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| Number | Title | Issue Date |
| 8178455 | Alumina sintered body, method for manufacturing the same, and semiconductor manufacturing apparatus member A method for manufacturing an alumina sintered body of the present invention comprises: (a) forming a mixed powder containing at least Al2O3 and MgF2 or a mixed powder containing Al2O3, MgF2, and MgO ... | 05/15/2012 |
| 8173563 | Sintered body and production method thereof An object is to provide a sintered body causing less chipping and having a sufficiently higher polishing rate than a conventional AlTiC sintered body, and providing a sufficiently smooth air bearing surface. The sintered body according to the present invention consi... | 05/08/2012 |
| 8012898 | Ceramic with improved high temperature electrical properties for use as a spark plug insulator An insulator including alumina in an amount between about 90 and about 99% by weight and an oxide mixture or glass mixture including Boron Oxide, Phosphorus Oxide, or both Boron and Phosphorus Oxide. ... | 09/06/2011 |
| 7825053 | Sintered spherical pellets Sintered, spherical composite pellets or particles comprising alumina fines, at least one of clay and bauxite and optionally a sintering aid, are described, along with a process for their manufacture. The use of such pellets in hydraulic fracturing of subterranean f... | 11/02/2010 |
| 7691764 | Translucent ceramic, optical component, and optical device Provided is a translucent ceramic which has a high Abbe number, is advantageous in aberration correction, and can be easily produced. The translucent ceramic contains, as a main component, a garnet type compound represented by the General Formula: Y3Al | 04/06/2010 |
| 7678723 | Sintered spherical pellets Sintered, spherical composite pellets or particles comprising alumina fines, at least one of clay and bauxite and optionally a sintering aid, are described, along with a process for their manufacture. The use of such pellets in hydraulic fracturing of subterranean f... | 03/16/2010 |
| 7595274 | Sintered body, magnetic head slider, and method of manufacturing sintered body A sintered body for a magnetic head slider, which can reduce differences in level of an air bearing surface while yielding a high strength, a magnetic head slider using the same, and a method of manufacturing a sintered body for a magnetic head slider are provided. ... | 09/29/2009 |
| 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 |
| 7414002 | Aluminum oxide-titanium nitride sintered body, manufacturing method thereof, and magnetic head substrate, ultrasonic motor and dynamic pressure bearing using the same The present invention provides an aluminum oxide-titanium nitride sintered body having good resistance to electrostatic damage and small variation in volume resistivity. The aluminum oxide-titanium nitride sintered body is mainly composed of 65 to 85% by weight of a... | 08/19/2008 |
| 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 |
| 7402540 | Ceramic body containing alumina and boron carbide A ceramic body that includes between about 15 volume percent and about 35 volume percent of a boron carbide irregular-shaped phase, and at least about 50 volume percent alumina, and the ceramic body has a fracture toughness (KIC, 18.5 Kg Load E&C) greater... | 07/22/2008 |
| 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 |
| 7381670 | Material for magnetic head slider, magnetic head slider, and method of producing material for magnetic head slider A material for a magnetic head slider according to the present invention is a magnetic head slider material comprised of a sintered body containing alumina and titanium carbide, in which an area percentage of an area of alumina crystal grains and titanium carbide cr... | 06/03/2008 |
| 7375044 | Process for making a ceramic body containing alumina and boron carbide A process for making a ceramic body that includes the following steps: providing a starting powder mixture, the starting powder mixture comprises between about 15 volume percent and about 35 volume percent boron carbide powder and at least about 50 volume percent al... | 05/20/2008 |
| 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 |
| 7350571 | Methods of preparing and using coated particulates The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par... | 04/01/2008 |
| 7348286 | Ceramic composite material and method of its manufacture Ceramic composite material that has excellent mechanical properties within a range from room temperature to high temperature and high die release with respect to glass, resins, ceramics, and similar substances. The ceramic composite material is composed of a ceramic... | 03/25/2008 |
| 7334636 | Methods of creating high-porosity propped fractures using reticulated foam One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ... | 02/26/2008 |
| 7335617 | Refractory product for a checker work element of a glass furnace regenerator The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight composition, expressed in weight percent based on oxide content: 0.4... | 02/26/2008 |
| 7335615 | Method of machining a workpiece using a ceramic cutting insert including alumina and boron carbide A method of machining a workpiece including the steps of providing a workpiece; providing a ceramic cutting insert having a rake surface and a flank surface wherein the rake surface and the flank surface intersect to form a cutting edge and the ceramic cutting inser... | 02/26/2008 |
| 7334635 | Methods for fracturing subterranean wells A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates... | 02/26/2008 |
| 7320716 | Method for toughening surface of sintered material cutting tool and sintered material cutting tool having long life A ceramics sintered material cutting tool, characterizing in that it has a dislocation structure which formed on the surface thereof in a straight line from and distributed uniformity in a dislocation density of 1×104 to 9×1013 cm−2 | 01/22/2008 |
| 7318474 | Methods and compositions for controlling formation fines and reducing proppant flow-back Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ... | 01/15/2008 |
| 7318473 | Methods relating to maintaining the structural integrity of deviated well bores Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic... | 01/15/2008 |
| 7307033 | Method for producing α-alumina particulate A method for producing an α-alumina particulate is described. The method for producing an α-alumina particulate comprises steps of (Ia) and (Ib), or a step of (II): (Ia) removing water from a mixture containing water, a seed crys... | 12/11/2007 |
| 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 |
| 7299875 | Methods for controlling particulate migration Many methods are provided including methods of stabilizing a portion of a subterranean formation or reducing the production of particulates from a portion of a subterranean formation comprising contacting the portion of the subterranean formation with a pre-flush fl... | 11/27/2007 |
| 7294164 | Narrow pore size distribution aluminum titanate body and method for making same This invention relates to an aluminum titanate body having a narrow pore size distribution as characterized by the relation (d50−d10)/d50 being less than 0.50 corresponding to a high degree of interconnected porosity. The body also... | 11/13/2007 |
| 7282112 | Method and apparatus for an improved baffle plate in a plasma processing system The present invention presents an improved baffle plate for a plasma processing system, wherein the design and fabrication of the baffle plate advantageously provides for a uniform processing plasma in the process space with substantially minimal erosion of the baff... | 10/16/2007 |
| 7281970 | Composite articles and methods of making the same Composite articles (e.g., abrasive articles (e.g., abrasive wheels and honing sticks), cutting tools, and cutting tool inserts) comprising a glass-ceramic distributed in a ceramic matrix. ... | 10/16/2007 |
| 7281581 | Methods of hydraulic fracturing and of propping fractures in subterranean formations A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the... | 10/16/2007 |
| 7273099 | Methods of stimulating a subterranean formation comprising multiple production intervals A method of stimulating a production interval adjacent a well bore having a casing disposed therein, that comprises introducing a carrier fluid comprising first particulates into the well bore, packing the first particulates into a plurality of perforations in the c... | 09/25/2007 |
| 7270704 | Mixture for fabrication of fireproof high-strength spherical granules and the method of their manufacture The inventive method for producing refractory high-strength spherical granules consists in separately presintering kaolin and bauxite in a rotational furnace, jointly sintering said components in order to produce a charging material, granulating, drying and screenin... | 09/18/2007 |
| 7267882 | Ceramic/metal material and method for making same An improved ceramic/metal composite material is disclosed which is fully reacted with aluminum. The composite is made from a ceramic preform, such as silicon carbide, having a binding agent, such as silica, that is contacted with a metal mixture or alloy, such as al... | 09/11/2007 |
| 7267171 | Methods and compositions for stabilizing the surface of a subterranean formation Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component compris... | 09/11/2007 |
| 7264052 | Methods and compositions for consolidating proppant in fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In certain embodiments, the hardenable resin compositions may be especially suited for consolidating proppant in subterranean fractures having temperatures above abo... | 09/04/2007 |
| 7264051 | Methods of using partitioned, coated particulates Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the adhesive substance comprises an aqueous tackifying agent or ... | 09/04/2007 |
| 7261156 | Methods using particulates coated with treatment chemical partitioning agents Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the partitioning agent comprises a subterranean treatment chemic... | 08/28/2007 |
| 7258707 | AIO-LaO-YO-MgO ceramics, and methods of making the same Al2O3—La2O3—Y2O3—MgO ceramics (including glasses, crystalline ceramics, and glass-ceramics) and methods of making the same. Ceramics according to the present invention can be made, formed as, or... | 08/21/2007 |
| 7259120 | Aluminum titanate ceramic articles and methods of making same An aluminum titanate ceramic article having a predominant crystal phase of aluminum titanate and a material composition including aluminum, titanium, silica, an alkaline earth metal (e.g., at least one selected from the group of strontium, calcium, barium, or combin... | 08/21/2007 |
