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| Number | Title | Issue Date |
| 7423509 | Coil comprising several coil branches and micro-inductor comprising one of the coils The coil comprises a plurality of non-joined turns, each turn comprising a rectangular bottom flat section in a bottom plane and a rectangular top flat section in a top plane and two rising sections. The turns fill almost all of the enveloping surface of the coil, a... | 09/09/2008 |
| 7317372 | Air-core coil and process for fabricating the same The present invention provides an air-core coil 21 wherein one conductor is wound into a spiral form to thereby form consecutively, axially of the coil, a plurality of unit turn portions (25, 26, 27) which are different from each other in inner periphe... | 01/08/2008 |
| 7168681 | Fuel injection valve having small sized structure A fuel injection valve includes a valve member, a movable core, a fixed core, and a coil. The valve member opens and closes a nozzle hole. The movable core reciprocates with the valve member in a substantially axial direction of the movable core. The fixed core is a... | 01/30/2007 |
| 7170381 | Method and apparatus for transferring energy in a power converter circuit A reduced cost energy transfer element for power converter circuits. In one embodiment, an energy transfer element according to an embodiment of the present invention includes a magnetic element having an external surface with at least a first winding and a second w... | 01/30/2007 |
| 7091645 | Concentrated-winding type stator coil unit for rotary electric machine A concentrated-winding type stator coil unit for a rotary electric machine is provided with a stator core having a core back and teeth protruding from the core back. Plural coils are wound around the teeth respectively. Each coil is composed of, for example, a first... | 08/15/2006 |
| 6566994 | Coil for an AC current sensor An improved formable coil for an AC sensor having a predetermined length and a predetermined number of turns. The coil is wound in multiple passes in opposite directions, with a predetermined number of passes in each direction to fill in any gaps and prov... | 05/20/2003 |
| 6356180 | High-voltage generating transformer In a high-voltage generating transformer having primary and secondary coil bobbins coaxially mounted on one another relative to a center core, an element wire of the primary coil is wound spirally around the primary coil bobbin in such a way that the both... | 03/12/2002 |
| 6252483 | Slant winding electromagnetic coil and ignition coil for internal combustion engine using same An electromagnetic coil which may be employed as an ignition coil for an internal combustion engine is disclosed. The electromagnetic coil includes a lower voltage winding portion and a higher voltage winding portion. The lower voltage winding portion is ... | 06/26/2001 |
| 6069549 | Winding, particularly for a high-voltage ignition coil circuit A process for producing a coil of wire formed at least partially of substantially frustoconical plies of wires laid against one another in a continuous fashion. Wire is first wound onto a core in a first direction over a first length L which is less than ... | 05/30/2000 |
| 6060973 | Slant winding electromagnetic coil and ignition coil for internal combustion engine using same An electromagnetic coil which may be employed as an ignition coil for an internal combustion engine is disclosed. The electromagnetic coil includes a lower voltage winding portion and a higher voltage winding portion. The lower voltage winding portion is ... | 05/09/2000 |
| 5929736 | Engine igniting coil device and method of winding an ignition coil In an engine igniting coil device comprising an ignition coil assembly potted integrally in a coil case by injecting melted insulating resin, a secondary coil is formed on a coil bobbin by bank winding an element wire in layers of wire turns one over anot... | 07/27/1999 |
| 5736917 | Electromagnetic coil and manufacturing apparatus for the same A traverse shaft section 609 shifts in response to the rotation of a bobbin rotating section 604 with a predetermined winding pitch P1 equivalent to two to 10 times the diameter of a wire rod 520. With this shift movement of traverse shift section 609, wi... | 04/07/1998 |
| 5124681 | Winding construction for a transformer A winding construction for a transformer includes a single frame transformer core, an insulator layer, a primary winding, and a secondary winding. The secondary winding is wound with turns wound in a tilted arrangement on the single frame transformer core... | 06/23/1992 |
| 5118998 | Multi-tap primary coil for gas discharge lamps A multi-tap ballast including wires of two gauges connected to each other to provide a smaller package than previously could be obtained.... | 06/02/1992 |
| 4914413 | Transformer with layer-wound and random wound windings An improved transformer for withstanding and decoupling high voltage input impulses has a layer wound primary with interlayer insulation also serving as a spacer between the primary winding and the secondary winding and also as a spacer between the primar... | 04/03/1990 |
| 4443743 | Two axis actuator A multiaxis actuator is described which provides force along at least two translational axes through the interaction of multiple windings on a single platen which interact with the field poles of a magnetic member spaced apart a sufficient distance to all... | 04/17/1984 |
