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| Number | Title | Issue Date |
| 7731893 | Method for making anodes for electrolytic capacitor with high volumetric efficiency A method for manufacturing valve metal anodes of electrolytic capacitors by deoxidizing the anodes using Mg vapor in a deoxidizing furnace, removing the anodes from deoxidizing furnace, placing them in sintering furnace, sintering at temperature lower than the tempe... | 06/08/2010 |
| 7691323 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing A rare-earth alloy ingot is produced by melting an alloy composed of 20-30 wt % of a rare-earth constituent which is Sm alone or at least 50 wt % Sm in combination with at least one other rare-earth element, 10-45 wt % of Fe, 1-10 wt % of Cu and 0.5-5 wt % of Zr, wi... | 04/06/2010 |
| 7431981 | Polymer composite structure reinforced with shape memory alloy and method of manufacturing same A prepreg material infused with a bulk resin, where the bulk resin has shape memory alloy (SMA) particles intermixed in the resin to toughen the material when the material is used in an application and is cured. The SMA particles may be of various shapes and sizes. ... | 10/07/2008 |
| 7368079 | Method for forming ultra hard sintered compacts using metallic peripheral structures in the sintering cell A method for forming an ultra hard material layer is provided. The method includes disposing a metallic liner inside the periphery of a refractory metal enclosure, introducing ultra hard material feed stock into the enclosure, and sintering using HPHT processing and... | 05/06/2008 |
| 7361301 | System and method for consolidating powders This invention relates to a system and method for consolidating particulate material, such as particulate material, in order to achieve at least ninety-five percent (95%) or even ninety-eight percent (98%) of its maximum theoretical density using a relatively long d... | 04/22/2008 |
| 7326892 | Process of microwave brazing with powder materials A process for heating a powder material by microwave radiation so that heating of the powder material is selective and sufficient to cause complete melting of the particles. The process entails providing a mass of powder comprising a quantity of filler particles of ... | 02/05/2008 |
| 7325488 | Method of pressing a ceramic stacked layer structure A pressing device and a pressing method, wherein the method includes the steps of accommodating a stacked layer structure in a recess in a die body, and pressing the stacked layer structure in the recess of the die body between a bottom plate of the die body that fo... | 02/05/2008 |
| 7309374 | Diffusion bonded nickel-copper powder metallurgy powder In contrast to current industrial practice where alloying powders are added to starting powder metallurgy compositions either as powder mixtures or fully prealloyed powders, the present invention posits a diffusion bonded nickel-copper precursor additive mixture for... | 12/18/2007 |
| 7288224 | Method of producing a sputtering target A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of α, β, γ and δ thereof being in the relationship of 0.5≦α | 10/30/2007 |
| 7258753 | Superelastic guiding member An improved guiding member for use within a body lumen having a unique combination of superelastic characteristics. The superelastic alloy material has a composition consisting of about 30% to about 52% (atomic) titanium, and about 38% to 52% nickel and may have one... | 08/21/2007 |
| 7255933 | Multi-layer sliding part and a method for its manufacture A multi-layer sliding part is prepared by a process including mixing 1–50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5–20 mass % of Sn and a remainder of Cu to form a mixed powder, sinteri... | 08/14/2007 |
| 7195825 | Multi-layer sliding part and a method for its manufacture A multi-layer sliding part is prepared by a process including mixing 1–50 parts by volume of a Cu-plated solid lubricant powder with 100 parts by volume of a Cu-based alloy powder comprising 5–20 mass % of Sn and a remainder of Cu to form a mixed powder, sinteri... | 03/27/2007 |
| 7172725 | W-Cu alloy having homogeneous micro-structure and the manufacturing method thereof In W—Cu alloy having a homogeneous micro-structure and a fabrication method thereof, the method includes forming mixed powders by mixing tungsten powders with W—Cu composite powders; forming a compact by pressurizing-forming the mixed powders; forming a skeleton... | 02/06/2007 |
| 7138019 | Method for producing magnetostrictive element and sintering method In the step of sintering a compact that is finally to be a magnetostrictive element, when the temperature in a furnace is elevated, the atmosphere in the furnace is evacuated by a vacuum pump to keep the pressure in the furnace at negative pressure in a temperature ... | 11/21/2006 |
| 7115247 | Hydrogen storage compositions and methods of manufacture thereof Disclosed herein is a method for making and screening a combinatorial library, comprising disposing on a substrate comprising aluminum at least one reactant comprising lithium, germanium, magnesium, or a combination comprising at least one of the foregoing; heat tre... | 10/03/2006 |
| 7083760 | Method of forming a powder compact This invention provides a method of forming a powder compact which can produce a high density compact under a high pressure and at the same time can reduce pressure for ejecting the compact from a die. This method comprises the application step of applying a ... | 08/01/2006 |
| 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 |
| 7018485 | Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate. The casing defines an inner space for receiving a container. The contai... | 03/28/2006 |
| 6939509 | Method for manufacturing metal parts The invention relates to a method for producing metal bodies by mixing metal compound particles with a binding agent and compacting them to form shaped parts, whereby the binding agent is subsequently removed and the metal compound is reduced to metal by gassing the... | 09/06/2005 |
| 6914032 | Method of producing tungsten-copper based composite powder and sintered alloys for heat-sink using said composite powder The present invention relates to a method of producing W—Cu based composite powder, which is used in heat-sink materials for high-power integrated circuits, electric contact materials, etc, and to a method of producing a W—Cu based sintered alloy by using the co... | 07/05/2005 |
| 6755885 | Iron powder composition A powder composition for warm compaction comprising an iron-based powder and a lubricant powder consisting essentially of an amide described by the following formula D—Cm—B—A—B—Cm—D wherein D is —H, COR, CNHR, wherein R is a strai... | 06/29/2004 |
| 6733703 | Method for controlling the dimensions of bodies made from sinterable materials Precise control of the shrinkage upon sintering of bodies made from mixtures of particulate materials and organic binders is achieved through precision pycnometry of the particulate materials and of the resulting sintered bodies, thus allowing a single molding tool ... | 05/11/2004 |
| 6726740 | Weakly-magnetic sintered composite-material and a method for production thereof A sintered, magnetically soft composite is proposed, especially for use in solenoid valves, and a process for producing such a composite, in which initially a starting mixture from which the magnetically soft composite is formed after sintering is produced, having a... | 04/27/2004 |
| 6682780 | Protective system for high temperature metal alloy products A method for protecting low-carbon steel and stainless steel from coking and corrosion at elevated temperatures in corrosive environments, such as during ethylene production by pyrolysis of hydrocarbons or the reduction of oxide ores, by coating the stain... | 01/27/2004 |
| 6679933 | Low resistivity materials with improved wear performance for electrical current transfer and methods for preparing same A copper graphite composite material suitable for use in applications such as brushes, switches and contact materials for rail systems and other industrial devices. The composite comprises a copper network matrix having a plurality of pores containing gra... | 01/20/2004 |
| 6652806 | Method of producing a sputtering target A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of , ଲ, γ and δ thereof being in the relationship of 0.5ࣘ | 11/25/2003 |
| 6554609 | Nanotechnology for electrical devices Nanostructured non-stoichiometric non-equilibrium materials are disclosed. Novel electromagnetic materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for develop... | 04/29/2003 |
| 6511758 | Porous structure body and method of forming it A porous structural material having a solid shape with a curved surface of which the dimensional accuracy is high and the uses are wide is produced. The porous structural material is made form metallic chips containing at least one kind of ingredients, an... | 01/28/2003 |
| 6447570 | Sintered Tantalum and Niobium capacitor pellets doped with Nitrogen, and method of making the same A pellet for use in electrolytic capacitors is comprised of a powder selected from one of Tantalum and Niobium. The pellet is porous, free from oxygen, annealed by heat, and diffused with nitrogen with all these attributes being achieved in an oxygen free... | 09/10/2002 |
| 6436163 | Metal filter for high temperature applications A porous metal filter possessing enhanced anticorrosive properties is provided including sintered metal particles composed of an alloy composition of iron aluminide having a range in concentration corresponding to Fe3 Al to FeAl phases and havi... | 08/20/2002 |
| 6432157 | Method for preparing Ag-ZnO electric contact material and electric contact material produced thereby An object of the present invention is to provide a method of producing an Ag--ZnO electric contact material which can uniformly disperse ZnO micrograms in Ag; which maintains low contact resistance; which exhibits enhanced welding resistance and wear resi... | 08/13/2002 |
| 6375709 | Lubricant for metallurgical powder compositions This invention concerns a lubricant for warm compaction of iron-based metallurgical powder compositions. 50 to 100% by weight of the lubricant is a polyester, aromatic or partly aromatic, which has a number-average molecular weight Mn of 5,000-... | 04/23/2002 |
| 6365095 | Warm compaction of steel powders The present invention concerns a process of preparing high density, warm compacted bodies of a stainless steel powder comprising the steps of providing a mixture of a low carbon, low oxygen stainless steel powder including 10-30% by weight of Cr, optional... | 04/02/2002 |
| 6358298 | Iron-graphite composite powders and sintered articles produced therefrom An iron-graphite composite powder having a microstructure comprising carbon clusters embedded in a ferrous matrix is disclosed. Also disclosed is a process for preparing the iron-graphite composite powder, a process for preparing sintered articles from th... | 03/19/2002 |
| 6350406 | METHOD OF MANUFACTURING ANODE UNIT FOR SOLID ELECTROLYTIC CAPACITOR, ANODE UNIT FOR SOLID ELECTROLYTIC CAPACITOR, CONTINUOUS SINTERING APPARATUS, AND METHOD OF MANUFACTURING SECONDARY PARTICLES OF VALVE-ACTION METAL POWDER A method of manufacturing a sintered anode unit for a solid electrolytic capacitor is provided. According to this method, a press-molded or compacted pellet of a valve-action metal powder is sintered at a predetermined high temperature and in a predetermi... | 02/26/2002 |
| 6348080 | Steel powder for the preparation of sintered products The present invention concerns a method of preparing a sintered product having a tensile strength 750 MPa comprising the steps of compacting a water-atomised, annealed iron-based powder comprising, by weight %, Cr 2.5-3.5, Mo 0.3-0.7, Mn 0.09-0.3, O | 02/19/2002 |
| 6338816 | Nitrided niobium powders and niobium electrolytic capacitors A nitrogen containing niobium powder is disclosed as well as electrolytic capacitors formed from the niobium powders. Methods to reduce DC leakage in a niobium anode are also disclosed.... | 01/15/2002 |
| 6294130 | Method of manufacturing metallic products such as sheet by cold working and flash anealing A metallic alloy composition is manufactured into products such as press formed or stamped products or rolled products such as sheet, strip, rod, wire or band by one or more cold working steps with intermediate or final flash annealing. The method can inc... | 09/25/2001 |
| 6280683 | Metallurgical compositions containing binding agent/lubricant and process for preparing same Improved methods for coating particulate materials at low shear conditions and preferably below the melting point of the coating material are provided. In one aspect, metallurgical compositions are provided that contain a metal-based powder bound to an al... | 08/28/2001 |
| 6280496 | Silicon carbide based composite material and manufacturing method thereof A silicon carbide based composite material includes as a first component, a metal mainly consisting of aluminum or copper, and as a second component, particles mainly consisting of silicon carbide having high purity and few defects. The material is obtain... | 08/28/2001 |
