For Magnetizing Or Demagnetizing Patents (Class 335/284)
  • Patent number: 9685850
    Abstract: A voice coil motor 2 using a Dual Halbach Magnet Array has an outer magnet array 5 and an inner magnet array 6, wherein the inner magnet array 6 comprises axially magnetized magnets 6A, 6C and 6E and radially magnetized magnets 6B and 6D. Each of the axially magnetized magnets 6A, 6C and 6E of an inner magnet array 6 is formed of a monolithic magnet having ring-shape, whereas each of the radially magnetized magnets 6B and 6D of the inner magnet array 6 is formed of a plurality of split magnets divided in a circumferential direction. A fixing means 13 is provided to fix the radially magnetized magnets 6B and 6D and the axially magnetized magnets 6A, 6C and 6E of the inner magnet array 6 in an axially clamped manner.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 20, 2017
    Assignee: SANTEST CO., LTD.
    Inventor: Kyoizumi Kozo
  • Patent number: 9636600
    Abstract: A magnetic tile construction set is disclosed that may be used to construct extended 3-dimensional structures. In one embodiment, plastic magnets are attached to multiple edges of a lightweight core. The magnets have a width and length comparable to the thickness of the core and a length that is an order of magnitude longer than the thickness of the core. Tiles may be attached to one another at the tile edges through magnetic forces that do not vary by more than a factor of two over the range of angles from 45 degrees to 180 degrees.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: May 2, 2017
    Assignee: APEX TECHNOLOGIES, INC.
    Inventors: Charles A. Rudisill, Daniel John Whittle
  • Patent number: 9607745
    Abstract: An undulator with a compact construction is provided that reduces weight, complexity and cost. The compact undulator system and methods provides mechanical integrity without compromising magnetic field quality.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: March 28, 2017
    Assignee: Cornell University
    Inventor: Alexander Temnykh
  • Patent number: 9601251
    Abstract: At least two partial magnets mechanically connected to each other. The length of each partial magnet runs in the main magnetisation direction of each partial magnet and/or in the main direction in which a partial magnet can be magnetised or in which its magnetisation is intended, and defines a first side and a second side as opposed regions at the ends of the partial magnet in respect of its length The at least two partial magnets are arranged in sequence in respect of their lengths and connected to each other. Deviations in the direction of the magnetisation and/or magnetisability of the first partial magnet deviating from the main magnetisation direction and/or main direction of magnetisability reduce and/or substantially compensate for the deviations in the direction of the magnetisation and/or magnetisability of the other or of the adjacent partial magnet deviating from the main magnetisation direction and/or main direction of magnetisability.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 21, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventor: Frank Grunwald
  • Patent number: 9583997
    Abstract: The present invention relates to a device for magnetizing and assembling an electrical machine comprising a stator and a rotor with at least one permanent magnet. The device includes a magnetizer unit for magnetizing the at least one permanent magnet of the rotor, a rotor load unit, and a translation unit for translating the rotor from the magnetizer unit to a rotor load unit for inserting the rotor into the stator. The invention also relates to a method for magnetizing and assembling an electrical machine comprising a stator and a rotor with at least one permanent magnet at a magnetizing unit.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 28, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventor: Peter Mongeau
  • Patent number: 9508479
    Abstract: A method for in-situ magnetization of a generator rotor is provided. The generator has a stator and the rotor is located inside the stator. An air gap is formed between an outer radial portion of the rotor and an inner radial portion of the stator. The rotor has a plurality of excitation windings and a plurality of permanent magnets. The method includes the step of applying a current to the excitation windings, and the current is greater than a normal excitation current. A maintaining step maintains the current for a time period sufficient to magnetize the permanent magnets. The magnetization of the permanent magnets occurs on the rotor in-situ and while the rotor is inside the stator.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: November 29, 2016
    Assignee: General Electric Company
    Inventor: Eric Steven Buskirk
  • Patent number: 9455078
    Abstract: A non-linear multi-pole magnetization pattern is used to magnetize flexible magnetizable sheets. The non-linear pattern is produced by a magnetizing mechanism having a set of angled magnets. Shifting of magnetic sheet positions in a stack is eliminated by randomizing the positions of the multiple magnetic poles in such manner that as the magnetic sheets are stacked, each sheet will have a multi-pole configuration different from the adjacent sheets below and above it on the stack.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: September 27, 2016
    Assignee: Magnum Magnetics Corporation
    Inventors: Joseph B. Stout, Douglas William Rummer, Derek Allen
  • Patent number: 9446820
    Abstract: Mooring device for mooring a ship and comprising a base, a movable arm construction supported by the base, and at least one magnet mounted in a frame, which frame is supported by the movable arm construction, wherein the frame is provided with at least one leaf spring, and at least one magnet is supported by the at least one leaf spring. Further there is a hinge connected to the movable arm construction, and the frame comprises two beams on opposite sides of the hinge, wherein each beam supports at least one leaf spring and a magnet mounted on said at least one leaf spring.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: September 20, 2016
    Assignee: EUROPEAN INTELLIGENCE B.V.
    Inventors: Johan Marlon Boerleider, Gerardus Antonius Jozef Mampaeij, Constantinus Wilhelmus Leenders, Wouter van Reenen
  • Patent number: 9404776
    Abstract: A system and method for tailoring a polarity transition of a magnetic structure is provided that involves printing one or more reinforcing maxels alongside one side or both sides of a polarity transition boundary between a first polarity region of the magnetic structure having a first polarity and a second polarity region of the magnetic structure having a second polarity, where printing reinforcing maxels alongside the polarity transition boundary improves the magnetic field characteristics of the polarity transition.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: August 2, 2016
    Assignee: Correlated Magnetics Research, LLC.
    Inventors: Larry W. Fullerton, Jacob S. Zimmerman, Robert S. Evans, David P. Machado, Jason N. Morgan, Mark D. Roberts
  • Patent number: 9275783
    Abstract: A system and a method are described herein for demagnetizing a region of a magnetic structure. In one embodiment, the system comprises: (a) a pulsed magnetizer; and (b) at least one magnetizing coil that receives a sequence of discrete current with continually decreasing current values from the pulsed magnetizer and outputs a sequence of discrete magnetizing fields with continually decreasing field strengths to overwrite and at least partly demagnetize the region of the magnetic structure. The at least one magnetizing coil is located adjacent to the region of the magnetic structure.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: March 1, 2016
    Assignee: CORRELATED MAGNETICS RESEARCH, LLC.
    Inventors: Larry W. Fullerton, Mark D. Roberts, Hamilton Grant Moore
  • Patent number: 9269484
    Abstract: An electromagnet comprising a ferromagnetic yoke which comprises a yoke. Mutually opposing first and second pole pieces are provided. The first pole piece is provided with a planar coil having a first side facing the yoke and a second side facing the yoke. A balancing member is arranged on the second side of the planar coil to counterbalance the attractive force between the planar coil and the yoke. The other pole piece may also be provided with a corresponding balancing member.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: February 23, 2016
    Assignee: Emscan Limited
    Inventors: John Vincent Mario McGinley, Mihailo Ristic, Colin Bowden Besant, Ian Robert Young
  • Patent number: 9214268
    Abstract: Method, system, and apparatus for optimizing kinematics of a magnetic latch having a magnetic element is disclosed.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 15, 2015
    Assignee: Apple Inc.
    Inventors: John C. DiFonzo, Fabio T. Campos, Jonathan E. Borkowski, Chee How Chong, Matthew W. Blum, William A. Tashman, Michelle R. Goldberg, Stefano Tizianel, Noemi Novello
  • Patent number: 9156709
    Abstract: A magnetic resonator is provided which has a support structure and a plurality of roller assemblies mounted thereto for rotation about respective axes of rotation which are generally parallel one to another. Drive means are coupled to the roller assemblies to rotate each of the roller assemblies about its respective axis of rotation relative to the support structure. Each roller assembly houses a plurality of magnets disposed along respective axes of the roller assemblies. The plurality of magnets are grouped in a plurality of first and second arrangements with a first arrangement being interspersed between a pair of second arrangements. At least one of the first and second arrangements incorporates a pattern or shape based on sacred geometry.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: October 13, 2015
    Inventor: Kim Shallcross
  • Publication number: 20150137919
    Abstract: A system for producing magnetic structures includes multiple magnetizing circuits and multiple inductor coils used to magnetically print multiple magnetic sources onto multiple pieces of magnetizable material moving on a motion control system. The multiple inductor coils may be configured on one or more gantries. The motion control system may be a conveyor system.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 21, 2015
    Applicant: CORRELATED MAGNETICS RESEARCH, LLC
    Inventors: Larry W. Fullerton, Mark D. Roberts
  • Publication number: 20150130571
    Abstract: A magnetization apparatus for a magnet of a magnetic encoder. The magnetization apparatus is configured to alternately form a positive and a negative magnetization areas by moving a magnetic member along a route penetrating a gap of a magnetization yoke while alternately generating positive and negative magnetic fields in the gap of the magnetization yoke.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Masanori Tomioka
  • Patent number: 9013257
    Abstract: For simplifying the handling of magnet bodies during magnetization and for inserting the magnetized magnet bodies into a component of a magnetic system such as an electromagnetic drive, a magnetic travel or angle system or the like, an apparatus is proposed which includes a plurality of cavities for receiving at least one magnet body respectively, wherein the magazine comprises a plurality of interconnected and mutually movable magazine elements. The invention further relates to a method for holding magnet bodies during their magnetization and for inserting the magnetized magnet bodies into a component of a magnetic system and to a magnet body handling system.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: April 21, 2015
    Assignee: Magnet-Physik
    Inventor: Dietrich Alfred Steingroever
  • Publication number: 20150099432
    Abstract: Embodiments described herein generally relate to devices and methods for magnetic-responsive chemical mechanical polishing. In one embodiment, a device including a support with one or more magnetic field generators formed therein is provided. The magnetic field generators can produce at least one magnetic field. A magnetic-responsive composite is positioned in magnetic connection with the magnetic field generators. When the magnetic-responsive composite receives the magnetic field from the magnetic field generators, the magnetic-responsive composite changes shape.
    Type: Application
    Filed: September 11, 2014
    Publication date: April 9, 2015
    Inventors: Uday MAHAJAN, Rajeev BAJAJ, Fred Conrad REDEKER, Abdul Wahab MOHAMMED
  • Publication number: 20150091680
    Abstract: A method of magnetizing a multi-pole magnet includes the steps of obtaining a magnetization coil having a magnetization zone and a central axis, and positioning a magnet within the magnetization zone. The method also includes positioning at least one pair of shield bodies including a conductive material proximate the first and second surfaces of the magnet, with the shield bodies being aligned together to cover both sides of at least a first region of magnet and expose both sides of at least a second region of the magnet. The method further includes energizing the magnetization coil to generate an applied magnetic field within the magnetization zone that is sufficient to induce eddy currents in the at least one pair of shield bodies and to magnetize the exposed second region of the magnet.
    Type: Application
    Filed: January 6, 2014
    Publication date: April 2, 2015
    Applicant: Apple Inc.
    Inventor: Jean-Marc GERY
  • Publication number: 20150091404
    Abstract: A rotor for a rotating electric machine includes a rotor core including a plurality of laminated steel plates; a permanent magnet fixed to an outer peripheral surface of the rotor core, the permanent magnet having a length in an axial direction less than that of the rotor core; and an adhesive member disposed on a region of the outer peripheral surface of the rotor core between an end of the permanent magnet in the axial direction and an end of the rotor core in the axial direction.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Kenji FUNAKOSHI
  • Publication number: 20150070117
    Abstract: The aim is to improve the demagnetisation of ferromagnetic components by means of simple enhancements of a demagnetising device in such a manner that, in spite of the demagnetisation at approximately room temperature, ferromagnetic components with vanishingly low residual magnetism, as was previously only achievable by means of thermal demagnetisation, are achieved. This is achieved in that a chamber with walls made from magnetically highly-permeable ferromagnetic material for shielding from external interference fields, for example the magnetic field of the Earth, is used in the demagnetising coil of a demagnetising device, whereby an interference-field-free chamber interior is pushed with a reduction of the interference field strength in the chamber interior to such a small magnetic interference field, that the residual magnetism at the treated objects has a lower value after demagnetisation than the interference field outside of the chamber space.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventor: Albert Maurer
  • Publication number: 20150061800
    Abstract: A sheet-feeder system for multiple feeding of magnetizable sheets from a stack through a portable magnetizer designed for on-site use, enclosed in a portable case which is hand-carryable. A sheet advancer advances single magnetizable sheets from the stack in a stack positioner. The sheet advancer includes a single-sheet separator configured to separate single magnetizable sheets from the stack during advancement. Magnetic attraction between a magnetizable sheet and a magnetic field generated by a sheet magnetizer configured to permanently magnetize single magnetizable sheets as they are advanced by the sheet advancer assists the sheet advancer to advance the single magnetizable sheets from the stack through the sheet magnetizer.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventor: Richard D. Lefevre
  • Patent number: 8970333
    Abstract: The present invention relates a device for magnetizing a rotor of an electrical machine with a power rating of at least 1 MW, wherein the rotor comprises permanent magnet material, said device comprising a yoke with an electromagnetic coil arranged to produce a pulsed magnetic field for magnetizing the permanent magnet material, wherein the magnetic field is sufficient to magnetize a permanent magnetic pole wherein the rotor and yoke is in a fixed relation to each other. The invention also relates to a method for magnetization of a rotor with permanent magnets for an electrical machine.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: March 3, 2015
    Assignee: Vestas Wind Systems A/S
    Inventor: Peter Mongeau
  • Publication number: 20150022298
    Abstract: An improved system and method for producing magnetic structures involves a first magnetizing circuit having a first inductor coil used to magnetically print a first magnetic source onto a magnetizable material and a second magnetizing circuit having a second inductor coil used to magnetically print a second magnetic source onto said magnetizable material.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Applicant: CORRELATED MAGNETICS RESEARCH, LLC
    Inventor: Larry W. Fullerton
  • Publication number: 20150015353
    Abstract: The embodiments disclose an alternating current (AC) erase process configured to cancel out existing polarity of stack magnetic features on both sides of the stack and an AC reset process configured to initialize the polarity of the device stack magnetic features of both sides of a stack configured to create a uniform polarity.
    Type: Application
    Filed: October 16, 2013
    Publication date: January 15, 2015
    Applicant: Seagate Technology LLC
    Inventors: Stephen Keith McLaurin, Weilu Xu
  • Publication number: 20140368303
    Abstract: A method of magnetization reversal, time stable ferrimagnetic material, a product and a domain comprising said material, a system for magnetization reversal, and information storage. Therein, a ferrimagnetic material is one in which magnetic moments of the atoms on different sublattices are opposed, as in antiferromagnetism; however, in ferrimagnetic materials, the opposing moments are unequal and a spontaneous magnetization remains.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 18, 2014
    Inventors: Theodorus Henricus Maria Rasing, Johan Mentink, Andrei Kirilyuk, Alexey Kimel, Richard Francis Llewelyn Evans, Roy William Chantrell, Thomas Andrew Ostler, Joseph Barker
  • Publication number: 20140354383
    Abstract: 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: Application
    Filed: August 16, 2014
    Publication date: December 4, 2014
    Inventor: Larry W. Fullerton
  • Publication number: 20140354382
    Abstract: 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: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Inventors: Larry W. Fullerton, Mark D. Roberts
  • Publication number: 20140350235
    Abstract: A novel method for attaching oligonucleotides to a paramagnetic solid support is disclosed. Conventional methods of attachment require that oligonucleotides be pre-synthesized with specific end modifications, which is laborious and expensive. Instead, we attached oligonucleotides to paramagnetic beads by direct synthesis of the oligonucleotides on the surface of the beads. An external magnet was used to hold the paramagnetic beads in place during solid-phase synthesis. A magnetic force was applied directly to the beads to prevent their loss, in particular, during reagent purge-to-waste steps that involved high-pressure drain or vacuum. This method can be adapted for use in any laboratory working with conventional synthesis automation, and can be employed, for example, with single columns and multi-well titer plates.
    Type: Application
    Filed: May 18, 2014
    Publication date: November 27, 2014
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Michael S. Akhras, Michael A. Jensen
  • Patent number: 8878638
    Abstract: 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: Grant
    Filed: February 12, 2010
    Date of Patent: November 4, 2014
    Assignee: Asociacion-Centro de Investigacion Cooperativa en Nanociencias-CIC Nanogune
    Inventors: Ricardo Bertacco, Matteo Cantoni, Marco Donolato, Marco Gobbi, Stefano Brivio, Paolo Vavassori, Daniela Petti
  • Patent number: 8866572
    Abstract: A magnetization apparatus and process for producing thin magnetized sheets and rolls. It has permanent magnet pieces oriented and magnetized perpendicular to the other components of soft pole piece surfaces. This orientation permits the adjustably controlled field strength of the magnetic field produced. By varying the number of pole pieces and the corresponding permanent magnets the magnetic coupling and magnetic field strength varies. This field variance shifts the aligned poles into a “random orientation”. Therefor the alignment of like poles on the consecutive sheets is avoided and the sheets can lay flat and not be repelled by aligned poles.
    Type: Grant
    Filed: February 18, 2012
    Date of Patent: October 21, 2014
    Inventor: A. Todd McMullen
  • Patent number: 8844119
    Abstract: A technique for fixing permanent magnets of a drive motor rotor for a vehicle may include inserting permanent magnets into a plurality of permanent magnet insertion holes that are formed at a predetermined distance from each other in a circumferential direction of a rotor core, applying magnetic force to the rotor core with a magnetic force generator, such that the magnetic force is formed in an axial or a radial direction of the rotor core to instantly fix the position of the permanent magnets, and adding a fixation material to the permanent magnet insertion holes to fix the permanent magnets.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 30, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jaewon Ha, Jaeyoung Kie, Jungwoo Lee
  • Publication number: 20140287534
    Abstract: The present invention discloses highly sensitive magnetic heterojunction device consisting of a composite comprising ferromagnetic (La0.66Sr0.34MnO3) LSMO layer with ultra-thin ferrimagnetic CoFe2O4 (CFO) layer capable of giant resistive switching (RS) which can be tuned at micro tesla magnetic field at room temperature.
    Type: Application
    Filed: June 25, 2012
    Publication date: September 25, 2014
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Satishchandra Balkrishna Ogale, Dipankar Das Sarma, Abhimanyu Singh Rana, Vishal Prabhakar Thakare, Anil Kumar Puri
  • Patent number: 8836458
    Abstract: A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has oppositely polarized magnetically conditioned regions with initial directions of magnetization that are perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: September 16, 2014
    Assignee: Methode Electronics, Inc.
    Inventor: Seong-Jae Lee
  • Publication number: 20140253270
    Abstract: A magnetizer for a tissue-penetrating medical tool such as a needle, cannula, stylet, or catheter consist of a magnetic flux generator which generates a magnetic field in a tool-receiving space. The tool can be passed through or into and out of the space to magnetise it. Optionally the space can be defined by a disposable plastics tube, with a closed end, so that a defined length of the tool is magnetised. The magnetic flux generator can be a permanent magnet or electromagnet. Alternatively a conveyor belt can be used to transport a tissue-penetrating medical tool through a magnetic field generated by an electromagnet with the belt and the electromagnetic being controlled in response to an optical sensor for detecting the position of the tissue-penetrating medical tool. The device is suitable for magnetising tools for use in surgical procedures where the tool is to be magnetically tracked.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Applicant: eZono AG
    Inventors: Robert NICHOLLS, Eliseo Sobrino
  • Patent number: 8816805
    Abstract: 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: Grant
    Filed: February 8, 2014
    Date of Patent: August 26, 2014
    Assignee: Correlated Magnetics Research, LLC.
    Inventors: Larry W. Fullerton, Mark D. Roberts
  • Patent number: 8810347
    Abstract: A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 19, 2014
    Assignee: Wilic S.AR.L
    Inventors: Thomas Kaessner, Alessandro Fasolo
  • Patent number: 8810348
    Abstract: A system and method for tailoring a polarity transition of a magnetic structure is provided that involves printing one or more reinforcing maxels alongside one side or both sides of a polarity transition boundary between a first polarity region of the magnetic structure having a first polarity and a second polarity region of the magnetic structure having a second polarity, where printing reinforcing maxels alongside the polarity transition boundary improves the magnetic field characteristics of the polarity transition.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: August 19, 2014
    Assignee: Correlated Magnetics Research, LLC.
    Inventors: Larry W. Fullerton, Jacob S. Zimmerman, Robert S. Evans, Mark D. Roberts
  • Publication number: 20140197910
    Abstract: A magnetoelectric composite device having a free (i.e. switchable) layer of ferromagnetic nanocrystals mechanically coupled a ferroelectric single crystal substrate is presented, wherein application of an electrical field on the composite switches the magnetic state of the switchable layer from a superparamagnetic state having no overall net magnetization to a substantially single-domain ferromagnetic state.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 17, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Sarah H. Tolbert, Gregory P. Carman, Scott Keller, Laura Schelhas, Hyungsuk Kim, Joshua Hockel
  • Patent number: 8766753
    Abstract: A magnetizer including at least one reconfigurable magnetic flux guide coil is disclosed. A method of magnetizing a permanent magnet in-situ a mechanical member is also disclosed.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: July 1, 2014
    Assignee: General Electric Company
    Inventors: Jan Erich Hemmelmann, Michal-Wolfgang Waszak, Tiziana Bertoncelli, Alexander Felix Fiseni
  • Patent number: 8760250
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: June 24, 2014
    Assignee: Correlated Magnetics Rsearch, LLC.
    Inventors: Larry W. Fullerton, Mark D. Roberts, James L. Richards
  • Patent number: 8754733
    Abstract: Portable magnetizer systems designed for on-site use, related to magnetizing magnetizable sheets, enclosed in a portable case which is hand-carryable.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 17, 2014
    Assignee: Magnum Magnetics Corporation
    Inventor: Trygve Paul Koren
  • Publication number: 20140152407
    Abstract: 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: Application
    Filed: February 8, 2014
    Publication date: June 5, 2014
    Applicant: Correlated Magnetics Research, LLC.
    Inventors: Larry W. Fullerton, Mark D. Roberts
  • Patent number: 8736407
    Abstract: 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: Grant
    Filed: December 3, 2009
    Date of Patent: May 27, 2014
    Assignee: Magnifye Limited
    Inventor: Timothy Arthur Coombs
  • Patent number: 8729996
    Abstract: A carriage for high magnetic field environments includes a first work-piece holding means for holding a first work-piece, the first work-piece holding means being disposed in an operable relationship with a work-piece processing magnet having a magnetic field strength of at least 1 Tesla. The first work-piece holding means is further disposed in operable connection with a second work-piece holding means for holding a second work-piece so that, as the first work-piece is inserted into the magnetic field, the second work-piece is simultaneously withdrawn from the magnetic field, so that an attractive magnetic force imparted on the first work-piece offsets a resistive magnetic force imparted on the second work-piece.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: May 20, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Bart L. Murphy
  • Patent number: 8723628
    Abstract: Described herein are shaped coil TMS electromagnets formed by two bent magnetic coil loops joined at a vertex having an angle between the outer coil regions of the coils that is typically less than 120 degrees (e.g., between about 45 and about 70 degrees, 60 degrees, etc.). The vertex region shaped to optimize the magnetic field projected from the TMS electromagnet. For example, the vertex region may be horizontal or vertical. In some variations the vertex region is formed by re-arranging the conductive windings forming the two coils so that they are no longer arranged in the same columnar structure that they are in the other portions of the bent magnetic coil loops. These TMS electromagnets may be well suited for use in deep-brain Transcranial Magnetic Stimulation.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: May 13, 2014
    Assignee: Cervel Neurotech, Inc.
    Inventors: David J. Mishelevich, M. Bret Schneider
  • Publication number: 20140111296
    Abstract: A system for producing magnetic structures includes multiple magnetizing circuits and multiple inductor coils used to magnetically print multiple magnetic sources onto multiple pieces of magnetizable material. The multiple pieces of magnetizable material may be moving on a motion control system. The multiple inductor coils may be configured on one or more gantries. The motion control system may be a conveyor system.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Applicant: Correlated Magnetics Research, LLC
    Inventors: Larry W. Fullerton, Mark D. Roberts, Stephen D. Straus
  • Patent number: 8704625
    Abstract: 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: Grant
    Filed: July 23, 2012
    Date of Patent: April 22, 2014
    Assignee: EnOcean GmbH
    Inventor: Frank Schmidt
  • Publication number: 20140104021
    Abstract: A system and a method are described herein for demagnetizing a region of a magnetic structure. In one embodiment, the system comprises: (a) a pulsed magnetizer; and (b) at least one magnetizing coil that receives a sequence of discrete currents with continually decreasing current values from the pulsed magnetizer and outputs a sequence of discrete magnetizing fields with continually decreasing field strengths to overwrite and at least partly demagnetize the region of the magnetic structure. The at least one magnetizing coil is located adjacent to the region of the magnetic structure.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 17, 2014
    Applicant: Correlated Magnetics Research, LLC.
    Inventors: Larry W. Fullerton, Mark D. Roberts, Hamilton Grant Moore
  • Patent number: 8659377
    Abstract: Provided is a magnetic device using permanent magnets according to an exemplary embodiment of the present invention. In more detail, the present invention relates to a magnetic device using permanent magnets that can form a high magnetic field using a first permanent magnet and a second permanent magnet to perform various kinds of magnetic field application experiments, in particular, can be used for a single crystal growth, generation of polarized neutrons, and the like, and easily manufactured with a simple configuration and secure sufficient durability.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 25, 2014
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Sang-Jin Cho, Shin-Ae Kim, Elena Magay
  • Patent number: 8648681
    Abstract: 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: Grant
    Filed: September 22, 2011
    Date of Patent: February 11, 2014
    Assignee: Correlated Magnetics Research, LLC.
    Inventors: Mark D. Roberts, Larry W. Fullerton, David P. Machado, Dillon Mize, Kelly Loum