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| Number | Title | Issue Date |
| 7226492 | High-powder tungsten-based sintered alloy Tungsten-based alloy material sintered at a high sintering power that may contain additive elements soluble in the nickel and selected from the group constituted, for example, by rhenium, molybdenum, tantalum, niobium, vanadium or a mixture of these, wherein, after ... | 06/05/2007 |
| 7217389 | Tungsten-containing articles and methods for forming the same Articles formed from powders containing tungsten and at least one binder. In some embodiments, the article contains at least one metallic binder. In some embodiments, the article contains at least one non-metallic binder, such as a polymeric binder. In some embodime... | 05/15/2007 |
| 7208773 | Cap for semiconductor device In a cap for a semiconductor device in which a light transmissive window is fixed to a cap body provided with a light transmissive opening using low-melting glass as a fixing material so that the light transmissive window covers the light transmissive opening, the l... | 04/24/2007 |
| 7186307 | Method for manufacturing a ceramic multilayer circuit board By increasing the quantity of resin binder of at least one of conductive paste and ceramic green sheet, adhesion between conductive film and the ceramic green sheet is improved when an intaglio filled with the conductive paste is hot pressed on the ceramic green she... | 03/06/2007 |
| 7160627 | Boron containing ceramic-aluminum metal composite and method to form the composite A boron containing ceramic-aluminum metal composite is formed by mixing a boron containing ceramic with a metal powder comprised of aluminum or alloy thereof, shaping the mixture into a porous preform, contacting the preform with an infiltrating metal comprised of a... | 01/09/2007 |
| 7153339 | Powder metallurgical compositions and methods for making the same Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the fi... | 12/26/2006 |
| 7153468 | Physical vapor deposition targets and methods of formation A method includes combining a solid first material and a solid second material and melting at least a portion of the first material sufficient to coat the second material and any remaining first material. An approximately homogenous distribution of the second materi... | 12/26/2006 |
| 7148598 | Spoke permanent magnet rotors for electrical machines and methods of manufacturing same A rotor assembly for an electric motor includes a spoke permanent magnet rotor and a shaft connected thereto. The spoke permanent magnet rotor has an axis of rotation, permanent magnet material, and ferro-magnetic material. The permanent magnet material extends outw... | 12/12/2006 |
| 7112302 | Methods for making shape memory alloy products The manufacturing methods according to the present teachings provide shape memory alloy products having both a uniform composition and a precise shape memory recovery temperature. In this manufacturing method, raw material powders (e.g., Ti and Ni powders) may be pr... | 09/26/2006 |
| 7070734 | Blended powder solid-supersolidus liquid phase sintering A green article comprising an A-B powder mixture and methods of manufacturing such green articles and corresponding sintered articles are disclosed. The A-B powder mixture consists of a minor volume fraction of a relatively fine powder A and a complementary major vo... | 07/04/2006 |
| 7063815 | Production of composite materials by powder injection molding and infiltration Metal-metal or metal-ceramic/carbide composite materials are fabricated by combination of powder injection molding and infiltration. This is achieved by first forming a composite system having a matrix component and an infiltrant layer. The matrix component is forme... | 06/20/2006 |
| 7059233 | Tungsten-containing articles and methods for forming the same Tungsten-containing articles and manufacturing processes for tungsten-containing articles. The articles may include firearms projectiles, such as shot, shot slugs, bullets, big game bullets, lead-equivalent bullets, black powder bullets, etc.; radiation shields; and... | 06/13/2006 |
| 7041250 | Combined liquid phase and activated sintering of refractory metals A process for producing a binder phase free fine grained refractory metal compact at temperatures that are less than about 80 percent of the melting point of the refractory metal. A refractory metal is mixed with a metallic reagent to produce a mixture with a low me... | 05/09/2006 |
| 6843823 | Liquid phase sintered braze forms A braze preform and a method for making the braze preform are disclosed. The braze preform includes a filler metal that has been sintered to produce a liquid phase of at least a portion of the filler metal. ... | 01/18/2005 |
| 6723278 | Method of laser casting copper-based composites This invention presents the process of direct laser casting of copper alloys: Cu—X (where X=Ni, Fe, W;) and their composites Cu—Y and Cu—X—Y (Y=WC, TiC, Ti+C) from powders prepared using mechanical mixing and ball milling processes. Since the metallic powder... | 04/20/2004 |
| 6551374 | Method of controlling the microstructures of Cu-Cr-based contact materials for vacuum interrupters and contact materials manufactured by the method The present invention relates to a method of controlling the microstructures of Cu--Cr-based contact materials for vacuum interrupters, in which a heat-resistant element is added to the Cu--Cr-based contact materials to obtain an excellent current interru... | 04/22/2003 |
| 6517773 | Direct metal fabrication of parts with surface features only A method of directly fabricating metal parts with surface features only requires first preparing a mold of the desired metal part. A powder blend is poured into the mold, which includes a base metal, a lower melting temperature alloy of the base metal, an... | 02/11/2003 |
| 6508978 | Golf club head with weighting member and method of manufacturing the same The use of hot pressing for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component and a binding component. A preferred multiple component material includ... | 01/21/2003 |
| 6500225 | Method for producing high density indium-tin-oxide sintered body A method for producing an indium-tin-oxide sintered body comprising the steps of; molding a powder comprising indium, tin and oxygen, and sintering the molded article in oxygen gas-containing atmosphere, wherein the halogen content of the powder comprising indium, ... | 12/31/2002 |
| 6475427 | Golf club with multiple material weighting member The use of liquid phase sintering for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component, a binding component and an anti-oxidizing component. A prefe... | 11/05/2002 |
| 6475429 | Heat sink substrate consisting essentially of copper and molybdenum and method of manufacturing the same A heat sink substrate comprises a Cu--Mo composite substrate composed of a molybdenum (Mo) green compact with which Copper (Cu) of 20-60 wt % is impregnated. It is preferable that the heat sink substrate is a rolled plate obtained by repeatedly warm rolli... | 11/05/2002 |
| 6403023 | Method for making porous metals A method for making porous metals that can be used as a filter, a sound-absorbing plate and a line material for a heat exchanger, is manufactured in a simple process using metal powder. The method includes the steps of heating a mixture of a powder-shaped... | 06/11/2002 |
| 6312495 | Powder-metallurgically produced composite material and method for its production The present invention relates to a powder-metallurgically produced composite material comprising a matrix and a granular additive comprising at least one fine-grained refractory metal with an average grain size of at most 2 μm uniformly distributed in th... | 11/06/2001 |
| 6309592 | Method for manufacturing roller carrier of vibration balance device A method for manufacturing the roller carrier of a vibration balance device, the roller carrier is installed with at least one round track around a rotary axis thereof for carrying a plurality of rollers; characterized in that: the roller carrier is made ... | 10/30/2001 |
| 6290902 | Method for producing Ti (C,N)--(Ti,Ta,W) (C,N)--Co alloys for cutting tool applications The present invention relates to a method for manufacturing a sintered body of carbonitride alloy with titanium as the main component and cobalt as the binder phase and which does not have any compositional gradients or center porosity concentration after... | 09/18/2001 |
| 6277326 | Process for liquid-phase sintering of a multiple-component material The use of liquid phase sintering for manufacturing a high density multiple component material is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component, a binding component and an anti-o... | 08/21/2001 |
| 6215093 | Selective laser sintering at melting temperature A method is disclosed for manufacturing a molded body, in accordance with three-dimensional CAD data of a model of a molded body, by depositing layers of a metallic material in powder form. Several layers of powder are successively deposited one on top of... | 04/10/2001 |
| 6214177 | Method of producing a silicon/aluminum sputtering target A method of producing a silicon aluminum sputtering target is provided. The target is formed from a powder base of between about 80% to about 95% by weight silicon and about 5% to about 20% by weight aluminum which is placed in a containment unit, heated ... | 04/10/2001 |
| 6200526 | Method of controlling infiltration of complex-shaped ceramic-metal composite articles and the products produced thereby A process for preparing complex-shaped, ceramic-metal composite articles, comprising: (a) contacting a non-wettable powder that is non-wetting to a metal to be used for infiltration with a shaped ceramic body to form a layer of the non-wettable powder on ... | 03/13/2001 |
| 6187260 | Aluminum metal matrix composite materials reinforced by intermetallic compounds and alumina whiskers A process for making composite materials, namely reinforced Al-metal matrix composites based on either: (I) Al--W intermetallic phase and Al2 O3 ceramic whiskers, or (II) Al--Mo intermetallic phase and Al2 O3 ce... | 02/13/2001 |
| 6156093 | High strength, ductility, and toughness tungsten heavy alloy (WHA) materials A method of imparting high strength, high ductility, and high fracture toughness to a refractory metal alloy workpiece includes: (i) subjecting the workpiece to at least one pass that reduces the initial cross-sectional area of said workpiece, (ii) anneal... | 12/05/2000 |
| 6147293 | Process for producing sintered thermoelectric semiconductor and sintered thermoelectric semiconductor A process for producing a sintered thermoelectric semiconductor includes a first step of forming bulk crystals of a thermoelectric semiconductor and a second step of hot extrusion. The second step includes substeps of placing the bulk crystals in the cavi... | 11/14/2000 |
| 6136105 | Process for imparting high strength, ductility, and toughness to tungsten heavy alloy (WHA) materials A method of imparting high strength, high ductility, and high fracture toughness to a refractory metal alloy workpiece includes: (i) subjecting the workpiece to at least one pass that reduces the initial cross-sectional area of said workpiece, (ii) anneal... | 10/24/2000 |
| 6126894 | Method of producing high density sintered articles from iron-silicon alloys A method of producing Iron-Silicon high density sintered articles of intricate design comprising: (a) the blending of compressible iron or low-carbon steel powder, silicon alloyed iron or silicon powder, or combination of silicon alloyed iron and silicon ... | 10/03/2000 |
| 6096111 | Exothermically sintered homogeneous composite and fabrication method A homogeneous sintered composite made by press-forming a homogeneous mixture of powders of an agglutinating component, a second component having a melting point higher then the agglutinating component, and an exothermically reactive component to form a co... | 08/01/2000 |
| 6074454 | Lead-free frangible bullets and process for making same The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or copper alloy powd... | 06/13/2000 |
| 6019936 | Method for manufacturing functionally gradient composite materials A method for manufacturing a dense and functionally gradient composite material is provided. The method includes steps of preparing a reactant compact made of composite materials, igniting the reactant compact so that a combustion wave is propagating on t... | 02/01/2000 |
| 5976456 | Method for producing aluminum alloy powder compacts This invention relates to a method for producing sintered parts of aluminum or aluminum alloy with improved mechanical properties using batch degassing, die compaction and liquid phase sintering. The batch degassing consists of holding a prealloyed alumin... | 11/02/1999 |
| 5976213 | Titanium-based carbonitride alloy with improved thermal shock resistance A titanium-based carbonitride cutting tool insert with superior thermal shock resistance is disclosed. This is accomplished by sintering the material under conditions where the melting process is reversed. The melt forms in the center of the material firs... | 11/02/1999 |
| 5970307 | Sintering method for tungsten-nickel-manganese type heavy alloy A sintering method for a W--Ni--Mn type heavy alloy, including controlling the deoxidization of tungsten and nickel under an inert atmosphere, changing to a hydrogen atmosphere at above a temperature at which manganese is deoxidized and simultaneously deo... | 10/19/1999 |
