Patents by Inventor Maxim Martchevskii
Maxim Martchevskii 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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Publication number: 20190101459Abstract: This disclosure provides systems, methods, and apparatus related to thermometry. In one aspect, a method includes applying a first mechanical pulse to an object. The first vibrational response of the object to the first mechanical pulse is recorded. A second mechanical pulse is applied to the object. A second vibrational response of the object to the second mechanical pulse. The second vibrational response is compared to the first vibrational response to determine a change in a temperature in the object.Type: ApplicationFiled: December 3, 2018Publication date: April 4, 2019Inventor: Maxim Martchevskii
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Patent number: 8926868Abstract: A superconducting article comprises a substrate, a buffer layer overlying the substrate, and a high-temperature superconducting (HTS) layer overlying the buffer layer. The HTS layer includes a plurality of nanorods. A method of forming a superconducting article comprises providing a substrate, depositing a buffer layer overlying the substrate; forming a nanodot array overlying the buffer layer; depositing an array of nanorods nucleated on the nanodot array; and depositing a high-temperature superconducting (HTS) layer around the array of nanorods and overlying the buffer layer.Type: GrantFiled: July 27, 2010Date of Patent: January 6, 2015Assignees: University of Houston System, Superpower, Inc.Inventors: Venkat Selvamanickam, Goran Majkic, Maxim Martchevskii
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Patent number: 8271062Abstract: A superconducting article and method of fabrication are provided. The superconducting article includes a superconducting structure, which includes a superconducting conductor and multiple discrete overlay regions of higher heat capacity than the superconducting conductor. The multiple discrete overlay regions are disposed along a length of the superconducting conductor, in thermal contact with the superconducting conductor, and positioned to define a heat modulation pattern along the length of the superconducting structure. The multiple discrete overlay regions create a temperature distribution favorable to transition of the superconducting structure under load from a normal resistive state to a superconductive state by facilitating formation of a continuous superconducting path along the length of the superconducting structure.Type: GrantFiled: April 27, 2009Date of Patent: September 18, 2012Assignee: Superpower, Inc.Inventor: Maxim Martchevskii
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Patent number: 8260387Abstract: A superconducting article is provided which includes a superconducting tape assembly. The superconducting tape assembly includes a superconducting tape layer, having one or more superconducting tapes, and a high-permeability magnetic material layer coupled to the superconducting tape layer. The high-permeability magnetic material layer includes a high-permeability magnetic material which remains magnetically soft at a critical temperature Tc of the superconducting tape, and with presence of an ac magnetic field acting on the superconducting tape assembly, re-magnetizes to divert at least a portion of a normal component of the ac magnetic field therethrough, which reduces ac loss in the superconducting tape layer by modifying the ac magnetic field distribution within the superconducting tape of the superconducting tape layer.Type: GrantFiled: January 9, 2009Date of Patent: September 4, 2012Assignee: Superpower, Inc.Inventor: Maxim Martchevskii
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Patent number: 8218272Abstract: A superconducting article is provided which incorporates an early quench detection facility. The superconducting article includes a first superconductive segment and a second superconductive segment, along with a magnetic field sensor(s). The magnetic field sensor(s) is disposed to monitor relative change in strength of a net magnetic field generated by a first current passing through the first superconductive segment and a second current passing through the second superconductive segment. A relative change in strength of the net magnetic field indicates degradation of a critical quench current of the first superconductive segment or the second superconductive segment, caused for example, by formation of one or more hot-spots or quench regions in the first or second superconductive segment. The indication of degradation is thus obtained prior to complete superconductive segment quenching.Type: GrantFiled: April 6, 2009Date of Patent: July 10, 2012Assignee: Superpower, Inc.Inventor: Maxim Martchevskii
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Publication number: 20110028328Abstract: A superconducting article comprises a substrate, a buffer layer overlying the substrate, and a high-temperature superconducting (HTS) layer overlying the buffer layer. The HTS layer includes a plurality of nanorods. A method of forming a superconducting article comprises providing a substrate, depositing a buffer layer overlying the substrate; forming a nanodot array overlying the buffer layer; depositing an array of nanorods nucleated on the nanodot array; and depositing a high-temperature superconducting (HTS) layer around the array of nanorods and overlying the buffer layer.Type: ApplicationFiled: July 27, 2010Publication date: February 3, 2011Applicant: UNIVERSITY OF HOUSTON SYSTEMInventors: Venkat SELVAMANICKAM, Goran MAJKIC, Maxim MARTCHEVSKII
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Publication number: 20100273657Abstract: A superconducting article and method of fabrication are provided. The superconducting article includes a superconducting structure, which includes a superconducting conductor and multiple discrete overlay regions of higher heat capacity than the superconducting conductor. The multiple discrete overlay regions are disposed along a length of the superconducting conductor, in thermal contact with the superconducting conductor, and positioned to define a heat modulation pattern along the length of the superconducting structure. The multiple discrete overlay regions create a temperature distribution favorable to transition of the superconducting structure under load from a normal resistive state to a superconductive state by facilitating formation of a continuous superconducting path along the length of the superconducting structure.Type: ApplicationFiled: April 27, 2009Publication date: October 28, 2010Applicant: SUPERPOWER, INC.Inventor: Maxim MARTCHEVSKII
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Publication number: 20100254047Abstract: A superconducting article is provided which incorporates an early quench detection facility. The superconducting article includes a first superconductive segment and a second superconductive segment, along with a magnetic field sensor(s). The magnetic field sensor(s) is disposed to monitor relative change in strength of a net magnetic field generated by a first current passing through the first superconductive segment and a second current passing through the second superconductive segment. A relative change in strength of the net magnetic field indicates degradation of a critical quench current of the first superconductive segment or the second superconductive segment, caused for example, by formation of one or more hot-spots or quench regions in the first or second superconductive segment. The indication of degradation is thus obtained prior to complete superconductive segment quenching.Type: ApplicationFiled: April 6, 2009Publication date: October 7, 2010Applicant: SUPERPOWER, INC.Inventor: Maxim Martchevskii
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Publication number: 20100179063Abstract: A superconducting article is provided which includes a superconducting tape assembly. The superconducting tape assembly includes a superconducting tape layer, having one or more superconducting tapes, and a high-permeability magnetic material layer coupled to the superconducting tape layer. The high-permeability magnetic material layer includes a high-permeability magnetic material which remains magnetically soft at a critical temperature Tc of the superconducting tape, and with presence of an ac magnetic field acting on the superconducting tape assembly, re-magnetizes to divert at least a portion of a normal component of the ac magnetic field therethrough, which reduces ac loss in the superconducting tape layer by modifying the ac magnetic field distribution within the superconducting tape of the superconducting tape layer.Type: ApplicationFiled: January 9, 2009Publication date: July 15, 2010Applicant: SuperPower. Inc.Inventor: Maxim MARTCHEVSKII
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Patent number: 6396261Abstract: A scanning AC hall microscope and a method which measures the domain pattern of magnetic materials, such as magnetic storage media, by measuring the oscillatory motion of a domain boundary under the influence of an external applied AC magnetic field, which allows a differentiation between domains which are immobile and domains which are mobile.Type: GrantFiled: March 20, 2000Date of Patent: May 28, 2002Assignee: NEC Research Institute, Inc.Inventors: Maxim Martchevskii, Mark J. Higgins, Sabyasachi Bhattacharya