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| Number | Title | Issue Date |
| 7902099 | Dielectric layers and memory cells including metal-doped alumina A method of forming (and an apparatus for forming) a metal-doped aluminum oxide layer on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process. ... | 03/08/2011 |
| 7888279 | High toughness translucent alumina sintered body, method for producing the same, and its uses In the conventional alumina sintered bodies, a sintered body having high flexural strength, high toughness and high translucency in combination is not obtained, and a translucent alumina sintered body suitable for a dental material requiring both strength and sensuo... | 02/15/2011 |
| 7683001 | Dielectric layers and memory cells including metal-doped alumina A method of forming (and an apparatus for forming) a metal-doped aluminum oxide layer on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process. ... | 03/23/2010 |
| 7678725 | Translucent polycrystalline alumina ceramic A polycrystalline body includes aluminum oxide, magnesium oxide, zirconium oxide, and lutetium oxide. The lutetium oxide is present in an amount of at least 10 ppm of the weight of the ceramic body, and the magnesium and zirconium oxides are present at a molar ratio... | 03/16/2010 |
| 7538058 | Sintered body and electric lamp The sintered body of gastight translucent polycrystalline alumina contains oxidic magnesium, an oxidic second metal selected from erbium, holmium, thulium and dysprosium, and oxidic zirconium. The body can be used in a lamp vessel of an electric lamp. ... | 05/26/2009 |
| 7473662 | Metal-doped alumina and layers thereof A method of forming (and an apparatus for forming) a metal-doped aluminum oxide layer on a substrate, particularly a semiconductor substrate or substrate assembly, using a vapor deposition process. ... | 01/06/2009 |
| 7456122 | Polycrystalline alumina articles Polycrystalline alumina and methods for manufacturing polycrystalline alumina exhibiting improved transmission in the infrared region. In one embodiment, the percent real in-line transmittance is within about 2% of sapphire at selected wavelengths. In one or more em... | 11/25/2008 |
| 7427577 | Sintered polycrystalline terbium aluminum garnet and use thereof in magneto-optical devices A composition is provided that includes a plurality of calcined particles of terbium aluminum oxide having a mean particle domain size of between 30 and 600 nanometers. A translucent article having a surface includes polycrystalline terbium aluminum garnet having a ... | 09/23/2008 |
| 7416793 | Electrostatic chuck and manufacturing method for the same, and alumina sintered member and manufacturing method for the same An electrostatic chuck comprises a dielectric ceramic layer made of an alumina sintered body having a volume resistivity equal to or greater than about 1×1017Ω·cm at room temperature and a volume resistivity equal to or greater than about 1×1014 | 08/26/2008 |
| 7405173 | Alumina-titanium oxide-zirconia fused grain An alumina-titanium oxide-zirconia fused grain presenting, for a total of 100%, the following chemical composition: Al2O3: more than 10% and less than 50%; TiO2: more than 10% and l... | 07/29/2008 |
| 7396792 | Transparent polycrystalline aluminium oxide The present invention relates to highly dense translucent and transparent aluminium oxide components for applications, e.g. in the lighting industry, where a fine crystal size has to be obtained and stabilized for use at temperatures of 800° C. or more. Disclosed a... | 07/08/2008 |
| 7387977 | Alumina-sintered body and associated manufacturing method, and electrostatic chuck and associated manufacturing method A binder is mixed to alumina powder with a purity of 99.5% or more (step S11), the mixture is granulated (step S12), resultant granule powder is formed with a die (step S13), and a formed compact is sintered in a hot-pressing manner (step S14... | 06/17/2008 |
| 7384470 | Production of ceramic, glass ceramic and other mineral materials and composite materials An inorganic binder for the production of ceramic, glass ceramic and other mineral materials and composite materials comprises at least one inorganic compound having a mean particle size of | 06/10/2008 |
| 7371704 | Sintered bodies of yttrium-aluminum garnet, a method of producing the same and sintering aid therefor An object of the present invention is to lower the sintering temperature required for a sintered body of yttrium-aluminum garnet, to improve the corrosion resistance of the sintered body and to prevent the reduction of the transmittance thereof. A sintered body of y... | 05/13/2008 |
| 7348076 | Single crystals and methods for fabricating same Various single crystals are disclosed including sapphire. The single crystals have desirable geometric properties, including a width not less than about 15 cm and the thickness is not less than about 0.5 cm. The single crystal may also have other features, such as a... | 03/25/2008 |
| 7309669 | Dielectric material and dielectric sintered body, and wiring board using the same A dielectric material comprising: a glass powder constituted of a glass comprising Si, B and an alkali metal element, the glass being amorphous in sintering at a temperature of 1,050° C. or lower; and a ceramic filler comprising at least one member of SiO2 | 12/18/2007 |
| 7304010 | Aluminum oxide sintered body, and members using same for semiconductor and liquid crystal manufacturing apparatuses An aluminum oxide sintered body contains aluminum oxide in an amount of not less than 99% by weight and at least one selected from magnesium oxide, calcium oxide and silicon oxide, and contains phosphorus of not more than 0.0025 parts by weight to 100 parts by weigh... | 12/04/2007 |
| 7297650 | Method for producing low-loss tunable ceramic composites with improved breakdown strengths The production of low-loss, tunable composite ceramic materials with improved breakdown strengths is disclosed. The composite materials comprise ferroelectric perovskites such as barium strontium titanate or other ferroelectric perovskites combined with other phases... | 11/20/2007 |
| 7267889 | Sprayable composition The present invention provides a sprayable composition comprising a ceramic particulate including albite, illite, and quart, and a metallic composition, including nickel, chromium, iron, and silicon. The sprayable composition may be a composite particle, a blend, or... | 09/11/2007 |
| 7261864 | Catalyst carrier holding material and catalytic converter To provide a catalyst carrier holding material which is particularly useful for catalytic converters, by exhibiting heat resistance and high compression resistance in high temperature ranges, as well as excellent wind erosion resistance. The catalyst carrier holding... | 08/28/2007 |
| 7253129 | Rare earth garmet sintered compact A rare earth garnet sintered compact which is produced by subjecting a rare earth garnet powder such as YAG to a pre-sintering, sintering the pre-sintered product by HIP, and annealing the sintered product at 1100° C. to 1600° C. in a whole oxygen atmosphere under... | 08/07/2007 |
| 7247591 | Translucent PCA ceramic, ceramic discharge vessel, and method of making A translucent polycrystalline material suitable for use in ceramic discharge vessels for metal halide lamps is produced by sintering an alumina powder doped with a MgO sintering aid in a nitrogen atmosphere containing a partial pressure of a vapor phase carbon-conta... | 07/24/2007 |
| 7247589 | Transparent polycrystalline sintered ceramic of cubic crystal structure Transparent polycrystalline sintered ceramic of cubic crystal structure. The invention relates to the field of technical ceramic and relates to transparent polycrystalline sintered ceramics of cubic crystal structure for applications with increased mechanical stress... | 07/24/2007 |
| 7244301 | Heat generating biocompatible ceramic materials An injectable heat generating biocompatible ceramic compositions based on hydraulic calcium aluminate, which can be used for therapeutic treatment in vivo, such as tumour treatment, pain control, vascular treatment, drug activation etc, when curing in situ, and whic... | 07/17/2007 |
| 7241336 | Pyrogenically produced aluminum-silicon mixed oxides Pyrogenically produced aluminum-silicon mixed oxides with a BET surface of more than 300 m2/g and a composition of 0.01 to 99.99% by wt. AI2O3, remainder SiO2 are produced in accordance with the method of flame pyrolysis o... | 07/10/2007 |
| 7211325 | Fluoride salt coated magnesium aluminate A particle having a magnesium aluminate core and a fluoride salt coating on the core. The particle has been heated in an oxidizing atmosphere to a temperature in the range of about 400° C. to about 750° C. A method of making a particle by mixing a magnesium alumin... | 05/01/2007 |
| 7211533 | Oxide porcelain composition, ceramic multilayer substrate, and ceramic electronic component An oxide porcelain composition includes at least one metal element selected from Al, Si, Ba, B and Cr. The oxide porcelain composition contains about 11.5 weight percent to 60.0 weight percent of Al, in the form of Al2O3; about 4.0 weight perce... | 05/01/2007 |
| 7211233 | Method of preparing granules A method of preparing spherical pellets from a slurry comprising a ceramic powder, a solvent, and any desired additives, by means of a drop-generating orifice to which said slurry is fed is described, wherein the drops are released from said orifice by means of a re... | 05/01/2007 |
| 7211153 | Ceramic joined body, substrate holding structure and substrate processing apparatus A substrate holding structure having excellent corrosion resistance and airtightness, excellent dimensional accuracy and sufficient durability when mechanical or thermal stress is applied thereto is obtained. A holder (1) serving as the substrate holding stru... | 05/01/2007 |
| 7176153 | Refractory system for glass melting furnaces A refractory system for glass melting furnaces includes alumina, zirconia, and silica mixed with a silica binder. The refractory may be formed as refractory blocks or directly onto the wear portion of a glass melting furnace. The refractory may be formed using casti... | 02/13/2007 |
| 7172984 | Fuse housing of targeted percentage tetragonal phase zirconia and method of manufacture A ceramic fuse housing is provided for surface mount circuit protectors, wherein a selectively destructible fuse is at least partially retained within the fuse housing. The fuse housing being formed of between 80% to 90% alumina and 20% to 10% zirconia, wherein 5% t... | 02/06/2007 |
| 7169723 | Ceramic with improved high temperature electrical properties for use as a spark plug insulator A ceramic includes alumina in an amount between about 90 and about 99% by weight, a zirconium containing compound in an amount between about 0 and about 1% by weight, and an oxide mixture in an amount between about 1 and about 10% by weight. The oxide mixture includ... | 01/30/2007 |
| 7169322 | Aqueous dispersion, process for its production and use Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al2O3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or grinding devices which a achieve an energy input of... | 01/30/2007 |
| 7147544 | Glass-ceramics Glass-ceramics and methods of making the same. Embodiments of the invention include abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive bru... | 12/12/2006 |
| 7148480 | Polycrystalline optical window materials from nanoceramics Optical windows for protecting infrared sensing instruments are manufactured from nano-sized crystallites by compressing the crystallites into a continuous mass under high pressure in the presence of a pulsed electric current, preferably one produced by spark plasma... | 12/12/2006 |
| 7135426 | Erosion resistant process chamber components A substrate processing chamber component demonstrates reduced erosion in an energized gas. The component has a ceramic structure composed of aluminum oxide with a surface exposed to the energized gas in the chamber. The erosion of the surface by the energized gas is... | 11/14/2006 |
| 7101819 | Alumina-zirconia, and methods of making and using the same Alumina-zirconia materials and methods of making the same. Embodiments of the invention include abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and ... | 09/05/2006 |
| 7101820 | Crystalline compositions of doped aluminum phosphate The disclosed invention relates to novel crystalline compositions which may be obtained by doping the alpha (α) form of AlPO4 ceramics, which find use as piezoelectric materials, stable supports for catalysts, biotechnology uses, and the like. ... | 09/05/2006 |
| 7090894 | Bondcoat for the application of TBC's and wear coatings to oxide ceramic matrix A bond coat composition is provided for applying to the surface of a ceramic composite component between the composite substrate and the thermal barrier coat. The composition includes an alumina powder, a silica-yielding liquid, glass frits, and sufficient solvent t... | 08/15/2006 |
| 7091146 | Enhanced ceramic material for precision alignment mechanism Ceramics containing 80 wt % or greater of alumina (Al2O3), with Mn, Ti, Fe, Si, Ca and Mg, with Mn—Al spinal (MnO.Al2O3) crystals and anorthite crystals (CaO.Al2O3.2SiO2) generated by cal... | 08/15/2006 |
