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| Number | Title | Issue Date |
| 7368165 | Process for the production of coated polymeric film A heat-sealable polymeric film includes a substrate layer of polymeric material having on a surface thereof a heat-sealable coating layer. The layer includes a copolyester and is less than 8 μm in thickness. The copolyester consists essentially of repeat units of o... | 05/06/2008 |
| 7279247 | Carbon nanotube pastes and methods of use Dispersable pastes comprising single-walled carbon nanotubes (SWNT) in water or in an organic solvent are prepared. The method of preparing the dispersable pastes comprises in general the following steps: a) removal of the catalyst used during the synthesis of SWNT;... | 10/09/2007 |
| 6821930 | Preparing method of oxide superconductor, raw material for oxide superconductor, and preparing method of raw material for oxide superconductor An aqueous solution of mixed metal acetate including one kind or more of element selected from lanthanide series and yttrium, barium and copper is mixed with trifluoroacetic acid to prepare a solution of mixed metal trifluoroacetate. From a solution of mixed metal t... | 11/23/2004 |
| 6572916 | Coating method for use in a process for producing high-temperature superconductive strip conductors Coatings especially for superconductive strip conductors, as well as methods of applying the coatings, are addressed. Exemplary coatings include aluminum oxide in an aqueous suspension, with aluminum oxide particles contained in the suspension having size... | 06/03/2003 |
| 6559103 | Method for producing superconducting oxide compounds A process is provided for preparing solid superconducting mixed-metal oxides whereby the superconductor can be formed into any predetermined shape by way of viscous sol precursors. The superconductors are also formed by this process into homogeneous phase... | 05/06/2003 |
| 6387852 | Method of applying high temperature compatible insulation to superconductors There is described a method of applying insulative coating on high temperature superconductors and low temperature superconductors from sol-gel solutions prepared from Zr, or Zr with one of Mg, Y, Ce, In and Sn based precursor materials. The solution is p... | 05/14/2002 |
| 5981445 | Process of making fine ceramic powders from aqueous suspensions The new preparation process for making fine high specific surface ceramic powders suitable as catalysts or precursors for ceramics uses lanthanum (or other rare earth lanthanide) oxide as one of the precursors. The oxide is mixed with water to form a liqu... | 11/09/1999 |
| 5942376 | Shelf-stable liquid metal arylketone alcoholate solutions and use thereof in photoinitiated patterning of thin films Solution films of a photosensitive metal arylketone alcoholate are micro-patterned by exposure to ultraviolet radiation under a mask. The resultant patterns are developed in an apolar solvent and annealed to provide thin film metal oxides for use in integ... | 08/24/1999 |
| 5703021 | Process for making high temperature Bi-Sr-Ca-Cu oxide superconductor A description is given of superconducting substances having a content of Bi, Sr, Ca and Cu, and of processes for their preparation from the metal oxides within a range which is specified by the overall composition Bia (Sr,Ca)b -Cu | 12/30/1997 |
| 5656574 | Fabrication of superconducting wires and rods The fabrication of superconducting wires and rods having desired and consistent electrical and mechanical properties, in particular those based on Yttrium Barium Copper Oxide (YBCO) and Bismuth Strontium Calcium Copper Oxide (BSCCO), is disclosed. The fir... | 08/12/1997 |
| 5620945 | Process for forming a superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 04/15/1997 |
| 5589441 | Superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 12/31/1996 |
| 5563117 | Copper oxide superconductor, a process for its production, and a copper used therein In the production of a 124-type or 123-type superconductor by a sol-gel method using alkoxides of respective metals, the use of a compound wherein a secbutoxy group and a hydroxy group are coordinated with a copper atom gives a superconductor composed of ... | 10/08/1996 |
| 5552370 | Silver additives for ceramic superconductors A method for making metal/ceramic superconductor thick film structures including the steps of preparing a silver/superconductor ink, applying the ink to a substrate, evaporating the ink's binder, decomposing a silver compound in the residue to coat the su... | 09/03/1996 |
| 5523284 | Process for preparing a bulk textured superconductive material In accordance this invention, there is provided a process for making a bulk superconductive material. In the first step of this process, a diffusion couple is formed from superconductor oxide and impurity oxide. Thereafter, the diffusion couple is heated ... | 06/04/1996 |
| 5482918 | Method for producing microcomposite powders using a soap solution A method for producing microcomposite powders for use in superconducting and non-superconducting applications. A particular method to produce microcomposite powders for use in superconducting applications includes the steps of: (a) preparing a solution in... | 01/09/1996 |
| 5480862 | Method for the preparation of precursors for superconductors and compounds thus obtained Method for the preparation of a precursor for a superconductor, comprising the addition of a condensation product to an aqueous solution of metal salts, the total or partial removal of water from the mixture thus obtained, the subsequent processing of the... | 01/02/1996 |
| 5376594 | Low temperature synthesis of YBA2CU308-X and other crystalline oxides Process for preparing a high temperature superconductor such as yttrium bum copper oxides, by dissolving suitable proportions of hydrolyzable salts, oxides, or organometallic compounds of yttrium, barium and copper in an acid pH-controlled water-containi... | 12/27/1994 |
| 5304533 | Process for producing an oxide superconductor from alkoxides A process for producing a superconductor of an oxide system, which comprises uniformly mixing metal elements for constituting the oxide system at least partly in the form of alkoxides having CN--, X-- wherein A is a halogen atom and... | 04/19/1994 |
| 5294599 | Processes for preparing oxide powders and superconducting oxides Fine and homogeneous oxide particles for superconductors which can be sintered at a low temperature are prepared in a liquid phase by the sol-gel method using alkoxides as starting materials. By forming a buffer layer between a substrate and a superconduc... | 03/15/1994 |
| 5236890 | Method of producing superconductor of metal oxides A method of producing a superconductor of metal oxides which includes subjecting an organic solvent solution containing (a) an alkoxide of a rare earth element, (b) an alkoxide of an alkaline earth metal and (c) copper alkoxide or cupric nitrate to hydrol... | 08/17/1993 |
| 5232909 | Method for manufacturing superconducting ceramics elongated body A superconducting ceramics elongated body comprising a flexible ceramics elongated substrate and an oxide ceramics superconducting layer formed at least on a part of the surface of the ceramics elongated substrate to longitudinally extend along the cerami... | 08/03/1993 |
| 5221661 | Method of depositing a superconducting Bi2 Sr2 CaCu2 O8 A method is provided for depositing a dense, high quality, superconducting coating on a substrate of large size and complex shape. The superconducting coating is deposited from a precursor melt that generally comprises the same constituents as the superco... | 06/22/1993 |
| 5210069 | Preparation method of high purity 115 K Tl-based superconductor A preparation method for high-purity Tl-based superconductor phase of 115 K, and the precursor thereof. The process comprises a specific composition of precursors, represented by the formula: (Tla Pbb Bic)Sr2-x Ca | 05/11/1993 |
| 5202306 | Fracture toughness for copper oxide superconductors An oxide-based strengthening and toughening agent, such as tetragonal Zro2 particles, has been added to copper oxide superconductors, such as superconducting YBa2 Cu3 Ox (123) to improve its fracture toughness (... | 04/13/1993 |
| 5188776 | Ceramic microtubular materials and method of making same Novel ceramic filamentary micro-tubular materials are described. An entirely fluid-phase method has been devised for producing such interwoven ceramic filamentary tubular materials. The process depends for its success the ability to generate a three-dimen... | 02/23/1993 |
| 5135907 | Manufacture of high purity superconducting ceramic A method for the manufacture of superconducting polycrystalline ceramic materials by the decomposition of a mixture of isopropoxides.... | 08/04/1992 |
| 5106828 | Method for fabricating superconductors by sol-gel process Superconducting oxides in the A, B, Cu oxide ternary system, where A is yttrium or a rare earth and B is an alkaline earth, are formed as thin films on a substrate by a sol-gel technique.... | 04/21/1992 |
| 5098178 | Superconducting matrix A superconductor has been disclosed which is formed of high temperature superconducting ceramic oxide particles distributed in a metal superconductor. In another embodiment, the superconducting particles are distributed in a dielectric matrix.... | 03/24/1992 |
| 5071827 | Production of superconductor materials Finely divided, homogeneous and easily sintered superconducting powders of at least one rare earth element, e.g., yttrium and/or lanthanum, at least one alkaline earth metal, e.g., barium, calcium and/or strontium, and at least one transition metal, e.g.,... | 12/10/1991 |
| 5071829 | Gel method for preparing high purity Bi-based 110K superconductor using oxalic acid This invention describes the way to prepare high purity Bi-based superconducting powders with the zero resistance temperature at 110K. The technique employs the dissolution of corresponding metal nitrates in deionized water, plus oxalic acid to chelate th... | 12/10/1991 |
| 5066636 | Citrate/ethylenediamine gel method for forming high temperature superconductors A citrate/ethylenediamine gel method for forming oxide superconductors of the Y-Ba-Cu-O, Bi-Ca-Sr-Cu-O, Tl-Ca-Ba-Cu-O system by employing the nitrates of the individual metals and citric acid. Ethylenediamine is then added to form gels. These materials th... | 11/19/1991 |
| 5026684 | Process for preparing ceramic superconductive substances A method is disclosed for preparation of superconductive substances, and in particular, those comprising a rar earth element, barium (Ba), copper (Cu) and oxygen, having a composition represented by the general formula: LnBa2 Cu3 O | 06/25/1991 |
| 5006508 | Preparation of copper alkoxides and sol/gel precursors of superconducting ceramics The invention relates to the preparation of high purity, chloride- and alkali metal-free copper (II) alkoxides by means of the reaction of an alcoholic alkali metal alkoxide solution with copper (II) fluoride; ammoniating the resulting solution to render ... | 04/09/1991 |
| 5004720 | Process for producing a superconductor of an oxide system from acetylacetonates A process for producing a superconductor of an oxide system, which comprises uniformly mixing metal elements for constituting the oxide system at least partly in the form of acetylacetonates in a solvent with the rest, if any, being in the form of alkoxid... | 04/02/1991 |
| 4977109 | Process for the preparation of the precursor used in the fabrication of Y--B--CU--O superconductors using a solgel technique This invention provides a process for the preparation of the precursor used in the fabrication of Y--Ba--Cu--O superconductors. This process mainly uses solgel technology via the nitrate route by using a dicarboxylic acid. Among the dicarboxylic acids, ox... | 12/11/1990 |
| 4962082 | Method of making high tc oxide superconductor particles by adjusting pH value and cationic ratio of admixed solution followed by drying, heating and firming Techniques for the preparation of superconducting perovskites in the MBa2 Cu3 O7-y system wherein M represents yttrium of a rare earth element and y is an integer ranging from 0.1 to 0.8 are described. The techniques invol... | 10/09/1990 |
| 4764357 | Process for producing finely divided powdery metal oxide compositions A finely divided metal oxide powdery composition, preferably with a narrow particle size distribution, is produced from a particulate, sol-gel derived composition containing agglomerates by heating the particulate composition in the presence of an effecti... | 08/16/1988 |
