Patents by Inventor Michael T. Lanagan
Michael T. Lanagan 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: 11527834Abstract: An antenna capable of being joined to an antenna feed perpendicular to a ground plane includes a conductive radiator and a circular wafer surrounding the radiator. The radiator is tubular and has a longitudinal slot along the entire length thereof, parallel to the radiator's axis. The antenna feed can be connected across the slot. The wafer, made either or a conventional high dielectric isotropic material or of a uniaxial dielectric material, is spaced apart from the radiator and has a thickness approximately equal to the width of the slot, a diameter wherein a ratio of a diameter of the radiator to the diameter of the wafer is approximately 35%, and is located at a height above the ground plane equal to approximately 35% of the length of the radiator. The material of the wafer has a dielectric tensor with high polarizability in the axial direction and can be applied to preexisting antennas. This antenna gives enhanced bandwidth over ordinary slotted antennas.Type: GrantFiled: October 14, 2021Date of Patent: December 13, 2022Inventors: Susan M Safford, David A Tonn, Michael T Lanagan, Eugene Furman, Steven E Perini
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Patent number: 11275132Abstract: An apparatus for transmitting and receiving radiofrequency (RF) signals in a magnetic resonance imaging system for proton and X-nuclear imaging includes at least one radiofrequency (RF) coil and an ultrahigh dielectric constant material incorporated within the at least one RF coil. The permittivity of the ultrahigh dielectric constant material depends on a temperature of the material and is tunable. The apparatus also includes a temperature controller that is thermally coupled to the ultrahigh dielectric constant material. The temperature controller is configured to control a temperature of the ultrahigh dielectric constant material to tune and optimize the permittivity of the ultrahigh dielectric constant material. A chemical structure and composition of the ultrahigh dielectric constant material is selected to control and optimize the permittivity and a dielectric loss of the ultrahigh dielectric constant material and a temperature dependence of the ultrahigh dielectric constant material.Type: GrantFiled: April 8, 2020Date of Patent: March 15, 2022Assignees: REGENTS OF THE UNIVERSITY OF MINNESOTA, The Penn State Research FoundationInventors: Wei Chen, Byeong-Yeul Lee, Xiao-Hong Zhu, Hannes M. Wiesner, Michael T. Lanagan, Qing X. Yang, Sebastian Rupprecht, Navid P. Gandji, Maryam Sarkarat
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Publication number: 20200319275Abstract: An apparatus for transmitting and receiving radiofrequency (RF) signals in a magnetic resonance imaging system for proton and X-nuclear imaging includes at least one radiofrequency (RF) coil and an ultrahigh dielectric constant material incorporated within the at least one RF coil. The permittivity of the ultrahigh dielectric constant material depends on a temperature of the material and is tunable. The apparatus also includes a temperature controller that is thermally coupled to the ultrahigh dielectric constant material. The temperature controller is configured to control a temperature of the ultrahigh dielectric constant material to tune and optimize the permittivity of the ultrahigh dielectric constant material. A chemical structure and composition of the ultrahigh dielectric constant material is selected to control and optimize the permittivity and a dielectric loss of the ultrahigh dielectric constant material and a temperature dependence of the ultrahigh dielectric constant material.Type: ApplicationFiled: April 8, 2020Publication date: October 8, 2020Inventors: Wei Chen, Byeong-Yeul Lee, Xiao-Hong Zhu, Hannes M. Wiesner, Michael T. Lanagan, Qing X. Yang, Sebastian Rupprecht, Navid P. Gandji, Maryam Sarkarat
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Patent number: 10586628Abstract: A nanoparticle composition comprising a substrate comprising a metal oxide component and an aluminum oxide component; and a metallocene olefin polymerization catalyst component coupled to the substrate is disclosed. The metal oxide component is homogenously dispersed throughout the nanocomposite composition.Type: GrantFiled: September 14, 2015Date of Patent: March 10, 2020Assignees: Northwestern University, The Penn State Research FoundationInventors: Tobin J. Marks, Michael T. Lanagan, Mark A. Ratner, Massimiliano Delferro, Lisa A. Fredin, Zhong Li
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Publication number: 20160071627Abstract: A nanoparticle composition comprising a substrate comprising aluminum nanoparticles, an Al2O3 component coating said aluminum nanoparticles, and a metallocene catalyst component coupled to the Al2O3 component; and a polyolefin component coupled to said substrate.Type: ApplicationFiled: September 14, 2015Publication date: March 10, 2016Inventors: Tobin J. Marks, Michael T. Lanagan, Mark A. Ratner, Massimiliano Deferro, Lisa A. Fredin, Zhong Li
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Patent number: 8729182Abstract: A nanoparticle composition comprising a substrate comprising a metal oxide component and an aluminum oxide component; and a metallocene olefin polymerization catalyst component coupled to the substrate is disclosed. The metal oxide component is homogenously dispersed throughout the nanocomposite composition.Type: GrantFiled: April 18, 2012Date of Patent: May 20, 2014Assignees: Northwestern University, The Penn State Research FoundationInventors: Tobin J. Marks, Michael T. Lanagan, Neng Guo, Sara A. DiBenedetto
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Publication number: 20130317170Abstract: A nanoparticle composition comprising a substrate comprising aluminum nanoparticles, an Al2O3 component coating said aluminum nanoparticles, and a metallocene catalyst component coupled to the Al2O3 component; and a polyolefin component coupled to said substrate.Type: ApplicationFiled: March 15, 2013Publication date: November 28, 2013Inventors: Tobin J. Marks, Michael T. Lanagan, Mark A. Ratner, Massimiliano Delferro, Lisa A. Fredin, Zhong Li
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Publication number: 20120252976Abstract: Metal oxide-polymer composites and methods of preparation.Type: ApplicationFiled: April 18, 2012Publication date: October 4, 2012Inventors: Tobin J. Marks, Michael T. Lanagan, Neng Guo, Sara A. DiBenedetto
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Patent number: 8163347Abstract: Disclosed are metal oxide-polymer composites having a substrate comprising a metal oxide component, an aluminum oxide component, and a metallocene olefin polymerization catalyst component coupled to the substrate. The compositions can be used as thin films in an insulator device. Also disclosed is a method of preparing such compositions.Type: GrantFiled: November 19, 2007Date of Patent: April 24, 2012Assignees: Northwestern University, The Penn State Research FoundationInventors: Tobin J. Marks, Michael T. Lanagan, Neng Guo, Sara A DiBenedetto
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Publication number: 20080166483Abstract: Metal oxide-polymer composites and methods of preparation.Type: ApplicationFiled: November 19, 2007Publication date: July 10, 2008Inventors: Tobin J. Marks, Michael T. Lanagan, Neng Guo, Sara A. DiBenedetto
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Patent number: 6680269Abstract: The disclosed invention relates to Bi2O3—ZnO—Ta2O5 dielectric compounds and compositions, and to their manufacture. The compounds of the invention have outstanding K, Q, TCF, and TCC. Examples of these properties include a K of between 58 and 80, a low dielectric loss (tan &dgr;<0.003), and a TCC<30 ppm/° C. Ceramic compositions produced include those represented by Bi2(ZnTa2)xO6x+3 where 0.57≦x≦1.0, Bi2(ZnTay)2/3O((5y+11)/3) where 1.0≦y≦3.0, as well as by Bi2(ZnTay)2/3O((5y+11)/3) where 1.0≦y≦3.0 with the proviso that y is not=2.0. Solid solutions of compounds defined by the formula r(Bi2(Zn1/3Ta2/3)2O7)-(1−r)(Bi3/2Zn2/3)(Zn1/2Ta3/2)O7)) where 0<r<1 also are produced.Type: GrantFiled: June 27, 2001Date of Patent: January 20, 2004Assignee: The Penn State Research FoundationInventors: Tomohiro Sogabe, Thomas R. Shrout, Michael T. Lanagan, Clive A. Randall, Hyuk-Joon Youn
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Patent number: 6630819Abstract: An optical current transducer configured to sense current in the conductor is disclosed. The optical current transducer includes a light source and a polarizer that generates linearly polarized light received from a the light source. The light is communicated to a magneto-optic garnet that includes, among other elements, bismuth, iron and oxygen and is coupled to the conductor. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer. The optical current transducer also includes an analyzer in optical communication with the magneto-optic garnet. The analyzer detects the rotation of the linearly polarized light caused by the magneto-optic garnet.Type: GrantFiled: February 22, 2001Date of Patent: October 7, 2003Assignee: The University of ChicagoInventors: Michael T. Lanagan, Vitalii K. Valsko-Vlasov, Brandon L. Fisher, Ulrich Welp
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Publication number: 20020145414Abstract: An optical current transducer configured to sense current in the conductor is disclosed. The optical current transducer includes a light source and a polarizer that generates linearly polarized light received from a the light source. The light is communicated to a magneto-optic garnet that includes, among other elements, bismuth, iron and oxygen and is coupled to the conductor. The magneto-optic garnet is configured to rotate the polarization of the linearly polarized light received from the polarizer. The optical current transducer also includes an analyzer in optical communication with the magneto-optic garnet. The analyzer detects the rotation of the linearly polarized light caused by the magneto-optic garnet.Type: ApplicationFiled: February 22, 2001Publication date: October 10, 2002Applicant: Argonne National LaboratoryInventors: Michael T. Lanagan, Vitalii K. Valsko-Vlasov, Brandon L. Fisher, Ulrich Welp
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Publication number: 20020033477Abstract: The disclosed invention relates to Bi2O3—ZnO—Ta2O5 dielectric compounds and compositions, and to their manufacture. The compounds of the invention have outstanding K, Q, TCF, and TCC. Examples of these properties include a K of between 58 and 80, a low dielectric loss (tan &dgr;<0.003), and a TCC<30 ppm/° C. Ceramic compositions produced include those represented by Bi2(ZnTa2)xO6x+3 where 0.57≦x≦1.0, Bi2(ZnTay)⅔O((5y+11)/3) where 1.0≦y≦3.0, as well as by Bi2(ZnTay)⅔O((5y+11)/3) where 1.0≦y≦3.0 with the proviso that y is not=2.0. Solid solutions of compounds defined by the formula r(Bi2(Zn⅓Ta⅔)2O7)-(1−r)(Bi{fraction (3/2)}Zn⅔)(Zn½Ta{fraction (3/2)})O7))where 0<r<1 also are produced.Type: ApplicationFiled: June 27, 2001Publication date: March 21, 2002Applicant: Penn State Research Foundation The Pennsylvania State UniversityInventors: Tomohiro Sogabe, Thomas R. Shrout, Michael T. Lanagan, Clive A. Randall, Hyuk-Joon Youn
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Patent number: 5929001Abstract: A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase material. These components are combined to form a solid compacted mass with the material disposed in the polycrystalline high temperature superconductor. This combined mixture is rapidly heated, forming a dispersion of nanophase size particles without a eutectic reaction. These nanophase particles can have a flat plate or columnar type morphology.Type: GrantFiled: October 11, 1995Date of Patent: July 27, 1999Assignee: University of ChicagoInventors: Kenneth C. Goretta, Michael T. Lanagan, Dean J. Miller, Suvankar Sengupta, John C. Parker, Jieguang Hu, Uthamalingam Balachandran, Richard W. Siegel, Donglu Shi
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Patent number: 5821201Abstract: A (BiPb).sub.2 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x (Bi223) superconductor with high J.sub.c, phase purity, density and mechanical strength is formed from Bi2223 powder which is synthesized from a mixture of Bi.sub.2 O.sub.3, PbO, SrCO.sub.3, CaCo.sub.3 and CuO. The mixture is milled, then dried and calcined to synthesize the Bi2223 powder with the desired phase purity. The calcination is performed by heating the dried mixture for 50 hours at 840.degree. C. The partially synthesized powder is then milled for 1-4 hours before calcining further for another 50 hours at 855.degree. C. to complete the synthesis. After calcination, the Bi2223 powder is cold pressed to a predetermined density and sinter forged under controlled temperature and time to form a Bi2223 superconductor with the desired superconducting properties.Type: GrantFiled: November 13, 1996Date of Patent: October 13, 1998Assignee: The United States of America as represented by the United States Department of EnergyInventors: Nan Chen, Kenneth C. Goretta, Michael T. Lanagan
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Patent number: 5731521Abstract: A method and an apparatus for nondestructive detecting and evaluating chas in the microstructural properties of a material by employing one or more magnetostrictive transducers linked to the material by means of one or more sonic signal conductors. The magnetostrictive transducer or transducers are connected to a pulser/receiver which in turn is connected to an oscilloscope. The oscilloscope is connected to a computer which employs an algorithm to evaluate changes in the velocity of a signal transmitted to the material sample as function of time and temperature.Type: GrantFiled: October 13, 1995Date of Patent: March 24, 1998Assignee: The United States of America as represented by the Department of EnergyInventors: Michael T. Lanagan, David S. Kupperman, George A. Yaconi
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Patent number: 5674814Abstract: The present invention is directed to a process for producing high temperature superconducting ceramic materials. More particularly, the present invention is directed to a process that enhances the densification of Bi.sub.1.8 Pb.sub.0.4 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.10 "BSCCO" ceramics.Type: GrantFiled: November 14, 1994Date of Patent: October 7, 1997Assignee: University of ChicagoInventors: Michael T. Lanagan, John J. Picciolo, Stephen E. Dorris
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Patent number: 5468566Abstract: An article and method of manufacture of (Bi, Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor.Type: GrantFiled: September 13, 1994Date of Patent: November 21, 1995Assignee: University of ChicagoInventors: Stephen E. Dorris, Roger B. Poeppel, Barton C. Prorok, Michael T. Lanagan, Victor A. Maroni
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Patent number: 5354535Abstract: An article and method of manufacture of (Bi,Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi,Pb)-Sr-Ca-Cu-O superconductor.Type: GrantFiled: April 6, 1993Date of Patent: October 11, 1994Assignee: University of ChicagoInventors: Stephen E. Dorris, Roger B. Poeppel, Barton C. Prorok, Michael T. Lanagan, Victor A. Maroni