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| Number | Title | Issue Date |
| 7335395 | Methods of using pre-formed nanotubes to make carbon nanotube films, layers, fabrics, ribbons, elements and articles Methods of Using Preformed Nanotubes to Make Carbon Nanotube Films, Layers, Fabrics, Ribbons, Elements and Articles are disclosed. To make various articles, certain embodiments provide a substrate. Preformed nanotubes are applied to a surface of the substrate to cre... | 02/26/2008 |
| 7307046 | Composition for thick oxide superconductor film and method of producing oxide superconductor in form of thick film tape using the same To provide a composition for a thick oxide superconducting film containing a copper salt of a branched saturated aliphatic carboxylic acid having 6 or more carbon atoms and/or a copper salt of an alicyclic carboxylic acid having 6 or more carbon atoms, which is suit... | 12/11/2007 |
| 6110529 | Method of forming metal films on a substrate by chemical vapor deposition A method of forming on a substrate a metal film, comprising depositing said metal film on said substrate via chemical vapor deposition from a metalorganic complex of the formula: MAY X wherein: M is a y-valent metal; A is a monodentate or multidenta... | 08/29/2000 |
| 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 |
| 5665682 | Method of manufacturing an oxide superconductor with high critical current density An oxide superconductor capable of realizing a high critical current density and its manufacturing method requiring only a low temperature heat treatment. An oxide superconductor has a superconductive layer with a composition of RE1 Ba2 | 09/09/1997 |
| 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 |
| 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 |
| 5451434 | MOCVD process using alkaline earth metal-heptane dionate compounds Alkaline earth metal heptane dionates which have uniform evaporation properties in a vacuum and are therefore highly suitable for use in CVD synthesis for depositing layers containing alkaline earth metal useful in fields such as the production of high te... | 09/19/1995 |
| 5447909 | Metalorganic chemical vapor deposition of superconducting oxide films A superconducting thin oxide film is formed by the steps of mixing a gas of the organometal compound of the alkali earth metal, a gas of at least one organometal compound of the element of the group IIIa and/or a halogenide thereof, and a gas of at least ... | 09/05/1995 |
| 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 |
| 5369091 | Process for the manufacture of 95% by weight single phase YCBO powder in one combustion step, comprising the use of citrate complex compounds as starting materials A process for producing YBCO powders by pyrolysis involves preparing a clear aqueous solution containing the ions yttrium, barium and copper, in the final proportions desired for the powder, in the form of complex compounds, preferably citric complex comp... | 11/29/1994 |
| 5306696 | Method of producing YBa2 Cu4 Ox -type superconducting metal oxides A method of producing a superconductor of metal oxides having the following composition: (M1-x Cax)(Ba1-y Sry)2 Cu4 O8 wherein M stands for a rare earth element, x is 0 or a positive numbe... | 04/26/1994 |
| 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 |
| 5304536 | Process for making superconductor powder An improved process for preparing a superconducting composition having the formula MW AE CuV OK wherein M is selected from the group consisting of Bi, Tl, Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm Yb and Lu; A is at lea... | 04/19/1994 |
| 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 |
| 5200390 | Co-precipitation process for preparing superconductor powder A fine stoichiometric superconductor powder may be co-precipitated from the addition of appropriate metal compound powders in ammonium carbonate. The co-precipitated powder is very homogeneous because the reaction progresses in liquid solution. For exampl... | 04/06/1993 |
| 5168095 | Method for synthesizing a composite oxide by citrating process A composite oxide synthesized by a citrating process and utilized in functional ceramics materials is prepared by the following process. Co-precipitants or mixtures of at least one component selected from the group consisting of carbonates, basic copper a... | 12/01/1992 |
| 5166130 | Superconductive ceramic molded product and a production process thereof A superconductive ceramic wire or film comprises 100 parts by weight of superconductive oxide crystal composed of a rare earth element, an alkaline earth metal, copper, and oxygen, and 0.2-5.0 parts by weight of copper oxide, thereof.... | 11/24/1992 |
| 5122505 | Carbonate-free inorganic nitrates or oxides and process thereof The present invention relates to an improved process to produce an essentially carbon-free nitrate of an alkali metal, alkaline earth metal, transition metal, lanthanide metal, actinide metal, metal, or mixtures thereof, which process comprises: Contactin... | 06/16/1992 |
| 5114702 | Method of making metal oxide ceramic powders by using a combustible amino acid compound This invention is directed to the formation of homogeneous, aqueous precursor mixtures of at least one substantially soluble metal salt and a substantially soluble, combustible co-reactant compound, typically an amino acid. This produces, upon evaporation... | 05/19/1992 |
| 5106824 | Method of manufacturing oxide superconductor and the precursor of the oxide superconductor comprising heat treating in a reducing atmosphere of either hydrogen or carbon monoxide under reduced pressure Disclosed is a method of manufacturing an oxide superconductor containing at least an alkaline earth metal and copper. This method comprises the steps of heating a material substance containing elements constituting the oxide superconductor, in an atmosph... | 04/21/1992 |
| 5071833 | Method for producing high-temperature superconducting ceramic products employing tractable ceramic precursors A tractable ceramic precursor and method for producing the same, capable of being formed into useful shapes at low temperatures and thereafter capable of transformation into high-temperature superconducting ceramics is provided. The method consists of pre... | 12/10/1991 |
| 5071826 | Organometallic 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... | 12/10/1991 |
| 5061683 | Process for making superconductors using barium hydroxide There is disclosed an improved process for preparing a superconducting composition having the formula Mw Az Cuv Ox wherein M is selected from the group consisting if Bi, Tl, Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm Yb ... | 10/29/1991 |
| 5055436 | Method for preparation of superconductor powders An improved process for preparing superconducting ceramic powder includes calcining superconducting precursor compounds in an atmosphere having a controlled amount of oxygen, generally not more than that found in air, the remainder of the atmosphere compo... | 10/08/1991 |
| 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 |
| 5023230 | Oxide superconductors encased in pan-derived carbon matrix Disclosed is a method of preparing a superconductor wherein a precursor oxide mixture is dispersed in an appropriate polymer matrix and shaped into a predetermined form following which the matrix and oxide precursor are respectively carbonized and sintere... | 06/11/1991 |
| 5023231 | Method for preparing a superconductive fiber of film A method for preparing a superconductive fiber or film of improved critical current density. The method involves spinning an aqueous solution optionally containing a mixture of metal salts corresponding to the superconductive YBa2 Cu3 | 06/11/1991 |
| 5021395 | Process for making superconductors and their precursors A process for preparing the superconductive material MBa2 Cu3 Ox, M being, inter alia, yttrium and x being from about 6.5-7 and a precursor material MBa2 Cu3 Oy, y being from about 6-6.5, b... | 06/04/1991 |
| 5021400 | Powder containing thallium, calcium, barium and copper Improved process for making Tl-Ca-Ba-CuO superconductors. A solution of the monocarboxylates (e.g., acetates) of Ca, Ba, and Cu is dried, calcined, mixed with Tl2 O3, and the mixture is heated to make a superconductor. The method min... | 06/04/1991 |
| 5011823 | Fabrication of oxide superconductors by melt growth method Superconductive oxide bodies such as wires, ribbons, rods, and other bulk bodies can be fabricated by a process that comprises melting precursor material, cooling at least of the melt such that a solid body of a desired shape results, and heat treating th... | 04/30/1991 |
| 4988671 | Process for producing a superconductive complex metal oxide Complex metal oxides are formed by calcining in molecular oxygen such as air at least one bimetallic complex of the formula A[BY] wherein A and B are metals and Y is a ligand associated with B. The bimetallic complexes are precipitated from aqueous soluti... | 01/29/1991 |
| 4978515 | Perovskite fibers from bimetal complexes Complex metal oxides are formed by calcining in molecular oxygen such as air at least one bimetallic complex of the formula A[BY] wherein A and B are metals and Y is a ligand associated with B. The bimetallic complexes are precipitated from aqueous soluti... | 12/18/1990 |
| 4959347 | Forming homogeneous precursers of Bi-Sr-Ca-Cu via carboxylates in the presence of oxidizing agents A process for producing a superconductor of an oxide system, which comprises uniformly dissolving, dispersing or suspending in a solvent metal elements for constituting the oxide system at least partly in the form of carboxylates with the rest, if any, be... | 09/25/1990 |
| 4943557 | Method of making a high density YBa Cu3 Ox superconductor material In a process for making the superconductive composition YBa2 Cu3 Ox, cupric carbonate or cupric oxalate is used as the copper source and barium carbonate as the barium source to achieve higher densification.... | 07/24/1990 |
| 4931427 | Process for producing metal oxide superconductor-polymer composites and composites thereby formed Process for producing metal oxide superconductor (MOS)-polymer (P) composites by (i) mixing a monomer and initiator with MOS followed by in-situ polymerization of the monomer, (ii) mixing MOS with a polymer solution followed by removal of solvent, (iii) b... | 06/05/1990 |
| 4916114 | Method for producing a layer-like composition of oxide-ceramic superconducting material With the method a layer-like composition of an oxide-ceramic superconducting material with a high transition temperature and great current carrying capacity on the basis of a materials system containing metallic components and oxygen can be prepared. The ... | 04/10/1990 |
| 4900536 | Preparation of precursors for yttrium-containing ceramic superconductors This is a process for making precursors for ceramic superconductor. It utilizes fluidized bed chlorination of a rare earth ore (e.g. xenotime or monazite) a separation of yttrium chloride by differential condensation at 725°-1200° C. and reaction with a... | 02/13/1990 |
| 4897378 | Preparation of thin film superconducting oxides Cations such as La, Sr, Cu, or Y, Ba, Cu are dissolved in an organic solvent such as ethylene glycol and citric acid. The solution is formed into either a free-standing or supported film which is dried to produce a solid organic polymer. The polymer is th... | 01/30/1990 |
| 4866031 | Process for making 90 K superconductors from acetate precursor solutions There is disclosed an improved process for preparing a superconducting composition having the formula MBa2 Cu3 Ox wherein M is selected from the group consisting of Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu; x is from a... | 09/12/1989 |
