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| Number | Title | Issue Date |
| 8179220 | Confined field magnet system and method A system and method of generating a magnetic field that is uniform in magnitude and direction may generally restrict the field from expanding away from a longitudinal axis. In some instances, such a magnetic field may be controllable in magnitude and direction. In a... | 05/15/2012 |
| 8138873 | Permanent magnet device A magnet arrangement for creating a magnetic field. The magnet arrangement includes a first magnet having a first surface defining a first pole and a second surface defining a second pole opposite the first pole, and a second magnet having a third surface defining a... | 03/20/2012 |
| 8098123 | Power inductor with reduced DC current saturation A power inductor includes a first magnetic core having a first end and a second end, an inner surface and an outer surface, and an inner cavity defined by the inner surface. A slotted air gap in the first magnetic core extends from i) the first end to the second end... | 01/17/2012 |
| 8022800 | Field coil assembly for electromagnetic clutch A field coil assembly for an electromagnetic clutch, which includes an electromagnetic coil body formed by winding an electromagnetic coil; a bobbin for supporting the electromagnetic coil body; a field core for receiving the bobbin and the electromagnetic coil body... | 09/20/2011 |
| 8013700 | Field element The present invention relates to a field element which reduces a harmonic component of a magnetic flux density. Permanent magnets (20) are in contact with first magnetic plates (1, 3) in a direction parallel to a rotation axis (P). The first magnetic p... | 09/06/2011 |
| 8013699 | MRI-safe electro-magnetic tranducer An electro-magnetic transducer includes a housing. At least one coil is associated with the housing. A spherical magnet within the housing is capable of turning in any direction and of moving along an axis. A first keeper and a second keeper are positioned on opposi... | 09/06/2011 |
| 7986205 | Magnetic field control method and magnetic field generator There is provided a magnetic field generator 10 which is capable of varying an orientation of a magnetic field at a target position P easily in all directions. The magnetic field generator 10 includes a pair of magnetic field generating units 16... | 07/26/2011 |
| 7940150 | Six-degree-of-freedom precision positioning system In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets forms a main driving force for the platform. Therefore, no friction is p... | 05/10/2011 |
| 7843294 | System and method for moving an object An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlati... | 11/30/2010 |
| 7839245 | System and method for producing circular field emission structures An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlati... | 11/23/2010 |
| 7834728 | Method for producing two dimensional codes for defining spatial forces An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlati... | 11/16/2010 |
| 7791440 | Microfabricated system for magnetic field generation and focusing A method of forming, in or on a Si substrate, planar micro-coils with coil windings of high aspect ratio (>3) and a wide variety of geometric shapes. The micro-coils may be formed on a Si substrate and be embedded in a dielectric, or they may be formed in trenches w... | 09/07/2010 |
| 7772949 | Magnet structure for nuclear magnetic resonance imaging apparatus A magnet structure for a Nuclear Magnetic Resonance imaging apparatus includes at least two opposing magnetic pole pieces, which are located at a certain distance from each other and delimit an imaging region. The pole pieces are formed by at least one massive layer... | 08/10/2010 |
| 7750775 | Control unit A control unit includes a plurality of electronic components; and at least two metal busbars disposed along each other. Each of the at least two metal busbars establishes an electrical connection between the electronic components and includes a magnetic-material por... | 07/06/2010 |
| 7737812 | Method for opening hollow structures made from magnetic nanoparticles A method is proposed for opening of hollow structures made of magnetic nanoparticles. To avoid an unwanted heating, the hollow structures are opened by a strong, preferably rotating magnetic field. The method can be used, in particular, for the releasing of a diagno... | 06/15/2010 |
| 7728707 | Split-coil magnet arrangement with improved mechanical construction A magnet arrangement with a magnet coil system (M) with two coil systems (C, D) that are each arranged in a container (B1, B2) positioned around the z axis and that are axially mechanically separated by a split (G), wherein each coil system (C, D) comp... | 06/01/2010 |
| 7719396 | Actuator A first virtual axis orthogonally intersects with a second virtual axis, and a third axis (axis passing a support center point) vertical to the first and second virtual axes is permitted to be a reference axis. A magnetic drive mechanism is provided with first magne... | 05/18/2010 |
| 7714685 | Electromagnetically operated unit, in particular a clutch, brake and/or lock An electromagnetically operated unit for controlling a radial connection. The unit has a first device which is optionally coupleable with a second device. The second device includes a magnet and/or electromagnet. The unit also has radially movable switching elements... | 05/11/2010 |
| 7646274 | Apparatus and method for non-invasive measurement of cardiac output A comparatively light and compact permanent magnet arrangement for an MRI apparatus has a pair of opposed permanent magnet arrays with a shimming system to adjust the uniformity and strength of a magnetic field in a central chamber of the apparatus. The MRI apparatu... | 01/12/2010 |
| 7642887 | System and method for reducing effect of magnetic fields on a magnetic transducer An electro-magnetic driver transducer free of torque in the presence of an external magnetic field, of any direction and orientation (such as in a Magnetic Resonance Imaging environment). The transducer includes a housing. At least one coil is associated with the ho... | 01/05/2010 |
| 7595713 | Magnetic field generator for MRI and method of covering magnetic field generator for MRI A magnetic field generator for MRI comprises a generator main body and a covering member for covering the whole generator main body, and the covering member is made of a non-magnetic material, for example a closely woven fabric of stainless steel, aluminum, copper, ... | 09/29/2009 |
| 7592890 | Magnetic-path member, electromagnetic coupling device using magnetic-path member, and method of manufacturing magnetic-path member A magnetic-path member includes first and second magnetic portions positioned on inner and outer peripheral sides of the magnetic-path member respectively. The magnetic-path member includes a non-magnetic portion interposed between the first and second magnetic port... | 09/22/2009 |
| 7583171 | Magnetic field generator, photomagnetic information storing system, and photomagnetic information storing apparatus The present invention efficiently radiates heat generated by a coil while suppressing a decrease in the efficiency of generation of magnetic fields caused by an eddy current. The present invention includes a coil extending spirally in a plane and covered with a diel... | 09/01/2009 |
| 7583172 | Multi-frequency electromagnetic field generator Disclosed is a multi-frequency electromagnetic field generator that is capable of generating electromagnetic flux fields that are projected at a distance from the device. Radial fields, horizontal fields and spiral fields are generated by the electromagnetic field g... | 09/01/2009 |
| 7522026 | Alignment method and system for electromagnet in high-energy accelerator New and useful alignment method and system for electromagnets used in the high energy accelerator that can make the installation simple and less time consuming are disclosed. By measuring the multiple of measurement reference points for obtaining the position and po... | 04/21/2009 |
| 7498915 | Application of superconductive permanent magnets A fixed remanence rigid permanent magnetic structure is provided. The fixed remanence rigid permanent magnetic structure is fabricated from a number of superconductive magnetic segments composed of high temperature superconductive particles. The superconductive magn... | 03/03/2009 |
| 7479859 | Apparatus and method for processing material in a magnetic vortex An apparatus and method in which three or more permanent or electromagnets are mounted in a support structure on rotatable axes in spaced relationship to each other such that the magnetic lines of force of the same magnetic polarity continuously repel each other to ... | 01/20/2009 |
| 7453342 | Method of controlling and stabilizing laser output This invention describes a means by which lasers and laser beam controllers mounted on moving vehicles or other unstable platforms can be isolated from vibrations. By magnetically levitating the entire laser or just the beam controller hardware, targeting efficiency... | 11/18/2008 |
| 7439836 | Magnetic field generating apparatus for magnetic resonance imaging A Magnetic Resonance Imaging (MRI) system is disclosed. The MRI system includes a cryogenic magnet assembly with a cryogenic vessel housing a superconducting magnet. Disposed radially inboard of the cryogenic magnet assembly are a gradient coil module and a pluralit... | 10/21/2008 |
| 7436179 | Magnet device A magnet device has main coils in a pair positioned facing each other to form a static magnetic field space in between and external magnetic flux shielding coils placed coaxially to the main coils. The external magnetic flux shielding coils have a first coil group h... | 10/14/2008 |
| 7432791 | Magnet arrangement for carrying, guiding and/or braking systems in magnetic levitation vehicles A magnet arrangement (1) for magnetic levitation vehicles is described that is comprised of an electromagnet having a plurality of magnet poles, said magnet poles having cores connected via pole backs (4) and coils (5) coiled onto them, said coi... | 10/07/2008 |
| 7432790 | Superconductor assembly The invention relates to a superconductor assembly comprising a metallic superconductor and a ceramic superconductor, which are mechanically and electrically interconnected to form a one-piece hybrid superconductor. ... | 10/07/2008 |
| 7423506 | Annular magnet An annular magnet is formed by coupling a plurality of arc-shaped divided magnets with each other in an annular shape as well as such being magnetized with N and S magnetic poles on the end surfaces thereof in an axial direction, wherein the annular magnet is formed... | 09/09/2008 |
| 7417434 | Magnetic resonance imaging system with iron-assisted magnetic field gradient system A magnetic resonance imaging apparatus includes a main magnet (20) that surrounds an examination region (18) and generates a main magnetic field in the examination region. A magnetic field gradient system (30) is disposed outside of the main mag... | 08/26/2008 |
| 7401483 | Residual magnetic devices and methods for an ignition actuation blockage device Residual magnetic locks, brakes, rotation inhibitors, clutches, actuators, and latches. The residual magnetic devices can include a core housing and an armature. The residual magnetic devices can include a coil that receives a magnetization current to create an irre... | 07/22/2008 |
| 7403089 | Magnet assemblies This invention relates to magnetic assemblies and, in particular, to assemblies which are useful for inducing magnetic fields within vacuum chambers. Thus a magnetic assembly, generally indicated at 10, includes the rectangular magnetically soft core 11 | 07/22/2008 |
| 7400223 | Superconducting magnet configuration with resistive elements A magnet configuration comprising a superconducting magnet coil system (M) and a current path (P) which comprises parts of the magnet coil system (M), wherein at least two electric connecting points (A1, A2, A3, A4) are disposed on the cu... | 07/15/2008 |
| 7394255 | Single-sided magnetic resonance magnet assembly Magnetic resonance apparatus is provided comprising a magnet having a plurality of pairs of coils arranged in respective substantially parallel planes. The coils in each pair are operable in a counter-running manner when in use so as to generate a region of magnetic... | 07/01/2008 |
| 7365623 | Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof The present invention provides a permanent magnet, comprising a cylinder formed with a permanent magnetic material. The cylinder comprises along a radial direction, a magnetic core and a magnetic sheath that are coaxial. The magnetic core is assembled in the magneti... | 04/29/2008 |
| 7365540 | Hybrid magnet configuration A co-axial magnet configuration for the production of a magnetic field and investigational volume which is suitable for measurement of magnetic resonance has at least one superconducting solenoid coil or solenoid coils which are radially nested within each other, wh... | 04/29/2008 |
