractory which is resistant to corrosion which degrades the refractory during titanium-ore beneficiation in a furnace, particularly a rotary hearth furnace. In particular, the disclosure relates to a layered refractory lining for a furnace, for use in a titanium ore beneficiation process wherein a titanium oxide-rich molten slag is formed, comprising: (a) a first layer comprising a major proportion of alumina and a minor proportion of zirconia; (b) a second layer comprising a resistant agent for the molten slag; wherein the second layer is between the slag and the first layer.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: October 29, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: John James Barnes, Dat Nguyen, Peter Hill, Jay Scott Schickling
  • Patent number: 8551897
    Abstract: Provided are inorganic fibers containing calcium and alumina as the major fiber components. According to certain embodiments, the inorganic fibers containing calcia and alumina are provided with a coating of a phosphorous containing compound on at least a portion of the fiber surfaces. Also provided are methods of preparing the coated and non-coated inorganic fibers and of thermally insulating articles using thermal insulation comprising the inorganic fibers.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: October 8, 2013
    Assignee: Unifrax I LLC
    Inventors: Bruce K. Zoitos, Michael J. Andrejcak, Paul M. Boymel
  • Patent number: 8551910
    Abstract: The invention relates to a porous structure comprising a ceramic material comprising mainly or consisting of an oxide material of the pseudobrookite type comprising titanium, aluminum, magnesium and zirconium in proportions such that the phase of the pseudobrookite type substantially satisfies the formula: (Al2TiO5)x(MgTi2O5)y(MgTiZrO5)z. This material satisfies the following composition, in mol % on the basis of just the oxides Al2O3, TiO2, MgO and ZrO2: 90<2a+3m<110; 100+a<3t<210?a; and a+t+m+zr=100, in which: a is the molar content of Al2O3; t is the molar content of TiO2; m is the molar content of MgO; and zr is the molar content of ZrO2.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 8, 2013
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Stephane Raffy, Philippe Auroy
  • Publication number: 20130249136
    Abstract: A low-water-content castable composition produces cast products with an increased modulus of rupture, an increased cold crushing strength, and decreased porosity. The composition employs closed fractions of constituent particles with specified populations and specified gaps in the particle size distribution to produce these properties. The composition is suitable for refractory applications.
    Type: Application
    Filed: May 22, 2013
    Publication date: September 26, 2013
    Applicant: VESUVIUS CRUCIBLE COMPANY
    Inventor: Justin Teiken
  • Patent number: 8524178
    Abstract: A process of preparing a doped aluminum oxide, includes providing a solution comprising 8-hydroxyquinoline; an aluminum precursor; a dopant precursor, and a reaction solvent; isolating a precipitate from the solution; and calcining the precipitate to form the doped aluminum oxide. Compositions may be prepared which include tris(8-hydroxyquinolinato) aluminum and (8-hydroxyquinolinato)zM, wherein M is a metal ion and the value of z is equivalent to the oxidation state of the metal ion.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: September 3, 2013
    Assignee: Indian Institute of Technology Kanpur
    Inventor: S. Sundar Manoharan
  • Publication number: 20130224465
    Abstract: A ceramic block consisting essentially of substantially homogeneous (Y2O3)? P2O5, where 0.95?x?1.05, having length LL, a width WW and a height HH, and a volume W of at least 8×10?3 m3 essentially free of cracks throughout the volume, a density of at least 85% of the theoretical maximal density of Y203.P2O5 under standard conditions, and a creep rate CR at 1250° C. and 6.89 MPa; where CR?8.0×10?6 hour?1 and method for making the same. The method utilizes a dry process where the starting YP04-based ceramic material is synthesized by reacting anhydrous P2O5 with dry Y2O3 powder.
    Type: Application
    Filed: October 25, 2011
    Publication date: August 29, 2013
    Inventors: Ralph Alfred Langensiepen, Joseph James McIntosh, Tracey Lynn Timmons
  • Publication number: 20130210605
    Abstract: A refractory composition and processes for manufacture are provided where the compositions possess improved refractory alkali resistance and superior handling properties. Compositions and processes for their manufacture may include a plurality of ceramic particles and a binder sintered to the particles wherein the binder includes crystalline aluminum orthophosphate distributed as the result of an in situ reaction of aluminum metaphosphate with alumina. Kits provided according to the invention provide materials for use in manufacture of a composition where the kit includes aluminum metaphosphate and a nonfacile additive.
    Type: Application
    Filed: March 22, 2011
    Publication date: August 15, 2013
    Applicant: STELLAR MATERIALS INCORPORATED
    Inventor: Jens Decker