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| Number | Title | Issue Date |
| 7414504 | Laminated solenoid plunger for solenoid assembly A solenoid plunger for use in solenoid driven multi-line embossing systems is constructed of magnetic steel laminations that are attached to a center block which is machined to mount a solenoid shaft and anti-rotate pins. The laminations are attached to the center b... | 08/19/2008 |
| 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 |
| 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 |
| 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 |
| 6921042 | Concentric tilted double-helix dipoles and higher-order multipole magnets Concentric tilted double-helix magnets, which embody a simplified design and construction method for production of magnets with very pure field content, are disclosed. The disclosed embodiment of the concentric tilted double-helix dipole magnet has the field quality... | 07/26/2005 |
| 6885143 | Cathode ray tube with offset deflection center A cathode ray tube is provided, and more particularly, a cost-effective cathode ray tube effective for minimizing deterioration of color purity and obtaining a sufficient margin for a beam strike neck (BSN) phenomenon by moving a ½ center (deflection center) closer... | 04/26/2005 |
| 6630791 | Cathode ray tube device that reduces magnetic field leakage Two closed-loop coils are respectively set at the top or the bottom of a cathode ray tube. These two closed-loop coils serves in a pair as a cancel coil. Each closed-loop coil is positioned so as to make an interlinkage with the magnetic field leakage tha... | 10/07/2003 |
| 6590329 | Deflection yoke with a low power consumption To realize an energy-efficient color cathode-ray tube, deflection power requirement is reduced for a deflection yoke that includes one or more bend-up-less saddle type coils in at least one of a horizontal deflection coil and a vertical deflection coil, w... | 07/08/2003 |
| 6498435 | CRT display device to suppress electromagnetic radiation therefrom To construct a CRT display device capable of effectively suppressing unwanted radiation of electromagnetic waves occurring as a result of horizontal deflection or vertical deflection. A correction lead (6) series-connected to horizontal deflection coils (... | 12/24/2002 |
| 6452321 | Deflection device for a cathode ray tube having a correction coil with a non-circular shape A vacuum envelope of a cathode ray tube includes a face panel having a phosphor screen formed on the inner surface, a funnel joined to the face panel and having a yoke-mounting section, and an electron gun for emitting electron beams toward the phosphor s... | 09/17/2002 |
| 6404118 | Deflection yoke with a coil separator firmly engaged to the printed circuit board for preventing fluctuation A deflection yoke for preventing fluctuation of the deflection yoke by maintaining a firmly engaged state while preventing fracture and damage thereof caused by an assembling shock generated when assembling a printed circuit board and a rear cover. The pr... | 06/11/2002 |
| 5874879 | Leakage flux canceling device A leakage flux canceling device is provided which requires a small number of parts and which has high space factor. A leakage flux canceling device 30 is mounted to a funnel side of a deflecting apparatus for reducing leakage flux to a panel side attribut... | 02/23/1999 |
| 5828279 | Degaussing coil holder for cathode ray tube A holder for supporting a degaussing coil on a cathode ray tube. The degaussing coil holder is a flexible sheet having holes formed in each end to receive a lug of the cathode ray tube.... | 10/27/1998 |
| 5818159 | Electron beam deflection system for a cathode ray tube A deflection yoke for a cathode-ray tube, includes a pair of vertical deflection coils, a pair of horizontal deflection coils and a rigid separator insulating the pairs of deflection coils from each other. The separator has on its surface an arrangement f... | 10/06/1998 |
| 5736914 | Demagnetizing device for a cathode ray tube A demagnetizing device for a cathode ray tube having a screen portion and a funnel portion, comprising: an outer magnetic shielding member which is arranged so as to surround a funnel portion of a cathode ray tube, and which is formed of a magnetic sheet;... | 04/07/1998 |
| 5675213 | Cathode ray tube deflection yoke with reduced electric field radiation from terminal pins of printed circuit board on yoke The present invention is directed to a cathode ray tube having a neck portion and a funnel portion at one end of the neck portion. A yoke extends around the neck portion and has a printed circuit board mounted thereon. The printed circuit board includes a... | 10/07/1997 |
| 5614789 | Apparatus and method of reducing varying electrical fields in video display terminals The present invention is concerned with a method and an arrangement relating to visual display units, preferably a picture tube (1), for reducing to a minimum the electrical alternating fields generated by the display unit in the unit surroundings. The vi... | 03/25/1997 |
| 5568112 | Method and apparatus for reducing the strength of pulsating magnetic fields An apparatus and a method for reducing VLF pulsating magnetic field generated by electronic devices to less than about 0.25 mG beyond about 20 inches from said device. The apparatus includes a closed inert circuit having a number of windings effective to ... | 10/22/1996 |
| 5496798 | Superconducting tube for shielding magnetic fields A superconducting tube for shielding magnetic fields including a substrate having a tubular wall, a superconducting layer supported by the substrate, and at least two ring-shaped reinforcing members connected to the radially-outer surface of the tubular w... | 03/05/1996 |
| 5479144 | Multipole connector for accelerator magnet ends A method and apparatus for correcting harmonics (multipoles) in high energy particle accelerators using superconducting magnets using corrector rods adjacent to accelerator magnets. In such accelerators, superconducting coils are positioned around a non-m... | 12/26/1995 |
| 5469122 | Deflection yoke A deflection yoke has an induction coil wrapped about its ferrite core at an angle of from 0 to 70 degrees from the horizontal axis of the deflection yoke to supply current to a leakage magnetic-field canceling coil also mounted to the deflection yoke for... | 11/21/1995 |
| 5459445 | Electromagnetic wave reduction device The present invention is a device to reduce the electromagnetic waves generated by electric appliances with surface displays including but not limited to computer monitors and televisions. Further, the electromagnetic waves can be reduced in electronic pr... | 10/17/1995 |
| 5448212 | Deflection yoke device A deflection yoke device of the present invention includes a unit bobbin to be mounted in such a manner as to be fitted in a head portion side of a deflection yoke bobbin. The unit bobbin has two coil winding portions disposed at either or both of top and... | 09/05/1995 |
| 5432492 | Deflection yoke apparatus with auxiliar coils to compensensate magnetic leakage A deflection yoke apparatus has a pair of horizontal and a pair of vertical deflection coils, a coil separator therebetween, and a funnel-shaped deflection core which provides a magnetic path for magnetic flux generated by the deflection coils. A pair of ... | 07/11/1995 |
| 5430352 | Alternating electric field diminishing structure for cathode ray tube device A cathode ray tube device capable of providing sufficient shielding effect against leaking alternating electric field while exhibiting high reliability during long use. Alternating electric field generated by a deflection yoke is sufficiently reduced by t... | 07/04/1995 |
| 5406240 | Device to reduce the hazards of surrounding electromagnetic radiation In combination with an electric apparatus emitting electromagnetic radiation, an arrangement for reducing the radiation hazards on an operator in front of the apparatus is provided, the arrangement comprising at least three magnetic devices approximately ... | 04/11/1995 |
| 5404121 | Deflection yoke with a triangular magnetic-field leakage canceling coil A deflection yoke is mounted with a leaked magnetic-field canceling coil installed on a screen portion for attenuating externally emitted leakage magnetic field, using a horizontal deflection coil. The leaked magnetic-field canceling coil includes a botto... | 04/04/1995 |
| 5382875 | Stray magnetic field suppresser for CRT image displays A stray magnetic field suppression system for use in a CRT image display suppresses a stray magnetic field that emanates from the horizontal deflection coil of a beam-deflecting yoke which is energized by sawtooth waveform pulses from a horizontal oscilla... | 01/17/1995 |
| 5355107 | Deflection yoke with leaking magnetic field prevention coils The present invention is relative to a deflection yoke in which a leaking magnetic field preventing member is formed without a magnetic body, such that coil winding parts are formed opposite to and apart from each other at a predetermined distance in the ... | 10/11/1994 |
| 5319340 | Bi-chambered magnetic igloo A magnetic field source that produces a stepped field of greater magnitude than the remanence of the magnetic material used to construct it. The source is basically a magnetic igloo comprised of two hemispheres having different cavity flux value that are ... | 06/07/1994 |
| 5319332 | Magnetic shield for video monitor yokes A yoke for a cathode ray tube has deflection coils and a plurality of trim magnets mounted thereon. A tubular shield of Mu-metal slides over the coil to suppress an electromagnetic field radiated therefrom. In one embodiment, the trim magnets are inside t... | 06/07/1994 |
| 5304891 | Cathode-ray tube display device A cathode-ray tube display device wherein a resistance material, e.g. graphite, is provided on each of a funnel portion, a cone portion and a neck portion of a cathode-ray tube, and a deflecting coil unit is mounted to the neck portion through an insulato... | 04/19/1994 |
| 5227692 | Magnet assembly for correcting CRT misconvergence A convergence correcting magnet assembly means for adjusting the position of plural correcting magnets closer to or further from electron beams in a cathode ray tube, preferably comprising four bipolar magnets arranged in two offset pairs, one pair orient... | 07/13/1993 |
| 5221878 | Image pick-up system A television pick-up tube in an image pick-up system comprises an high-frequency magnetic deflection element which deflects the electron beam perpendicularly to the line direction in the television pick-up tube. As a result, residual charge remaining betw... | 06/22/1993 |
| 5220241 | Deflection yoke having horizontal auxiliary coils for reducing unnecessary radiant magnetic field A deflection yoke includes a horizontal deflection coil including a pair of saddle-shaped coils having a front transverse conductor and a rear conductor; a pair of void-core type horizontal auxiliary coils disposed only on the front transverse conductor, ... | 06/15/1993 |
| 5198729 | CRT monitor with elimination of unwanted time variable electric field Unwanted electric fields in the area in front of a CRT can be produced by flyback voltage pulses which occur across the horizontal deflection coils and are coupled to the inner DAG coating of the CRT. The unwanted fields can be eliminated by providing vol... | 03/30/1993 |
| 5196761 | Color cathode-ray tube In a shadow mask type color cathode-ray tube, the coercive force of the shadow mask frame, internal magnetic shield, shadow mask and reinforcing band is limited to a specific value when they are magnetized at specific magnetic field, in order to eliminate... | 03/23/1993 |
| 5194776 | Electron beam deflector with magnetic correction field and incorporated auxiliary magnetic shielding An improved electron beam deflector with incorporated permanent magnets for picture correction, where the magnets and the magnetic field generated by these magnets are surrounded by an auxiliary magnetic shielding that forms one piece with the deflector a... | 03/16/1993 |
| 5192935 | Attachment structure of a magnetic piece of a deflection yoke The invention relates to an attachment structure of a magnetic piece of a defection yoke to be fixed to the center of a coil separator, and the invention is constructed such that a center protuberance 3 is formed by protruding at the center of a supportin... | 03/09/1993 |
| 5191307 | Deflection yoke apparatus A coil case with a coil receptacle for receiving a coil winding is formed integrally with cover flaps which are swingably joined to either end of the coil receptacle by hinge portions. The coil case has mounting pawls formed thereon. The coil winding is r... | 03/02/1993 |
