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| Number | Title | Issue Date |
| 8147586 | Method for producing molybdenum metal powder Method for producing molybdenum metal powder. The invention includes introducing a supply of ammonium molybdate precursor material into a furnace in a first direction and introducing a reducing gas into a cooling zone in a second direction opposite to the first dire... | 04/03/2012 |
| 8114186 | Method for producing iron powder respectively microalloyed steel powder mainly for metallurgical applications and method for producing thereof A method for manufacturing of iron—respectively micro-alloyed steel powders, starting from fluffy spray roasted iron oxides exhibiting a specific surface area in excess of 2.0 m2/g and residual chloride contents over 440 ppm Cl′, decrease the chloride... | 02/14/2012 |
| 7988760 | Method of making nanocrystalline tungsten powder There is described a method of making a nanocrystalline tungsten powder that comprises: (a) heating a tungsten-containing material in a reducing atmosphere at an intermediate temperature of from about 600° C. to about 700° C. for an intermediate time period; the t... | 08/02/2011 |
| 7959707 | Methods for producing consolidated materials Aspects of the invention include methods for producing purified semiconductor or metallic materials. In one embodiment, the methods include admixing a particulate composition of a material, for instance, a metal, with a metal halide to produce a metal-metal halide a... | 06/14/2011 |
| 7736414 | Rhenium nanoparticles Rhenium nanoparticle mixtures and methods for making the same are provided. The rhenium nanoparticle mixture can be painted onto a surface to be coated and dried at low temperatures to form a gas-tight elemental rhenium coating. Moreover, the rhenium nanoparticle mi... | 06/15/2010 |
| 7604679 | Fine nickel powder and process for producing the same An efficient process for producing fine nickel powder, capable of metallizing the powder at low temperature to prevent its sintering, and fine nickel powder produced by the process, composed of particles having a flat shape, diameter of limited variations and unifor... | 10/20/2009 |
| 7481864 | Conversion of TaOto Ta metal Processes for producing valve metal are described, in which valve metal oxide is converted to valve metal using a vapor-phase transport agent to form a gaseous valve metal species in the presence of a solid getter material. Also described is the valve metal so produ... | 01/27/2009 |
| 7431751 | Magnesium removal from magnesium reduced metal powders A method of producing a refractory metal powder that includes providing a metal powder containing magnesium tantalate or magnesium niobate; and heating the powder in an inert atmosphere in the presence of magnesium, calcium and/or aluminum to a temperature sufficien... | 10/07/2008 |
| 7419528 | Method for fabricating a superalloy article without any melting A metallic article made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds contains more of a base-metal element, such as nickel, cobal... | 09/02/2008 |
| 7419529 | Method of forming fine particle array on substrate and semiconductor element An object of the present invention is to provide a method of forming fine particles on a substrate in which reoxidization of reduced fine particles is suppressed. Reduced fine particles (FeO fine particles) are formed by embedding metal oxide fine particles (Fe... | 09/02/2008 |
| 7407526 | Food additive The invention concerns an iron powder for fortifying foodstuff. The powder consists of a reduced iron powder having irregularly shaped particles, wherein the iron powder has a ratio AD:PD less than 0.3, wherein AD is the apparent density in g/cm3, and PD ... | 08/05/2008 |
| 7399335 | Method of preparing primary refractory metal A method of preparing primary refractory metals (e.g., primary tantalum metal) by contacting a particulate refractory metal oxide (e.g., tantalum pentoxide) with a heated gas (e.g., a plasma), is described. The heated gas comprises hydrogen gas. The temperature rang... | 07/15/2008 |
| 7361205 | Method for production of metallic elements of high purity such as chromes The invention relates to a method of producing granules made of high purity metal or metal alloy, in particular based on chromium, the method being characterized in that it comprises the steps consisting in: preparing a metal or a metal alloy having non-metallic inc... | 04/22/2008 |
| 7354472 | Metalothermic reduction of refractory metal oxides A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at ... | 04/08/2008 |
| 7316725 | Copper powders methods for producing powders and devices fabricated from same Copper metal powders, methods for producing copper metal powders and products incorporating the powders. The copper metal powders have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the metal particles in a co... | 01/08/2008 |
| 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 |
| 7300492 | Ammonium dodecamolybdomolybdate and method of making A novel molybdenum compound, ammonium dodecamolybdomolybdate (AMM), is described which may be used in the manufacture of molybdenum metal and molybdenum carbide powders. The molybdenum compound is a dodecaheteropoly acid salt having a Keggin-type structure wherein m... | 11/27/2007 |
| 7276102 | Molybdenum metal powder and production thereof Molybdenum metal powder, and method for production thereof. Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters2/gram (m2/g) and about 3.0 m2/g, as determined by BET analysis, in combination... | 10/02/2007 |
| 7273509 | Synthesis of metal nanoparticle compositions from metallic and ethynyl compounds A process of making metal nanoparticles comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound,... | 09/25/2007 |
| 7274552 | Niobium for capacitor and capacitor using sintered body of the niobium 1. A niobium powder for capacitors, wherein the chromium content is 50 ppm by mass or less, granulated product and sintered body thereof, and producing method of those; 2. a capacitor constructed by one part electrode formed of the niobium sintered body, another par... | 09/25/2007 |
| 7258722 | Process for manufacturing ultra fine TiC-transition metal-based complex powder Any one of a Ti-containing water-soluble salt, metatitanic acid (TiO(OH)2) slurry and ultra fine titanium oxide powder, and a transition metal containing metal salt are dissolved in water to prepare a raw material mixture. The raw material is spray-dried ... | 08/21/2007 |
| 7241436 | Methods to partially reduce certain metal oxides and oxygen reduced metal oxides Methods to at least partially reduce valve metal oxides are described wherein the process includes heat treating the valve metal oxide in the presence of a getter material, in an atmosphere which permits the transfer of oxygen atoms from the starting valve metal oxi... | 07/10/2007 |
| 7220397 | Modified oxygen reduced valve metal oxides Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and/or lubricants. Methods to form the pressed material are also described, such as with the use of atomizing, spray drying, fluid bed process... | 05/22/2007 |
| 7204866 | Niobium or tantalum powder and method for production thereof, and solid electrolytic capacitor A niobium or tantalum powder of the present invention comprises aggregates in which primary particles of niobium or tantalum are aggregated, and have a pore distribution having a peak in the range from 1 to 20 μm as measured by mercury porosimetry. That is, the nio... | 04/17/2007 |
| 7192467 | Method for producing molybdenum metal and molybdenum metal Novel forms of molybdenum metal, and apparatus and methods for production thereof. Novel forms of molybdenum metal are preferably characterized by a surface area of substantially about 2.1 m2/g to substantially about 4.1 m2/g. Novel forms of mo... | 03/20/2007 |
| 7172663 | Palladium-containing particles, method and apparatus of manufacture, palladium-containing devices made therefrom Provided are palladium-containing powders and a method and apparatus for manufacturing the palladium-containing particles of high quality, of a small size and narrow size distribution. An aerosol is generated from liquid feed and sent to a furnace, where liquid in d... | 02/06/2007 |
| 7156893 | Method of making niobium and other metal powders Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC le... | 01/02/2007 |
| 7153340 | Process for manufacturing nano-phase TaC-transition metal based complex powder Ultra fine TaC-transition metal based complex powder is prepared by: dispersing a mixture of a Ta-containing material and a transition metal-containing water soluble salt into a solvent; stirring the mixture and spray-drying the stirred material to obtain precursor ... | 12/26/2006 |
| 7150776 | Metalothermic reduction of refractory metal oxides High purity refractory metals, valve metals, refractory metal oxides, valve metal oxides, or alloys thereof suitable for a variety of electrical, optical and mill product/fabricated parts usages are produced from their respective oxides by metalothermic reduction of... | 12/19/2006 |
| 7149074 | Methods of making a niobium metal oxide Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter ... | 12/12/2006 |
| 7144546 | Nitrided valve metals and processes for making the same Nitrided valve metals are described, such as nitrided tantalum and nitrided niobium. The nitrided valve metals preferably have improved flow properties, higher Scott Densities, and/or improved pore size distribution which leads to improved physical properties of the... | 12/05/2006 |
| 7142408 | Tantalum powders and methods of producing same Methods of forming tantalum powders and other valve metal powders are described. The method involves high impact milling a starting powder in a fluid medium and optionally a milling media using a high energy mill. The methods of the present invention have the abilit... | 11/28/2006 |
| 7135141 | Method of manufacturing a sintered body A method of manufacturing a sintered body, in which a material powder composed of metallic powder or alloy powder, a getter material having a higher oxidation potential than that of the material powder, and a hydride, which constitutes a hydrogen source, are sealed ... | 11/14/2006 |
| 7132005 | Molybdenum metal Novel forms of molybdenum metal, and apparatus and methods for production thereof. Novel forms of molybdenum metal are preferably characterized by a surface area of substantially 2.5 m2/g. Novel forms of molybdenum metal are also preferably characterized ... | 11/07/2006 |
| 7122069 | Mo-Cu composite powder A Mo—Cu composite powder is provided which is comprised of individual finite particles each having a copper phase and a molybdenum phase wherein the molybdenum phase substantially encapsulates the copper phase. The composite powder may be consolidated by conventio... | 10/17/2006 |
| 7097686 | Nickel powders, methods for producing powders and devices fabricated from same Nickel powder batches and methods for producing nickel powder batches. The powder batches include particles having a small particle size, narrow size distribution and a spherical morphology. The present invention is also directed to devices incorporating the nickel ... | 08/29/2006 |
| 7066979 | Valve metal powders and process for producing them Process for producing a valve metal powder by producing a precursor of desired morphology, converting the precursor into an oxide of the valve metal, stabilizing the structure of the oxide by heat treatment and reducing the stabilized oxide while retaining the morph... | 06/27/2006 |
| 7066980 | Method for manufacturing metal powder A method in which a metal powder is produced by ejecting a thermally decomposable metal compound powder into a reaction vessel through a nozzle together with a carrier gas under the condition V/S>600, where V is the flow rate of the carrier gas per unit time (liter/... | 06/27/2006 |
| 7066976 | Method for the production of electrocatalyst powders Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by ... | 06/27/2006 |
| 7060121 | Method of producing gold nanoparticle A method for producing gold nanoparticles is disclosed. When gold salt solution is mixed with an adsorbent, gold in the form of complexes is adsorbed onto the surface of the adsorbent. The gold-loaded adsorbent, after being separated from the solution by screening, ... | 06/13/2006 |
