Patents by Inventor Martin W. Rupich
Martin W. Rupich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7622424Abstract: A method for producing a thick film includes disposing a precursor solution onto a substrate to form a precursor film. The precursor solution contains precursor components to a rare-earth/alkaline-earth-metal/transition-metal oxide including a salt of a rare earth element, a salt of an alkaline earth metal, and a salt of a transition metal in one or more solvents, wherein at least one of the salts is a fluoride-containing salt, and wherein the ratio of the transition metal to the alkaline earth metal is greater than 1.5. The precursor solution is treated to form a rare earth-alkaline earth-metal transition metal oxide superconductor film having a thickness greater than 0.8 ?m. precursor solution.Type: GrantFiled: September 30, 2005Date of Patent: November 24, 2009Assignee: American Superconductor CorporationInventors: Xiaoping Li, Thomas Kodenkandath, Edward J. Siegal, Wei Zhang, Martin W. Rupich, Yibing Huang
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Publication number: 20090233800Abstract: Under one aspect, a method of making a superconductor wire includes providing an oxide superconductor layer overlaying a substrate; forming a substantially continuous barrier layer over the oxide superconductor layer, the barrier layer including metal; depositing a layer of metal particles over the barrier layer, said depositing including applying a liquid including metal particles over the barrier layer; and sintering the layer of metal particles to form a substantially continuous metal layer over the barrier layer. In one or more embodiments, the oxide superconductor layer is oxygen-deficient, and the method may include oxidizing the oxygen-deficient oxide superconductor layer. At least a portion of the sintering and the oxidizing may occur simultaneously, for example by performing them at an oxygen partial pressure and a temperature sufficient to both sinter the metal particles and to oxidize the oxygen-deficient oxide superconductor layer.Type: ApplicationFiled: March 23, 2007Publication date: September 17, 2009Applicant: American Superconductor CorporationInventors: Yibing Huang, Thomas Kodenkandath, Joseph Lynch, Martin W. Rupich, Wei Zhang
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Patent number: 7582328Abstract: An oxide superconductor article having an oxide superconductor layer of a predetermined pattern is prepared by continuously advancing a wire having a textured surface into a deposition zone, dispensing droplets of a precursor solution to an oxide superconductor from a reservoir and the depositing droplets onto the textured surface of the wire that is introduced into the deposition zone, heating the wire or tape in the reaction zone under conditions to convert the precursor solution into an oxide superconductor; and collecting the wire after heating.Type: GrantFiled: September 29, 2004Date of Patent: September 1, 2009Assignee: American Superconductor CorporationInventors: Martin W. Rupich, Cornelis L. Thieme
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Patent number: 7496390Abstract: An article having low ac loss includes an elongated substrate having a length and a width; and a plurality of filaments comprising an oxide superconductor extending substantially along the length of the elongated substrate and spaced apart from one other filaments across the width of the elongated substrate, wherein at least one filament crosses over at least one other filament such that the at least one filament occupies a first position across the width of the elongated substrate before the crossover and a second position across the width of the elongated substrate after crossover.Type: GrantFiled: September 29, 2004Date of Patent: February 24, 2009Assignee: American Superconductor CorporationInventors: Cornelis Leo Hans Thieme, Martin W. Rupich, John D. Scudiere, Oleg A. Chevtchenko
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Patent number: 7463915Abstract: An elongated article comprising a first layer of oxide superconductor filaments extending substantially along the length of the elongated article and spaced apart from one another across the width of the elongated substrate; a second layer of oxide superconductor filaments extending substantially along the length of the elongated article and spaced apart from one another across the width of the elongated article, wherein the first filament layer is positioned above the second filament layer; and a barrier layer positioned between the first and second filament layers, wherein the filaments of the first and second filament layers are positioned such that at least one filament of the first layer crosses at least one filament of the second layer.Type: GrantFiled: September 29, 2004Date of Patent: December 9, 2008Assignee: American Superconductor CorporationInventors: Cornelis Leo Hans Thieme, Martin W. Rupich
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Publication number: 20080188373Abstract: Superconductor precursor solutions are disclosed. The precursor solutions contain, for example, a salt of a rare earth metal, a salt of an alkaline earth metal and a salt of a transition metal. The precursor solutions can optionally include a Lewis base. The precursor solutions can be processed relatively quickly to provide a relatively thick and good quality intermediate of a rare earth metal-alkaline earth metal-transition metal oxide.Type: ApplicationFiled: February 5, 2008Publication date: August 7, 2008Applicant: American Superconductor CorporationInventors: Martin W. Rupich, Thomas A. Kodenkandath
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Publication number: 20080153709Abstract: Superconductor wires or layers having improved properties and methods for making the same are described. The superconducting layer includes a rare earth element—alkaline earth element—transition metal oxide having an average stacking fault density that is greater than about 0.01 nm?1, wherein two or more rare earth cations form the rare earth element. To form the superconductor layer of the present invention, a layer having a rare earth element—alkaline earth element—transition metal oxide substantially in a first crystal structure can be provided to a substrate where two or more rare earth cations form the rare earth element. The layer can then be heated at a temperature that is greater than 550° C. under oxidizing conditions to form a high-temperature superconducting layer substantially in a second crystal structure.Type: ApplicationFiled: July 23, 2007Publication date: June 26, 2008Inventors: Martin W. Rupich, Wei Zhang, Yibing Huang, Xiaoping Li
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Patent number: 7326434Abstract: Superconductor precursor solutions are disclosed. The precursor solutions contain, for example, a salt of a rare earth metal, a salt of an alkaline earth metal and a salt of a transition metal. The precursor solutions can optionally include a Lewis base. The precursor solutions can be processed relatively quickly to provide a relatively thick and good quality intermediate of a rare earth metal-alkaline earth metal-transition metal oxide.Type: GrantFiled: September 29, 2003Date of Patent: February 5, 2008Assignee: American Superconductor CorporationInventors: Martin W. Rupich, Thomas A. Kodenkandath
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Patent number: 7261776Abstract: A method of making a multilayer article includes depositing a first material on the surface of a metal substrate to form a seed layer of the first material, the first material being deposited under reducing conditions relative to the metal substrate, and then epitaxially depositing a second material on a surface of the seed layer, wherein the second material is deposited from a solution-based precursor under second conditions that are more oxidizing than the reducing conditions used in the deposition of the first material.Type: GrantFiled: March 30, 2004Date of Patent: August 28, 2007Assignee: American Superconductor CorporationInventors: Martin W. Rupich, Urs-Detlev Schoop, Darren Verebelyi, Thomas Kodenkandath, Xiaoping Li
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Patent number: 7258928Abstract: A laminated conductor includes a metallic substrate having a surface, a biaxially textured buffer layer supported by the surface of the metallic substrate, the biaxially textured buffer layer comprising Y2O3 and a dopant for blocking cation diffusion through the Y2O3, and a biaxially textured conductor layer supported by the biaxially textured buffer layer.Type: GrantFiled: July 29, 2005Date of Patent: August 21, 2007Assignees: UT-Battelle, LLC, American SuperconductorInventors: Mariappan Parans Paranthaman, Urs Schoop, Amit Goyal, Cornelis Leo Hans Thieme, Darren T. Verebelyi, Martin W. Rupich
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Patent number: 7018954Abstract: Processes for the fabrication of MgB2 powder and wires are provided. Powders are produced by mechanically alloying magnesium- and boron-containing precursors under controlled conditions to avoid secondary phase and impurity formation. Powders are also prepared by vapor phase reaction of volatile magnesium- and boron-containing precursors. Wires, tapes, films and coatings are provided.Type: GrantFiled: March 8, 2002Date of Patent: March 28, 2006Assignee: American Superconductor CorporationInventors: Cornelis L. Thieme, Martin W. Rupich, Alexander Otto, Gilbert N. Riley, Jr.
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Patent number: 6974501Abstract: The invention relates to multi-layer articles and methods of making such articles. The methods include first conditioning the surface of an underlying layer, such as a buffer layer or a superconductor layer, then disposing a layer of material on the conditioned surface. The conditioned surface can be a high quality surface. Superconductor articles formed by these methods can exhibit relatively high critical current densities.Type: GrantFiled: July 14, 2000Date of Patent: December 13, 2005Assignee: American Superconductor CorporationInventors: Wei Zhang, Martin W. Rupich, Suresh Annavarapu, Leslie G. Fritzemeier, Edward J. Siegal, Valery Prunier, Qi Li
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Patent number: 6893732Abstract: The invention relates to superconductor articles, and compositions and methods for making superconductor articles. The methods can include using a precursor solution having a relatively small concentration of total free acid. The articles can include more than one layer of superconductor material in which at least one layer of superconductor material can be formed by a solution process, such as a solution process involving the use of metalorganic precursors.Type: GrantFiled: July 14, 2000Date of Patent: May 17, 2005Assignee: American Superconductor CorporationInventors: Leslie G. Fritzemeier, Wei Zhang, Walter C. Palm, Martin W. Rupich
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Patent number: 6797313Abstract: Superconductor reactors, methods and systems are disclosed.Type: GrantFiled: July 30, 2002Date of Patent: September 28, 2004Assignee: American Superconductor CorporationInventors: Leslie G. Fritzemeier, Darren T. Verebelyi, Martin W. Rupich, Wei Zhang, Qi Li, Xiaoping Li
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Patent number: 6730410Abstract: 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.Type: GrantFiled: July 14, 2000Date of Patent: May 4, 2004Assignees: Electronic Power Research Institute, Incorporated, The Regents of the University of CaliforniaInventors: Leslie G. Fritzemeier, Qi Li, Martin W. Rupich, Elliott D. Thompson, Edward J. Siegal, Cornelis Leo Hans Thieme, Suresh Annavarapu, Paul N. Arendt, Stephen R. Foltyn
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Publication number: 20040071882Abstract: Superconductor precursor solutions are disclosed. The precursor solutions contain, for example, a salt of a rare earth metal, a salt of an alkaline earth metal and a salt of a transition metal. The precursor solutions can optionally include a Lewis base. The precursor solutions can be processed relatively quickly to provide a relatively thick and good quality intermediate of a rare earth metal-alkaline earth metal-transition metal oxide.Type: ApplicationFiled: September 29, 2003Publication date: April 15, 2004Applicant: American Superconductor Corporation, a Delaware corporationInventors: Martin W. Rupich, Thomas A. Kodenkandath
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Patent number: 6694600Abstract: A method is described to prepare a highly textured oxide superconductor article in a single deformation-sinter process. A precursor article including a plurality of filaments comprising a precursor oxide having a dominant amount of a tetragonal BSCCO 2212 phase and a constraining member substantially surrounding each of the filaments is provided. Each of the filaments extends along the length of the article. The oxide article is subjected to a heat treatment at an oxygen partial pressure and temperature selected to convert a tetragonal BSCCO 2212 oxide into an orthorhombic BSCCO 2212 oxide and, thereafter, roll worked in a high reduction draft in a range of about 40% to 95% in thickness so that the filaments have a constraining dimension is substantially equivalent to a longest dimension of the oxide superconductor grains. The rolled article is sintered to obtain a BSCCO 2223 oxide superconductor.Type: GrantFiled: November 21, 2001Date of Patent: February 24, 2004Assignee: American Superconductor CorporationInventors: Qi Li, Eric R. Podtburg, Patrick John Walsh, William L. Carter, Gilbert N. Riley, Jr., Martin W. Rupich, Elliott Thompson, Alexander Otto
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Publication number: 20040014605Abstract: A method is described to prepare a highly textured oxide superconductor article in a single deformation-sinter process. A precursor article including a plurality of filaments comprising a precursor oxide having a dominant amount of a tetragonal BSCCO 2212 phase and a constraining member substantially surrounding each of the filaments is provided. Each of the filaments extends along the length of the article. The oxide article is subjected to a heat treatment at an oxygen partial pressure and temperature selected to convert a tetragonal BSCCO 2212 oxide into an orthorhombic BSCCO 2212 oxide and, thereafter, roll worked in a high reduction draft in a range of about 40% to 95% in thickness so that the filaments have a constraining dimension is substantially equivalent to a longest dimension of the oxide superconductor grains. The rolled article is sintered to obtain a BSCCO 2223 oxide superconductor.Type: ApplicationFiled: November 21, 2001Publication date: January 22, 2004Inventors: Qi Li, Eric R. Podtburg, Patrick John Walsh, William L. Carter, Gilbert N. Riley, Martin W. Rupich, Elliott Thompson, Alexander Otto
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Patent number: 6673387Abstract: A process is described for formation of oxide films independent of thickness from precursor films comprising metals, metal oxides, and metal fluorides with properties and structures similar to those previously only obtained in thin films, for example less than about 0.4 microns.Type: GrantFiled: July 14, 2000Date of Patent: January 6, 2004Assignee: American Superconductor CorporationInventors: Wei Zhang, Qi Li, Martin W. Rupich
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Patent number: 6669774Abstract: The invention relates to methods and compositions for making a multi-layer article. The compositions can be used in relatively fast methods which can superconductor material intermediates that have relatively few cracks and/or blisters. The compositions can have relatively low water contents.Type: GrantFiled: July 14, 2000Date of Patent: December 30, 2003Assignee: American Superconductor CorporationInventors: Wei Zhang, Edward J. Siegal, Martin W. Rupich, Qi Li