Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7887644 | Superconductive elements containing copper inclusions, and a composite and a method for their production The invention relates to a composite (1), comprising a Cu—Sn bronze matrix (2) and filaments (3) surrounded by the bronze matrix (2), wherein the filaments (3) contain niobium (═Nb) or a Nb alloy, characterized in that the fila... | 02/15/2011 |
| 7585377 | Critical current density in NbSn superconducting wire Critical current densities of internal tin wire having values of at least 2000 A/mm2 at temperature of 4.2 K and in magnetic field of 12 T are achieved by controlling the following parameters in a distributed barrier subelement design: wt % Sn in bronze; ... | 09/08/2009 |
| 7476281 | Method for producing a superconductive element A method for producing a superconductive element, in particular a multifilament wire, starting from a composite (1) comprising a bronze matrix containing Cu and Sn, in which at least one elongated structure containing Nb or an Nb alloy, in particular NbTa, is embedd... | 01/13/2009 |
| 7476280 | Method for producing a superconductive element A method for producing a superconductive element, in particular a multifilament wire, starting from a composite (1) comprising a bronze matrix containing Cu and Sn, in which at least one elongated structure containing Nb or an Nb alloy, in particular NbTa, is... | 01/13/2009 |
| 7459030 | Manufacturing method of NbSn superconductive wire using powder technique Disclosed is a manufacturing method of an Nb3Sn superconductive wire using a powder technique, the method including the steps of: filling, as a raw powder, an intermetallic compound powder obtained from a metallic powder containing at least one metallic p... | 12/02/2008 |
| 7459031 | Method for producing NbSn superconductive wire material using powder process A method for producing an Nb3Sn superconductive wire material using a powder process is provided, in which a powdered raw material is filled in a sheath made of Nb or an Nb-based alloy, and the above sheath is subjected to diameter reduction to form a wir... | 12/02/2008 |
| 7368021 | Critical current density in NbSn superconducting wire Critical current densities of internal tin wire to the range of 3000 A/mm2 at temperature of 4.2 K and in magnetic field 12 T are achieved by controlling the following parameters in a distributed barrier subelement design: wt % Sn in bronze; atomic Nb:Sn;... | 05/06/2008 |
| 7354486 | Process for producing Ge-added NbAl base superconducting wire material A composite multi-core wire rod in which a plurality of Al alloy wires containing 15 at % to 40 at % of Ge are arranged in Nb matrix at a core diameter of 2 μm to 20 μm is subjected to heating for at least five hours at a temperature ranging from 1300° C. to 1600... | 04/08/2008 |
| 7352183 | Method and apparatus for locally shielding MR superconducting magnet coil A method and apparatus for local grading shielding includes a gradient shield loop having a plurality of arcs positioned adjacent to a superconducting magnet coil. The plurality of arcs magnetically couple with a gradient magnetic field generated by a magnetic field... | 04/01/2008 |
| 7325293 | Zirconia-stabilized multi-filamentary niobium-tin superconducting wire A multi-filament superconducting wire in which the filaments comprise zirconia-stabilized ultra-fine grain Nb3Sn. The superconducting wire is formed by wire-drawing a preform comprising a metallic matrix and at least one niobium alloy rod having zirconium... | 02/05/2008 |
| 7210216 | Method of producing superconducting wire A method of producing Nb3Sn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in... | 05/01/2007 |
| 7146709 | Process for producing superconductor A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantal... | 12/12/2006 |
| 7134181 | Method for producing NbAl superconductive wire A superfine multi-core Nb3Al superconductive wire is produced by getting a Nb3Al superconductive wire ready which was obtained by subjecting a precursor wire having a superfine multi-core structure in which a plurality of Nb/Al complex cores ar... | 11/14/2006 |
| 7089647 | Increasing the copper to superconductor ratio of a superconductor wire by cladding with copper-based strip A method for increasing the copper to superconductor ratio of a superconductor core wire by forming a copper-based strip about the core wire which at least partially encloses the core wire in contact therewith by deforming the strip longitudinally into a U shape nes... | 08/15/2006 |
| 6932874 | Method for increasing the copper to superconductor ratio in a superconductor wire A method for producing a superconductor having a high copper to superconductor composition (Cu/SC) ratio by cross-sectional area. An assembly is prepared formed of one or more fine filaments of a superconductor composition or of a precursor component for a supercond... | 08/23/2005 |
| 6918172 | Process for manufacturing Nb3Sn superconductor A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element h... | 07/19/2005 |
| 6849137 | Nb3Sn-system superconductive wire An Nb3Sn-based superconductive wire which, when used in a superconductive magnet, manifests sufficient strength also against force along the radius direction in operating the magnet and reveals little deterioration in properties due to mechanical strain a... | 02/01/2005 |
| 6845254 | Nb3Ga multifilamentary superconducting wire and process for preparing the same By rapidly heating a precursor wire having a multifilamentary structure in which multiple composite cores in which a composite compound of an Nb—Ga compound and Nb is embedded in Nb are embedded in Nb, Ta, Nb-base alloy or Ta-base alloy as a matrix material to a t... | 01/18/2005 |
| 6508889 | Process for the production of Nb3A1 extra-fine multifilamentary superconducting wire A high-performance Nb3 Al extra-fine multifilamentary superconducting wire is produced simply and inexpensively through the improvement of critical values, Tc, Hc2 and Jc, without the addition of third elements such as Ge, Si and Cu.... | 01/21/2003 |
| 6376099 | CU-containing NB3A1 multifilamentary superconductive wire and process for producing the same A Cu-containing Nb3 Al multifilamentary superconductive wire having a multifilamentary (superfine multi-core structure that a large number of micro-complex cores each obtained by complexing a Cu--Al alloy containing Cu in an amount of more than... | 04/23/2002 |
| 6372054 | Process for producing ultrafine multifilamentary Nb3(A1,Ge) or Nb3(A1,Si) superconducting wire A process for producing an ultrafine multifilamentary superconducting Nb3 (Al,Ge) wire capable of generating a high critical current density comprising: preparing a composite core material comprising an A1--(2-30)at. % Ge alloy (where at. % rep... | 04/16/2002 |
| 6358331 | Method for improving quality of triniobium tin superconductor in manufacturing environment by controlling iron content in molten tin bath A tin alloy bath with controlled iron content is used for coating a niobium-base substrate with tin in a manufacturing process for triniobium tin superconductor. One hundred twenty-five parts per million by weight or less of iron is used in tin alloy bath... | 03/19/2002 |
| 5690991 | Superconducting joint between Nb3 Sn tape and NbTi wire for use in superconducting magnets A method of forming a superconducting joint between the Nb3 Sn layer of a superconducting tape and a superconducting NbTi wire through use of a Pb-Bi bath, joint securing arrangement and mold around the joint.... | 11/25/1997 |
| 5628836 | Method of preparing Nb3 Al superconducting wire The method of preparing an NB3 Al superconducting wire comprises the steps of passing an Nb/Al composite wire consisting of an Nb metal or an Nb alloy and an Al metal or an Al alloy through a furnace for heating the same from the room temperatu... | 05/13/1997 |
| 5628835 | Nb3 Al Group superconductor containing ultrafine Nb2 Al particles Object of the present invention is to obtain a Nb3 Al group superconductor having a high critical current density under a whole range of magnetic field from low to high such as 20 T level, manufacturing methods thereof, a Nb3 Al grou... | 05/13/1997 |
| 5620532 | Method for manufacturing Nb3 Al group superconductor In a method for manufacturing Nb3 Al phase by a diffusion reaction of Nb2 Al phase and Nb phase, a part of the Nb2 Al phase is remained and dispersed in the Nb3 Al phase homogeneously as for magnetic flux pinnin... | 04/15/1997 |
| 5597423 | Niobium tin sheet for superconducting magnets A method to provide large sheets of Nb3 Sn superconducting material suitable for use as a superconducting gradient shield in a magnetic resonance imaging system magnet by heating an anodized Nb-1 Zr sheet, tin dipping and reacting the sheet, an... | 01/28/1997 |
| 5547518 | Enhanced method for cleaning foil Foils used to manufacture superconductor materials can effectively be cleaned by heat treatment prior to anodization and further processing steps. The heat treatment can be in conjunction with other cleaning processes or separate.... | 08/20/1996 |
| 5540787 | Method of forming triniobium tin superconductor The solid-liquid diffusion process used to form triniobium tin superconductor is improved by oxidizing the tin coated niobium substrate with an oxide layer on the surface of the tin coat after tin dipping. The oxide layer can be added to the tin coat by p... | 07/30/1996 |
| 5505790 | Method for enhancing critical current of triniobium tin A method is described which increases the critical current of triniobium tin by bonding thermal contraction control layers to the triniobium tin superconducting articles at a process temperature to form a composite, and subsequently cooling the composite ... | 04/09/1996 |
| 5504984 | Methods of manufacturing Nb3 Al superconducting wire and coil A method of manufacturing an Nb3 Al superconducting wire includes a step of forming a wire by a jelly-roll process, a first thermal step of heating the obtained wire at a temperature of 500° to 700° C. for at least 10 hours for diffusing Al i... | 04/09/1996 |
| 5501746 | Process for preparing superconducting wire A process for preparing a superconducting wire having improved superconducting characteristics in shortened period of time at a reduced cost, which comprises the steps of forming a plurality of holes in each of Cu base metal plates, stuffing the plates in... | 03/26/1996 |
| 5472936 | Method for making triniobium tin semiconductor A method for making triniobium tin foil is disclosed where the niobium-based foil with an oxide layer is passed continuously at a set speed into an enclosed chamber. The enclosed chamber has an inert atmosphere which is substantially oxygen free. Upon ent... | 12/05/1995 |
| 5445681 | Superconductor and process of manufacture A method for producing a superconductor by partial inter diffusion of layers of metal under a diffusion heat treatment to provide a ductile beta phase alloy, along with undiffused metal layers to permit ease of extrusion and drawing to fine layer thicknes... | 08/29/1995 |
| 5362331 | Process and apparatus for producing Nb3 Al super-conducting wire An electromagnetically stable Nb3 Al multifilamentary superconducting wire having a high current density at a high level of magnetic field such as 20 tesla is provided by cold drawing a composite multicore consisting of a large number of Al or ... | 11/08/1994 |
| 5228928 | Method of manufacturing Nb3 Sn superconducting wire A method of manufacturing an Nb3 Sn superconducting wire includes the steps of composing a desired number of rods, constituted by a material selected from the group consisting of Nb and an Nb alloy, in a Cu-Sn-based alloy matrix containing 15.1... | 07/20/1993 |
| 5211765 | Method for improving the springback qualities of superconductors The invention relates to a method for improving the springback qualities of superconductors. According to the method, a superconducting wire is in the final stage of production cold worked with a minimal reduction, in which case the springback qualities a... | 05/18/1993 |
| 5182176 | Extruded wires having layers of superconducting alloy and refractory meal encased in a normal metal sheath A Type II superconducting filament is formed by surrounding a Type II superconducting alloy ingot with layers of a fine grain Type II superconducting alloy sheet, a barrier layer and a copper extrusion can. The composite is then reduced to a filament by h... | 01/26/1993 |
| 5174831 | Superconductor and process of manufacture A high field superconductor is formed of an A-15 superconductor in the form of a layer thinner than 1000Å. This layer is carried by a support layer formed of a normal metal, the support layer having a thickness less than 1000Å.... | 12/29/1992 |
| 5139893 | Superconducting alloy core circumscribed by multiple layers of NbTi and refractory metal barrier layer having a normal metal sheath A Type II superconducting filament is formed by surrounding a Type II superconducting alloy ingot with layers of a fine grain Type II superconducting alloy sheet, a barrier layer and a copper extrusion can. The composite is then reduced to a filament by h... | 08/18/1992 |
