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| Number | Title | Issue Date |
| 7808347 | Yoke and manufacturing method thereof A yoke, as embodied, includes a base having a center vent; at least a pair of inner yoke portions respectively located at both end edges of the center vent and protruding from the base to face each other, each of the inner yoke portions having a support protrusion, ... | 10/05/2010 |
| 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 |
| 7404540 | Primary pole piece for a solenoid actuator A primary pole piece (PPP) for an electrical solenoid linear actuator includes an inner skirt portion extending axially from a radial flange portion and having a substantially uniform cylindrical thickness and a non-uniform axial length. The skirt is formed into a p... | 07/29/2008 |
| 7325564 | Linear solenoid valve A linear solenoid valve includes a solenoid having a coil wound around a coil bobbin, a fixed core, and a movable core for being attracted to the fixed core when the coil is energized, and a valve mechanism having a valve element for selectively bringing an inlet po... | 02/05/2008 |
| 7323875 | Shimming structure and method for a magnetic resonance imaging apparatus In a magnetic resonance imaging apparatus and a method for shimming such an apparatus, at each of mirror-symmetrical assemblies respectively disposed at opposite faces of a static magnetic field generator, that each include a shimming ring, an additional shimming ri... | 01/29/2008 |
| 7319326 | Sensor and magnetic field apparatus suitable for use in for unilateral nuclear magnetic resonance and method for making same A unilateral NMR sensor comprising a ferromagnetic yoke; a permanent magnet arranged on the yoke; a pole piece on the magnet; the pole piece including an air-pole piece interface surface whose shape corresponds to an equipotential contour of magnetic scalar potentia... | 01/15/2008 |
| 7289013 | Bulk amorphous metal inductive device A bulk amorphous metal inductive device includes a magnetic core having at least one low-loss bulk ferromagnetic amorphous metal magnetic component forming a magnetic circuit having an air therein. The component has a plurality of similarly shaped layers of amorphou... | 10/30/2007 |
| 7273206 | Electromagnetic valve An electromagnetic manipulating portion of an electromagnetic valve includes a fixed iron core fixedly disposed in the inside hole of a bobbin and a movable iron core movably disposed in the inside hole and attracted to the fixed iron core by a magnetic attraction f... | 09/25/2007 |
| 7256672 | Magnetic field generating device and method of shimming thereof A magnetic field generating device is disclosed having an arrangement of permanent magnets, each permanent magnet (PM) having a north end and a south end, and each aligned in the same north-south orientation. The PM arrangement is configured to have a surface at the... | 08/14/2007 |
| 7250729 | Method of spark-processing silicon and resulting materials The subject invention pertains to a method of spark processing silicon and resulting materials. The subject invention also relates to electroluminescent devices incorporating the materials produced by the subject method. The subject method for spark-processing can e... | 07/31/2007 |
| 7244512 | Method of manufacturing electromagnetic devices using kinetic spray A method of manufacturing electric machines comprised of geometrically patterned arrays of permanent magnets, soft magnetic materials, and electrical conductors deposited by kinetic spraying methods directly atop a carrier. The magnets and planar coils of the presen... | 07/17/2007 |
| 7235910 | Selective etching process for cutting amorphous metal shapes and components made thereof A selective etching process cuts shapes from amorphous metal strip feedstock. The etching process comprises depositing a chemically resistant material to one side of the strip in a pattern that defines the requisite shape, mating the metal strip with a carrier strip... | 06/26/2007 |
| 7232495 | Method of magnetizing rare-earth magnet and rare-earth magnet The method of the present invention includes a step of preparing a rare earth magnet 22 disposed for forming a cylinder 22a, a first magnetizing step of applying a first external magnetic field H1 to the rare earth magnet 22, there... | 06/19/2007 |
| 7205766 | Magnet system and MRI system The present invention is intended to provide a magnet apparatus obviating the necessity of shield coils designed to suppress eddy currents. The magnet apparatus has gradient coils disposed in a bore of a cylindrical superconducting magnet, and includes a cylindrical... | 04/17/2007 |
| 7204473 | Solenoid valve A synthetic resin cap is attached to the tip portion of a movable iron core of a solenoid operation portion, a sliding portion extending to the position of a magnetic plate is formed in the base end portion of the cap, a guiding concave step portion having a depth e... | 04/17/2007 |
| 7183703 | Cathode ray tube and manufacturing method of deflection coil A cathode ray tube comprises a panel having a fluorescent screen on an inner surface; a funnel connected to the panel, an electron gun housed in the funnel; emitting electron beams; and a shadow mask for selecting colors of the electron beams emitted from the electr... | 02/27/2007 |
| 7167140 | Coil antenna A coil antenna having a magnetic core and a wire wound around the magnetic core. The magnetic core is flexible and bendable and is made of a mixture including soft magnetic powder and an organic binder agent. The soft magnetic powder comprises a plurality of particl... | 01/23/2007 |
| 7129627 | Color picture tube apparatus A ferrite core constituting a deflection yoke includes a plurality of convex portions in a ridge shape on an inner surface thereof. Among the plurality of convex portions, assuming that the convex portions in a range excluding a range of −20° to +20° with respec... | 10/31/2006 |
| 7116197 | Magnet structure A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent... | 10/03/2006 |
| 7098766 | Magnetic material for transformers and/or inductors A transformer is provided that includes a plurality of metal lines and a magnetic material provided about the plurality of metal lines. The magnetic material may include a structure to reduce Eddy currents flowing in the magnetic material. This structure may be a pl... | 08/29/2006 |
| 7097885 | Method of manufacturing electromagnetic devices using kinetic spray A method of manufacturing electric machines comprised of geometrically patterned arrays of permanent magnets, soft magnetic materials, and electrical conductors deposited by kinetic spraying methods directly atop a carrier. The magnets and planar coils of the presen... | 08/29/2006 |
| 7065860 | Method for assembling a magnetic field generator for MRI A plate yoke has an upper surface formed with a projection and a guiding rail. A new magnet block is transported by sliding on the upper surface of the plate yoke, and is bonded side by side with the projection or a magnet block which is already fixed. During the ab... | 06/27/2006 |
| 7053743 | Permanent magnet assembly and method of making thereof An imaging apparatus, such as an MRI system, contains at least one layer of soft magnetic material between the yoke and each permanent magnet. This imaging apparatus may be operated without pole pieces due to the presence of the soft magnetic material. The permanent... | 05/30/2006 |
| 7034537 | MRI apparatus correcting vibratory static magnetic field fluctuations, by utilizing the static magnetic fluctuation itself An MRI apparatus having an open structure includes a static magnetic field generating magnet including magnetic field generating sources arranged above and below an imaging space and magnetic field fluctuation reducing plates arranged inside the magnet. Gradient mag... | 04/25/2006 |
| 7014168 | Solenoid actuator having misalignment accommodating structure and solenoid valve using the same A solenoid actuator of a solenoid valve has a solenoid, a yoke, a stator, a cup and a restrained portion. The yoke radially surrounds the stator while radially forming an outer circumferential gap therebetween. The cup receives a plunger. The cup is arranged in the ... | 03/21/2006 |
| 6991742 | Mn-Zn ferrite and coil component with magnetic core made of same A Mn—Zn ferrite and a coil component are provided which obtains a low core loss in a frequency band above 1 MHz and even above 5 MHz and which can duly function in such a high frequency band. The Mn—Zn contains as basic components 44.00 to 50.0 mol % Fe2O3 (50 m... | 01/31/2006 |
| 6979945 | Ferrite core structure for color cathode ray tube A cathode ray tube having a ferrite core with a modified sectional configuration facilitates the correction of a mis-convergence along a diagonal direction of a screen, improves the efficiency with which electrons within electron beams are deflected, and is manufact... | 12/27/2005 |
| 6970061 | Magnet structure A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent... | 11/29/2005 |
| 6967481 | Circular pole piece, laminate block manufacturing method, and MRI system Provided is a circular pole piece that contributes to simplification of work and a reduction in costs and that has no gap created among adjoining blocks. A circular pole piece is manufactured by circularly arranging laminate blocks each having numerous hexagonal dir... | 11/22/2005 |
| 6956375 | Magnetic resonance imaging magnetic field generator A magnetic field generator assembly includes a plurality of magnetic elements configured to collectively generate a magnetic field sufficient for diagnostic data acquisition and a non-magnetizable pane operationally connected to limit separation of one magnetic elem... | 10/18/2005 |
| 6950003 | Device useful for signal transfer from static surface to rotating surface and viceversa A device useful for transferring signals from static surface to a rotating surface, said device comprising a pair of pot cores acting as a primary and secondary core and said primary pot core being wound with ‘N1’ number of turns and said secondary pot core bein... | 09/27/2005 |
| 6946941 | Permanent magnet assembly A permanent magnet assembly is disclosed that is adapted to provide a magnetic field across an arc-shaped gap. Such a permanent magnet assembly can be used, for example, to provide a time-varying magnetic field to an annular region. ... | 09/20/2005 |
| 6937127 | Apparatus for manipulating magnetic fields Techniques for producing and manipulating magnetic fields. The techniques employ the mutual repulsion of magnetic fields to create uniform magnetic fields and to manipulate the uniform magnetic fields. The uniform magnetic field is created between two planar magnets... | 08/30/2005 |
| 6937018 | Systems and methods for fabricating pole pieces for magnetic resonance imaging systems An imaging system including at least one pole piece is described. The at least one pole piece includes at least two grain-oriented sheets that are stacked together, where a direction of easy magnetization of a first of the at least two grain-oriented sheets is diffe... | 08/30/2005 |
| 6933828 | Devices and methods for protecting windings around a sharp edged core Electromagnetic devices are provided including an electrically conductive core having an inner diameter defining an opening therethrough and an outer diameter, the core having sharp edges extending circumferentially around the inner diameter and around the outer dia... | 08/23/2005 |
| 6930413 | Linear synchronous motor with multiple time constant circuits, a secondary synchronous stator member and improved method for mounting permanent magnets The linear synchronous motor consists of a specific primary and secondary part. The secondary portion is a ferromagnetic back plate. An array of permanent magnets are attached to the back plate so that a fixed or variable pole pitch occurs in a precise manner betwee... | 08/16/2005 |
| 6909284 | High efficiency planar open magnet MRI system structured and arranged to provide orthogonal ferrorefractory effect A planar MRI system is disclosed. The system has an open magnet configuration that produces a magnetic field having a remote region of substantial magnetic field homogeneity. Spatial encoding gradient coils and a rf coil provide MRI data for image reconstruction. Th... | 06/21/2005 |
| 6897751 | Pole-piece unit, method for assembling the same, and magnetic field generator A magnetic field generator comprises a pair of pole-piece units. The pair of pole-piece units respectively include plate yokes. Each of the plate yokes includes a surface facing the other's and provided with a permanent magnet group and a pole piece. The pole piece ... | 05/24/2005 |
| 6889070 | Magnetic resonance imaging apparatus and assembly process thereof Magnetic resonance imaging apparatus having a pair of a first magnet device and a second magnet device for generating a magnetostatic field, the pair of magnet devices being installed opposite each other across an examination space for accommodating an examinee; a g... | 05/03/2005 |
| 6838966 | Circular pole piece and MRI system The object of the present invention is to minimize the residual magnetic induction in a circular pole piece included in a magnetic circuit for magnetic resonance imaging. A circular pole piece is divided into two portions, that is, a center portion and a marginal po... | 01/04/2005 |
