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| Number | Title | Issue Date |
| 8012235 | Process for producing low-oxygen metal powder A process for producing a low-oxygen metal powder, comprising passing a raw metal powder coated by hot melting of a hydrocarbon organic compound through thermal plasma flame composed mainly of an inert gas so as to reduce the content of oxygen in the raw metal powde... | 09/06/2011 |
| 7981190 | Ultrafine alloy particles, and process for producing the same The Ultrafine alloy particles of an alloy includes a primary metal and one or more subsidiary metals solid-soluble in said primary metal, a content of the one or more subsidiary metals is in a range of 1 wt % to 25 wt % and the one or more subsidiary metals solid-so... | 07/19/2011 |
| 7967891 | Method producing metal nanopowders by decompositon of metal carbonyl using an induction plasma torch A process for synthesizing metal nanopowders by introducing metal carbonyl into an induction plasma torch. By taking advantage of the much lower dissolution temperature of carbonyl as opposed to the high melting temperature of conventional metal powder feeds less to... | 06/28/2011 |
| 7708800 | Metal nanoparticle with support, continuous metal nanoparticle body, and methods for producing these There is disclosed a method for producing a supported metal nanoparticle, which has the steps of adsorbing a metal ion-containing compound to a support of an organic material and reducing the adsorbed metal ion to form a metal nanoparticle on the support. In the pro... | 05/04/2010 |
| 7691177 | Method and an apparatus of plasma processing of tantalum particles Porous microparticles of high-purity tantalum may be processed in a vacuum plasmatron using a hollow cathode and spraying apparatus in which the coolant is in the form of a metal surface. In one embodiment, the initial powder of tantalum is introduced through a coax... | 04/06/2010 |
| 7615097 | Nano powders, components and coatings by plasma technique Ultra fine and nanometer powders and a method of producing same are provided, preferably refractory metal and ceramic nanopowders. When certain precursors are injected into the plasma flame in a reactor chamber, the materials are heated, melted and vaporized and the... | 11/10/2009 |
| 7582135 | Process for producing ultrafine particles The ultrafine particle producing process introduces materials for producing ultrafine particles into a thermal plasma flame under reduced pressure to form a vapor-phase mixture, introduces a reactive gas and a cooling gas toward an end portion of the thermal plasma ... | 09/01/2009 |
| 7520914 | Nickel powder for use as electrodes in base metal electrode multilayered ceramic capacitors The invention relates to new and useful nickel powders, particularly powders for use as an electrode material. ... | 04/21/2009 |
| 7494527 | Process for plasma synthesis of rhenium nano and micro powders, and for coatings and near net shape deposits thereof and apparatus therefor The process for the synthesis of rhenium powders comprises the injection of ammonium perrhenate powder through a carrier gas in a plasma torch of a plasma reactor operated using a mixture including hydrogen as the plasma gas, yielding metallic rhenium under the foll... | 02/24/2009 |
| 7431750 | Nanostructured metal powder and method of fabricating the same The present invention relates to a nanostructured metal powder and a method of fabricating the same. A twin-wire electric arc process is performed to melt the wire tips, and metal melt is formed. Simultaneously, the metal melt is broken up into melt droplets by an a... | 10/07/2008 |
| 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 |
| 7374598 | Methods and apparatus for spray forming, atomization and heat transfer The present invention is directed to methods and apparatus that use electrostatic and/or electromagnetic fields to enhance the process of spray forming preforms or powders. The present invention also describes methods and apparatus for atomization and heat transfer ... | 05/20/2008 |
| 7323655 | Inductively coupled plasma reactor for producing nano-powder Disclosed herein is a high-frequency induction plasma reactor apparatus for producing nano-powder, which is configured to continuously manufacture nano-powder in large quantities using solid-phase powder as a starting raw material and to manufacture high-purity nano... | 01/29/2008 |
| 7318844 | Laser-irradiated metallized electroceramic The manufacturing method for an electroceramic component (1), for example a varistor (1), comprises a laser irradiation of a part (5; 6) of the surface of an electroceramic body (2) before a metallization (3; 4) is applied to the p... | 01/15/2008 |
| 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 |
| 7300672 | Titanium-group metal containing high-performance water, and its producing method and apparatus Produce titanium-group metal micro-dispersion water that contains ion vapor of titanium-group metal in micro-dispersed state and that can be used as a material for health products, medical products, cosmetics, etc., by using an apparatus comprising a water tank, a h... | 11/27/2007 |
| 7300491 | Method and apparatus for the production of metal powder Provide a method and apparatus for producing, in an economical manner, metal powder offering high purity and comprising uniform particle shape and size. Produce metal powder of titanium metal, etc., using an apparatus that comprises a power supply for high-voltage/c... | 11/27/2007 |
| 7229485 | Plasma reduction processing of materials In a process for the reduction of a metalliferous ore or concentrate the ore or concentrate is first prepared into a particulate form. A reaction chamber (3, 103, 203, 301, 401, 503, 603, 702) is then charged with ore or concentrate, a reductant and an input ... | 06/12/2007 |
| 7137436 | Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby direct arc electrodes melt ... | 11/21/2006 |
| 7097691 | Method for producing pigment nano-particles Method for producing pigment nano-particles may include vaporizing a pigment precursor material; drawing the vaporized pigment precursor material into a precipitation conduit; contacting the vapor in the precipitation conduit with a collection fluid at a first locat... | 08/29/2006 |
| 7067197 | Powder metallurgy sputtering targets and methods of producing same A method of forming a sputtering target and other metal articles having controlled oxygen and nitrogen content levels and the articles so formed are described. The method includes surface-nitriding a deoxidized metal powder and further includes consolidating the pow... | 06/27/2006 |
| 7060350 | COMPOSITE MAGNETIC MATERIAL AND MAGNETIC MOLDING MATERIAL, MAGNETIC POWDER COMPRESSION MOLDING MATERIAL, AND MAGNETIC PAINT USING THE COMPOSITE MAGNETIC MATERIAL, COMPOSITE DIELECTRIC MATERIAL AND MOLDING MATERIAL, POWDER COMPRESSION MOLDING MATERIAL, PAINT, PREPREG, AND SUBSTRATE USING THE COMPOSITE DIELECTRIC MATERIAL, AND ELECTRONIC PART A composite magnetic material including a resin and generally spherical magnetic metal particles of at least one type dispersed in the resin and consisting essentially of single crystal grains, the metal particles having a mean particle size of 0.1 to 10 μm and eac... | 06/13/2006 |
| 7022155 | Plasma arc reactor for the production of fine powders A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first ele... | 04/04/2006 |
| 6989127 | Health ornament containing titanium powder and method for manufacturing thereof Manufacture health ornaments such as necklaces, bracelets and wristbands that provide sufficient health-promoting function and effective therapeutic action for a long time, by burning a gaseous mixture of oxygen and hydrogen in high-pressure water, using the resulta... | 01/24/2006 |
| 6939389 | Method and apparatus for manufacturing fine powders The manufacture of pure, fine spherical powders has always been a problem for many materials, particularly for high-melting and highly reactive materials such as titanium, tantalum, vanadium and zirconium. The present invention provides a process and apparatus for p... | 09/06/2005 |
| 6934146 | Niobium powder, niobium sintered body and capacitor using the sintered body A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, and average particle size of 10 to 1000 μmum, angle of repose form 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurity of pore diameter peak tops in t... | 08/23/2005 |
| 6924004 | Apparatus and method for synthesizing films and coatings by focused particle beam deposition A particle beam deposition apparatus includes a particle source for generating a plurality of particles in suspended form, an expansion chamber, and a deposition chamber connected to the expansion chamber by an aerodynamic focusing stage, and containing a substrate.... | 08/02/2005 |
| 6821500 | Thermal synthesis apparatus and process An apparatus for thermal conversion of one or more reactants to desired end products includes an insulated reactor chamber having a high temperature heater such as a plasma torch at its inlet end and, optionally, a restrictive convergent-divergent nozzle at its outl... | 11/23/2004 |
| 6786950 | High purity fine metal powders and methods to produce such powder Methods of producing metal and alloy fine powders having purity in excess of 99.9%, preferably 99.999%, more preferably 99.99999% are discussed. Fine submicron and nanoscale powders discussed include various shapes and forms including spheres, rods, whiskers, platel... | 09/07/2004 |
| 6755886 | Method for producing metallic microparticles Method for producing metallic particles. The method converts metallic nanoparticles into larger, spherical metallic particles. An aerosol of solid metallic nanoparticles and a non-oxidizing plasma having a portion sufficiently hot to melt the nanoparticles are gener... | 06/29/2004 |
| 6689192 | Method for producing metallic nanoparticles Method for producing metallic nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating non-oxidizing plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal va... | 02/10/2004 |
| 6676728 | Sputtering target, method of making same, and high-melting metal powder material There is provided a method of making a high-melting metal powder which has high purity and excellent formability and, particularly, of a metal powder of spherical particles made of Ta, Ru, etc. having a higher melting point than iron. There is also provid... | 01/13/2004 |
| 6428600 | Process for producing spheroidized hard material powder The spheroidized hard material powders are produced by introducing a finely ground basic mixture of hard material into a thermal, inductively coupled high-frequency plasma so that at the same time a chemical conversion reaction to form an alloy and/or che... | 08/06/2002 |
| 6379419 | Method and transferred arc plasma system for production of fine and ultrafine powders The present invention is concerned with a method for the production of fine and ultrafine powders of various materials such as metals, alloys, ceramics, composites etc., through a transferred arc plasma system. The method comprises vaporizing or decomposi... | 04/30/2002 |
| 6277169 | Method for making silver-containing particles Provided are silver-containing powders and a method and apparatus for manufacturing the silver-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... | 08/21/2001 |
| 5958105 | Process for preparing metallic beryllium pebbles A method for stably producing metal beryllium pebbles each ranging from 0.1 to 1.8 mm in particle diameter and 0.05 to 0.6 mm in crystal grain average diameter. The metal beryllium pebbles obtained by the invention are excellent not only in tritium emissi... | 09/28/1999 |
| 5935461 | Pulsed high energy synthesis of fine metal powders Repetitively pulsed plasma jets generated by a capillary arc discharge at high stagnation pressure (>15,000 psi) and high temperature (>10,000 K) are utilized to produce 0.1-10 μm sized metal powders and decrease cost of production. The plasma jets impac... | 08/10/1999 |
| 5855642 | System and method for producing fine metallic and ceramic powders A system and method for producing fine powders. The system includes a rotary atomization device for forming a moving flow of a molten source material; a source of atomizing material; a nozzle for directing a jet of the atomizing material at the moving flo... | 01/05/1999 |
| 5846289 | Agglomerated anti-friction granules for plasma deposition A collection of agglomerated anti-friction grains for plasma deposition, the grains each consisting essentially of (a) H2 O atomized stainless steel particles, (b) solid lubricant particles consisting of at least one of boron nitride or a eutec... | 12/08/1998 |
| 5749937 | Fast quench reactor and method A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a restrictive convergent-divergent nozzle at its outlet end. Reactants are injected into the reactor chamber. The resulting h... | 05/12/1998 |
