Patents for C01G 35 - Compounds of tantalum (1,004) |
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10/02/1996 | EP0734354A1 Recovery of spent catalyst |
10/01/1996 | US5560761 Tantalum powder and electrolytic capacitor using same |
09/25/1996 | CN1131803A Tantalum powder and electrolytic capacitor using same |
09/04/1996 | CN1130155A Metal niobates and/or tanlatates, their preparation and perovskites formed from them |
08/14/1996 | CN1128733A Production of hydrated tantalum and/or niobium oxide and resultant tantalates and niobates |
06/18/1996 | US5527567 Reacting alkyls, alkoxides, beta-diketonates or metallocenes of each individual element to be deposited and oxygen |
06/05/1996 | EP0714850A2 Method for producing double metal oxide powder |
05/23/1996 | WO1996015068A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
05/23/1996 | CA2204910A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
05/08/1996 | CN1121944A Coloured pigments based on oxide-nitrides, the preparation and use thereof |
05/07/1996 | US5514822 Precursors and processes for making metal oxides |
04/18/1996 | DE4436392A1 Metal-niobate and/or tantalate used as materials for electro:ceramics, piezoceramics, etc. |
04/04/1996 | DE19536014A1 Tantalum@ powder used as anode material for electrolytic capacitors |
04/03/1996 | EP0649388A4 Metal oxide-polymer composites. |
04/02/1996 | US5503769 Method of making an unactivated yttrium tantalate x-ray phosphor |
02/22/1996 | WO1996005334A1 Metal polyoxyalkylated precursor solutions in an octane solvent and method of making the same |
02/22/1996 | CA2197775A1 Metal polyoxyalkylated precursor solutions in an octane solvent and method of making the same |
02/21/1996 | EP0697373A1 Oxynitride-based coloured pigments and process for their preparation |
02/14/1996 | EP0587672B1 Method of producing nanometer-sized oxide particles |
01/03/1996 | CN1114503A Metal oxide powder and process for producing the same |
08/30/1995 | EP0341266B1 Superconductivity in square-planar compound systems |
08/15/1995 | US5441670 Process for producing an electrically conductive mixed oxide of titanium and tantalum or niobium |
08/09/1995 | EP0666238A1 Metal oxide powder and process for producing the same |
08/09/1995 | EP0665814A1 Precursors and processes for making metal oxides. |
08/01/1995 | US5437848 Recovery of metal values from process residues |
06/22/1995 | WO1995016636A1 Recovery of spent catalyst |
06/22/1995 | WO1995016635A1 Recovery of spent catalyst |
06/13/1995 | US5423285 Applying metal carboxylate precursor in solvent of xylenes, methoxyethanol or butyl acetate to integrated circuit wafer, heating to form layer of metal compound |
05/18/1995 | DE4404374C1 Recovery and sepn of tantalum and niobium from materials contg. both |
04/26/1995 | EP0649388A1 Metal oxide-polymer composites |
04/19/1995 | CN1101634A Process for the synthesis of crystalline ceramic powders of perovskite compounds |
04/12/1995 | EP0591459A4 Process of making niobium oxide. |
03/08/1995 | EP0641740A1 Process for the synthesis of crystalline ceramic powders of perovskite compounds |
02/22/1995 | CN1027689C Sintered zirconium oxide powder and the preparation thereof |
02/16/1995 | WO1995004700A1 Metal oxide powder and process for producing the same |
02/16/1995 | CA2146539A1 Metal oxide powder and method for the production of the same |
01/03/1995 | US5378400 Preparation of metal oxide sols by electrolysis |
12/13/1994 | US5372796 Reacting a metal alkoxide with a substoichiometric amount of an acid in the presence of an oxide particle growth terminator and solubilizer |
10/27/1994 | WO1994024052A1 Metal oxide-polymer composites |
10/27/1994 | CA2135935A1 Metal oxide-polymer composites |
10/18/1994 | US5356120 Device for producing finely-divided metal and ceramic powder |
09/28/1994 | EP0616723A1 Process for fabricating layered superlattice materials |
05/17/1994 | CA1329486C Process for recovery of rare metals |
05/11/1994 | WO1994010084A1 Precursors and processes for making metal oxides |
05/11/1994 | CA2145878A1 Precursors and processes for making metal oxides |
04/13/1994 | EP0591459A1 Process of making metal oxides |
03/23/1994 | EP0587672A1 Method of producing nanometer-sized oxide particles. |
02/22/1994 | US5288474 Process for the production of lead metal niobates |
02/02/1994 | EP0580974A1 Metal niobates and/or tantalates, process for their preparation and their use |
01/20/1994 | WO1994001190A1 Recovery of metal values from process residues |
01/20/1994 | CA2139642A1 Recovery of metal values from process residues |
01/19/1994 | EP0330698B1 PROCESS FOR PURIFYING (Nb1-xTax)2O5 AND THE PREPARATION OF KNb1-xTaxO3-CRYSTALS THEREFROM |
12/29/1993 | EP0575745A1 Process for the preparation of lead-metal-niobates |
12/15/1993 | EP0573818A1 Process for the production of lead perovskites |
11/18/1993 | EP0569765A1 Apparatus for manufacturing fine metal and ceramic powder |
09/16/1993 | WO1993017959A1 Production of transparent cationically homogeneous refractory oxides of nanometer-scale particle size diameters at reduced temperatures |
08/17/1993 | US5236691 Hydrodesulfurization catalyst, intercalation |
07/06/1993 | US5225286 Tantalum oxide with yttrium oxide, tungsten oxide and niobium oxide |
06/24/1993 | WO1993012538A1 Process for fabricating layered superlattice materials |
06/24/1993 | DE4242555A1 Compsn. for preparing film |
06/16/1993 | EP0546871A1 Process for the preparation of fergusonites and the obtained products |
06/09/1993 | EP0545775A1 Perovskites on the basis of tantalum or niobium and process for its preparation |
06/09/1993 | EP0545135A1 Production of sols of metal oxides by electrolysis |
06/07/1993 | CA2084628A1 Tentalum- or niobium-based perovskites and process for their preparation |
06/02/1993 | EP0543909A1 Preparation of anhydrous niobium and tantalum pentafluorides. |
06/02/1993 | CN1072740A Preparation of metal oxide sols by electrolysis |
05/31/1993 | CA2084024A1 Preparation of metal oxide sols by electrolysis |
05/18/1993 | US5211921 From alloy |
05/11/1993 | US5209910 Digestion with hydrofluoric acid, solvent extraction with methyl isobutyl ketone |
04/28/1993 | EP0386205B1 Improved process for obtaining impurity-free compounds of ta and/or nb from materials containing these metals |
03/30/1993 | US5198269 Process for making sol-gel deposited ferroelectric thin films insensitive to their substrates |
03/30/1993 | US5198158 Forming a layer on magnesium oxide supported on saphire or gadolinium gallium garnet and etching the magnesium oxide with acid |
03/17/1993 | EP0365645B1 A method of manufacturing perovskite lead scandium tantalate |
03/16/1993 | US5194232 Washing hydroxide precipitates with dilute ammonia and water in two stages |
02/23/1993 | US5188810 Hydriding iron or nickel alloy, comminuting, carbiding, leaching with acid, oxidizing |
01/07/1993 | WO1993000296A1 Process for making niobium oxide |
01/07/1993 | WO1993000292A1 Process of making niobium oxide |
12/10/1992 | DE4118185A1 Verfahren zur herstellung nanoskaliger oxidteilchen Process for the preparation of nanoscale oxide particles |
11/24/1992 | CA2069266A1 Layer-type transition metal dichalcogenide with house-of-cards structure |
10/12/1992 | WO1992021611A1 Method of producing nanometer-sized oxide particles |
09/08/1992 | US5145743 Coating of phosphor crystals with light scattering particles adhered; medicine |
08/25/1992 | US5141673 Process of preparing tantalate x-ray intensifying phosphors with improved x-ray to light conversion efficiency |
06/24/1992 | EP0491309A1 Process of preparing tantalate X-ray intensifying phosphors with improved X-ray to light conversion efficiency |
06/03/1992 | EP0488521A1 A ceramic material |
06/02/1992 | CA1302383C Transition metal dichalcogenide catalysts |
05/27/1992 | EP0487213A1 A method of manufacturing free standing perovskite lead scandium tantalate film |
05/06/1992 | EP0484255A2 Ordered corundum magnesium tantalum niobium oxide x-ray intensifying screens |
05/02/1992 | CA2052943A1 Ordered corundum magnesium tantalum niobium oxide x-ray intensifying screens |
04/29/1992 | EP0482603A2 X-ray intensifying screens with improved sharpness |
04/26/1992 | CA2053700A1 X-ray intensifying screens with improved sharpness |
04/22/1992 | EP0481044A1 NEW COMPOUND OF THE K-Nb-Si-O SYSTEM AND ITS DERIVATIVES, PROCESS FOR SYNTHESISING THEM AND THEIR APPLICATIONS, IN PARTICULAR IN OPTICS |
04/14/1992 | US5105053 Catalytic oxidative dehydrogenation of light hydrocarbons to form heavier hydrocarbons |
04/14/1992 | US5104832 Sinterable zirconium oxide powder and process for its production |
04/08/1992 | EP0479162A1 Low temperature synthesis of alkali metal niobates and tantalates |
04/02/1992 | CA2051519A1 Low temperature synthesis of alkali metal niobates and tantalates |
03/17/1992 | US5096642 Process for producing a high density ceramic of perovskite |
03/11/1992 | CN1059320A Preparation of anhydrous niobium and tantalum pentafluorides |
03/05/1992 | WO1992003382A1 Preparation of anhydrous niobium and tantalum pentafluorides |
02/25/1992 | US5091168 Preparation of anhydrous niobium and tantalum pentafluorides |
01/14/1992 | US5080880 Niobium Pentachloride, Niobium Pentoxide, Hydrochloric Acid |