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| Number | Title | Issue Date |
| 7867950 | RF-properties-optimized compositions of (RE)BaCuO thin film superconductors The films of this invention are high temperature superconducting (HTS) thin films specifically optimized for microwave and RF applications. In particular, this invention focuses on compositions with a significant deviation from the 1:2:3 stoichiometry in order to cr... | 01/11/2011 |
| 7112556 | Superconducting ceramics Superconducting ceramics having relatively high critical temperatures are composed of rare earth metals, alkaline earth metals and copper. They have few defects and a limited polycrystalline interfacial area. ... | 09/26/2006 |
| 6740623 | Oxide superconductor and method for producing same An Hg- or Nd-based oxide superconductor comprises Ba as a constituent element and has a content of carbon as an impurity at a level of not greater than 2.0 atomic % whereby the oxide superconductor stably shows high superconducting characteristics without causing de... | 05/25/2004 |
| 6624122 | High critical current superconducting tapes Improvements in critical current capacity for superconducting film structures are disclosed and include the use of a superconducting RE-BCO layer including a mixture of rare earth metals, e.g., yttrium and europium, where the ratio of yttrium to europium ... | 09/23/2003 |
| 6592782 | Materials and methods for the separation of oxygen from air Metal oxides particularly useful for the manufacture of catalytic membranes for gas-phase oxygen separation processes having the formula: Ax A'x' A"2-(x+x') By Fey' B"2-(y+y') O5+z wh... | 07/15/2003 |
| 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 |
| 6451450 | Method of depositing a protective layer over a biaxially textured alloy substrate and composition therefrom A laminate article consists of a substrate and a biaxially textured protective layer over the substrate. The substrate can be biaxially textured and also have reduced magnetism over the magnetism of Ni. The substrate can be selected from the group consist... | 09/17/2002 |
| 6441394 | Intrinsic Josephson superconducting tunnel junction device Using an oxide superconductor that does not require cryogenic temperatures, a superconducting tunnel junction device is provided which can accurately control the magnitudes of critical current and step voltage necessary for electronics applications and wh... | 08/27/2002 |
| 6281171 | MG-doped high-temperature superconductor having the superconducting anisotropy and method for producing the superconductor A Mg-doped high-temperature superconductor having low superconducting anisotropy includes a two-dimensional layered structure constituted by a charge reservoir layer and a superconducting layer, wherein some or all atoms constituting the charge reservoir ... | 08/28/2001 |
| 5958840 | Oxide superconductor containing Ag and having substantially same crystal orientation, and method for manufacturing the same An oxide superconductor which has high mechanical strength and exhibits favorable magnetic properties and high resistance to environment. Further, a method of manufacturing this oxide superconductor, namely, a method of manufacturing a RE--Ba--Cu--O oxide... | 09/28/1999 |
| 5952268 | Superconductor material and a method of preparing superconductor materials The present invention relates to method of preparing a superconductor material consisting in preparing a precursor constituted by a powder of Ba2 Can-1 Cun+1 Ox or Ba2 Can-1 Cun+1 ... | 09/14/1999 |
| 5906964 | High temperature superconducting tape and method of manufacture Highly oriented HgBa2 Ca2 Cu3 O8+δ on Ni-tapes with a buffer layer of Cr/Ag or Cr/(Ag--Pd) have been described with a high transition temperature are described along with, one and two step methods of manufactu... | 05/25/1999 |
| 5849667 | Superconductor and method of producing same A high critical temperature and high critical current density superconductor is disclosed which contains a metal oxide expressed by the following formula (I): (R11-x, Bax)Ba2 Cu3 Od (I) wh... | 12/15/1998 |
| 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 |
| 5716907 | Rock-salt/infinite layer chlorine-containing oxide superconductor and manufacturing method of the same The present invention is an oxide superconductor containing alkaline earth metal M (where M is at least one element of Ba, Sr, and Ca) and having a crystalline structure in which a portion based on two rock-salt structures including the alkaline earth met... | 02/10/1998 |
| 5620945 | Process for forming a superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 04/15/1997 |
| 5614471 | Superconductive material A superconductive material is in composition expressed as Y0.33 Ba0.67)a Cub (OF)c. The usual a, b and c are so selected as to satisfy a relation expression ax (mix valence of A)+bx (mix valence of B)... | 03/25/1997 |
| 5599775 | (Hg Cu)Bg2 Ca2 Cu3 Oy oxide superconductor and method of preparing the same Provided is an Hg--Ba--Ca--Cu--O oxide superconductor having a high superconductivity transition temperature Tc and a method which can prepare the same in excellent reproducibility. This oxide superconductor consists essentially of Hg, Ba, Ca, Cu and O, a... | 02/04/1997 |
| 5589441 | Superconductive fiberform ceramic composite Processes are provided for forming a superconductive composite, comprising a superconductive metal oxide and a ceramic. The composite may be formed in any desired shape. Liquid nitrogen can be held around the superconductor longer and delivered in a more ... | 12/31/1996 |
| 5583093 | Metal oxide material with Ln, Sr, Cu, O, optionally Ca, and at least one of Fe, Co, Ti, V, Ge, Mo, and W Provided is a metal oxide material represented by the composition formula of Lna Srb Cu3-x Mx Oc, where 2.7ࣘa+bࣘ3.3; 0.8 ࣘaࣘ1.2; 6ࣘcࣘ9; and 0.05 ࣘxࣘ0.7, Ln is at least one element sele... | 12/10/1996 |
| 5578554 | Metal oxide material and method of manufacturing the same A metal oxide material comprises components, the composition of which is expressed by the following composition formula (I): Lna Cab Src Bad Cu2+e-h Mh O6+f Cg(I) where a+b... | 11/26/1996 |
| 5559084 | Superconducting 2-4-7 oxides Disclosed are a composition and a method of preparing a composition of the formula R2 Q4 Cu7 Ox, wherein R is a rare-earth ion or a mixture of rare earth ions, and Q is Ba, or Ba combined with either Sr or Ca or... | 09/24/1996 |
| 5556831 | Method of treating a part made of a superconductive ceramic of the (Ln).sub. Ba2 Cu3 O7-δ type A method of treating a part made of a superconductive ceramic of the (Ln)1 Ba2 Cu3 O7-δ type, where Ln is chosen from the rare earth elements other than cerium and terbium, the method being designed to reduce t... | 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 |
| 5536705 | Superconductor with 1212 phase of Hg,Pb,Sr,Ba,Ca,Y,Cu oxide A family of mercury-containing Sr-(Ca.cndot.Y)-Cu-O superconducting materials having a zero-resistance temperature, Tc(zero), greater than 90 K so that they can be cooled to and maintain the desired superconducting characteristics using relativ... | 07/16/1996 |
| 5534490 | (Hg,Cu)Ba2 Ca2 Cu3 Oy oxide superconductor and method of preparing the same Provided is an Hg-Ba-Ca-Cu-O oxide superconductor having a high superconductivity transition temperature Tc and a method which can prepare the same in excellent reproducibility. This oxide superconductor consists essentially of Hg, Ba, Ca, Cu and O, and i... | 07/09/1996 |
| 5529981 | Process and apparatus for preparing biaxially textured materials using anisotropy in the paramagnetic susceptibility The present invention discloses a process and apparatus for forming textures in materials. It uses so called "normal aligners" having an anisotropy in the paramagnetic susceptibility within a magnetic field having compositions REBa2 Cu3 | 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 |
| 5512542 | Metallic oxide with boron and process for manufacturing the same A novel metallic oxide of a Ln-Ca-Sr-Ba-Cu-B-O type and a process for manufacturing such a metallic oxide. The above metallic oxide has a composition expressed by the following formula (I): (Ln1-a Caa)(Sr2-b Bab)(Cu | 04/30/1996 |
| 5512538 | Metal oxide material with Ln, Sr, Cu, Re, O, and optionally Ca Provided is a metal oxide material represented by the composition formula of Lna Srb Cu3-x Mx Oc, where 2.7ࣘa+bࣘ3.3; 0.8ࣘaࣘ1.2; 6ࣘcࣘ9; and 0.05 ࣘxࣘ0.7, Ln is at least one element selec... | 04/30/1996 |
| 5508253 | REBa2 Cu3 O7-y type oxide superconductive material having high critical current density and process for preparation thereof The present invention is characterized in that oxides of Y, Ba and Cu having a superconductive substance-forming composition are melted, the melt is rapidly cooled and solidified, the obtained sheet is heated at a temperature of 1000° to 1350° C. to pro... | 04/16/1996 |
| 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 |
| 5468724 | High temperature oxide superconductor Disclosed herein are high-temperature oxide superconductors of RBa2 Cu4 O8 type, with Ba partly replaced by Sr or Ca, or with R and Ba partly replaced by Ca and Sr, respectively, as represented by the chemical composition ... | 11/21/1995 |
| 5462917 | Process of preparing superconductive oxide complexes containing L, Ba, Cu and O and method of using the same A superconductor material having a current density, J, of from about 30,000 to about 85,000 amps/cm2 at zero magnetic field and 77° K is disclosed. The 123 superconductor, of the formula L1 Ba2 Cu3 O6 | 10/31/1995 |
| 5445766 | Superconductive conjugate photoconductive substances of the Bi-SrCa(LaY)-Cu-O system, a method for producing the same and superconductive optoelectronic devices using the same The disclosed substance has a composition of a general chemical formula of Bi2 -(Sr2 Ca1)1-x (La2 Y1)x -Cuy -Oz, where 0.4ࣘxࣘ1, y=2 and z=9-10.5, wherein said sub... | 08/29/1995 |
| 5444425 | Flux-trapped superconducting magnets and method of manufacture A flux-trapped superconducting magnet which is formed of high transition temperature superconducting mixture doped with a magnetic material having a Curie temperature below the transition temperature of the superconducting mixture.... | 08/22/1995 |
| 5432143 | Method of producing an RBa2 Cu3 Oy microcrystalline structure in which R denotes a lanthanide A method of producing a microcrystalline RBa2 Cu3 Oy structure where R denotes a lanthanide chosen from Y, La, Nd, Sm, Eu, Gd, Tb, Ho, Er, Tm, Yb and Lu and where y has a value between 6.9 and 7 starts with a powder of com... | 07/11/1995 |
| 5430008 | Method and composition for improving flux pinning and critical current in superconductors Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducti... | 07/04/1995 |
| 5430011 | Crystal compensated superconducting thin film formed of oxide superconductor material A superconducting thin film formed on a substrate, comprising at least one oxide superconductor layer formed on the principal surface of said substrate and at least one oxide layer formed of an oxide which compensates for crystalline incompleteness at the... | 07/04/1995 |
| 5422336 | Superconducting FET with Pr-Ba-Cu-O channel A superconducting transistor with superior withstand voltage having source region and a drain region formed of oxide superconductors 3, a PrBa2 Cu3 O7-x layer 2 or an ScBa2 Cu3 O7-x layer 2 ... | 06/06/1995 |
