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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 |
| 6869915 | Chemical pinning centers for high temperature superconductors An oxide superconductor includes a textured superconducting material including an array of defects, where the defects are a compound of two elements foreign to the superconductor, plus other elements native to the superconductor. The two foreign elements include one... | 03/22/2005 |
| 6784138 | Critical doping in high-Tc superconductors for maximal flux pinning and critical currents A method for maximising critical current density (Jc) of high temperature superconducting cuprate materials (HTSC) which comprises controlling the doping state or hole concentration of the materials to be higher than the doping state or hole concentration... | 08/31/2004 |
| 6767866 | Selective reduction type high temperature superconductor and methods of making the same Proposed are a selective reduction type high temperature superconductor and methods of making the same, the superconductor having a pair of charge supply layers each formed of a Cu1-xMx surface (1, 1), a first superconducting layer formed of a 5-coordination ... | 07/27/2004 |
| 6711422 | Thin film superconducting synchronous motor An superconducting electric motor is operated as a traditional squirrel-cage induction motor until the rotor reaches synchronous speed, at which point a current is trapped in a superconducting film by heating a portion of the superconducting film above its critical ... | 03/23/2004 |
| 6569360 | Method of preparing metal matrix composite with textured compound The present invention provides a generic method of preparing a metal matrix composite with a textured compound. A "roller-skate" structure starting powder with a mixture of plate-like particles and smaller particles provides better flow compatibility, hig... | 05/27/2003 |
| 6444620 | High temperature superconductor having low superconducting anisotropy and method for producing the superconductor A high-temperature superconductor having low superconducting anisotropy includes a two-dimensional layered structure of crystal unit cells each consisting of a pair of superconducting layer and charge reservoir layer. At least a portion of the atoms of th... | 09/03/2002 |
| 6300284 | Copper-based high-temperature superconducting material A copper-based high-temperature superconducting material includes a carrier supply layer overdoped with carriers; and a superconducting layer comprised of at least three CuO2 layers that are selectively doped with the carriers; whereby a high s... | 10/09/2001 |
| 6126855 | Reaction products of lyotropic liquid crystal salt complexes The invention provides superior reaction products of copper, especially ultra-clean copper and polymeric chemical complexes. The polymers are unusual in that they provide polymeric systems of extensive conjugated double bond networks well suited for elect... | 10/03/2000 |
| 5962373 | Method for producing mixed metal oxide compounds A precursor is made from a plurality of materials having different vapor pressures. The precursor and a source material are placed in a closed heat treatment furnace. The source material is materials which are the same as some of the materials contained i... | 10/05/1999 |
| 5939361 | Method of fabricating Tl or Hg-containing oxide superconductor film A substrate is set in a reaction chamber, to heat the substrate to a predetermined temperature. Tl, Ba, Ca, Cu and O are supplied to the substrate by a Tl evaporation source and a target, to cause a TlBaCaCuO film to grow on the substrate. The TlBaCaCuO f... | 08/17/1999 |
| 5919735 | High temperature superconductor A high temperature superconductor which has a layered crystal structure, which has a superconducting transition temperature, Tc, of 110 K or more, and which has a composition expressed by: Cu1-z M'z Ae2 Cax-1 Cu... | 07/06/1999 |
| 5916697 | Multilayer material and device comprising this material A material formed as a film comprised of monomolecular layers (2,3,4,5) stacked on a substrate (1), wherein said film includes at least one first set (R) of layers which form an electric charge reservoir, and a second set (S) of layers which form a conduc... | 06/29/1999 |
| 5883050 | Hg-based superconducting cuprate films A Hg-based superconducting cuprate film on a substrate is disclosed, which comprises a compound having the formula Hg1-x Mx Ba2 Can-1 Cun Oy, M is a metal cation, x ranges from 0 to 1, n is... | 03/16/1999 |
| 5874383 | Tibibacacuo based superconductors A high temperature superconductor system having the single phase composition TlBiBaCaCuO. The system exhibits a Tc of at least 116 K.... | 02/23/1999 |
| 5858926 | Process for preparing mercury-barium-calcium-copper-oxide-based superconductor materials The present invention is directed to a process for preparing a HgBaCaCuO superconductor by annealing a precursor mixture comprising a lower member of the homologous HgBaCaCuO superconductor series, a source of calcium and a source of copper. The precursor... | 01/12/1999 |
| 5851955 | Efficient growth of HTS films with volatile elements A system for applying a volatile element-HTS layer, such as Tl-HTS, to a substrate in a multiple zone furnace, said method includes heating at higher temperature, in one zone of the furnace, a substrate and adjacent first source of Tl-HTS material, to sub... | 12/22/1998 |
| 5851954 | Superconducting oxide-based composite material A composite based on a superconducting oxide having a high critical temperature, characterized by the fact that it is constituted by glass and said oxide, the glass being such that its vitreous transition temperature is not greater than 750K, the volume f... | 12/22/1998 |
| 5849672 | Oxide superconducting material, process for preparing the same and applications thereof Novel superconducting oxide material containing compound oxide having a composition represented by the formula: (Tl1-x Bix)1-p p !q Sry Caz Cuv Ow in wh... | 12/15/1998 |
| 5807809 | Method of fabricating thin film superconducting materials Improved superconducting thin films are provided having very high Tc (zero) and Jc values, on the order of greater than or equal to 120K and 105 A/cm2 or greater, respectively. The films of the invention are ada... | 09/15/1998 |
| 5776861 | High temperature mercury-containing superconductors and method of making the same Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition: (Hg1-x Tlx)2 (Ba1-a Sra)2 (Ca1-b Yb | 07/07/1998 |
| 5646094 | Rare earth substituted thallium-based superconductors The present invention comprises novel superconducting materials exhibiting superconductivity at temperatures exceeding 90 K. with chemical formula Tla Pbb Cac Srd Re Cuf Og where R=Y ... | 07/08/1997 |
| 5618776 | Yttrium or rare-earth substituted metal oxide materials The invention provides certain novel metal oxide materials which exhibit superconductivity at elevated temperatures and/or which are useful in electrode, electrolyte, cell and sensor applications, or as electrochemical catalysts. The metal oxide materials... | 04/08/1997 |
| 5597781 | R-Tl-SR-CA-CU-O superconductors and processes for making same A high temperature superconductor system is provided having the following formula: M-A-B-C-D-E, wherein, M is a metallic element. A is an element in Group 3A, B is an element in Group 2A, C is another element in Group 2A, D is an element in Group 1B, and ... | 01/28/1997 |
| 5556830 | Tl-doped HgBaCaCu superconductors Improved superconducting oxides are provided having the general formula (Hg1-x Tlx)Ba2 Can-1 Cun O2n+2+ where x is from about 0.05-0.5 and n is 1, 2, 3 or 4, and is an oxygen... | 09/17/1996 |
| 5550105 | Superconducting compositions Superconducting compositions characterized by the formula (Pba A1-a)(Srb Ba1-b)2 (Cac B1-c)Cu2 O7 wherein at least half the A atoms are Hg and the remainder, if ... | 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 |
| 5529979 | Oxide superconducting material and process for preparing the same Superconducting oxide material containing compound represented by the formula: (Tl.sub.(l-p-q) Bip Pbq)y γz (.sub.(l-r) ଲr)s Cuv Ow in which each of ""... | 06/25/1996 |
| 5523284 | Process for preparing a bulk textured superconductive material In accordance this invention, there is provided a process for making a bulk superconductive material. In the first step of this process, a diffusion couple is formed from superconductor oxide and impurity oxide. Thereafter, the diffusion couple is heated ... | 06/04/1996 |
| 5521148 | Oxide superconducting material, process for preparing the same and applications thereof Novel superconducting oxide material containing compound oxide having a composition represented by the formula: [(Tl1-x Bix)1-p p ]q Sry Caz Cuv Ow in whi... | 05/28/1996 |
| 5516752 | Thallim, bismuth and lead containing oxide superconductor Superconducting oxide material containing compound represented by the formula: (Tl.sub.(1-p-q) Bip Pbq)y γz (.sub.(1-r) ଲr)s Cuv Ow in which each of ""... | 05/14/1996 |
| 5510323 | Tl1 (Ba1-x Sr8)2 Ca2 Cu3 Oy oxide superconductor and method of producing the same An oxide superconductor comprising a perovskite type oxide compound of thallium, strontium, calcium and copper or thallium, strontium, balium, calcium and copper is produced by absorbing thallium in a gaseous phase into a mixture of strontium oxide or str... | 04/23/1996 |
| 5502029 | Laminated super conductor oxide with strontium, calcium, copper and at least one of thallium, lead, and bismuth Superconductors using oxide superconducting materials having pinning centers inside crystal grains are enhanced in transmissible critical current density and allowed to have a high critical current density even in the magnetic field. A superconductor is p... | 03/26/1996 |
| 5498594 | (Hg or Pb)-Pr-Tl-Sr-Cu-O based superconductors A high temperature superconducting system comprising M--R--Tl--Sr--Cu--O wherein: M is at least one compound selected from the group consisting of Hg, Pb, K, and Al; and R represents rare earth metals. In one embodiment, a composition forms a 93K supercon... | 03/12/1996 |
| 5492885 | Mercury-thallium-barium-calcium-strontium-copper-oxide 1223 superconductor and method of making same Mercury-thallium based superconductors with the formula Hg1-x Tlx Ba2 (Ca1-y Sry)2 Cu3 O8+δ ; change "their preparing method, in particular characterized in that it" to an... | 02/20/1996 |
| 5489573 | Thallium-calcium-barium-copper-oxide superconductor with silver and method A method is disclosed for forming polycrystalline thallium system superconductors having high current carrying capacity and high magnetic field behavior. A precursor deposit is formed comprised of silver, in an amount of about 1 to 20 mole percent of tota... | 02/06/1996 |
| 5482917 | T1-M-Cu-O-F superconductors A superconducting composition having the nominal formula TlM2 CuO5-x Fx wherein M is Ba and x is from about 0.10 to about 0.65, or M is Sr and x is from about 0.35 to about 0.75 is disclosed.... | 01/09/1996 |
| 5476836 | Reactor vessel for manufacture of superconducting films Methods and reactors are described for the production of high temperature superconductor films on a variety of substrates, particularly those films which include volatile components during their manufacture. The reactors are particularly useful for produc... | 12/19/1995 |
| 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 |
| 5453494 | Metal complex source reagents for MOCVD Metal organic chemical vapor deposition (MOCVD) source reagents useful for formation of metal-containing films, such as thin film copper oxide high temperature superconductor (HTSC) materials. The source reagents have the formula MAyX wherein: M is a meta... | 09/26/1995 |
