| Patents for C01G 35 - Compounds of tantalum (1,004) |
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| 10/24/2000 | US6136062 Niobium powder and a process for the production of niobium and/or tantalum powders |
| 10/03/2000 | US6126998 Process for producing a ceramic layer containing Bi |
| 09/27/2000 | EP1037940A1 Block polymer processing for mesostructured inorganic oxide materials |
| 09/19/2000 | US6120912 Thin film made by annealing an applied coating solution of metal alkoxides of bismuth, a specified metallic elements a and b respectively, which contains composite metal alkoxides formed by any two or more metal alkoxides |
| 08/30/2000 | EP1031536A1 Tantalum(V) nitride pigment, process for its preparation and its application |
| 08/30/2000 | EP1031535A1 Process for the preparation of nitride/oxynitride-based yellow to red pigments |
| 08/24/2000 | DE19907618A1 Verfahren zur Herstellung von gelben bis roten Pigmenten auf der Basis von Nitriden und Oxidnitriden Process for the preparation of yellow to red pigments based on nitrides and oxynitrides |
| 08/24/2000 | DE19907616A1 Tantal(V)-nitrid-Pigmente, Verfahren zu deren Herstellung und deren Verwendung Tantalum (V) nitride pigments, processes for their preparation and their use |
| 08/23/2000 | CA2299181A1 Tantalum(v) nitride pigments |
| 08/23/2000 | CA2299180A1 Process for the production of yellow to red pigments based on nitrides and oxidenitrides |
| 08/17/2000 | WO2000015556A9 Methods to partially reduce certain metal oxides and oxygen reduced metal oxides |
| 08/09/2000 | EP1026125A1 Process for producing fine metal oxide particles |
| 06/22/2000 | WO2000036051A1 Ternary oxide particles |
| 06/08/2000 | WO2000032516A1 Method of producing inorganic compound solid substance and method of manufacturing semiconductor device |
| 06/08/2000 | CA2351607A1 Method of forming inorganic compound solid and method of manufacturing semiconductor device employing the same |
| 05/03/2000 | EP0997542A1 Niobium powder and method for its production |
| 04/26/2000 | CN1251325A Niobium powder and method for producing niobium and/or tantalum powder |
| 04/20/2000 | DE19847012A1 Niobpulver und Verfahren zu dessen Herstellung Niobium powder and process for its preparation |
| 04/05/2000 | EP0990059A1 Low temperature chemical vapor deposition process for forming bismuth-containing ceramic thin films useful in ferroelectric memory devices |
| 04/05/2000 | CN1249849A Strontium bismuth niobate tantalate ferroelectric thin film |
| 03/23/2000 | WO2000015556A1 Methods to partially reduce certain metal oxides and oxygen reduced metal oxides |
| 03/23/2000 | WO2000015555A1 Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides |
| 03/22/2000 | CN1248229A Inorganic polymeric material with tantalic acid anhydride base, in particular with high refractive index, mechanically abrasionproof, method of manufacture, optical materials comprising such material |
| 03/02/2000 | WO1999037705A9 Block polymer processing for mesostructured inorganic oxide materials |
| 01/19/2000 | CN1048473C Process for the synthesis of crystalline ceramic powders of perovskite compounds |
| 01/12/2000 | EP0970516A1 Strontium bismuth niobate tantalate ferroelectric thin film |
| 01/04/2000 | US6010676 Method for making a highly pure tantalum compound |
| 12/28/1999 | US6007870 Dissolving crystalline ceramic powder in water so as to leave core portion of ceramic powder while heating; depositing coating of ceramic powder dissolved in the water on and around surfaces of core; firing to form shell around core cooling |
| 12/08/1999 | EP0961756A1 Inorganic polymeric material with tantalic acid anhydride base, in particular with high refractive index, mechanically abrasionproof, method of manufacture, optical materials comprising such material |
| 12/02/1999 | WO1999061670A1 Tantalum sputtering target and method of manufacture |
| 11/02/1999 | US5976624 Process for producing bismuth compounds, and bismuth compounds |
| 10/26/1999 | US5972096 Coating solutions for use in forming bismuth-based ferroelectric thin films |
| 09/29/1999 | CN1045346C Tantalum powder and electrolytic capacitor using same |
| 09/28/1999 | US5958363 Method for making monolithic metal oxide aerogels |
| 08/10/1999 | US5935549 Oxidizing a shaped pellet comprising bismuth oxide, tantalum oxide, strontium hydroxide or strontium nitrate to form a single phase inorganic oxide |
| 07/29/1999 | WO1999037705A1 Block polymer processing for mesostructured inorganic oxide materials |
| 07/20/1999 | US5925183 Method for producing layer-structured perovskite thin film of bismuth-based compounds having ferroelectric properties |
| 06/16/1999 | CN1219979A Method for solubilizing metal values from Ta-Nb-ore materials containing insoluble fluorides |
| 06/01/1999 | US5908489 Process for removing antimony from hydrofluoric acid solutions which contain Ta/Nb |
| 05/26/1999 | CN1217299A Potassium fluo-tantalite produced by tantalum tin-contained dregs after extracting tin from |
| 05/18/1999 | US5904766 Process for preparing bismuth compounds |
| 05/04/1999 | US5900223 Process for the synthesis of crystalline powders of perovskite compounds |
| 04/22/1999 | WO1999019408A1 Oxinitrided composition based on an alkaline earth and tantalum or on an alkaline earth and niobium, preparation methods and use as dyeing pigment |
| 04/22/1999 | WO1999000530A9 Low temperature chemical vapor deposition process for forming bismuth-containing ceramic thin films useful in ferroelectric memory devices |
| 04/13/1999 | US5894016 Reacting the mixture of tin, a second metal or metal sulfide with a superstoichiometric quantity of solid phase sulfur with ammonium or tin chloride as an exothermic reaction to form mixed sulfide or tin sulfide in pressureless condition |
| 03/31/1999 | EP0905277A1 Process for making a Bi-containing ceramic layer like strontium-bismuth-tantalate |
| 03/18/1999 | DE19841774A1 Preparation of high purity tantalum oxide of optical quality |
| 03/16/1999 | US5883828 Low imprint ferroelectric material for long retention memory and method of making the same |
| 02/25/1999 | WO1999008963A1 Process for producing fine metal oxide particles |
| 02/03/1999 | EP0894779A1 Process for preparing ceramic powder |
| 02/03/1999 | EP0894155A1 Composition and process for fabricating metal oxide films |
| 01/27/1999 | EP0893515A1 Preconditioned crystals of lithium niobate and lithium tantalate and methods of preparing the same |
| 01/14/1999 | DE19727437A1 Verbesserung der Strukturbestimmung von biologischen Aggregaten in der Röntgenkristallographie Improvement in the structure determination of biological aggregates in the X-ray crystallography |
| 01/13/1999 | EP0666238B1 Metal oxide powder and process for producing the same |
| 01/07/1999 | WO1999000530A1 Low temperature chemical vapor deposition process for forming bismuth-containing ceramic thin films useful in ferroelectric memory devices |
| 01/07/1999 | WO1999000328A1 Improved structural determination of biological aggregates in x-ray crystallography |
| 12/30/1998 | CN1203567A Niobium and tantalum pentoxide compounds |
| 12/08/1998 | US5846505 Method for producing double metal oxide powder |
| 12/02/1998 | EP0777762B1 Metal polyoxyalkylated precursor solutions in an octane solvent and method of making the same |
| 10/21/1998 | CN1040314C Metal oxide powder and process for producing same |
| 09/22/1998 | US5811153 Solutions containing reaction product of metal alkoxides, acetates or beta-diketone complexes with alcohols, carboxylic anhydrides, glycols, beta-diketones or dicarboxylic acid monoesters |
| 09/11/1998 | WO1998039800A1 Strontium bismuth niobate tantalate ferroelectric thin film |
| 09/11/1998 | CA2281763A1 Strontium bismuth niobate tantalate ferroelectric thin film |
| 08/13/1998 | WO1998034876A1 Inorganic polymeric material with tantalic acid anhydride base, in particular with high refractive index, mechanically abrasionproof, method of manufacture, optical materials comprising such material |
| 08/04/1998 | US5788757 Solution of metal carboxylate in ester solvent, formation of strontium barium titantes, strontium bismuth tantalates and/or niobates, annealing |
| 07/29/1998 | EP0854841A1 Niobium and tantalum pentoxide compounds |
| 07/28/1998 | US5785898 Potassium lithium tantalate niobate photorefractive crystals |
| 07/22/1998 | EP0854504A1 Coating solutions for use in forming bismuth-based ferro-electric thin films, and ferro-electric thin films, ferro-electric capacitors and ferro-electric memories formed with said coating solutions, as well as processes for production thereof |
| 07/22/1998 | EP0854503A1 Coating solutions for use in forming bismuth-based ferro-electric thin films, and ferro-electric thin films, ferro-electric capacitors and ferro-electric memories formed with said coating solutions, as well as processes for production thereof |
| 07/21/1998 | US5784310 Low imprint ferroelectric material for long retention memory and method of making the same |
| 07/02/1998 | WO1998028466A1 Composition and process for fabricating metal oxide films |
| 06/30/1998 | US5772924 Calcined mixture |
| 06/16/1998 | US5766336 Colored pigments based on oxide-nitrides, the preparation and use thereof |
| 03/17/1998 | US5728639 Recovery of spent catalyst |
| 03/04/1998 | EP0734355B1 Recovery of spent catalyst |
| 02/24/1998 | US5721182 Metal niobates and/or tantalates, their preparation and perovskites formed from them |
| 01/13/1998 | US5707599 Process for purifying tantalum oxide and other metal oxides |
| 11/20/1997 | DE19619228A1 Removing antimony from hydrofluoric acid solutions |
| 11/19/1997 | CN1165380A Ferroelectric element and method of producing the same |
| 11/12/1997 | EP0806396A1 Process for the preparation of metal disulfides and further processing thereof to dimetal trisulfides |
| 10/22/1997 | CN1162949A Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 10/02/1997 | WO1997036014A1 METHOD FOR SOLUBILIZING METAL VALUES FROM Ta-Nb-ORE MATERIALS CONTAINING INSOLUBLE FLUORIDES |
| 09/23/1997 | US5670583 Ceramers from metal oxide cluster gel reacted with polymer |
| 09/17/1997 | EP0795898A2 Ferroelectric element and method of producing the same |
| 09/17/1997 | CN1159424A Method for dissolution and purification of tantalum pentoxide |
| 08/27/1997 | EP0790959A1 Vanadium dioxide microparticles, method for preparing same, and use thereof, in particular for surface coating |
| 08/05/1997 | US5654456 Precursors and processes for making metal oxides |
| 06/11/1997 | EP0777762A1 Metal polyoxyalkylated precursor solutions in an octane solvent and method of making the same |
| 06/03/1997 | US5635146 Method for the dissolution and purification of tantalum pentoxide |
| 04/17/1997 | WO1997013724A1 Niobium and tantalum pentoxide compounds |
| 04/17/1997 | CA2234672A1 Niobium and tantalum pentoxide compounds |
| 04/15/1997 | US5620936 Tantalum and niobium salts |
| 03/25/1997 | US5614129 Potassium lithium tantalate niobate photorefractive crystals |
| 03/05/1997 | EP0760400A2 Process for producing bismuth compounds, and bismuth compounds |
| 02/05/1997 | CN1033990C Metal-oxide super-conductive composition and mfg. method and usage thereof |
| 01/15/1997 | EP0665814B1 Precursors and processes for making metal oxides |
| 01/02/1997 | EP0751566A2 A thin film metal barrier for electrical interconnections |
| 12/05/1996 | DE19519719A1 Continuous prodn. sparingly soluble hydrated oxide(s) of niobium, tantalum and titanium |
| 10/23/1996 | EP0543909B1 Preparation of anhydrous niobium and tantalum pentafluorides |
| 10/02/1996 | EP0734355A1 Recovery of spent catalyst |