Magnet Structure Or Material Patents (Class 335/296)
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Publication number: 20150022300Abstract: Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures.Type: ApplicationFiled: August 16, 2014Publication date: January 22, 2015Inventor: Larry W. Fullerton
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Patent number: 8937521Abstract: An improved system for concentrating magnetic flux of a multi-pole magnetic structure at the surface of a ferromagnetic target uses pole pieces having a magnet-to-pole piece interface with a first area and a pole piece-to-target interface with a second area substantially smaller than the first area, where the target can be a ferromagnetic material or a complementary pole pieces. The multi-pole magnetic structure can be a coded magnetic structure or an alternating polarity structure comprising two polarity directions, or can be a hybrid structure comprising more than two polarity directions. A magnetic structure can be made up of discrete magnets or can be a printed magnetic structure.Type: GrantFiled: December 11, 2013Date of Patent: January 20, 2015Assignee: Correlated Magnetics Research, LLC.Inventors: Larry W. Fullerton, Mark D. Roberts, Wesley R. Swift, Jr.
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Patent number: 8917154Abstract: An improved system for concentrating magnetic flux of a multi-pole magnetic structure at the surface of a ferromagnetic target uses pole pieces having a magnet-to-pole piece interface with a first area and a pole piece-to-target interface with a second area substantially smaller than the first area, where the target can be a ferromagnetic material or a complementary pole pieces. The multi-pole magnetic structure can be a coded magnetic structure or an alternating polarity structure comprising two polarity directions, or can be a hybrid structure comprising more than two polarity directions. A magnetic structure can be made up of discrete magnets or can be a printed magnetic structure.Type: GrantFiled: April 22, 2014Date of Patent: December 23, 2014Assignee: Correlated Magnetics Research, LLC.Inventors: Larry W. Fullerton, Mark D. Roberts, Wesley R. Swift, Jr., Hamilton G. Moore
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Publication number: 20140368304Abstract: Provided is a powder for a magnetic core (1), including a soft magnetic metal powder (2); and an insulating coating film (3) covering a surface of the soft magnetic metal powder (2), in which the insulating coating film (3) is formed of an aggregate of crystals (4) obtained by cleaving a layered oxide. The crystals (4) are obtained by, for example, cleaving a swellable smectite-group mineral, which is one kind of swellable layered clay mineral as the layered oxide.Type: ApplicationFiled: February 4, 2013Publication date: December 18, 2014Applicant: NTN CORPORATIONInventors: Hikaru Araki, Norikazu Muneda, Eiichirou Shimazu
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Patent number: 8904628Abstract: Disclosed herein is a method of manufacturing a noise removing filter, including preparing at least one conductive pattern, an insulating layer for covering the at least one conductive pattern, and a lower magnetic body including input/output stud terminals for electrically inputting and outputting electricity to and from the at least one conductive pattern; disposing a recognizable portion on upper surfaces of the input/output stud terminals; disposing an upper magnetic body on the recognizable portion and the insulating layer; polishing the upper magnetic body; and removing the recognizable portion such that a level of an upper surface of the upper magnetic body is higher than levels of the upper surfaces of the input/output stud terminals.Type: GrantFiled: December 17, 2012Date of Patent: December 9, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Moon Lee, Sung Kwon Wi, Jeong Bok Kwak, Won Chul Sim, Young Seuck Yoo, Yong Suk Kim
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Patent number: 8878638Abstract: A system and a method for the controlled manipulation of any number of magnetic particles in solution are shown. The system and the method of the present invention are based on the employment of magnetic conduits properly structured in order to inject, move and annihilate with high precision magnetic domain walls and on the fact that said magnetic domain walls exert a high attraction force on magnetic particles. The injection, movement and annihilation of domain walls along said magnetic conduit result, therefore, in the trapping, movement and release, respectively, of single magnetic particles placed in solution in proximity of said magnetic conduits. The devices of the present invention guarantee the possibility of a digital transfer of magnetic particles along conduits formed by linear segments as well as high control and nanometric precision in the manipulation of said magnetic particles on curved conduits.Type: GrantFiled: February 12, 2010Date of Patent: November 4, 2014Assignee: Asociacion-Centro de Investigacion Cooperativa en Nanociencias-CIC NanoguneInventors: Ricardo Bertacco, Matteo Cantoni, Marco Donolato, Marco Gobbi, Stefano Brivio, Paolo Vavassori, Daniela Petti
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Patent number: 8860539Abstract: A magnetized structure that induces in a central area of interest a homogeneous magnetic field of predetermined orientation relative to a longitudinal axis (z) of the structure comprises at least two magnetized rings (110, 120) disposed symmetrically relative to a plane (P) that is perpendicular to the longitudinal axis (z) and that contains the central area of interest, and at least one median annular magnetized structure disposed at least partly between the two magnetized rings (110, 120) and also disposed symmetrically relative to the plane (P) of symmetry, one of the two magnetized rings (110) being magnetized radially relative to the longitudinal axis (z) with divergent magnetization and the other of the two magnetized rings (120) being magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure being magnetized with an orientation different from that of the magnetization of the two magnetized rings (110, 120).Type: GrantFiled: August 27, 2010Date of Patent: October 14, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Dimitrios Sakellariou, Cédric Hugon, Guy Aubert
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Patent number: 8841980Abstract: A coil comprises a set of windings with a generally annular shape and formed by a plurality of series-connected partial windings made of a superconductor with a high critical temperature, in which these partial windings are arranged next to each other in stratified form, and at least one cooling sheet which is made of thermally conductive material and arranged in contact with this set of windings and which is designed to be connected in a thermally conductive manner to a cryogenic cooling system.Type: GrantFiled: September 20, 2011Date of Patent: September 23, 2014Assignee: ASG Superconductors S.p.A.Inventors: Daniele Damiani, Adamo Laurenti, Roberto Marabotto, Mauro Perrella Serge
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Patent number: 8838202Abstract: Particle radiation therapy equipment arranged to apply a charged particle beam to a region of application in a predetermined direction, comprising a charged particle beam source arranged to direct a charged particle beam in the predetermined direction, further comprising magnetic field generation means for generating a magnetic field in an imaging volume which includes the region of application at the same time that the charged particle beam is applied, wherein the magnetic field generation means is arranged to provide access to the region of application for the charged particle beam, and to provide a homogeneous magnetic field in the region of application of the charged particle beam, said magnetic field being directed substantially in the predetermined direction.Type: GrantFiled: June 16, 2006Date of Patent: September 16, 2014Assignee: Siemens PlcInventor: Marcel Jan Marie Kruip
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Publication number: 20140253448Abstract: Devices, systems, and methods are provided for providing physical feedback in a handheld electronic controller. In general, the devices, systems, and methods can allow a handheld controller in an electronic system to provide a shock force or impact force to a user of the controller. In one exemplary embodiment, the controller can be configured to provide the shock or impact force in correspondence with a virtual shock force or impact force in an entertainment system in communication with the controller being controlled by the user. The actual shock force or impact force can be directionally imparted to the controller such that the user feels the actual shock force or impact force in a same direction as the virtual shock force or impact force.Type: ApplicationFiled: March 7, 2013Publication date: September 11, 2014Applicant: LENOVO (SINGAPORE) PTE. LTD.Inventors: Fusanobu Nakamura, Qiang Zhang
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Patent number: 8829462Abstract: A multipole magnet for deflecting a beam of charged particles, comprising: a plurality of ferromagnetic poles arranged in a pole plane; a plurality of permanent magnets each having a magnetisation direction, and each being arranged to supply magnetomotive force to the plurality of ferromagnetic poles to produce a magnetic field along the pole plane in a beamline space between the poles; and a plurality of ferromagnetic flux conducting members arranged to channel magnetic flux from at least one of the plurality of permanent magnets; wherein the multipole magnet comprises an even number of ferromagnetic poles, each pole being arranged to diametrically oppose another of the poles in the pole plane along a pole axis, wherein each of the plurality of permanent magnets is associated with at least one of the plurality of poles and the magnetisation direction of each permanent magnet isorientated in the pole plane at an angle of at least 45° relative to the pole axis of the associated pole.Type: GrantFiled: October 4, 2011Date of Patent: September 9, 2014Assignee: The Science and Technology Facilities CouncilInventors: James Anthony Clarke, Benjamin John Arthur Shepherd, Neil Marks, Norbert Collomb
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Patent number: 8830019Abstract: The structure includes cylindrical columnar and tubular bonded magnets. The columnar magnet has at least one pair of N and S poles that are alternately produced in the longitudinal direction. The tubular magnet surrounds the columnar magnet, and has at least one pair of N and S poles that are alternately produced in the longitudinal direction. Poles of the columnar and tubular magnets that are opposed to each other in the direction perpendicular to the axis of the columnar magnet as the propulsion force direction are of opposite magnetic polarity so that magnetic fields are produced in the direction perpendicular to the propulsion force direction. The surface magnetic flux density profile balance can be smoothed by adjusting higher and lower parts of the profiles of the columnar and tubular magnets.Type: GrantFiled: September 27, 2011Date of Patent: September 9, 2014Assignees: Nichia Corporation, I&P Co., Ltd., K Technology CorporationInventors: Kohei Ihara, Syuji Matsumura, Keiki Nishino
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Patent number: 8823479Abstract: The present invention provides a method for positioning a suspension body and a magnetic suspension device using the method. The method comprises the following steps: step 1, providing a positioning auxiliary forming a channel for the suspension body to enter and rotate therein; step 2, placing the positioning auxiliary on a magnetic suspension base, and a center line of the channel of the positioning auxiliary being substantially collinear with a center line of the rotation of the suspension body at work; step 3, according to the channel of the positioning auxiliary, placing the suspension body at the top of the positioning auxiliary; step 4, releasing the suspension body to make it voluntarily slide down to a position to be suspended to work; step 5, removing the positioning auxiliary.Type: GrantFiled: July 6, 2010Date of Patent: September 2, 2014Inventors: XiaoBing Wang, LiangQing Li
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Patent number: 8816807Abstract: An anisotropic conductive adhesive (ACA) arrangement is disclosed, including a thermosetting resin disposed between a connector of a first structure and a connector of a second structure, and a plurality of ferromagnetic conductive particles dispersed through the thermosetting resin, wherein the plurality of ferromagnetic conductive particles form columns between the connector of the first structure and the connector of the second structure, and wherein a density of the ferromagnetic particles in the columns is substantially higher than a density of the plurality of ferromagnetic particles away from the columns.Type: GrantFiled: May 23, 2011Date of Patent: August 26, 2014Assignee: Purdue Research FoundationInventors: William J. Chappell, Sungwook Moon, Maria Bellorin
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Patent number: 8810345Abstract: A device for retrieving and securing golf ball marks while providing several modes of motion of the secured ball mark employs paired magnets oppositely positioned within a securing surface having circular curvature.Type: GrantFiled: August 23, 2013Date of Patent: August 19, 2014Inventor: J. Thomas Goserud
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Patent number: 8808861Abstract: An organic-based magnet is formed by molecular layer deposition (MLD) of a first compound and MLD of a second compound. The first or second compound containing a metal-containing compound. The first and second compounds being reactive with each other to form a first layer organic-based magnet. A laminate composite includes a first monolayer including a metal bonded to a magnet forming organic compound. A second monolayer may be in direct contact with the first monolayer. One of the first monolayer and the second monolayer having an induced magnetization when exposed to a magnetic field. A device includes the laminate composite and a nonmagnetic film thereon. A method of making an organic magnet on a substrate in a vacuum chamber includes depositing a first layer of metal-containing compound on the substrate by MLD.Type: GrantFiled: November 18, 2011Date of Patent: August 19, 2014Assignee: The Ohio State UniversityInventors: Arthur J. Epstein, Chi-Yueh Kao, Yong G. Min
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Patent number: 8803646Abstract: A system and method for magnetic levitation with a tilted orientation. In one embodiment, a magnetic levitation base together with a magnetic levitation affecting element that is located to the side of the levitation base support the magnetic levitation of a spinning magnetic top in a tilted orientation. The tilt angle of the levitating magnetic top may be greater than the tilt angle of the levitation base. In one embodiment, the levitation affecting element may comprise one or more magnets similar to that of the levitation base. The mass of the top and the tilt of the levitation base that are required for magnetic levitation may be adjusted by adjusting the levitation affecting element (e.g. altering its position and/or the strength of its magnetic field.) The general direction of the tilt may be reversed by changing the magnetic north-south direction (e.g. turning over or reversing the electromagnetic current) of the levitation affecting element.Type: GrantFiled: January 22, 2008Date of Patent: August 12, 2014Inventor: George Farber
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Patent number: 8797134Abstract: Disclosed is a field coil assembly of an electromagnetic clutch including a bobbin from which lead wires, which are both ends of a coil made of an aluminum-based material, protrude outward, a core that surrounds the bobbin such that the lead wires are exposed, a bobbin terminal installed at the bobbin while being adjacent to the lead wire of the coil, and a connector coupled to the core and including a lead wire terminal. The lead wires of the coil are connected to the bobbin terminal through heating and pressing.Type: GrantFiled: December 20, 2010Date of Patent: August 5, 2014Assignee: Halla Visteon Climate Control CorporationInventors: Sung-Taeg Oh, Seong-Gyu Gong, Suk-Jae Chung, Seung-Kil Kim, Chung-Han Shin, Jong-Myung Seok, Dae-Yong Park
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Patent number: 8797131Abstract: A thermal shield and method for thermally cooling a magnetic resonance imaging (MRI) system are provided. One thermal shield includes a cooling tube forming a frame. The cooling tube is configured to receive therethrough cryogen fluid from a cryogen vessel of an MRI system. The thermal shield further includes at least one thermal control layer surrounding the frame and together with the frame is configured to provide thermal shielding of the MRI system.Type: GrantFiled: May 19, 2010Date of Patent: August 5, 2014Assignee: General Electric CompanyInventor: Longzhi Jiang
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Patent number: 8773230Abstract: The magnetized structure that induces in a central area of interest a homogeneous magnetic field oriented along a longitudinal axis (z) of the structure comprises first and second magnetized rings (111, 121) disposed symmetrically relative to a plane (P) that is perpendicular to said longitudinal axis (z) and that contains said central area of interest, and one median annular magnetized structure (330) disposed between the first and second magnetized rings (111, 121) and also disposed symmetrically relative to the plane (P) of symmetry. The first magnetized ring (111) is magnetized radially relative to the longitudinal axis (z) with divergent magnetization, the second magnetized ring (121) is magnetized radially relative to the longitudinal axis (z) with convergent magnetization, and the median annular magnetized structure (330) is magnetized along the longitudinal axis (z).Type: GrantFiled: August 27, 2010Date of Patent: July 8, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Dimitrios Sakellariou, Cédric Hugon, Guy Aubert
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Patent number: 8760250Abstract: A magnetic system and related method for generating energy is described. Multiple embodiments are described having different shapes, alternative designs to receive different driving forces, varied magnetic structures, and so forth. In an example implementation, a magnetic structure may include on a single side multiple magnetic sources having different magnetic polarities. Other description herein may be directed to magnetizer printing, adaptable/adjustable correlated magnet devices, entertainment devices having correlated magnet technology, and so forth. Furthermore, description of additional magnet-related technology and example implementations thereof is included herein.Type: GrantFiled: September 30, 2010Date of Patent: June 24, 2014Assignee: Correlated Magnetics Rsearch, LLC.Inventors: Larry W. Fullerton, Mark D. Roberts, James L. Richards
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Publication number: 20140167572Abstract: Provided are a motor and a sensing magnet of the motor. The sensing magnet includes a through hole that is positioned at a center portion thereof, and a plurality of poles which are formed along an outer periphery thereof. Here, the plurality of poles includes a first pole and a second pole extending from the first pole in a direction of the through hole.Type: ApplicationFiled: December 13, 2013Publication date: June 19, 2014Applicant: LG INNOTEK CO., LTD.Inventor: Shung Hun WOO
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Publication number: 20140167893Abstract: Device for generating an orientable and locally uniform magnetic field, including N?3 identical assemblies of cylindrical coils, each assemblies having a first and a second coil, the coils being coaxial with an axis oriented along a direction z and arranged symmetrically on either side of the plane, with a gap in the axial direction, the assemblies arranged such that their outlines in a plane xy perpendicular to the z-axis are regularly spaced along a circle of centre O and of radius a0>0, so to leave a central free space. A supply system supplies the coils with a current set to obtain, at the centre of the device, a magnetic field having the desired orientation. The device may include two pairs of cylindrical coils having a common axis oriented in said z-direction and passing through the centre of the circle, these coils being arranged symmetrically on either side of said xy-plane.Type: ApplicationFiled: December 13, 2013Publication date: June 19, 2014Inventor: Guy Aubert
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Publication number: 20140145522Abstract: Electromagnetic digital materials are made up of a set of voxels, some of which are made from electromagnetically active materials. Each voxel is adapted to be assembled into a structure according to a regular physical geometry and an electromagnetic geometry, and a majority of the voxels in the set are reversibly connectable to other voxels. Voxels in the set may differ in material composition or property from other voxels in the set. Voxels may be arranged into multi-voxel parts that are assembled into the structure according to a regular physical geometry and the electromagnetic geometry. Electromagnetic structures may be made from the electromagnetic digital material, and may be fabricated by an automated process that includes assembling a set of voxels by reversibly connecting the voxels to each other according to a regular physical geometry and an electromagnetic geometry and assembling the reversibly connected voxels into the electromagnetic structure.Type: ApplicationFiled: August 21, 2013Publication date: May 29, 2014Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Neil A. Gershenfeld, Nadya M. Peek, Ernest Rehmi Post, William Kai Langford
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Patent number: 8736407Abstract: This invention relates mainly to methods and apparatus for magnetizing a superconductor. We describe a method of changing the magnetization of a superconductor, by automatically controlling a magnet to generate a wave of magnetic flux, in particular a standing wave of magnetic flux, adjacent to the surface of said superconductor. In preferred implementations of the method the superconductor is positioned within a magnetic circuit including a ferromagnetic or ferrimagnetic material and the method further comprises regulating the magnetic circuit during or after changing the superconductor's magnetization.Type: GrantFiled: December 3, 2009Date of Patent: May 27, 2014Assignee: Magnifye LimitedInventor: Timothy Arthur Coombs
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Patent number: 8729990Abstract: A supported superconducting magnet includes a superconducting magnet arranged within an outer vacuum container and a support structure bearing the weight of the superconducting magnet against a support surface. The support structure includes a tubular suspension element located between the magnet and the support surface, the tubular suspension element retaining the magnet in a fixed relative position with reference to the outer vacuum container by means of complementary interface surfaces arranged to transmit the weight of the superconducting magnet to the support structure. The tubular suspension element is arranged about a generally vertical axis, and supports a solenoidal magnet structure which is arranged about a generally horizontal axis.Type: GrantFiled: May 30, 2012Date of Patent: May 20, 2014Assignee: Siemens plcInventors: Marcel Kruip, Nicholas Mann
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Patent number: 8704626Abstract: An improved system and method for moving an object includes a first correlated magnetic structure associated with a first object and a second correlated magnetic structure associated with a second object. The first and second correlated magnetic structures are complementary coded to achieve a peak attractive tensile force and a peak shear force when their code modulos are aligned thereby enabling magnetic attachment of the two objects whereby movement of one object causes movement of the other object as if the two objects were one object. Applying an amount of torque to one correlated magnetic structures greater than a torque threshold causes misalignment and decorrelation of the code modulos enabling detachment of the two objects. The number, location, and coding of the correlated magnetic structures can be selected to achieve specific torque characteristics, tensile force characteristics, and shear force characteristics.Type: GrantFiled: May 10, 2011Date of Patent: April 22, 2014Assignee: Correlated Magnetics Research, LLCInventors: Larry W. Fullerton, Mark D. Roberts
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Patent number: 8704625Abstract: An electromagnetic energy transducer configured to convert mechanical energy into electrical energy comprises two magnetic elements including a permanent magnetic element and a soft-magnetic element and an electrical coil. The permanent magnetic element and the soft-magnetic element are arranged to form a magnetic circuit and one of the two magnetic elements is movable in relation to the other of the two magnetic elements. The electrical coil surrounds a part of the soft magnetic element. The movable magnetic element is held in a first position by a spring force and moved into a second position by applying an external mechanical force exceeding the spring force, and at the first position the magnetic flux within the soft magnetic element is different than the flux at the second position.Type: GrantFiled: July 23, 2012Date of Patent: April 22, 2014Assignee: EnOcean GmbHInventor: Frank Schmidt
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Patent number: 8698094Abstract: A permanent magnetic lens array for charged-particle focusing includes a first sheet of soft magnetic material, wherein the first sheet of soft magnetic material includes a plurality of snorkel cone protrusions arranged in an array pattern, wherein each snorkel cone is axially symmetric and includes an opening passing from a first surface of the first sheet of soft magnetic material to a second surface of soft magnetic material, and a plurality of permanent magnetic elements, wherein each permanent magnetic element is axially symmetric and arranged concentrically with a snorkel cone of the first sheet of soft magnetic material, wherein the snorkel cones of the first sheet of soft magnetic material and the plurality of permanent magnetic elements are configured to form a plurality of magnetic lenses, wherein each magnetic lens has a magnetic field with an axial component oriented perpendicular to the first surface of the soft magnetic material.Type: GrantFiled: July 20, 2011Date of Patent: April 15, 2014Assignee: KLA-Tencor CorporationInventors: Christopher Sears, Mehran Nasser-Ghodsi, Khashayar Shadman
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Patent number: 8689800Abstract: A magnetic navigation control apparatus includes a sensing unit, a control unit and a magnetic field generating unit. The sensing unit generates a sensing signal according to the position of a magnetic element. The control unit is electrically connected with the sensing unit and generates a first control signal and a second control signal according to the sensing signal. The magnetic field generating unit is electrically connected with the control unit and has a housing, a plurality of interpoles, and a plurality of short poles. The interpoles are disposed in the housing. The short poles are disposed between the interpoles evenly. The magnetic field generating unit generates a navigation signal according to the first control signal, thereby controlling the magnetic element to move in at least one direction within a target region. The magnetic navigation control apparatus has greater magnetic navigation effects, and can thus reduce the cost.Type: GrantFiled: August 15, 2011Date of Patent: April 8, 2014Assignees: National Cheng Kung University, Delta Electronics, Inc.Inventors: Ray-Lee Lin, Sheng-Fu Hsiao
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Patent number: 8686819Abstract: A magnetic holding device is adapted for holding a mask during processing of a substrate. The magnetic holding device includes a substrate carrier which is adapted for receiving the substrate to be processed. The substrate carrier includes a permanent magnet adapted for generating a first magnetic field for holding the mask. Furthermore, the substrate carrier includes a solenoid which is adapted for generating a second magnetic field adapted for at least partially compensating the first magnetic field. In case the first magnetic field is compensated, at least partially, by means of the second magnetic field, the mask is released from the substrate carrier.Type: GrantFiled: June 18, 2010Date of Patent: April 1, 2014Assignee: Applied Materials, Inc.Inventors: Uwe Schuessler, Stefan Bangert, Heike Landgraf
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Patent number: 8686818Abstract: A microparticle includes an oblong flexible tail able to propel the microparticle in a solution along a trajectory using beats transverse to the trajectory, the tail including at least one magnetic element such that the magnetic element causes beats of the tail under the action of an external alternating magnetic field non-collinear with the trajectory and a head mechanically connected to a proximal end of the tail. The microparticle includes at least one layer of material formed from one piece and including the tail and the head, the dimensions and/or shape of the head being selected such that the beats of the proximal end of the tail are limited with respect to the beats of the distal end of the tail and such that the head does not perform a complete revolution around an axis parallel to the trajectory under the effect of the external alternating magnetic field.Type: GrantFiled: September 17, 2010Date of Patent: April 1, 2014Assignees: Commissariat a l'energie atomique et aux energies alternatives, Centre National de la Recherche ScientifiqueInventors: Bernard Dieny, Heélène Joisten, Philippe Sabon
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Patent number: 8674797Abstract: There is provided a magnetic field generator in which separation and dislocation of permanent magnets from their permanent magnet groups is prevented easily and reliably for a long period of time without sacrificing productivity. A magnetic field generator 10 includes a permanent magnet group 14a which is provided on a plate yoke 12a; a pole piece 16a which is provided in a first main surface of the permanent magnet group 14a, leaving an exposed region 18b thereon; a frame-like member 34 which is provided on the plate yoke 12a to surround the permanent magnet group 14a; and a flange-shaped member 36 which is provided in the pole piece 16a to cover the exposed region 18b. Presser bolts 44 are threaded into the frame-like member 34 and press an outer circumferential surface 18a of the permanent magnet group 14a directly or via insertion members 42.Type: GrantFiled: February 26, 2010Date of Patent: March 18, 2014Assignee: Hitachi Metals, Ltd.Inventors: Masaaki Aoki, Michiaki Kishimoto
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Patent number: 8662187Abstract: A linear motor activator for a downhole safety valve including a permanent magnet carrier; a plurality of permanent magnets mounted to the permanent magnet carrier; a coil carrier disposed in magnetic field proximity to the permanent magnet carrier; and a plurality of coils mounted to the coil carrier, one of the permanent magnet carrier and the coil carrier being movable relative to the other of the permanent magnet carrier and coil carrier, and being connected to a component of a downhole safety valve and method.Type: GrantFiled: August 13, 2009Date of Patent: March 4, 2014Assignee: Baker Hughes IncorporatedInventors: Gary Lake, Michael J. May, Priyesh Ranjan, Douglas Murray, Michael Rainone, Samuel Sackett, Talbot Presley
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Patent number: 8651915Abstract: One embodiment may take the form of a flexible creation animated by magnets or electromagnets brought near the flexible creation. Iron particles blended with a flexible material of the flexible creation may interact with the magnetic fields generated by the magnets, causing the object or portions of the object to move toward or away from the controlling magnets, thereby animating the object.Type: GrantFiled: July 2, 2012Date of Patent: February 18, 2014Assignee: Disney Enterprises, Inc.Inventors: Holger Irmler, Philip Jackson
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Publication number: 20140043124Abstract: The present invention provides an artificial electromagnetic material, comprising at least one material sheet layer; wherein each material sheet layer is provided with a first substrate and a second substrate which are oppositely arranged; and a plurality of artificial microstructures are attached on a surface, facing the second substrate, of the first substrate. The first substrate and the second substrate on both sides of the artificial microstructure are in such tight contact therewith that the number of electric field lines passing through the substrates is increased and the equivalent permittivity of the artificial electromagnetic material is effectively improved.Type: ApplicationFiled: October 27, 2011Publication date: February 13, 2014Applicant: KUANG-CHI INNOVATIVE TECHNOLOGY LTD.Inventors: Ruopeng Liu, Lin Luan, Chaofeng Kou, Fanglong He, Zhiya Zhao, Jincai Ye
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Publication number: 20140035708Abstract: Magnetic actuators are provided having a substrate, a membrane layer directly or indirectly applied on a surface of the substrate, in which the membrane layer consists of a matrix of elastic polymer material, in which nanoparticles of magnetic material, capable of undergoing a dynamic effect under the action of a magnetic field, are dispersed, and at least one magnetic field generator suitable to generate a magnetic field acting on the membrane layer, in which the magnetic field generator is directly or indirectly arranged on the surface of the substrate, or within the substrate.Type: ApplicationFiled: April 19, 2012Publication date: February 6, 2014Applicant: FONDAZIONE INSTITUTO ITALIANO DI TECNOLOGIAInventors: Athanasia Athanasiou, Massimo De Vittorio, Despina Fragouli, Simona Petroni, Gabriele Nanni, Massimiliano Amato, Daniela Lorenzo, Roberto Cingolani
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Patent number: 8643453Abstract: A cylindrical bonded magnet is provided which is multipolar-magnetized in the axial direction and can be produced with high productivity. The cylindrical bonded magnet includes magnetic powder and resin. The cylindrical bond magnet is an integrally formed member. The cylindrical bond magnet is magnetized so that a plurality of N and S poles are alternately provided in the axial direction. In the cylindrical bonded magnet, a totally even number of at least four N and S poles are alternately provided. The surface magnetic flux density distribution has a substantially sinusoidal wave with the both ends of the sinusoidal wave corresponding to nodes when the surface magnetic flux of the cylindrical bonded magnet is measured as viewed from the side surface of the cylindrical bond magnet along the axial direction.Type: GrantFiled: December 3, 2009Date of Patent: February 4, 2014Assignee: Nichia CorporationInventors: Kohei Ihara, Michiya Kume, Muneo Yamamoto
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Publication number: 20140028424Abstract: A magnetic field manipulation apparatus comprises a metamaterial structure, the metamaterial structure including a multilayer stack of metamaterial layers, each metamaterial layer including a substrate supporting one or more conductive loops. The metamaterial structure may be configured to redirect the magnetic flux around the metamaterial structure, and in some examples concentrated into a gap between two adjacent metamaterial structures. An apparatus may further include a magnetic field source such as an electromagnet.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Ercan Mehmet Dede, Jaewook Lee
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Patent number: 8629729Abstract: A nano-oscillator magnetic wave propagation system has a group of aggregated spin-torque nano-oscillators (ASTNOs), which share a magnetic propagation material. Each of the group of ASTNOs is disposed about an emanating point in the magnetic propagation material. During a non-wave propagation state of the nano-oscillator magnetic wave propagation system, the magnetic propagation material receives a polarizing magnetic field. During a wave propagation state of the nano-oscillator magnetic wave propagation system, each of the group of ASTNOs initiates spin waves through the magnetic propagation material, such that a portion of the spin waves initiated from each of the group of ASTNOs combine to produce an aggregation of spin waves emanating from the emanating point. The aggregation of spin waves may provide a sharper wave front than wave fronts of the individual spin waves initiated from each of the group of ASTNOs.Type: GrantFiled: July 21, 2011Date of Patent: January 14, 2014Assignee: New York UniversityInventors: Frank C. Hoppensteadt, Andrew D. Kent, Ferran Macià Bros
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Publication number: 20130293326Abstract: A cylindrical magnet assembly has at least one coil mounted on a former, assembled to a bore tube by a number of inserts within holes formed in a material of the former. Each insert can bear on a dished radially outer extremity of a radially-outwardly directed protrusion or each insert can bear on a radially outer concave surface of a radially-inwardly directed protrusion.Type: ApplicationFiled: June 3, 2013Publication date: November 7, 2013Inventor: Russell Peter Gore
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Patent number: 8576035Abstract: A magnetic field generating module includes a housing, a plurality of interpoles, a plurality of short poles and a plurality of windings. The housing has an annular section and an inner side. The interpoles disposed on the inner side in the housing are arranged around an inner periphery of the annular section with the same intervals. The short poles are disposed on the inner side in the housing and distributed between the interpoles evenly. A first interval is formed between the adjacent short poles, and a second interval equal to the first interval is formed between each of the interpoles and the adjacent short pole. The windings are respectively disposed corresponding to the interpoles and located between the interpoles and the short poles. The magnetic field generating module of the invention has more concentrated magnetic lines so as to prompt the magnetic flux density and the magnetic force.Type: GrantFiled: August 15, 2011Date of Patent: November 5, 2013Assignees: National Cheng Kung University, Delta Electronics, Inc.Inventors: Ray-Lee Lin, Sheng-Fu Hsiao
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Patent number: 8576033Abstract: An electromagnet may comprise a pole piece and a coil assembly. The pole piece may be monolithically formed of a magnetically susceptible material and have a channel structure and a first flange member. The channel structure may have an annular inner side wall, an annular outer side wall and an annular end wall that fixedly couples the inner and outer side walls to one another on a first axial end of the pole piece. The channel structure may be open on a second axial end of the pole piece that is opposite the first axial end. The first flange member may be coupled to an end of one of the inner and outer side walls on the second axial end and extend radially from the channel structure. The coil assembly may be fixedly coupled to the channel structure between the inner and outer side walls.Type: GrantFiled: August 11, 2010Date of Patent: November 5, 2013Assignee: Litens Automotive PartnershipInventors: Zbyslaw Staniewicz, Christiaan Vander Ploeg, Gary J. Spicer
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Patent number: 8570042Abstract: System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/?10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation.Type: GrantFiled: August 29, 2008Date of Patent: October 29, 2013Assignee: The Regents of the University of CaliforniaInventors: Alexander Pines, Jeffrey Paulsen, Louis S. Bouchard, Bernhard Blumich
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Patent number: 8570127Abstract: A high magnetic field superconducting magnet system with large crossing warm bore is disclosed, a superconducting coil thereof includes a low temperature superconducting coil and a high temperature superconducting coil. The superconducting coils are connected to a thermal shield and a flange of a low temperature container by a supporting drawbar, thus the superconducting coils as a whole are supported inside the low temperature container. A thermal switch is connected to a primary cold head and a secondary cold head of the cryocooler. The secondary cold head of the cryocooler is connected to a magnet-reinforced supporting flange at the two ends of the low temperature superconducting coil and the high temperature superconducting coil by a cold conduction strip. The superconducting magnet system has a room temperature bore in horizontal direction and a room temperature bore in vertical direction.Type: GrantFiled: July 1, 2010Date of Patent: October 29, 2013Assignee: Institute of Electrical Engineering, Chinese Academy of SciencesInventors: Qiuliang Wang, Xinning Hu, Yinming Dai, Baozhi Zhao, Luguang Yan, Shousen Song, Housheng Wang, Yuanzhong Lei, Hui Wang
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Patent number: 8565845Abstract: The invention offers a superconducting coil that has the shape of a pancake formed by winding a superconducting conductor. The superconducting conductor is composed of a tape-shaped (Bi, Pb)2223-based superconducting wire and a tape-shaped thin-film RE123-based superconducting wire that are electrically connected in parallel with each other. The coil generates only a low voltage in the steady-operation state, limits the generated voltage to a low level even in a state where an external disturbance enters for some reason, and is therefore less susceptible to quenching. Consequently, the coil can be operated stably in both states. The invention also offers a superconducting conductor to be used to form the coil.Type: GrantFiled: February 6, 2008Date of Patent: October 22, 2013Assignee: Sumitomo Electric Industries, Ltd.Inventors: Shinichi Kobayashi, Tetsuyuki Kaneko
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Patent number: 8531081Abstract: A method for producing a rotor assembly for a rotating electrical machine, especially an alternator, the rotor assembly including two rotors defining between themselves at least one inter-rotor space suitable for accommodating at least one magnet structure, which includes at least one index mark. The magnet structure is positioned against at least two of the rotors, using the index mark to identify a direction of orientation of the magnetization of the magnet structure.Type: GrantFiled: November 24, 2008Date of Patent: September 10, 2013Assignee: Valeo Equipements Electriques MoteurInventors: Olivier Gas, Pierre-Yves Bilteryst, Alexandre Pfleger
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Publication number: 20130222092Abstract: A thin-film magnetic oscillation element includes a pinned magnetic layer, a free magnetic layer, a nonmagnetic spacer layer provided between the pinned magnetic layer and the free magnetic layer, and a pair of electrodes, in which the easy axis of magnetization of the pinned magnetic layer lies in an in-plane direction of the plane of the pinned magnetic layer, and the easy axis of magnetization of the free magnetic layer lies in a direction normal to the plane of the free magnetic layer. Preferably, the relationship between the saturation magnetization Ms and the magnetic anisotropy field Ha of the free magnetic layer satisfies 1.257 Ms<Ha<12.57 Ms. More preferably, the free magnetic layer is composed of an alloy or a stacked film containing at least one element selected from Co, Ni, Fe, and B.Type: ApplicationFiled: February 27, 2013Publication date: August 29, 2013Applicant: TDK CORPORATIONInventor: TDK CORPORATION
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Patent number: 8510933Abstract: Provided is a field pole magnet to be installed in a rotor or a stator of a permanent magnet rotary machine, the field pole magnet including: multiple magnet pieces (31 to 34) formed by breaking and dividing a single permanent magnet; and at least one magnet-piece holding member (40) configured to hold these magnet pieces (31 to 34).Type: GrantFiled: September 29, 2009Date of Patent: August 20, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Ryou Murakami, Hideki Nishimura, Nobuo Kino, Tomihito Hashimoto
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Publication number: 20130207001Abstract: A septum magnet includes a yoke that can be separated at the approximately center portion thereof in the axis direction; a septum coil; a return coil; and a vacuum duct that is inserted between the septum coil and the return coil. The septum coil is formed in such a way as to be able to be separated into a first portion and a second portion in response to separation of the yoke; and in a space between the septum coil and the vacuum duct, there is provided an auxiliary coil, in two portions of which, corresponding to the first portion and the second portion of the septum coil, electric currents flow in opposite direction to each other in a circumferential direction.Type: ApplicationFiled: February 13, 2012Publication date: August 15, 2013Applicant: Mitsubishi Electric CorporationInventors: Kengo Sugahara, Katsuhisa Yoshida, Toshihiro Otani, Shinichi Masuno, Fumihiko Kashima