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| Number | Title | Issue Date |
| 8106738 | Ballast for multiple lamps and method of manufacturing the same Disclosed herein is a ballast for multiple lamps and a method of manufacturing the ballast. A first coil is wound around a bobbin which has a partition formed in the center portion of an inner space thereof. An insulating sheet is stacked on the first coil, and a se... | 01/31/2012 |
| 7952457 | Coil component A coil component that can be mounted on a printed circuit board, with a part in an aperture of the printed circuit board. The coil component includes a first flange on an upper side and a second flange. Terminal boards are on respective opposite sides of the first f... | 05/31/2011 |
| 7830233 | Electrical induction device for high-voltage applications An electrical induction device for high voltage applications, of the type comprising a magnetic core which has at least one leg and is operatively coupled to a supporting structure, at least one inner winding which is arranged around said leg and has a first rated v... | 11/09/2010 |
| 7292127 | Transformer There is provided a joint structure of a wound iron core in which iron core characteristics can be enhanced by improving the distribution of magnetic flux within an iron core. A wound iron core is formed to provide a joining structure or a butt joining structure and... | 11/06/2007 |
| 7247922 | Inductor energy loss reduction techniques An inductive device including an inductor coil located over a substrate, at least one electrically insulating layer interposing the inductor coil and the substrate, and a plurality of current interrupters each extending into the substrate, wherein a first aggregate ... | 07/24/2007 |
| 7023314 | Transformer The invention relates to a transformer (10, 10′) with a core (11) which has a center piece (11a) with a first and a second flange (11b, 11c), in which a first and a second winding (12, 13) of the trans... | 04/04/2006 |
| 6951268 | System for transmitting energy and/or data between a vehicle body and a removable part A system is proposed for transmitting energy and/or data between a vehicle body and a removable part, a first core half having a pin and a pin ring which extend into a second core half to thus improve an inductive coupling. The first and second core halves are eleme... | 10/04/2005 |
| 6917272 | Electric device An electric device comprising at least one core (5, 10) of magnetic material and a high-voltage winding (16) in the form of an electric conductor wound around the core, and a method for manufacturing such a device is described. The device comprises a f... | 07/12/2005 |
| 6911777 | Clamp-on low power isolation transformer for airfield lighting A clamp-on isolation transformer for an airfield lighting fixture in an airfield lighting system includes a first portion configured to receive a portion of a primary conductor of a primary current loop and a second portion configured to receive another portion of t... | 06/28/2005 |
| 6680518 | Monolithic inductance-enhancing integrated circuits, complementary metal oxide semiconductor (CMOS) inductance-enhancing integrated circuits, inductor assemblies, and inductance-multiplying methods Monolithic inductance-enhancing integrated circuits, complementary metal oxide semiconductor (CMOS) inductance-enhancing integrated circuits, inductor assemblies, and inductance-multiplying methods are described. In one embodiment, a monolithic inductance... | 01/20/2004 |
| 6642827 | Advanced electronic microminiature coil and method of manufacturing An advanced microelectronic coil device incorporating a toroidal core and a plurality of sets of windings, wherein the windings are separated by one or more layers of insulating material. In one embodiment, the insulating material is vacuum-deposited over... | 11/04/2003 |
| 6513230 | Coil apparatus and manufacturing method for the same A core-coupling unit includes a top cover and a bottom cover each having a U-shape. The core-coupling unit clamps a pair of core members in a coupled state with the top cover and the bottom cover being coupled with each other. The top cover is provided wi... | 02/04/2003 |
| 6492891 | Transformer device, high voltage generating apparatus having the same, and lighting system having them A transformer device includes a housing made of a dielectric material, a core received within the housing, a secondary coil wound around an outer peripheral surface of the core, a high-voltage terminal connected to a high-voltage side end of the secondary... | 12/10/2002 |
| 6424246 | Transformer core and coil support A transformer includes a tank having a side wall, a core defining a core window, and a pair of coils, each of which surrounds a portion of the core and includes a portion passing through the core window. The transformer further includes a core and coil su... | 07/23/2002 |
| 6298544 | Method of fabricating a high frequency thin film coil element Disclosed herein is a method of fabricating a high frequency thin film coil element having a main coil body composed of a rod shaped ceramic substrate, a thin metallic film layer covering the ceramic substrate, a conductor layer covering the thin metallic... | 10/09/2001 |
| 6255714 | Integrated circuit having a micromagnetic device including a ferromagnetic core and method of manufacture therefor An integrated circuit and method of manufacturing therefor. In one embodiment, the integrated circuit includes a substrate with an insulator and a capacitor formed over the substrate. The integrated circuit further includes an adhesive formed over the ins... | 07/03/2001 |
| 6218926 | Reactor and transformer core assembly A magnetic core assembly and method of assembling a magnetic core assembly. The core assembly includes laminated magnetic core tightly clamped together by a pair of unitized flanged clamps. Each unitized flanged clamp has a generally flat surface and a pe... | 04/17/2001 |
| 6163243 | Toroidal current transformer assembly and method A current transformer assembly comprises a toroidal core and a conductor having a body portion and a mounting portion. The conductor's body portion extends through the aperture of the toroidal core. The mounting portion is positioned for a mechanical and ... | 12/19/2000 |
| 6131041 | Wireless terminal equipment including electric component having conductor film formed on insulative base An inductance device wherein a conductor film is formed on a base, grooves are formed in the conductor film, a protective material is disposed on the grooves, and a length L1, a width L2 and a height L3 of the inductance device satisfy-the following relat... | 10/10/2000 |
| 6014068 | Electromagnetic relay A miniature electromagnetic relay is capable of increasing the coil packing density, yet assuring electrical insulation of the coil from a core of the electromagnet. The relay includes a pair of movable and fixed contacts, an armature carrying the movable... | 01/11/2000 |
| 5963119 | Electric component having conductor film formed on insulative base An inductance device wherein a conductor film is formed on a base, grooves are formed in the conductor film, a protective material is disposed on the grooves, and a length L1, a width L2 and a height L3 of the inductance device satisfy the following relat... | 10/05/1999 |
| 5929599 | Inductive coupling apparatus for charging an electric car An inductive coupling apparatus charges a storage device in an electric car by means of an external power source apparatus. The inductive coupling apparatus includes a coil unit assembly comprising a primary coil unit (10) and a secondary coil unit (20). ... | 07/27/1999 |
| 5895544 | Method of controlling distance between members during article manufacture and article made thereby A method of providing a predetermined set distance apart between two members in article manufacture. This involves clamping the members together with a mixture of an adhesive and glass microspheres between opposing surfaces of the members, the microsphere... | 04/20/1999 |
| 5870011 | Line filter The present invention relates to a line filter that is characterized by suppressing magnetic adverse effects inflicted on other components due to leakage magnetic fluxes from the closed magnetic circuit core used in the line filter and at the same time pr... | 02/09/1999 |
| 5774320 | Modular current transformer for electronic circuit interrupters A modular current transformer containing both air and metal cores on a common load strap provides sensing current to the electronic trip unit within the circuit interrupter along with supplying operating power to the trip unit components. The current sens... | 06/30/1998 |
| 5745021 | Line filter A line filter includes a magnetic core having a leg. A bobbin is placed around the leg of the magnetic core. The bobbin has end collars provided with projections respectively. A pair of windings are provided on the bobbin. A molded casing made of resin ho... | 04/28/1998 |
| 5739738 | Inflatable HI Q toroidal inductor An inflatable high Q toroidal inductor is fabricated from an inflatable tidal-shaped shell made from a flexible material provided with a fitting adapted to receive and vent pressurized gas. A pair of flexible strips are disposed on opposite sides of the ... | 04/14/1998 |
| 5703558 | Combined terminal block mount and lamination stack keeper A combined terminal block mount and lamination stack keeper has a metal keeper with a flat first portion of a size and shape to lie contiguous to and oriented with a stack of laminations. A part of the stack of laminations is adapted to receive an inducta... | 12/30/1997 |
| 5684446 | Transformer core-coil frame attachment and ground A transformer core-coil frame attachment and ground. The core-coil is mounted on a metal frame with flanges extending along the bottom of the frame. Nonconductive support members in the form of channels are mounted on the flanges of the cross member to su... | 11/04/1997 |
| 5621372 | Single phase dry-type transformer A single phase, dry type transformer has an iron core, high voltage windings embedded in cast resin, and low voltage windings resin encapsulated. The low voltage winding is constructed with flexible sheet conductors. Insulating material includes a means t... | 04/15/1997 |
| 5583732 | Modular current transformer for electronic circuit interrupters A modular current transformer containing both air and metal cores on a common load strap provides sensing current to the electronic trip unit within the circuit interrupter along with supplying operating power to the trip unit components.... | 12/10/1996 |
| 5523735 | High tension line transformer for a television receiver A high voltage transformer for a television receiver includes a coil former supporting a primary winding on a magnetic core. The primary winding has an axial length L. A compartmentalized coil former supports a high voltage coil radially surrounding the p... | 06/04/1996 |
| 5448217 | Ignition coil with spiral-back pyramid windings An ignition coil is disclosed that includes a primary coil, a secondary coil and a core about which the primary and secondary coil are disposed. The secondary coil has in inner diameter greater than the diameter of the primary coil. The primary coil is di... | 09/05/1995 |
| 5414402 | Multi-layer substrate A multi-layer substrate which should be used with an inductor. The multi-layer substrate has an internal coil which should be connected with the inductor electrically. The internal coil has such an inductance value that the total inductance of the inducto... | 05/09/1995 |
| 5396210 | Dry-type transformer and method of manufacturing A dry type transformer has an iron core, high voltage windings embedded in cast resin, and low voltage windings resin encapsulated. The low voltage winding is constructed with flexible sheet conductors. Insulating material includes an apparatus to secure ... | 03/07/1995 |
| 5392018 | Electronically tuned matching networks using adjustable inductance elements and resonant tank circuits The disclosure discusses impedance matching circuits based on parallel-resonant L-C tank circuits, and describes a low-loss design for an adjustable inductance element suitable for use in these parallel tank circuits. The application of an impedance match... | 02/21/1995 |
| 5315280 | Bobbin for electrical windings A transformer (202) has a bobbin (2) which has an inner portion (104) supporting an inner electrical winding (140) and having a magnetic core recess. The inner portion is located within an outer portion (4) supporting an outer electrical winding (40). The... | 05/24/1994 |
| 5208572 | Air-core reactor with a magnetic shield A reactor having a coil surrounded by a magnetic shield formed of laminated magnetic sheets. Connecting members pass through the central opening of the coil and are clamped between sheets of the magnetic shield. Each connecting member comprises a pair of ... | 05/04/1993 |
| 5194841 | Support structure for wound transformer core A cradle or sling of banding strap material supports a wound magnetic core from an upper fixed support to at least partly relieve the weight of the core on the transformer winding and to permit the core to assume a more relaxed shape to reduce its interna... | 03/16/1993 |
| 5100311 | Coil locator for mold encapsulation A mold locator is adapted to support and position a wound electromagnetic coil within a mold for encapsulation of the coil by dielectric media. In one preferred form, the locator includes an annular central body having arms extending radially from the cen... | 03/31/1992 |
