Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7432229 | Superconductors on iridium substrates and buffer layers Laminated, biaxially textured superconductors include Ir-based buffer layers and/or substrates. ... | 10/07/2008 |
| 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 |
| 7312182 | Rare earth metal compounds for use in high critical temperature thin film super-conductors Rare earth metal containing compounds of the formula Sr2LuSbO6 and Sr2LaSbO6 have been prepared as high critical temperature thin film superconductor structures, and can be used in other ferroelectrics, pyroelectrics, piez... | 12/25/2007 |
| 7268099 | Enclosed ceramic filament In the present invention, a superconducting (sc) ceramic filament is enclosed in a silver sheath which is sealed therearound by applying silver powder between the surfaces of said sheath, pressing the surfaces and powder into contact and then applying sufficient hea... | 09/11/2007 |
| 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 |
| 7231239 | Super conducting cable conductor with rebco-coated conductor elements The present invention relates to a superconducting cable conductor which contains a carrying element, on which is wound at least one layer comprising two or more superconducting conductor elements, the individual conductor elements of each layer being arranged next ... | 06/12/2007 |
| 7226893 | Superconductive articles having density characteristics A superconductive article is disclosed, having a substrate a buffer layer overlying the substrate, and a superconductive layer overlying the buffer layer. According to embodiments, the article may have low density characteristics, associated with the article as a wh... | 06/05/2007 |
| 7175735 | Method and apparatus for manufacturing coated conductor Disclosed herein is a technique for manufacturing a superconducting tape grown epitaxially by a replication process. According to the technique, a long superconducting tape can be manufactured using a loop-shaped base. Further disclosed is a method for manufacturing... | 02/13/2007 |
| 7129196 | Buffer layer for thin film structures A composite structure including a base substrate and a layer of a mixture of strontium titanate and strontium ruthenate is provided. A superconducting article can include a composite structure including an outermost layer of magnesium oxide, a buffer layer of stront... | 10/31/2006 |
| 7109151 | Superconducting articles, and methods for forming and using same A superconducting tape is disclosed, including a substrate, a buffer layer overlying the substrate, a superconductor layer overlying the buffer layer, and stabilizer layers overlying opposite sides of the tape. Also disclosed are components incorporating superconduc... | 09/19/2006 |
| 7071149 | Method of producing biaxially textured buffer layers and related articles, devices and systems A superconductor article includes a substrate and a first buffer film disposed on the substrate. The first buffer film includes a polycrystalline material. An IBAD (ion-beam assisted deposition) second buffer film is disposed on the first buffer film, the second buf... | 07/04/2006 |
| 7071148 | Joined superconductive articles A superconducting article includes a first superconductive segment having a nominal thickness tn1, a second superconductive segment having a nominal thickness tn2, and a joint region comprising a splice connecting the first and second supercond... | 07/04/2006 |
| 7001870 | Method for joining oxide superconductors and joined oxide superconductor The present invention provides a method for joining an RE123 oxide superconductor matrix obtained by a melt process by the use of a solder material. The (110) plane of an RE123 oxide superconductor matrix obtained by a melt process is used as the plane to be joined,... | 02/21/2006 |
| 6985761 | Superconducting cable In order to reduce the AC losses in a superconducting conductor element subjected to an external magnetic field and through which a current flows, tapes of superconducting material of each layer are wound at such a mutual distance that the gap between the supercondu... | 01/10/2006 |
| 6957093 | Structure and method of application for protecting the superconductivity of superconducting composites A structural arrangement of superconducting composites is provided to protect their superconductivity in such a way that these composites are electrically connected in a certain manner. The invention may be practiced with any desired superconducting material, and bi... | 10/18/2005 |
| 6953770 | MgB2—based superconductor with high critical current density, and method for manufacturing the same The present invention relates to an MgB2-based superconductor that is easy to manufacture and well suited to mass production, and that exhibits excellent superconducting characteristics (such as a high critical current density) while still retaining the h... | 10/11/2005 |
| 6943136 | Superconducting structure A superconductive structure including a dielectric oxide substrate, a thin buffer layer of a superconducting material thereon; and, a layer of a rare earth-barium-copper oxide superconducting film thereon the thin layer of yttrium-barium-copper oxide, the rare earth... | 09/13/2005 |
| 6902600 | Biaxially textured articles formed by powder metallurgy A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisti... | 06/07/2005 |
| 6890369 | Biaxially textured articles formed by powder metallurgy A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisti... | 05/10/2005 |
| 6846344 | Biaxially textured articles formed by powder metallurgy A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisti... | 01/25/2005 |
| 6845255 | Superconducting tapes A composite superconducting tape which includes at least one constituent superconducting tape that may be a multiplicity of stacked and bonded tapes including a pair of exposed opposite major faces, and at least one outer layer of metal tape overlying and bonded to ... | 01/18/2005 |
| 6842634 | Integrated tape Production of a superconducting tape of the powder-in-tube type comprising multiple filaments (1) of superconducting material embedded in a silver matrix (2) having the properties of a filament thickness of less than about 40 μm and an overall tape th... | 01/11/2005 |
| 6819948 | Superconducting tapes A composite superconducting tape including a plurality of stacked and diffusion-bonded superconducting. Each of the superconducting tapes includes a filament of superconducting material in a silver-silver alloy cladding. Each of the superconducting tapes are an elon... | 11/16/2004 |
| 6800591 | Buffer layers on metal alloy substrates for superconducting tapes An article including a substrate, at least one intermediate layer upon the surface of the substrate, a layer of an oriented cubic oxide material having a rock-salt-like structure upon the at least one intermediate layer, and a layer of a SrRuO3 buffer mat... | 10/05/2004 |
| 6743531 | Oxide superconducting conductor and its production method The object of the present invention is to provide an oxide superconducting conductor having superior strength and superconductor characteristics, and its production method. In order to achieve the above object, the present invention provides an oxide supercon... | 06/01/2004 |
| 6740624 | Spraying method to form a thick coating and products obtained A method and an apparatus for spraying materials onto a substrate to produce a coating thereon is described which allows very thick layers of complex metal oxides to be produced. The apparatus and method are particularly suitable for producing superconducting coatin... | 05/25/2004 |
| 6730410 | Surface control alloy substrates and methods of manufacture therefor Methods and articles for controlling the surface of an alloy substrate for deposition of an epitaxial layer. The invention includes the use of an intermediate layer to stabilize the substrate surface against oxidation for subsequent deposition of an epitaxial layer.... | 05/04/2004 |
| 6725071 | Fully transposed high tc composite superconductor, method for producing the same and its use A fully transposed composite superconductor can be especially used for AD devices and contains subconductors composed according to the Roebel bar principle and containing TC superconducting material. Superconductors are provided, that can be laterally ben... | 04/20/2004 |
| 6716795 | Buffer architecture for biaxially textured structures and method of fabricating same The invention relates to an article with an improved buffer layer architecture comprising a substrate having a metal surface, and an epitaxial buffer layer on the surface of the substrate. The epitaxial buffer layer comprises at least one of the group consisting of ... | 04/06/2004 |
| 6649280 | Cryogen protected superconducting ceramic tape A high performance superconducting ceramic article for use in a liquid cryogen bath is provided. It includes a superconducting ceramic tape having at least one surface vulnerable to cryogenic infiltration is sealed on each vulnerable surface to a non-poro... | 11/18/2003 |
| 6632539 | Polycrystalline thin film and method for preparing thereof, and superconducting oxide and method for preparation thereof The polycrystalline thin film is made of a composite oxide of a cubic crystal system which has a pyrochlore type crystalline structure of a composition represented as either AZrO or AHfO (A in the formula represents a rare earth element selected from amon... | 10/14/2003 |
| 6617283 | Method of depositing an electrically conductive oxide buffer layer on a textured substrate and articles formed therefrom An article with an improved buffer layer architecture includes a substrate having a textured metal surface, and an electrically conductive lanthanum metal oxide epitaxial buffer layer on the surface of the substrate. The article can also include an epitax... | 09/09/2003 |
| 6613463 | Superconducting laminated oxide substrate and superconducting integrated circuit A superconducting laminated oxide substrate, which comprises a laminate a layer of a superconducting oxide crystal substrate made of a superconducting oxide single crystal or a superconducting oxide polycrystal and a layer of a reinforcing crystal substra... | 09/02/2003 |
| 6610428 | Controlled conversion of metal oxyfluorides into superconducting oxides An oxide superconductor article is provided having an oxide superconductor film having a thickness of greater than 0.5 microns disposed on a substrate, said article having a transport critical current density (Jc) of greater than or equal to ab... | 08/26/2003 |
| 6586370 | Metal boride based superconducting composite The invention provides a superconductor comprising particles made of a metallic boride superconductive material, and a conductive material. The conductive material is selected to be driven to a superconductive state when in proximity to the superconductiv... | 07/01/2003 |
| 6537689 | Multi-layer superconductor having buffer layer with oriented termination plane The invention relates to multi-layer articles and methods of making such articles. The multi-layer superconductors can have one or more layers with an oriented termination plane. The methods include first conditioning the termination plane of an underlyin... | 03/25/2003 |
| 6508888 | Stabilizer conductor comprising an aluminum based cryogenic stabilizer A superconducting conductor and method for its production. The conductor is formed of least one superconducting core and an aluminum based cryogenic stabilizer which is a high purity Al--Fe--Ni aluminum alloy having a composition, in % by weight: 200 ppmà... | 01/21/2003 |
| 6507746 | Superconducting wire and method of manufacturing the same The present invention provides an oxide superconducting wire including a component provided in the form of a tape and a metal tape. The component in the form of a tape has an oxide superconducting member and a metal coating member formed mainly of silver ... | 01/14/2003 |
| 6442827 | Method of making superconductor strand The invention relates to a powder in tube type method of manufacturing an HTc superconductor multifilament conductor having a matrix of compatible silver alloy and in which, during preparation of the multifilament billet, the number of segments per layer ... | 09/03/2002 |
| 6440904 | High-temperature superconductor arrangement Ceramic high-temperature superconductors (1) which are intended to be used as current limiters in alternating-current lines should have a bypass layer (2) whose electrical resistivity is increased by more than 10 times with respect to that of a pure noble... | 08/27/2002 |