Class 75/343 - Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension)

Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process in which a free metal powder is produced or purified
No. of patents: 130
Last issue date: 02/21/2012

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Number	Title	Issue Date
8118905	Method for producing magnetic microparticles, magnetic microparticles obtained therefrom, magnetic fluid, and method for producing magnetic product It is an object to provide a method for producing magnetic microparticles, which produces monodispersed magnetic microparticles, causes no clogging with a product due to self-dischargeability, requires no great pressure, and is excellent in productivity. In the meth...	02/21/2012
7988759	Method of producing metal powder A method of producing metal powder using a nozzle including a flow path and an orifice includes: storing molten metal in a supply part; passing the molten metal through a tubular member below the supply part and injecting the molten metal from a bottom end of the tu...	08/02/2011
7967890	Producing nanoparticles using nanoscale polymer templates In various aspects provided are methods for producing a nanoparticle within a cross-linked, collapsed polymeric material. In various embodiments, the methods comprise (a) providing a shape-static polymer template with a size in the range between about 1 nm to about ...	06/28/2011
7909907	Methods for high volume production of nanostructured materials A system and method for high volume production of nanoparticles, nanotubes, and items incorporating nanoparticles and nanotubes. Microwave, radio frequency, or infrared energy vaporizes a metal catalyst which, as it condenses, is contacted by carbon or other element...	03/22/2011
7828872	Copper microparticle and process for producing the same There is provided a process comprising mixing a divalent copper oxide with a reducing agent in the presence of a complexing agent and a protective colloid in a liquid medium to thereby produce copper microparticles without formation of a univalent copper oxide from ...	11/09/2010
7799112	Production method of pure metal/alloy super-micro powder It is to propose a method of producing super-micro powders of pure metal-alloy in which cheap materials can be used and the production is efficient. In the production method of pure metal super-micro powder by heating a starting material containing a metal chloride ...	09/21/2010
7776129	Apparatus and process for making high purity nickel An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the respective metals, the improvement wherein the atmosphere further comprises water vapour at a con...	08/17/2010
7648554	Metal nanoparticles and method for manufacturing same The main object of the present invention is to manufacture, on an industrial scale, metal nanoparticles with excellent dispersion stability, and therefore provides metal nanoparticles containing a metal component, further containing at least one of phosphorus, nitro...	01/19/2010
7645318	Producing nanoparticles using nanoscale polymer templates In various aspects provided are methods for producing a nanoparticle within a cross-linked, collapsed polymeric material. In various embodiments, the methods comprise (a) providing a shape-static polymer template with a size in the range between about 1 nm to about ...	01/12/2010
7588624	Method of producing gold nanoprisms The present invention relates to a method of producing gold nanoprisms. In particular, gold nanoprisms having uniform shapes and edge lengths and thickness are produced utilizing a three step growth process. ...	09/15/2009
7544229	Method for the production of highly pure metallic nano-powders The present invention discloses a novel method for the production of metallic nano-powder. This cost-effective, simple process is customized for a full-scale production of metallic nano-powders containing a first metal, and comprising the following of forming an all...	06/09/2009
7413607	Templated semiconductor particles and methods of making Composite particles of a semiconductor particle such as a metal chalcogenide within a crosslinked, cored dendrimer are described. Additionally, methods of making the composite particles and compositions that contain the composite particles are described. ...	08/19/2008
7381232	Process for producing CeOfine particles and polishing slurry containing such fine particles To provide a process for producing CeO2 fine particles having high crystallinity, being excellent in uniformity of composition and particle size and having a small particle size, and a polishing slurry containing such fine particles. A process for ...	06/03/2008
7368078	Metal powder production apparatus A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path through which the molten metal supplied from the supply part can pass, the flow path having a g...	05/06/2008
7365265	Thermoelectric materials comprising nanoscale inclusions to enhance seebeck coefficient A thermoelectric material having enhanced Seebeck coefficient is characterized by a microstructure comprising nanoscale Pb inclusions dispersed in matrix substantially composed of PbTe. The excess Pb is obtained either by adding Pb in an amount greater than the stoi...	04/29/2008
7344583	Methods of making metal particles within cored dendrimers Composite particles of a metal particle within a crosslinked, cored dendrimer are described. Additionally, methods of making the composite particles and compositions that contain the composite particles are described. ...	03/18/2008
7329301	Silver nanoparticles made in solvent This invention relates to a composition of matter comprising associated predominantly silver nanoparticles, and a method of making the nanoparticles. It further relates to articles comprising the nanoparticles. ...	02/12/2008
7315068	Interface layer for the fabrication of electronic devices The present invention is directed to methods for making electronic devices with a thin anisotropic conducting layer interface layer formed between a substrate and an active device layer that is preferably patterned conductive layer. The interface layer preferably pr...	01/01/2008
7309830	Nanostructured bulk thermoelectric material A thermoelectric material comprises two or more components, at least one of which is a thermoelectric material. The first component is nanostructured, for example as an electrically conducting nanostructured network, and can include nanowires, nanoparticles, or othe...	12/18/2007
7288468	Luminescent efficiency of semiconductor nanocrystals by surface treatment A method for improving the luminescent efficiency of semiconductor nanocrystals by surface treatment with a reducing agent to produce an improvement in luminescent efficiency and quantum efficiency without creating changes in the luminescent characteristics of the n...	10/30/2007
7288325	Hydrogen storage material based on platelets and/or a multilayered core/shell structure A hydrogen storage material includes a nano size material that can be formed in a multi-layered core/shell structure and/or in a nanotabular (or platelet) form. ...	10/30/2007
7270694	Stabilized silver nanoparticles and their use A process comprising: reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an optional solve...	09/18/2007
7261761	Metallic nickel powder and process for production thereof A metallic nickel powder exhibits superior oxidation behavior and sintering behavior in a process for production of a multilayer ceramic capacitor, and as a result, can prevent delamination, a process for production of the metallic powder is provided. The metallic n...	08/28/2007
7259100	Nanoparticles and method for making the same A method for making nanoparticles, nanoparticle inks and device layers therefrom is disclosed. In accordance with the present invention, nanoparticles are isolated from a composite material that is formed by treating a metal oxide precursor to form the metal nanopar...	08/21/2007
7258721	Carbon-containing nickel-particle powder and method for manufacturing the same Carbon-containing nickel-particle powder is provided. The carbon-containing nickel-particle powder has improved shrinkage property when fired due to the presence of carbon. Also, the carbon-containing nickel-particle powder has a very restricted degree of forming ag...	08/21/2007
7259101	Nanoparticles and method for making the same A method for making nanoparticles, nanoparticle inks and device layers therefrom is disclosed. In accordance with the present invention, nanoparticles are isolated from a composite material that is formed by treating a metal oxide precursor to form the metal nanopar...	08/21/2007
7250082	Alloy type semiconductor nanocrystals and method for preparing the same Provided is a chemical wet preparation method for Group 12-16 compound semiconductor nanocrystals. The method includes mixing one or more Group 12 metals or Group 12 precursors with a dispersing agent and a solvent followed by heating to obtain a Group 12 metal prec...	07/31/2007
7241399	Synthesis of nanoparticles Methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the invention in organic solvents allows to gain a considerably higher yield com...	07/10/2007
7238331	Process for producing nano-powders and powders of nano-particle loose aggregate The present invention discloses a process for producing nano-powders and powders of nano-particle loose aggregate, which includes: (a) providing at least two reactant solutions A and B capable of rapidly reacting to form deposits; (b) supplying the at least two reac...	07/03/2007
7220793	Curable film-forming composition exhibiting improved resistance to degradation by ultraviolet light A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functio...	05/22/2007
7217311	Method of producing metal nanocomposite powder reinforced with carbon nanotubes and the power prepared thereby The present invention relates to a metal nanocomposite powder reinforced with carbon nanotubes and to a process of producing a metal nanocomposite powder homogeneously reinforced with carbon nanotubes in a metal matrix powder. ...	05/15/2007
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
7189279	Cross-linked polymeric nanoparticles and metal nanoparticles derived therefrom There are provided internally cross-linked, stable polymeric materials, in the form of substantially spherical particles, each particle consisting essentially of a single macromolecule. They have the unusual property of being soluble or dispersible in a liquid mediu...	03/13/2007
7190506	Electrochromic device with nanoparticles and UV-absorbers in the protective coating An electrochromic device which carries a coating comprising at least one UV absorber and nanoparticles is effectively protected against destruction by UV light. ...	03/13/2007
7182977	Composite substance containing metal particles, conductive paste and manufacturing method thereof A composite substance for forming a conductive paste, comprises a solvent and metal or metal compound particles. The solvent is compatible with an organic component included in the conductive paste, and the metal or metal compound particles are dried metal or metal ...	02/27/2007
7157066	Combustion process for synthesis of carbon nanomaterials from liquid hydrocarbon The present invention provides a combustion apparatus for the production of carbon nanomaterials including fullerenes and fullerenic soot. Most generally the combustion apparatus comprises one or more inlets for introducing an oxygen-containing gas and a hydrocarbon...	01/02/2007
7147687	Non-alloying core shell nanoparticles The present invention relates composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to met...	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
7135055	Non-alloying core shell nanoparticles The present invention relates to composite core/shell nanoparticles and a two-step method for their preparation. The present invention further relates to biomolecule-core/shell nanoparticle conjugates and methods for their preparation. The invention also relates to ...	11/14/2006

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Class 75/343 - Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension)