Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7985714 | NbSn superconducting wire and precursor therefor A precursor for fabricating a Nb3Sn superconducting wire by an internal Sn process includes one or a plurality of stabilizing copper portions collectively disposed in the center, each stabilizing copper portion being provided with a diffusion barrier laye... | 07/26/2011 |
| 7338921 | MgB2 superconductor and method for preparation thereof An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs witho... | 03/04/2008 |
| 7326434 | Precursor solutions and methods of using same Superconductor precursor solutions are disclosed. The precursor solutions contain, for example, a salt of a rare earth metal, a salt of an alkaline earth metal and a salt of a transition metal. The precursor solutions can optionally include a Lewis base. The precurs... | 02/05/2008 |
| 7135161 | Method of producing nanosized oxide powders A method of forming metal oxide powders includes the steps of solid state mixing of at least one metal nitrate salt, such as Fe(NO3)3 or a combination of metal nitrate salts such as Zn(NO3)3,6H2O and Ga(NO3... | 11/14/2006 |
| 6812191 | Superconducting bodies made of zinc-doped copper oxide material Superconductive bodies composed of cuprate material having a very critical current density with outer magnetic fields of up to 5 tesla when the bodies have a content of zinc cations. The bodies can also be subjected to modified oxygen treatment. The preferred cuprat... | 11/02/2004 |
| 6677278 | Pb-Bi-Sr-Ca-Cu-oxide powder mix with enhanced reactivity and process for its manufacture An Oxide Precursor Powder from the Pb--Bi--Sr--Ca--Cu--O 2223 System can be produced by heat treating powder, produced using the Spray Pyrolysis Process as described in: GB2210605 or EP0681989 between 700° C. and 850° C. in an atmosphere containing betw... | 01/13/2004 |
| 6627582 | Large superconductor and its intermediate, and method for manufacturing the same A large superconductor intermediate of REBa2 Cu3 Ox system (where RE is one kind or a combination of rare earth elements including Y), characterized by a structure that oxide superconductors having non-superconductive phas... | 09/30/2003 |
| 6562761 | Coated conductor thick film precursor Methods for preparing thick film rare-earth Ba2 Cu3 O7-δ (such as YBCO) superconductive layers, particularly including deposition of a precursor as a dispersion of solid-state materials, including a binder or a solvent or... | 05/13/2003 |
| 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 |
| 6332967 | Electro-deposition of superconductor oxide films Methods for preparing high quality superconducting oxide precursors which are well suited for further oxidation and annealing to form superconducting oxide films. The method comprises forming a multilayered superconducting precursor on a substrate by prov... | 12/25/2001 |
| 6295716 | Production and processing of (Bi,Pb) SCCO superconductors A multicomponent powder useful in the formation of BSCCO-2223 is provided comprised of orthorhombic BSCCO-2212 and alkaline earth cuprate, without formation of undesirable secondary phases such as alkaline earth bismuthates and alkaline earth plumbates. A... | 10/02/2001 |
| 6219901 | Oxide superconductor precursors A composite for preparation of an oxide superconductor includes a primary alloy phase of constituent elements of a desired oxide superconductor; and a secondary phase comprising copper, the secondary phase supported by the primary alloy phase. The composi... | 04/24/2001 |
| 6043198 | High-Tc superconductor or precursor material for the oxide-powder-in-tube method (OPIT) The present invention relates to a process for preparing a high-Tc superconductor as a precursor material for the oxide-powder-in-tube method, which involves mixing the oxides of the elements Bi, Sr, Ca and Cu and completely melting them at tem... | 03/28/2000 |
| 6038462 | Structure and method of manufacture for minimizing filament coupling losses in superconducting oxide composite articles A multifilamentary superconducting composite article comprising multiple substantially electrically decoupled domains, each including one or more fine, preferably twisted filaments of a desired superconducting oxide material. In a preferred embodiment, th... | 03/14/2000 |
| 5914297 | Precursor composites for oxygen dispersion hardened silver sheathed superconductor composites An oxide superconductor composite having improved texture and durability. The oxide superconductor composite includes an oxide superconductor phase substantially surrounded with/by a noble metal matrix, the noble metal matrix comprising a metal oxide in a... | 06/22/1999 |
| 5851957 | Oxide superconductor precursors A composite for preparation of an oxide superconductor includes a primary alloy phase of constituent elements of a desired oxide superconductor; and a secondary phase comprising copper, the secondary phase supported by the primary alloy phase. The composi... | 12/22/1998 |
| 5814585 | Bi(Pb)SrCaCuO superconductors The invention relates to a spray pyrolytic process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the... | 09/29/1998 |
| 5789348 | Preparation of superconductor precursor powders A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substra... | 08/04/1998 |
| 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 |
| 5614472 | Spray-pyrolysis process of preparing superconductor precursors The invention relates to a spray pyrolyric process for the preparation of multi-element metal oxide powders useful as precursors of high temperature superconductor ceramics. Aerosols of aqueous solutions containing corresponding metal salts admixed in the... | 03/25/1997 |
| 5550104 | Electrodeposition process for forming superconducting ceramics A method for making superconducting ceramic precursor films by electrodeposition. In the electrodeposition step, superconducting precursor metal ions are electrodeposited onto a working electrode by applying a combined direct current voltage upon which is... | 08/27/1996 |
| 5486501 | Nonequilibrium precursors for superconductor materials and process for making shaped superconductor articles therefrom BaCuO2.5 containing precursors for superconducting materials and process for making shaped superconductor articles therefrom.... | 01/23/1996 |
| 5476837 | Process for preparing superconducting film having substantially uniform phase development A process for preparing a superconducting film, such as a thallium-barium-calcium-copper oxide superconducting film, having substantially uniform phase development. The process comprises providing an electrodeposition bath having one or more soluble salts... | 12/19/1995 |
| 5413987 | Preparation of superconductor precursor powders A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substra... | 05/09/1995 |
| 5395821 | Method of producing Pb-stabilized superconductor precursors and method of producing superconductor articles therefrom Metal oxide superconductor powder precursors are prepared in an aerosol pyrolysis process. A solution of the metal cations is introduced into a furnace at 600°-1000° C. for 0.1 to 60 seconds. The process produces micron to submicron size powders without... | 03/07/1995 |
| 5368768 | Copper and barium (dialkylaminoalcoholate) solutions Solubilized metal (dialkylaminoalcoholate) compounds in organic solvent can serve as a source of metal values for metal oxide-containing superconductor compositions. Stable solutions, resistant to precipitation problems, can be formed by reaction of a dia... | 11/29/1994 |
| 5310707 | Substrate material for the preparation of oxide superconductors A substrate material for the preparation of an oxide superconductor includes two different rare earth elements A' and A" in the IIIa group, Ga, and 0, the atomic ratio of these elements being expressed as A'1-xA"xGaO3 (where 0 | 05/10/1994 |
| 5300483 | Process for preparing shaped superconductor materials via nonequilibrium precursors A method is provided for preparing a precursor of a superconductor containing atoms of oxygen, atoms of copper and atoms of at least two other metals and sufficient atoms of oxygen so that up to, but no more than, one atom of copper is in the trivalent st... | 04/05/1994 |
| 5300486 | Synthesis of BiPbSrCaCuO superconductor A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bia Pbb Src Cad Cue Of wherein a is from about 1.7 to a... | 04/05/1994 |
| 5290759 | Process for making high temperature superconducting powders Superconducting precursors, which can be made into metal oxide superconductors such as YBa2 Cu3 O6+x, and a process for their manufacture by the coprecipitation of 1-2-3 nitrates using inexpensive precipitating agents such... | 03/01/1994 |
| 5280011 | Alignment technique for anisotropicly conductive crystals utilizing a non-static magnetic field A method of processing polycrystalline material to achieve at least uniaxial crystal alignment utilizing the anisotropy of conductivity of the crystalline material. The polycrystalline material is provided in a fluid suspension or other malleable form. A ... | 01/18/1994 |
| 5252314 | Method for producing coprecipitated multicomponent oxide powder precursors using guanidine oxalate as precipitating agent Guanidine oxalate is used as a precipitating agent in the coprecipitation of multicomponent oxide powder precursors. A solution of a soluble inorganic salt is combined with a solution of guanidine oxalate. A resultant metal oxalate is precipitated from th... | 10/12/1993 |
| 5219829 | Process and apparatus for the preparation of pulverulent metal oxides for ceramic compositions The invention relates to a process and an apparatus for converting metal nitrate or mixed metal nitrate solutions into the corresponding metal oxides in a microwave field. The invention consists in heating, while the feed stream is being metered in, in su... | 06/15/1993 |
| 5177055 | Process for the preparation of superconductor precursor metal oxide powders comprising spraying a mixed metal salt solution into a horizontal furnace Disclosed is a process for the preparation of multi-element metal oxide, high temperature superconductor precursor powder comprising spraying a homogenous solution of a multi-element metal salt solution mixed in a stoichiometric ratio corresponding to the... | 01/05/1993 |
| 5162299 | Preparation of superconducting oxide precursor materials by pyrolysis from concentrated nitric acid solution A superconducting oxide precursor material is prepared by dissolving soluble compounds containing the non-oxygen elements of the oxide in concentrated nitric acid, in which a decomposing agent for the nitrate of the nitric acid selected from urea and sucr... | 11/10/1992 |
| 5152973 | Synthesis of submicron powders under reduced oxygen pressure The invention process provides a metal oxide, or oxides of more than one more metal, wherein the oxides have a mean particle size less than 1 micron. The oxides are made by steps including (1) reacting an aqueous solution of a metal salt (or salts) that f... | 10/06/1992 |
| 5149682 | Manufacturing method for superconducting ceramics and products thereof Superior homogeneity in ceramic materials is achieved by reacting certain soluble metal salts with quaternary ammonium carbonates to form co-precipitated metal carbonates. The precipitate can be recovered and processed to make superconductors. For example... | 09/22/1992 |
| 5142074 | High purity copper alkoxides 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 ... | 08/25/1992 |
| 5140005 | Ceramic superconductive powder A superconductive oxide powder is produced by a method comprising spray drying a slip to form agglomerates, feeding the agglomerates sequentially through a first and a second oxygen supported combustion flame for fusing the fine particles in the agglomera... | 08/18/1992 |
| 5126321 | Preparation of Bi-Sr-Ca-Cu-O superconductors from oxide-glass precursors A superconductor and precursor therefor from oxide mixtures of Ca, Sr, Bi and Cu. Glass precursors quenched to elevated temperatures result in glass free of crystalline precipitates having enhanced mechanical properties. Superconductors are formed from th... | 06/30/1992 |
