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| Number | Title | Issue Date |
| 7449044 | Method and apparatus for producing metal powder An object of the present invention is to provide a method for production of metallic powder in which aggregation of particles and growth to secondary particle after reducing process of the metallic powder particle can be prevented, to reliably obtain metallic partic... | 11/11/2008 |
| 7416697 | Method for preparing a metallic article having an other additive constituent, without any melting A method for preparing an article of a base metal alloyed with an alloying element includes the steps of preparing a compound mixture by the steps of providing a chemically reducible nonmetallic base-metal precursor compound of a base metal, providing a chemically r... | 08/26/2008 |
| 7367999 | Ultrafine particles and method and apparatus for producing the same A method of producing ultrafine particles by vaporization comprising: vaporizing a target by sputtering; causing particles that fly from the target by vaporization to be deposited on an oil surface; and recovering the oil on which the flown particles have deposited ... | 05/06/2008 |
| 7351272 | Method and apparatus for controlling the size of powder produced by the Armstrong process A method of controlling the size and morphology of powder made by the subsurface injection of a halide vapor into a liquid metal is disclosed. A reaction zone is established and the temperature thereof or the time the powder remains therein is controlled to change p... | 04/01/2008 |
| 7344584 | Process for producing metal powders A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reactor. By employing an upward gas... | 03/18/2008 |
| 7314499 | Method and device for manufacturing advanced water containing ultra-fine gold particles Produce high-function water useful for consumption as healthy drinking water or in the production of health supplements, cosmetic products, food preservatives, freshness-keeping agents for food, insect repellents or deodorizers, wherein such water contains micro-dis... | 01/01/2008 |
| 7208028 | Method of producing nanophase W powder by low-pressure vapor phase reaction W powder is produced by: preparing a precursor containing tungsten; producing gas by vaporizing or sublimating the precursor; separating the tungsten component by placing the gas in an inert atmosphere while maintaining pressure below atmospheric pressure; and conde... | 04/24/2007 |
| 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 |
| 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 |
| 7041150 | Preparation of alloys by the Armstrong method A method and apparatus for making alloys or ceramics by the subsurface injection of an equilibrium vapor of a boiling liquid of the ceramic or alloys constituents is disclosed. Various powders and products are disclosed. ... | 05/09/2006 |
| 6955703 | Process for the production of elemental material and alloys The present invention relates to a process for the production of an elemental material, comprising the step of reacting a halide of the elemental material with a reducing agent in solid form in a fluidized bed reactor at a reaction temperature which is below the mel... | 10/18/2005 |
| 6939619 | Metal powder, method for producing the same, conductive paste using the same, and monolithic ceramic electronic component A metal powder is formed by the steps of preparing a reducing agent solution, preparing a mixed metallic salt solution by dissolving a nickel salt and a copper salt in a solvent, and mixing the reducing agent solution and the mixed metallic salt solution so that the... | 09/06/2005 |
| 6932852 | Method and apparatus for enhanced purification of high-purity metals A 99.99% pure indium feed is charged into a crucible and heated to 1250 ° C. by an upper heater in a vacuum atmosphere at 1×10−4 Torr, whereupon indium evaporates, condenses on the inner surfaces of an inner tube and drips to be recovered into a liqui... | 08/23/2005 |
| 6923842 | Method and apparatus for producing fine particles, and fine particles A method and apparatus are invented for producing fine particles, which can readily realize the formation of fine particles of sub-μm order to 100 micron order as well as fine particles of several micrometer which cannot be realized by a conventional method and app... | 08/02/2005 |
| 6919054 | Reactant nozzles within flowing reactors Improved reaction chamber designs are described that provide for improved control over the flow within the reaction chamber. The reaction chambers contain reactions for particle production from a flowing reactant stream. Improved reactant delivery nozzles are descri... | 07/19/2005 |
| 6893481 | Method for manufacturing Ni-Al alloy powders for fuel cells using aluminum chloride In a method for manufacturing Ni—Al alloy powders for electrode materials of fuel cells, in which, using aluminum chloride (AlCl3) as a catalyst, powders of Ni and Al, that have been used as electrode materials, are chemically reacted with each other to... | 05/17/2005 |
| 6884279 | Producing metallic articles by reduction of nonmetallic precursor compounds and melting A metallic article is produced by furnishing one or more nonmetallic precursor compound comprising the metallic constituent element(s), and chemically reducing the nonmetallic precursor compound(s) to produce an initial metallic particle, preferably having a size of... | 04/26/2005 |
| 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 |
| 6689190 | Process for the manufacture of reacted nanoparticles A process and apparatus prepares and collects metal nanoparticles by forming a vapor of a metal that is solid at room temperature, the vapor of the metal being provided in an inert gaseous carrying medium. At least some of the metal is solidified within t... | 02/10/2004 |
| 6682584 | Process for manufacture of reacted metal nanoparticles A process and apparatus prepares and collects metal nanoparticles by forming a vapor of aluminum or copper metal that is solid at room temperature, the vapor of the metal being provided in an inert gaseous carrying medium. At least some of the metal is so... | 01/27/2004 |
| 6676727 | Process for the manufacture of metal nanoparticle A process and apparatus prepares and collects aluminum and copper metal nanoparticles by forming a vapor of a metal that is solid at room temperature, the vapor of the metal being provided in an inert gaseous carrying medium. At least some of the metal is... | 01/13/2004 |
| 6500227 | Process for production of ultrafine nickel powder In a process for production of ultrafine nickel powder, raw material gas having a partial pressure of nickel chloride vapor within a range from 0.2 to 0.7 is fed into a reducing furnace and the nickel chloride vapor is reduced with hydrogen while flowing ... | 12/31/2002 |
| 6391084 | Metal nickel powder The present invention provide metallic nickel powder in which the occurrence of delaminatoin can be prevented by providing superior sintering propreties in production processes for multilayer ceramic capacitors and by providind superior dispersion charact... | 05/21/2002 |
| 6372015 | Method for production of metal powder A process for production of metallic powder comprising contacting a metallic chloride gas with a reductive gas in a temperature range for a reducing reaction to form a metallic powder and subsequently contacting the metallic powder with an inert gas such ... | 04/16/2002 |
| 6312496 | Nickel ultrafine powder A nickel ultrafine powder which is characterized by having an average particle diameter of 0.2 to 0.6 μm and containing coarse particles whose particle diameter is larger than 2.5 times the average particle diameter in an amount less than 0.1% in terms o... | 11/06/2001 |
| 6284013 | Method for preparing high-purity ruthenium sputtering target and high-purity ruthenium sputtering target There is provided a high-purity ruthenium sputtering target with a low impurity content, in particular producing extremely few particles, which is suitable for applications such as the formation of semiconductor thin films. The high-purity ruthenium sputt... | 09/04/2001 |
| 6231637 | Process for producing high-purity silver materials A process for producing a high-purity silver material comprising placing a silver feed in a crucible disposed in a furnace comprising an inner cylinder which encloses the crucible and an outer cylinder which encloses the inner cylinder; heating the silver... | 05/15/2001 |
| 6036741 | Process for producing high-purity ruthenium A process comprises forming ruthenium tetroxide by blowing ozone-containing gas into crude ruthenium powder while hypochlorous acid is being added to the powder, allowing a hydrochloric acid solution to absorb the ruthenium tetroxide, evaporating the solu... | 03/14/2000 |
| 5904748 | Production of elementary volatile metals by thermal reduction of their oxides with the aid of another metal Solar process for the production of volatile elemental zinc, sodium, and potassium by reacting their oxides with a reducing metallic agent selected from Fe, Sn, Ni, Co and Mn, and in a second step, reacting carbon or hydrogen with the oxide of said reduci... | 05/18/1999 |
| 5658367 | Method of manufacturing magnesium powder from magnesium crown Magnesium powder is manufactured by reacting dolomitic lime, ferrosilicon and fluorospar to create magnesium vapor. The magnesium vapor is condensed in a retort in a manner to form a primarily dendritic crown of magnesium. The dendritic magnesium crown is... | 08/19/1997 |
| 5505761 | Process for preparing metallic cadmium powder A process for preparing a metallic cadmium powder for use in a nickel-cadmium by heat melting metallic cadmium in an evaporator, introducing an inert gas into the evaporator to discharge cadmium vapor along with the inert gas into a cooler, and collecting... | 04/09/1996 |
| 5472477 | Process for the preparation of finely divided metal and ceramic powders The present invention relates to a process for the preparation of finely divided metal and/or ceramic powders by reacting appropriate metal compounds and appropriate reagents in the gas phase (CVR) chemical vapor reaction, wherein the metal compound(s) an... | 12/05/1995 |
| 5284329 | System for the production of powders from metals The invention relates to a system for the production of powders from metals. This system has a melting chamber (2) and a powder container (3) separated herefrom. In the melting chamber a metal rod (15) is melted through the high-frequency field of a coil ... | 02/08/1994 |
| 4994107 | Aerosol reactor production of uniform submicron powders A method of producing submicron nonagglomerated particles in a single stage reactor includes introducing a reactant or mixture of reactants at one end while varying the temperature along the reactor to initiate reactions at a low rate. As homogeneously sm... | 02/19/1991 |
| 4892579 | Process for preparing an amorphous alloy body from mixed crystalline elemental metal powders A process for preparing a substantially amorphous metal alloy body from substantially crystalline mixed elemental metal powders is disclosed. The process for producing the mixed elemental metal powders comprises the step of (1) entraining vapors of at lea... | 01/09/1990 |
| 4881722 | Apparatus for producing superfine particle In preparing superfine particle in a reaction chamber by evaporation-in-gas method or on such processes as PVD or CVD using arc- or high-frequency plasma wherein in the proximity of the inner surface of the said reaction chamber, a vessel provided with a ... | 11/21/1989 |
| 4758267 | Ultrafine particle and fiber production in microgravity In a system and method for producing ultrafine particles and ultrafine fibers of a given source material by evaporating and condensing the material in a gas atmosphere that includes inert gas. A smaller, more narrow size distribution is accomplished by pr... | 07/19/1988 |
| 4710346 | Method for manufacturing powder material and shaped products utilizing the conditions in outer space A method and apparatus for manufacturing powders comprising converting a solid starting material from the solid state to the gaseous or vapor phase, and forming powder particles by transferring the starting material in gaseous or vapor phase into a sealed... | 12/01/1987 |
| 4626410 | Method of making composite material of matrix metal and fine metallic particles dispersed therein A composite material having a first metallic material as the matrix material and extremely fine particles of diameters of the order of tens to hundreds of angstroms of a second metal dispersed in this metallic matrix material is obtained by rapidly adiaba... | 12/02/1986 |
| 4617055 | Metal cored ceramic surfaced fine powder material and apparatus and method for making it A ceramic surface-metallic core particle composite fine powder material is disclosed, composed of fine particles each having a metallic core and a ceramic surface layer, in which the average value of the ratio of the thickness of the surface layer of a po... | 10/14/1986 |
