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| Number | Title | Issue Date |
| 7429740 | Electric-magnetic field-generating element and assembling method for same An electric-magnetic field-generating element and a multipole element comprising a plurality of these field-generating elements providing for a stable charged particle beam are described. For some embodiments, the electric-magnetic field-generating element includes ... | 09/30/2008 |
| 7411342 | Deflection unit for self-converging cathode-ray tubes with reduced trapezoid differential Electromagnetic deflection unit for colour cathode-ray tubes, including a pair of frame deflection coils and a pair of line deflection coils, at least one of these two pairs of coils having the shape of a saddle, each saddle-shaped deflection coil having a rear bund... | 08/12/2008 |
| 7402816 | Electron injection in ion implanter magnets One or more electron sources are utilized to inject electrons into an ion beam being transported between the polepieces of a magnet. In some embodiments, the electron sources are located in cavities in one or both polepieces of the magnet. In other embodiments, a ra... | 07/22/2008 |
| 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 |
| 7355313 | Stator, spindle motor, and recording disk driving apparatus Spindle-motor stator includes at least a first core sheet and at least one or more second core sheets located next to an end core sheet. A bent portion bent upward and a protrusion extending upward from the bent portion are formed at the forward end of the plurality... | 04/08/2008 |
| 7326941 | Apparatus and methods for ion beam implantation using ribbon and spot beams This invention discloses an ion implantation apparatus with multiple operating modes. It has an ion source and an ion extraction means for extracting a ribbon-shaped ion beam therefrom. The ion implantation apparatus includes a magnetic analyzer for selecting ions w... | 02/05/2008 |
| 7274135 | Color picture tube apparatus with particular deflection yoke structure A deflection yoke includes ferrite core, horizontal deflection coil, vertical deflection coil, and insulating frame for insulating the horizontal and vertical deflection coils. The deflection yoke has a cross section that satisfies the following A to C. A: A plurali... | 09/25/2007 |
| 7251144 | Display with electromagnetic interference shielding A display includes a monitor module, a base and a shielding apparatus. The base is coupled to the monitor module, and the shielding apparatus is disposed between the base and the monitor module. The shielding apparatus includes a magnetic core and a non-flexible coi... | 07/31/2007 |
| 7235909 | Electromagnetic motor/generator In some embodiments, an electromagnetic motor/generator may include one or more of the following features: (a) a frame, (b) a magnetic section having an upper magnet, a lower magnet, and a center magnet, coupled to the frame, and (c) at least one solenoid coupled to... | 06/26/2007 |
| 7196601 | Temperature correction of wigglers and undulators An undulator includes a periodic arrangement of magnets to produce a periodic spatial magnetic field distribution in a magnetic gap defined by the magnets. The undulator further includes a temperature-compensating material selectively arranged to compensate for a te... | 03/27/2007 |
| 7193415 | Magnetic lens, method and focus volume imaging MRI A ferromagnetic lens in the presence of a DC magnetic field and a smaller AC magnetic field creates a localized minimum of the magnitude of the magnetic field vector of the combined magnetic field in a volume defined in free space away from the lens referred to as t... | 03/20/2007 |
| 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 |
| 7167067 | Permanent magnet-type magnetic field generating device To reduce the skew angle components in a dipole ring magnetic field generating device, a magnetic field generating device 1 is provided in which comprises: a plurality of magnet elements 101 to 124 arranged in a ring shape such that a magnetizat... | 01/23/2007 |
| 7161453 | Rotating and pivoting magnet for magnetic navigation A magnet assembly comprising a magnet mounted for pivoting about a first axis spaced from the magnet, and rotating about a second axis that is perpendicular to and intersects with the first axis. The magnet comprising a plurality of segments each with a magnetizatio... | 01/09/2007 |
| 7157998 | Ferrite core, deflection yoke, and color picture tube apparatus A ferrite core constituting a deflection yoke has a plurality of ridge-shaped convex portions on an inner circumferential surface. In a cross-section orthogonal to a center axis, the cross-sectional shape of an outer circumferential surface of the ferrite core is su... | 01/02/2007 |
| 7116051 | Multibeam klystron A multibeam, electrostatically focused klystron includes a plurality of conductive members, ones of which are recessed to provide input and output sections of microwave cavities, wherein focusing voltage is applied between those sections. The conductive members are ... | 10/03/2006 |
| 7112789 | High aspect ratio, high mass resolution analyzer magnet and system for ribbon ion beams The present invention provides a windowframe magnet having an aligned array of paired bedstead coils in mirror symmetry can bend a high aspect ratio ribbon ion beam through angle of not less than about 45 degrees and not more than about 110 degrees, and can focus it... | 09/26/2006 |
| 7109409 | Magnetic field enhanced photovoltaic device A magnetic field enhanced photovoltaic device includes a photoelectric conversion layer, a first electrode, a second electrode, a ferro-antiferromagnetic exchange coupling layer and an applied magnetic field. The first electrode and the second electrode are respecti... | 09/19/2006 |
| 7078853 | Deflection apparatus for cathode ray tube A deflection apparatus for a cathode ray tube includes a horizontal deflection coil, a vertical deflection coil positioned external to the horizontal deflection coil, an insulating member interposed between the horizontal and the vertical deflection coils, and a cor... | 07/18/2006 |
| 7061170 | Deflection yoke having magnets for correcting raster distortion and cathode-ray tube apparatus having the deflection yoke A permanent magnet is selectively picked for a deflection yoke and provided on the periphery of the cathode ray tube for controlling the direction of an electron beam emitted towards a screen from an electron gun. The permanent magnet can adjust an irradiating point... | 06/13/2006 |
| 7061741 | Method for magnetic field reduction using the decoupling effects of multiple coil systems A method for reducing the magnetic field level in the vicinity of two or more connected reactors wherein each reactor is a magnetic dipole and wound so that currents flow in opposite directions and resulting in magnetic fluxes opposing each other. ... | 06/13/2006 |
| 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 |
| 7019308 | Thermal compensation in magnetic field influencing of an electron beam A device for influencing an electron beam, for example a beam deflecting device in an electron beam lithography machine, comprises a beam influencing coil (13) operable to influence an electron beam (EB) in the vicinity of the device by way of a magnetic fiel... | 03/28/2006 |
| 7012261 | Multipole lens, charged-particle beam instrument fitted with multipole lenses, and method of fabricating multipole lens A multipole lens producing less magnetic field variations is offered. Also, a charged-particle beam instrument fitted with such multipole lenses is offered. The multipole lens has plural polar elements, an annular holding member, and an annular yoke disposed outside... | 03/14/2006 |
| 7012360 | Cathode ray tube apparatus having velocity modulation coil A CRT apparatus is composed of a CRT, a deflection yoke, a velocity modulation coil, and a magnetic member. The CRT includes a glass bulb made up of a panel and a funnel connected together and an electron gun housed within the glass bulb, and emits an electron beam ... | 03/14/2006 |
| 7005788 | Magnetic device for correcting image geometry defects for cathode-ray tubes Deflection yoke for cathode-ray tubes with a north/south geometry correction comprising a pair of horizontal deflection coils and a pair of vertical deflection coils, the two pairs being isolated one from the other by a separator, a ferrite ring at least partly cove... | 02/28/2006 |
| 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 |
| 6972808 | CRT assembly of projection television A cathode-ray tube (CRT) assembly of a projection television includes a CRT for creating an image, a lens for magnifying the image created in the CRT and projecting the image onto a screen, and a coupler disposed between the CRT and the lens. A cooling liquid recept... | 12/06/2005 |
| 6958573 | Asymmetric shunt for deflection yoke for reducing diagonal symmetric defects Deflection yoke for a cathode-ray tube has at least one pair of saddle-shaped coils. The saddle-shaped coils form an asymmetric field in the vicinity of a front conductor assembly. The field asymmetry is produced by an inclusion near the front conductor assembly of ... | 10/25/2005 |
| 6956372 | System and method for NMR logging with helical polarization Nuclear magnetic resonance well logging apparatus and method of use for geophysical examination of a borehole as the borehole is drilled. The apparatus is connected to the drill bit to follow it through the borehole as the borehole is formed. The apparatus comprises... | 10/18/2005 |
| 6949875 | Deflection yoke for cathode ray tube A deflection yoke for a cathode ray tube includes a ferrite core that has a body that is funnel-shaped and with an inner surface and an outer surface, the inner surface of the ferrite core including a first section formed as a circle with a predetermined, unvarying ... | 09/27/2005 |
| 6946940 | Permanent magnet and shim design A general method for the design of structures composed of permanent magnetic material for producing and modifying magnetic fields. The method employs a finite set of permissible spatial harmonic modes upon a surface. In particular, it has applications where the stru... | 09/20/2005 |
| 6946663 | Method of fabricating multipole lens, multipole lens, and charged-particle beam instrument equipped therewith A method of efficiently fabricating a multipole lens. The multipole lens has plural polar elements and an annular holding member. Each polar element has a held portion. The annular holding member is provided with through-holes for holding the held portions of the po... | 09/20/2005 |
| 6943490 | Deflection yoke with improved deflection sensitivity A deflection yoke mounted on a rear portion of a cathode ray tube (CRT) to deflect an electron beam emitted from an electron gun of the CRT includes a coil separator mounted on the CRT, a horizontal deflection coil mounted on an inside of the coil separator, having ... | 09/13/2005 |
| 6937007 | Magnet field symmetry for hall sensor A method for balancing the flux density of a permanent magnet includes sensing flux density in a permanent magnet and if unbalanced relative to a physical center, adjusting the cross-sectional area and shape of the magnet by removing magnetic material from the magne... | 08/30/2005 |
| 6933820 | Magnetic circuit with opposing permanent magnets and method for adjusting magnetic field thereof It is an object of the present invention to facilitate adjustment of magnetic fields. There is provided a magnetic circuit with opposing permanent magnets, comprising: a pair of permanent magnets opposing each other across a gap, the pair of permanent magnets being ... | 08/23/2005 |
| 6924590 | Color picture tube device with distortion correction coils A color picture tube device has a funnel glass, a pair of horizontal deflection coils, an insulating frame, and a pair of vertical deflection coils. The pair of horizontal deflection coils are opposed to each other in a vertical direction around the outer surface of... | 08/02/2005 |
| 6924722 | Magnetic circuit with opposing permanent magnets To reduce the cost of the magnet of magnetic circuits with opposing permanent magnets by ensuring that inexpensive magnets having a low coercive force can be used without substantial loss of magnetism caused by demagnetization fields, there is provided a magnetic ci... | 08/02/2005 |
| 6914505 | Deflection yoke and CRT device The invention provides a deflection yoke comprising: a tube-shaped core made of a magnetic material that has on its inner wall, ridges each of which extends along the CRT axis direction, the ridges being arranged circumferentially at intervals and thereby forming sl... | 07/05/2005 |
| 6914248 | Particle-optical apparatus and method for operating the same A particle-optical apparatus is proposed as well as a method for operating the same. The particle-optical apparatus provides a magnetic field for deflecting charged particles of a beam of charged particles and comprises a body of a material with a permeability numbe... | 07/05/2005 |
