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| Number | Title | Issue Date |
| 8071016 | Thin walled powder metal component manufacturing A method is disclosed of forming a powder metal compact. Powder metal is placed in an annular space of a compaction die tool set in which the annular space has inner and outer cylindrical surfaces that form inner and outer cylindrical surfaces of the powder metal co... | 12/06/2011 |
| 8017070 | Direct to metal sintering of 17-4PH steel A method of sintering a 17-4PH alloy powder and a sintered 17-4PH sintered part are disclosed. The part is formed by selective laser sintering a 17-4PH alloy powder and binder mixture to form a green part that is sintered to form a part having a substantially pure m... | 09/13/2011 |
| 7749430 | Member for semiconductor device and production method thereof A member for a semiconductor device of low price, capable of forming a high quality plating layer on a surface, having heat conductivity at high temperature (100° C.) of more than or equal to 180 W/m·K and toughness that will not cause breaking due to screwing, an... | 07/06/2010 |
| 7651659 | Manufacturing method of sinter forged aluminum parts with high strength Disclosed is a manufacturing method of sinter forged aluminum-based parts with high strength. In the manufacturing method, prepared is a raw material powder comprising, by mass: 3.0 to 10% zinc; 0.5 to 5.0% magnesium; 0.5 to 5.0% copper; inevitable amount of impurit... | 01/26/2010 |
| 7387763 | Preparation of sheet by injection molding of powder, consolidation, and heat treating A sheet is prepared by mixing a mass of metallic powders with a temporary thermoplastic binder to form an injection-moldable mixture, thereafter injection molding the injection-moldable mixture to form a sheet precursor. The sheet precursor is consolidated to a rela... | 06/17/2008 |
| 7314498 | Sintered alloys for cam lobes and other high wear articles An iron-based sintered powder metal article for cam lobe and other high temperature, high wear applications requiring excellent net-shape stability during sintering comprises a powder metal mixture consisting essentially of, by weight, 0.5–3.0% Mo, 1–6.5% Cr, 1â... | 01/01/2008 |
| 7309465 | Sintered sprocket for silent chain and production method therefor A sintered sprocket for a silent chain is obtained from a material with few addition elements by a simple densifying method. The sintered sprocket is made of an ferrous material having an ovarall composition containing Cu at 1 to 2%, C at 0.5 to 0.8%, Mn as an inevi... | 12/18/2007 |
| 7270782 | Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys Pressure powder metallurgy process for consolidating refractory or rhenium alloys using a reduced temperature and elevated pressure. Rhenium metal has high temperature strength and wear resistance but has a very high melting point as a pure metal and thus is difficu... | 09/18/2007 |
| 7246439 | Process for mechanically forming undercuts on sintered shaped parts based on iron A relatively economical process allows producing sintered shaped parts, such as sliding sleeves in motor vehicle transmissions. Open-pored undercut surfaces are formed at an internal toothing by hypocycloid milling of the part prior to its final hardening. ... | 07/24/2007 |
| 7196009 | Lapping carrier, apparatus for lapping a wafer and method of fabricating a lapping carrier A method of fabricating a lapping carrier is provided that includes the steps of defining at least one opening extending through a workpiece that is sized to receive a wafer, and cryogenically tempering the workpiece to produce a lapping carrier. By cryogenically te... | 03/27/2007 |
| 7175802 | Refurbishing spent sputtering targets Spent sputtering targets are refurbished by filling the depleted region of the target with new sputter material using a hot isostatic pressing or HIP'ing technique. ... | 02/13/2007 |
| 7166255 | Method for manufacturing a cam The temporary compacting of the powder for use in sintering is carried out, the temporary sintering is carried out, the main compacting is carried out, the main sintering is carried out, and the thickness of the radius direction of the base part of the cam before th... | 01/23/2007 |
| 7108830 | Apparatus and method for fabricating high purity, high density metal matrix composite materials and the product thereof A method of production of large Ingots of neutron attenuating composites using a vacuum-bellows system allows for large cross-sectional shapes to be extruded and rolled. This method uses a vacuum-bellows technology which allows the manufacturing of large 8–16 inch... | 09/19/2006 |
| 7070856 | Front face erasable microcapsule magnetophoretic display sheet, erasing magnet and writing magnet Disclosed herein is a front face erasable microcapsule magnetophoretic display sheet having a support and a solid dispersion layer provided on one surface of the support and composed of microcapsules having an average particle diameter of 50 to 650 μm, in which a l... | 07/04/2006 |
| 7052809 | Membrane and reticle-pellicle apparatus with purged pellicle-to-reticle gap using same A gas porous media which comprises a material having a low coefficient of thermal expansion that is capable of retaining 99.99% or more of particles of a size of about 0.003 microns and larger at 0.2 slpm/cm2 while demonstrating a permeability of 3.5×10 | 05/30/2006 |
| 6994756 | Method of producing sintered rare earth magnetic alloy wafer A method of producing a sintered rare earth magnetic alloy wafer comprises a step of using a cutter to slice a wafer of a thickness of not greater than 3 mm from a sintered rare earth magnetic alloy having ferromagnetic crystal grains surrounded by a more readily gr... | 02/07/2006 |
| 6974012 | Sliding collar produced by powder metallurgy A sliding collar has claw internal toothing and teeth projecting from at least one of the end surfaces. The individual teeth have lateral surfaces configured as lateral surfaces of a cone segment or as lateral surfaces of a cone segment and one or more truncated-con... | 12/13/2005 |
| 6974558 | Susbstrate material for mounting a semiconductor device, substrate for mounting a semiconductor device, semiconductor device, and method of producing the same To provide a substrate material made of an aluminum/silicon carbide composite alloy which has a thermal conductivity of 100 W/m×K or higher and a thermal expansion coefficient of 20×10−6/° C. or lower and is lightweight and compositionally homogeneou... | 12/13/2005 |
| 6946096 | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered met... | 09/20/2005 |
| 6921510 | Method for preparing an article having a dispersoid distributed in a metallic matrix An article has a metallic matrix made of its constituent elements with a dispersoid distributed therein. The article is prepared by furnishing at least one nonmetallic matrix precursor compound. All of the nonmetallic matrix precursor compounds collectively include ... | 07/26/2005 |
| 6893560 | Filter container having a mounting plate formed of sintered metal Mounting plates used to mount filter elements within cylindrical canisters are made from sintered powdered materials, such as sintered powdered metal in order to reduce engineering and tooling lead time as well as to reduce costs. By making a mounting plate of sinte... | 05/17/2005 |
| 6814927 | Fabrication method of nanostructured tungsten carbide bulk material A nanostructured tungsten carbide bulk material, sintered from tungsten carbide and metal such as cobalt nano-powders, comprises a tungsten carbide and a metallic binder such as cobalt phases. The tungsten carbide phase has nanostructures comprising a plurality of d... | 11/09/2004 |
| 6751832 | Piezoelectric/electrostrictive device and production method thereof A method of manufacturing a piezoelectric/electrostrictive device includes the following steps. An integrated layered body is obtained by laminating at least one green sheet that is to be a thin plate, at least one green sheet having at least one rectangular-shaped ... | 06/22/2004 |
| 6733723 | Method for producing sintered metal and a rotary compressor flange produced by use of the method A method to produce a sintered metal with an improved abrasion resistance and durability, and a rotary compressor flange produced by use of the method. The sintered metal is produced by kneading metal powder, pressure molding the kneaded powder, and sintering the mo... | 05/11/2004 |
| 6716389 | Tantalum and tantalum nitride powder mixtures for electrolytic capacitors substrates A process for producing sintered pellets made from blends of refractory metal and refractory metal nitride powders were found to have a higher fraction of intra-agglomerate pores than those made from the refractory metal or refractory metal nitride alone resulting i... | 04/06/2004 |
| 6696014 | Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density A sintered iron-based powder metal body with lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density.... | 02/24/2004 |
| 6682581 | Nickel-poor austenitic steel Low-nickel austenitic steel which contains iron and the following components: Manganese: less than 17.0% by weight; Chromium: more than 21.0 and not more than 26.0% by weight; Molybdenum: less than 1.50% by weight; Nitrogen: more than 0.70 and not m... | 01/27/2004 |
| 6670048 | Sintered sprocket A sintered sprocket is provided in which surface pressure resistance can be improved without using a forging processing. An Fe-based sintered alloy which contains C at 0.2 to 0.5% by weight, Mo at 0.2 to 1.0% by weight, and Ni at 0.2 to 1.0% by weight, an... | 12/30/2003 |
| 6651328 | Method for manufacturing sliding parts for hermetic compressor A method for manufacturing a sliding part for a hermetic compressor is disclosed. Since the abrasion resistance and corrosion resistance of the sliding part is increased, the energy consumption efficiency is improved and the performance of the compressor ... | 11/25/2003 |
| 6641640 | Hard material sintered compact with a nickel- and cobalt-free, nitrogenous steel as binder of the hard phase Hard sintered moldings having a nickel- and cobalt-free, nitrogen-containing steel as a binder of the hard phase, processes for the powder metallurgical production of these hard sintered moldings, in particular by powder injection molding, and powder inje... | 11/04/2003 |
| 6638474 | method of making cemented carbide tool A coated cemented carbide tool, and a method for making the same, wherein the as-sintered substrate is formed by sintering in an atmosphere having at least a partial pressure and for a part of the time a nitrogen partial pressure.... | 10/28/2003 |
| 6630101 | Method for producing powder metal gears A method of producing a gear from a metallurgical powder includes molding at least a portion of the powder to provide a gear preform. The gear preform is sintered and hot formed, and subsequently may be carburized. The gear preform is resintered and coole... | 10/07/2003 |
| 6592807 | Method of making a porous tire tread mold A method of making a tire mold segment with a porous metal tread surface for a tire mold wherein an annular segmental tire model of refractory material is formed with tire model segments which are used to shape and form each tire mold segment from powdere... | 07/15/2003 |
| 6562289 | Method for improving the corrosion protection of permanent magnets containing rare earth metals The invention relates to a method for producing a sintered material offering improved corrosion protection by activation and coating of the surface with a metal, followed by a heat treatment. Said method is characterized in that during activation and befo... | 05/13/2003 |
| 6533996 | Method and apparatus for metal processing A method for metal processing is provided in which a cooling atmosphere comprising hydrogen is used for accelerated cooling of a processed metal part in a furnace, resulting in improved properties for the metal part. A sintering furnace is also provided a... | 03/18/2003 |
| 6524523 | Method for forming dresser of chemical mechanical polishing pad A method for forming dresser of chemical mechanical polishing pad, firstly to make a stainless steel bottom seat. Then preparing metal welding powder and organic glue, mixing the aforesaid metal welding powder, organic glue and adequate ratio of water to ... | 02/25/2003 |
| 6521174 | Method of forming polycrystalline diamond cutters having modified residual stresses The residual stresses that are experienced in polycrystalline diamond cutters, which lead to cutter failure, can be effectively modified by selectively thinning the carbid substrate subsequent to a high-temperature, high-pressure (sinter) processing, by s... | 02/18/2003 |
| 6508980 | Metal and ceramic containing parts produced from powder using binders derived from salt Parts made from powder use a material that originates from a salt to bind powder particles together. The salt may be provided dissolved in a solution, as molten salt, or as a dry powder. The figure is an electron micrograph of a cross section of a silver ... | 01/21/2003 |
| 6500384 | Process for the hardening treatment of sintered members The present invention provides a process for the hardening treatment of sintered members which can impart sufficient wear resistance thereto at low cost without causing a reduction in dimensional accuracy due to heat distortion. This process for the harde... | 12/31/2002 |
| 6482352 | Method of manufacturing watch-bracelet component A method of the present invention manufactures a watch-bracelet component through step (1A) of producing a green body containing a raw material powder by extrusion molding, step (2A) of cutting the green body, step (3A) of debinding the cut green body, an... | 11/19/2002 |
