Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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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 |
| 7247340 | Method of making a superconducting conductor A method of forming a superconducting conductor is disclosed. The method provides translating a substrate tape through a deposition chamber and along a helical path, where the helical path has multiple windings of the substrate tape and each winding of the substrate... | 07/24/2007 |
| 6746991 | Manufacturing process for an electrically insulating and mechanically structuring sheath on an electric conductor Manufacturing process of an electrically insulating and mechanically structuring sheath on an electric conductor which applies notably to the manufacture of superconducting magnets, wherein a ceramic precursor (4) in gel form is formed, then a coating of the ... | 06/08/2004 |
| 6604273 | Method of manufacturing an oxide superconducting wire A manufacturing method for a superconducting wire which is a fine line made of an oxide superconductor, including the steps of forming the fine line by drawing a metal pipe filled with materials for the oxide superconductor, causing the materials to react... | 08/12/2003 |
| 6574852 | Method of making high-Tc superconducting ceramic oxide tape High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods for making such high-Tc superconducting products. Completely sealed high-Tc superconducting ceramic oxide provides are made by a macroscopic process including the steps... | 06/10/2003 |
| 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 |
| 6481091 | Method of preparing bismuth oxide superconducting wire The present invention provides a method to prepare a (Bi,Pb)SrCaCuO-2223 superconducting wire with improved critical current density at reduced cost. In general, the basic method according to the present invention comprises the steps of: (a) preparing a s... | 11/19/2002 |
| 6339194 | Supported superconductor A supported superconductor device which is useful as a superconducting current lead or as a high voltage current regulator. The device is formed of a tubular support, with a layer of ceramic, glassy or glass ceramic material adhered to the inner wall of t... | 01/15/2002 |
| 6311384 | Method of manufacturing oxide superconducting wire An oxide superconducting wire is obtained by performing plastic working and heat treatment of a metal pipe which is filled up with raw material powder of an oxide superconductor. In the plastic working step, the metal pipe is subjected to flat working so ... | 11/06/2001 |
| 6311386 | Processing of (Bi,Pb)SCCO superconductor in wires and tapes A novel process of the production and processing of high quality, high Tc (Bi,Pb)SCCO superconductors starts with fabrication of a precursor article including selected intermediate phases with desired chemical and structural properties. The pre... | 11/06/2001 |
| 6311385 | High temperature oxide superconducting wire and method of manufacturing thereof A high temperature oxide superconducting wire is provided which is capable of preventing metal located on the outer periphery of the superconducting wire from diffusing into a superconductor to achieve restriction of reduction in the critical current dens... | 11/06/2001 |
| 6265354 | Method of preparing bismuth oxide superconductor The present invention provides a method to prepare a (Bi,Pb)SrCaCuO-2223 superconductor, in particular a (Bi,Pb)SrCaCuO-2223 superconducting wire with improved critical current density at reduced cost. In the method of preparing a (Bi,Pb)SrCaCuO-2223 supe... | 07/24/2001 |
| 6235685 | Production method of joints of superconducting oxide and normal conductor A rod 1 made of superconducting oxide is soaked in a molten normal conductor 2 to join the rod 1 and the normal conductor 2, whereby a superconducting oxide current lead is prepared. As a result, a contact resistance at the interface between the supercond... | 05/22/2001 |
| 6194352 | Multifilament composite BSCCO oxide superconductor A method for preparing an oxide superconductor cable includes transposing a plurality of oxide superconductor strands along a longitudinal axis so as to form a cable and exposing the cable to a two step heat treatment after cabling of the oxide strands, t... | 02/27/2001 |
| 6191074 | 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... | 02/20/2001 |
| 6170147 | Superconducting wire and method of manufacturing the same A starting material which is converted to a continuous body of an oxide superconductor by a heat treatment is filled in a tubular Ag sheath member. The diameter of the filled member is reduced by extrusion to form a wire. The wire is subjected to a heat t... | 01/09/2001 |
| 5932524 | Method of manufacturing superconducting ceramics A high Tc superconducting ceramic material is produced by a method in which a mixture of chemicals in suitable amounts is compacted into a desired form. The compacted mixture is then fired and, at the same time, an electric current is caused to pass throu... | 08/03/1999 |
| 5898021 | Method of manufacturing an oxide ceramic superconductor having a high core density A superconductive composite member, which has a core composed of an oxide ceramic material which is surrounded by an envelope, has an increased core density in order to achieve a higher critical current density. The increased core density is obtained duri... | 04/27/1999 |
| 5830828 | Process for fabricating continuous lengths of superconductor A process for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substra... | 11/03/1998 |
| 5827798 | Method for production of superconducting polycrystalline wire rod A method for the production of a superconducting polycrystalline wire rod having all the crystal (a, b, c) axes thereof aligned is disclosed, which consists of a step of arraying a plurality of superconducting whiskers of a composition of Bi2 S... | 10/27/1998 |
| 5814122 | Method of making hollow high temperature ceramic superconducting fibers A hollow high temperature ceramic superconducting fiber (10, 100), a process for making the hollow fibers and an apparatus for carrying out the process are provided. The apparatus functions to simultaneously draw a molten superconducting material (16) and... | 09/29/1998 |
| 5811376 | Method for making superconducting fibers A process for making a superconducting fiber or wire (10) is provided. The superconducting fiber or wire (10) has a superconducting core (12) and a glass cladding outer layer (14). The process comprises melting a superconducting composition (16) and a gla... | 09/22/1998 |
| 5802708 | Hydrostatic extrusion of Cu-Ag melt spun ribbon The present invention provides a method of producing high-strength and high-conductance copper and silver materials comprising the steps of combining a predetermined ratio of the copper with the silver to produce a composite material, and melt spinning th... | 09/08/1998 |
| 5786305 | Process for manufacturing a compound oxide-type superconducting wire A process for manufacturing a wire made of oxide which is applicable for manufacturing a superconducting coil or the like. The process includes steps comprising preparing a mass of oxide having superconductivity from powder material, covering the mass of ... | 07/28/1998 |
| 5744427 | Thallium oxide superconductor and method of preparing the same In a method of preparing a thallium oxide superconductor having components of Tl-Bi-Ca-Sr-Cu-O or Tl-Bi-Pb-Ca-Sr-Cu-O from raw material powder, the raw material powder is subjected to first heat treatment, then exposed to a compressive load, and thereafte... | 04/28/1998 |
| 5731271 | Method for preparing an oxide superconducting tape A method for growing a superconductive film, comprising: (a) helically winding a tape substrate around the outer periphery of a cylindrical or columnar holder and (b) growing a superconductive film on the surface of the tape substrate by plasma flash evaporati... | 03/24/1998 |
| 5683969 | Strongly-linked oxide superconductor and a method of its manufacture A strongly-linked polycrystalline oxide superconductor article includes an oxide superconductor selected from the group consisting 124-type and 247-type oxide superconductors having fine, highly aligned oxide superconductor grains less than 50 μm along a... | 11/04/1997 |
| 5639714 | Method of producing oxide superconductor A method of producing a Bi-Pb-Sr-Ca-Cu oxide superconductor by thermally treating raw material comprises steps of performing first plastic deformation on the raw material, performing first heat treatment on the material being subjected to the first plasti... | 06/17/1997 |
| 5627141 | Method of producing ceramics system superconducting wire In order to obtain a ceramics system superconducting wire, a bulk type ceramics system superconductor or its precursor previously treated to have orientativity in its crystal structure is reduced in diameter in a state charged in a metallic pipe, thereby ... | 05/06/1997 |
| 5550102 | Superconductor and method of manufacturing the same A method of manufacturing a superconductor is carried out by first preparing a material composed of Y1 Ba2 Cu3 O7. This material is heated/molten in a platinum crucible. A melt thus obtained is drawn out from a ... | 08/27/1996 |
| 5545610 | Oxide-based superconductor, a process for preparing the same and a wire material of comprising the same An oxide-based superconductor ccmprising Tl, Pb, Sr, Ca and Cu or Tl, Pb, Ba, Sr, Ca and Cu, prepared by subjecting a low melting point composition comprising the superconductor-constituting elements and a solid composition comprising the superconductor-c... | 08/13/1996 |
| 5545613 | Preparation of superconducting oxides and oxide-metal composites A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate... | 08/13/1996 |
| 5525585 | Process for preparing YBa2 Cu3 O7-x superconductors The present invention provides a process for the preparation of YBa2 Cu3 O7-x superconductor which comprises surrounding a sintered material in which the molar ratio of Y:Ba:Cu is 2:1:1 with liquid-forming powder and subje... | 06/11/1996 |
| 5508256 | Oxide high-temperature superconducting material, method of preparing same and superconducting wires A method of producing a high-temperature oxide superconducting material, which comprises the steps of (a) preparing a material corresponding to an oxide superconductor of the perovskite type structure consisting essentially of a first member selected from... | 04/16/1996 |
| 5462922 | Superconductive material, a superconductive body, and a method of forming such a superconductive material or body A superconductive material has the formula (Tl1-X1-x2 PbX1 BiX2) (Sr1-X3 BaX3)ଲ Caγ Cuδ O.zeta. where 0ࣘX1ࣘ0.8 0ࣘX2ࣘ0.5 0ࣘX3ࣘ1.0... | 10/31/1995 |
| 5403818 | Ceramic superconductor and method of preparing the same A Bi--Sr--Ca--Cu--O ceramic superconductor contains 0112 phases which are finely dispersed in a 2212-phase matrix with its c-axis oriented perpendicular to a growth direction. A method of preparing a Bi--Sr--Ca--Cu--O ceramic superconductor comprises the ... | 04/04/1995 |
| 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 |
| 5374612 | "Oxide superconductor wire having sintered silver powder layers" A superconductor wire comprising an inner core and an outer ring covering the core, wherein one of the inner core and the outer ring comprises a sintered silver powder and the other of the inner core and the outer ring on the core comprises a sintered oxi... | 12/20/1994 |
| 5354921 | Single crystalline fibrous superconductive composition and process for preparing the same There is disclosed a single crystalline fibrous superconductive composition represented by the atomic compositional formula: Bi2 Sr2 CaCu2 MX OY wherein 0 | 10/11/1994 |
| 5346883 | Method of manufacturing superconductive products The present invention provides a method of manufacturing superconductive products comprising heating a superconductive matter or incorporation including its precursor to a temperature higher than its or its precursor's melting point to melt it or its prec... | 09/13/1994 |
