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| Number | Title | Issue Date |
| 7867466 | Thermally conductive, electrically insulating material and production method thereof Means for a thermally conductive and electrically insulating material 1 containing an AlN crystal 150 mainly comprising AlN, and a production method thereof. In production, a molten aluminum layer is formed on an AlN substrate 11 with at least i... | 01/11/2011 |
| 7763226 | Method of manufacturing an aluminum nitride powder An aluminum nitride-based ceramic sintered body is provided, which is manufactured by sintering an aluminum nitride powder comprising aluminum nitride as a main component, carbon in an amount of 0.1 wt % or more to 1.0 wt % or less, and containing oxygen in an amoun... | 07/27/2010 |
| 7553469 | Aluminum nitride powder and aluminum nitride sintered compact To provide an aluminum nitride powder and an aluminum nitride sintered body which satisfy both high thermal conductivity of an aluminum nitride sintered body and reduction in the shrinkage factor at the time of sintering. An aluminum nitride powder characteri... | 06/30/2009 |
| 7381391 | Method of making Group III nitrides The present invention provides compositions and a novel high-yielding process for preparing high purity Group III nitrides. The process involves heating a Group III metal and a catalytic amount of a metal wetting agent in the presence of a nitrogen source. Group III... | 06/03/2008 |
| 7338555 | Highly crystalline aluminum nitride multi-layered substrate and production process thereof A highly crystalline aluminum nitride multi-layered substrate comprising a single-crystal α-alumina substrate, an aluminum oxynitride layer and a highly crystalline aluminum nitride film as the outermost layer which are formed in the mentioned order, wherein the al... | 03/04/2008 |
| 7309475 | Whisker-reinforced ceramic containing aluminum oxynitride and method of making the same A process of making aluminum oxynitride powder including the steps of: forming a powder mixture by mixing alumina powder and aluminum nitride powder according to the following formula: ((4−x)/3) alumina and x aluminum nitride wherein x is in mole percent and range... | 12/18/2007 |
| 7267808 | Aluminum nitride powder, method for producing the same and use thereof The present invention is to produce an aluminum nitride powder which is turned into a sintered body at a temperature of not more than 1600° C., thereby obtaining a sintered aluminum nitride in which the density and thermal conductivity are high and which can be pro... | 09/11/2007 |
| 7247188 | Particle producing method and particle producing apparatus A particle producing apparatus includes a reaction container, an introduction portion for introducing a source gas and a reaction inhibitor generating gas into the reaction container, an inert gas introduction portion for introducing a carrier gas into the reaction ... | 07/24/2007 |
| 7247289 | Porous aluminum fluoride A porous aluminum fluoride on which SbClxF5-x (wherein x represents a numeral of 0 to 5) is supported, SbClxF5-x being obtainable by supporting SbCl5, or the like on a porous aluminum fluoride and treating it wi... | 07/24/2007 |
| 7220314 | Single crystalline aluminum nitride film, method of forming the same, base substrate for group III element nitride film, light emitting device and surface acoustic wave device A single crystalline aluminum nitride laminated substrate comprising a single crystalline α-Al2O3 substrate such as a sapphire substrate, an aluminum oxynitride layer formed on the substrate and a single crystalline aluminum nitride film as th... | 05/22/2007 |
| 7217403 | Method for synthesizing aluminum nitride A method for synthesizing aluminum nitride is disclosed, wherein an ignition agent is formed by mixing an azide powder (such as sodium azide; NaN3) and aluminum powder, and is paved on an ignition portion of a reactant-containing body having a plurality o... | 05/15/2007 |
| 7163656 | Method for making dense polycrystalline aluminum oxynitride A dense polycrystalline aluminum oxynitride body is produced. According the method of production, aluminum oxide (alumina) powder and 26 to 40 mole % aluminum nitride powder is mixed to form a very fine powder mixture. The powder mixture is shaped and hot pressed at... | 01/16/2007 |
| 7150862 | Method of manufacturing powder A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry containing agglomerated particles of a synthetic material which is produ... | 12/19/2006 |
| 7144545 | Process for the production of ceramic bearing components The invention relates to a process for the production of ceramic bearing components in which a mixture of a metallo-organic compound and a chemically reactive filling substance is subjected to a pyrolysis reaction and the resulting product. ... | 12/05/2006 |
| 7138098 | Preparation of nanocrystallites A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconductin... | 11/21/2006 |
| 7022301 | Process for producing aluminum nitride and aluminum nitride A process for producing aluminum nitride includes a nitrogen occluding step and a nitriding step. In the nitrogen occluding step, nitrogen is occluded in an aluminum powder having an average particle diameter of from 10 to 200 μm by holding the aluminum powder in a... | 04/04/2006 |
| 7011804 | Method and apparatus for preparing aluminum nitride A method and an apparatus for preparing aluminum nitride are disclosed. The method for preparing aluminum nitride is first to prepare a reactant-containing body filled with admixtures of aluminum powder, a diluent (aluminum nitride powder) and nitrogen-containing so... | 03/14/2006 |
| 6986875 | Process for producing aluminum nitride and aluminum nitride A process for producing aluminum nitride includes a step of holding an aluminum powder in a nitrogen atmosphere whose nitrogen gas pressure falls in a range of from 105 to 300 kPa, thereby developing a nitriding reaction at a temperature of from 500 to 1,000° C., w... | 01/17/2006 |
| 6955798 | Method for manufacturing aluminum oxynitride (AlON) powder and other nitrogen-containing powders A method of preparing substantially homogeneous aluminum oxynitride powder and other nitrogen-containing powders is provided. Particularly with respect to the AlON powder, the method comprises the steps of milling a mixture of aluminum and aluminum oxide in a nitrog... | 10/18/2005 |
| 6861038 | Ceramics and method of producing ceramics A method of continuously producing a non-oxide ceramic formed of a metal constituent and a non-metal constituent. A salt of the metal constituent and a compound of the non-metal constituent and a compound of the non-metal constituent are introduced into a liquid alk... | 03/01/2005 |
| 6482384 | Method for synthesis of aluminum nitride This invention provides a method for production of AlN powder. An Al powder was poured into a refractory container having an opening end. If the packing density of the Al powder was less than 0.8 g/cm3, the container containing the Al powder wa... | 11/19/2002 |
| 6423287 | Method for production of aluminum nitride power This invention concerns a method for production of AlN powder. The reactants discovered in the invention are aluminum powder and a compound which contains NHx (e.g. NH2, NH3, NH4, N2 H4, an... | 07/23/2002 |
| 6406677 | Methods for low and ambient temperature preparation of precursors of compounds of group III metals and group V elements Processes are provided for preparation of precursors of Group III-V compounds, i.e., nitrides, phosphides, arsenides, antimonides and bismuthides of boron, aluminum, gallium and indium. The precursors are easily converted, e.g., by thermal decomposition, ... | 06/18/2002 |
| 6379449 | Process for the production of yellow to red pigments based on nitrides and oxidenitrides Nitride or oxidenitride based red to yellow pigments, such as tantalum(V) nitride and oxidenitrides containing tantalum may be produced by passing ammonia over nitridable metal compounds, in particular oxide compounds, at 700 to 1250° C. According to the... | 04/30/2002 |
| 6296956 | Bulk single crystals of aluminum nitride Bulk, low impurity aluminum nitride (AlN) single crystals are grown by sublimation or similar deposition techniques at growth rates greater than 0.5 mm/hr.... | 10/02/2001 |
| 6294275 | Aluminum-nitride sintered body, method for fabricating the same, and semiconductor substrate comprising the same An aluminum-nitride sintered body that has both high thermal conductivity and high mechanical strength, a fabricating method for the same, and a semiconductor substrate comprising the same. A material powder is prepared by mixing an aluminum-nitride powde... | 09/25/2001 |
| 6159439 | Process for producing aluminum nitride A process for producing aluminum nitride comprises a step of nitriding directly a mixed powder comprising of, a bulky aluminum powder composed of aluminum or an aluminum alloy powder which occupies 50 to 97% by weight and whose sieve opening of JIS is not... | 12/12/2000 |
| 6120748 | Process for rapid solid-state formation of refractory nitrides A process for forming high quality crystalline refractory materials, particularly gallium (Ill) nitride (GaN), from solid precursors. By blending dry reactants in an oxygen and moisture free environment, placing the reactants in a sealed vessel, pressuriz... | 09/19/2000 |
| 5980851 | Transparent electrically conductive plate A transparent electrically conductive plate contains a transparent substrate, a transparent electrically conductive layer, an ultraviolet absorbing layer disposed between the transparent substrate and the transparent electrically conductive layer and cont... | 11/09/1999 |
| 5876682 | Nanostructured ceramic nitride powders and a method of making the same Near net-shapeable nanostructured ceramic nitride powder and a process for producing the same by nitriding molecular precursor powder in a nitrogen containing atmosphere, e.g., in ammonia, to form nanostructured ceramic nitride powder.... | 03/02/1999 |
| 5851507 | Integrated thermal process for the continuous synthesis of nanoscale powders A continuous process that produces nanoscale powders from different types of precursor material by evaporating the material and quenching the vaporized phase in a converging-diverging expansion nozzle. The precursor material suspended in a carrier gas is ... | 12/22/1998 |
| 5846508 | Method for preparing aluminum nitride powders A method for preparing aluminium nitride includes a first step in which a mixture is formed of aluminium powder and ammonium halide powder. The mixture is then molded into a tablet, which is ignited in an airtight chamber containing nitrogen gas. Aluminiu... | 12/08/1998 |
| 5837633 | Method for production of aluminum nitride sintered body and aluminum nitride powder The present invention provides a method for producing an aluminum nitride sintered body having excellent characteristics and an aluminum nitride powder conveniently and inexpensively. The present invention relates to a method for production of an aluminum... | 11/17/1998 |
| 5817274 | Method of manufacturing aluminum nitride Disclosed is a method of manufacturing aluminum nitride, which comprises the steps of preparing a mixed gas consisting essentially of an ammonia gas and at least 0.5% by volume of a hydrocarbon gas, calcining γ-Al2 O3 or a precursor... | 10/06/1998 |
| 5720933 | Process for preparing ceramic fibers A process for preparing silicon carbide fiber by the carbothermal reduction of silica fiber. In the first step of the process, a specified silica fiber is contacted with a source of elemental carbon to produce a reactant mass; the silica fiber is comprise... | 02/24/1998 |
| 5693305 | Method for synthesizing aluminum nitride whiskers A method for making aluminum nitride whiskers comprising reacting a reactant bed of aluminum, alumina, ammonium chloride, with a metal-containing carbon catalyst in the presence of a nitrogen gas flow, such that a direct nitridation reaction, a carbotherm... | 12/02/1997 |
| 5674465 | Continuous process for the preparation of aluminum nitride by the carbonitriding of alumina The invention relates to a continuous process for the preparation of aluminum nitride by the carbonitriding of alumina. According to this process, a reaction that uses alumina, carbon, and a resin that generates carbon by pyrolysis is performed in a metho... | 10/07/1997 |
| 5646078 | Aluminum nitride powder An aluminum nitride powder comprising polycrystalline particles which have clearly observed grain boundaries, an agglomerated particle size of 0.1 to 100 μm when measured by a particle size distribution analyzer, a tapped bulk density of 0.55 to 2.0 g/cm... | 07/08/1997 |
| 5626827 | Basic aluminum antiperspirant active materials having enhanced activity, antiperspirant active compositions containing such materials, and methods for preparation of such materials and compositions Disclosed are basic aluminum antiperspirant materials having univalent complex oxoanions (e.g., nitrate); methods of making such materials; antiperspirant compositions containing such basic aluminum materials, another antiperspirant active material (e.g.,... | 05/06/1997 |
| 5573742 | Method for the preparation of high purity aluminum nitride A process and apparatus for making high purity aluminum nitride from organometallic aluminum, such as an alkylaluminum compound. A gaseous alkylaluminum compound and gaseous ammonia are introduced into a heated reaction zone where the gases are mixed and ... | 11/12/1996 |
