Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7358212 | Method for producing multinary metal oxide powders in a pulsed reactor The invention relates to a method for producing a one-part, multinary metal oxide power which is suitable for producing high-temperature superconductors. To this end, a mixture of the corresponding metal salts and/or metal oxides and/or metals in the requisite stoic... | 04/15/2008 |
| 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 |
| 7247603 | Charge dissipative dielectric for cryogenic devices A Superconducting Quantum Interference Device (SQUID) is disclosed comprising a pair of resistively shunted Josephson junctions connected in parallel within a superconducting loop and biased by an external direct current (dc) source. The SQUID comprises a semiconduc... | 07/24/2007 |
| 6926921 | Imprint lithography for superconductor devices One aspect of this disclosure relates to a method of building a superconductor device on a substrate, comprising depositing an imprint layer on at least a portion of the substrate. The imprint layer is imprinted to provide an imprinted portion of the imprint layer a... | 08/09/2005 |
| 6410487 | Large area bulk superconductors A bulk superconductor having a thickness of not less than about 100 microns is carried by a polycrystalline textured substrate having misorientation angles at the surface thereof not greater than about 15°; the bulk superconductor may have a thickness of... | 06/25/2002 |
| 6143697 | Method for producing superconducting thick film A method for producing a superconducting thick film involves the steps of forming a thick layer comprising a superconducting material on a substrate; firing the thick layer formed on the substrate; subjecting the fired thick layer to cold isostatic pressi... | 11/07/2000 |
| 6140275 | Ceramic substrate for bi-cuprate superconductors and a process for preparing the same A novel ceramic substrate useful for the preparation of superconductors, said substrate having the formula Ba2 DyMO5.5 where M represents at least one of the metals Zr, Sn and Hf and a process for the preparation of said ceramic subs... | 10/31/2000 |
| 6121206 | Process for preparing YBCO superconducting films on a ceramic substrate A novel ceramic substrate useful for the preparation of superconducting films, said substrate having the formula REBa2 MO6 where RE represents rare earth metals--Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and M represents met... | 09/19/2000 |
| 6040275 | Preparation of superconducting films and a process for preparing the films A novel ceramic substrate useful for the preparation of superconducting films, said substrate having the formula REBa2 MO6 where RE represents rare earth metals--Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and M represents met... | 03/21/2000 |
| 5786306 | Synthesis of high TC superconducting coatings and patterns by melt writing and oxidation of metallic precursor alloys A method is provided for fabrication of superconducting oxides and superconducting oxide composites and for joining superconductors to other materials. A coating of a molten alloy containing the metallic elements of the oxide is applied to a substrate sur... | 07/28/1998 |
| 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 |
| 5648320 | Method of manufacturing ceramic superconductor circuit board Circuit board devices are provided based on use of high temperature superconducting ceramic polymers comprising high temperature superconducting ceramic powders distributed in electrically insulative organic polymers which are thermosetting by reaction of... | 07/15/1997 |
| 5646097 | Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor A method is disclosed for fabricating a polycrystalline thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field. A powder precursor containing compounds other than thallium is ... | 07/08/1997 |
| 5629269 | Process for forming oxide superconducting films with a plurality of metal buffer layers Disclosed is a process for forming a super-conducting film, which a multi-layer metal film (buffer film) is formed at a specific temperature on a ceramic substrate and a superconducting film is formed at a specific temperature on the multi-layer metal fil... | 05/13/1997 |
| 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 |
| 5338507 | 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... | 08/16/1994 |
| 5312803 | Process for producing Bi- and Pb-containing oxide superconducting wiring films In an oxide superconducting film wiring, when the line width is reduced, the evaporation of a component during firing becomes so vigorous that it becomes impossible to form a desired single crystal phase, which causes a significant lowering in the propert... | 05/17/1994 |
| 5286713 | Method for manufacturing an oxide superconducting circuit board by printing A superconducting circuit board is provided comprising a sintered alumina board containing more than 99% by weight of alumina and an interconnection pattern of an superconducting ceramics formed on the alumina board. Adhesion of the interconnection patter... | 02/15/1994 |
| 5260265 | Production of oxide superconducting films by multilayer deposition An Improved method of manufacturing superconducting ceramics in the form of a thin film are described. The thin film is first formed of a superimposed structure composed of three films which contain a rare earth metal, an alkalline earth metal and copper ... | 11/09/1993 |
| 5232908 | Method of manufacturing an oxide superconductor/metal laminate A method of manufacturing an oxide superconductor including (a) alternately laminating at least one first layer including an oxide superconductor or a precursor thereof with at least one second layer including a metal material to form a laminated body, (b... | 08/03/1993 |
| 5221662 | Superconducting screen printing ink and process for producing a thick superconducting film using this ink A superconducting screen printing ink comprises an organic composition, a mineral binder and a mineral composition which is a high temperature superconducting Bi-Sr-Ca-Cu-O material or a precursor therefore. A thick superconducting film is produced by scr... | 06/22/1993 |
| 5189010 | Process for preparing superconductive thick films A process of forming on a substrate a coating of a precursor of a crystalline rear earth alkaline earth copper oxide or heavy pnictide mixed alkaline earth copper oxide electrical conductor and converting the precursor to the crystalline electrical conduc... | 02/23/1993 |
| 5180707 | Method for synthesis of high Tc superconducting materials by oxidation and press coating of metallic precursor alloys A superconductor oxide composite is prepared using a press coating technique. The coated layers on various substrates exhibit good adhesion, textured microstructure, and improved Jc.... | 01/19/1993 |
| 5173678 | Formed-to-shape superconducting coil A superconducting coil assembly. The assembly includes an insulating substrate, a plurality of insulating layers disposed in a stacked assembly on the substract, and a superconducting spiral pattern between the substrate and the adjacent insulating layer ... | 12/22/1992 |
| 5137868 | Method for preparing a superconducting device A method for manufacturing a superconducting device comprises the steps of forming a blocking film by means of an optical vapor deposit reaction on the surface of an oxide superconducting material; and then adding oxygen into the oxide superconducting mat... | 08/11/1992 |
| 5124311 | Structure of ceramic superconductive wiring and process of fabrication thereof There is disclosed the structure of a superconductive wiring fabricated on an insulating substrate comprising a conductive pattern having at least one wiring strip of a superconductive ceramic formed on the insulating substrate and a protective film cover... | 06/23/1992 |
| 5100863 | Superconducting ceramics manufacturing method An improved method of manufacturing superconducting ceramics in the form of a thin film are described. The thin film is first formed of a superimposed structure composed of three films which contain a rare earth metal, an alkaline metal and copper respect... | 03/31/1992 |
| 5098884 | Method for producing a superconducting pattern by doping impurities A superconducting oxide ceramic pattern is described. The pattern is comprised of a high Tc superconducting region and a low Tc superconducting region which exhibits a resistivity at the liquid nitrogen temperature while the high Tc region is superconduct... | 03/24/1992 |
| 5096878 | Method for production of bi-containing superconducting ceramics laminates A method for making superconductive ceramics laminates comprises forming a thick film of a composite oxide comprising bismuth, strontium, calcium, copper and oxygen on a flat plane of a substrate, and orienting and crystallizing the thus formed film by he... | 03/17/1992 |
| 5096881 | Preparation of a superconducting Tl2 Ca2 Ba2 Cu3 O.sub. x 2 O3 vapor The present invention provides a method for making Tl-Ca-Ba-Cu-O superconductive materials in a film shape. Pursuant to the method, after placing a Ca2 Ba2 Cu3 O7 powder onto some suitable substrate, such as pla... | 03/17/1992 |
| 5091221 | Method for preparing superconductor sputtering target A method for preparing a superconductor sputtering target is disclosed in which sputtering targets for coating superconductor films can be prepared essentially by mixing oxides (carbonates or fluorides) of metals such as Y, Ba, Cu (Bi, Pb), Sr, Ca,Cu) wit... | 02/25/1992 |
| 5089465 | Process for producing oxide superconducting thick films by screen printing A process for producing a superconducting thick film including steps comprising subjecting a powder mixture of oxides or carbonates of Ba, Y and Cu each having an average particle size of less than 5 μm to preliminary sintering, pulverizing the prelimina... | 02/18/1992 |
| 5087607 | Process for preparing superconductive thick films A process of forming on a substrate a coating of a precursor of a crystalline rare earth alkaline earth copper oxide or heavy pnictide mixed alkaline earth copper oxide electrical conductor and converting the precursor to the crystalline electrical conduc... | 02/11/1992 |
| 5075200 | Process of forming superconductive wiring strip A process of forming a superconductive wiring strip incorporates a deposition of a raw material on a mask layer followed by a lift-off stage for patterning the wiring strip, and the mask layer is formed for the miniature wiring strip by using lithographic... | 12/24/1991 |
| 5075282 | Printing method of forming oxide superconducting films on La2 Cu O.sub . A method of manufacturing a conducting or superconducting film comprises the steps of providing a powdered composition of complex oxide conducting or superconducting materials represented by the general formula: (Lal-x Mx)y | 12/24/1991 |
| 5032571 | Method of manufacturing oxide superconducting materials Bi-based oxide superconducting films are deposited on Bi-based oxide ceramic substrates by screen printing, laser sputtering and other coating methods wherein the substrates have a similar crystalline structure as the Bi-based oxide superconducting films.... | 07/16/1991 |
| 4997812 | Superconducting thick film An Ytrium Barium Copper Oxide-based thick-film paste is disclosed, which when deposited on an alumina substrate is superconducting above the termperature of liquid nitrogen and substantially free of mechanical defects such as cracking or peeling. A method... | 03/05/1991 |
| 4992415 | Method for fabricating ceramic superconductors A method for fabricating a ceramic superconductor comprising the following steps: mixing a copper or copper alloy metal, a first metal oxide or carbonate which includes one element selected from group IIA of the Chemical Periodic Table, and a second metal... | 02/12/1991 |
| 4965247 | Superconducting coil and a method for producing the same A superconducting coil comprising a support (1,10) and at least one ring-shaped and/or spiral turn (2) of superconductor which is composed of superconducting compound oxide and is supported on a surface of said support.... | 10/23/1990 |
| 4877768 | Processes for the preparation of copper oxide superconductors A process for the preparation of copper oxide superconductors which comprises (1) mixing and grinding yttrium nitrate hydrate, copper nitride, and an oxidizing agent such as barium peroxide in a suitable solvent; (2) forming a paste thereof; (3) applying ... | 10/31/1989 |
