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| Number | Title | Issue Date |
| 7271691 | Method of winding coil and transformer and inverter liquid crystal display having coil wound using the same A method of winding a coil of a transformer in an inverter of a liquid crystal display including a bobbin wound with a coil and a core introduced into the bobbin, the method includes forming a coil winding part having no protrusion member at the bobbin so as to excl... | 09/18/2007 |
| 7268658 | Transformer having leakage inductance control structure A transformer having a leakage inductance control structure includes a primary coil, a secondary coil formed at a selected coil ratio relative to the primary coil to transform voltage and output electric power, and a leakage inductance control coil which is wound on... | 09/11/2007 |
| 7187262 | Plastic sealing of solenoid bobbins A method and apparatus for overmolding a plastic shroud onto a bobbin including the step of providing a protrusion ring on the surface of the bobbin surrounding each standoff between the bobbin and a mold wall and extending outwards from the surface of the bobbin. A... | 03/06/2007 |
| 7142079 | Transformer structure A transformer structure is proposed herein which includes a primary winding coil, a secondary winding coil, a bobbin module, and a magnetic core assembly. The magnetic core assembly is mounted within the bobbin module. The bobbin module includes a first winding wind... | 11/28/2006 |
| 7130197 | Heat spreader A heat spreader is disclosed. The heat spreader includes a body member, a first fin connected to the body member, a second fin connected to the body member, a third fin connected to the body member, and a fourth fin connected to the body member. The first and second... | 10/31/2006 |
| 7116200 | Inductive coil assembly An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect to the inductive primary coil... | 10/03/2006 |
| 7061357 | High voltage transformer and microwave oven provided with the same A high voltage transformer includes a core, an output terminal, and an insulation member. The core is surrounded by coils to boost an alternating current voltage, and is grounded. The output terminal outputs the voltage boosted by the plurality of coils. The insulat... | 06/13/2006 |
| 6992558 | Electric ballast An electric ballast 1 is provided with an electric coil with windings having a width d which are wound on a synthetic resin coil base 10 comprising a box-like base part 11 of rectangular shape having four faces 111, 112, 113, 114. The bas... | 01/31/2006 |
| 6906609 | Planar transformer A transformer having at least one primary winding and one secondary winding. The windings are disposed between walls of a first and second bobbin member. In preferred eombodiments, the creepage distance between the windings can be increased by providing a flange on ... | 06/14/2005 |
| 6859127 | Device for combining annular transformers with a machine housing A device for combining annular transformers with a machine housing includes a bolt to fix annular transformers on a machine housing and a saucer-shaped plate assembled on the outer side of the machine housing. The saucer-shaped plate is bored with a central insert h... | 02/22/2005 |
| 6850141 | Integrated circuit inductors The invention relates to an inductor comprising a plurality of interconnected conductive segments interwoven with a substrate. The inductance of the inductor is increased through the use of coatings and films of ferromagnetic materials such as magnetic metals, alloy... | 02/01/2005 |
| 6834644 | Circular ignition coil assembly An ignition assembly provides a current to a spark plug to combust fuel in a cylinder of an internal combustion engine. The ignition coil assembly includes a primary winding defining a central axis. A secondary winding is wrapped about the primary winding coaxial wi... | 12/28/2004 |
| 6825747 | Integrated circuit inductors The invention relates to an inductor comprising a plurality of interconnected conductive segments interwoven with a substrate. The inductance of the inductor is increased through the use of coatings and films of ferromagnetic materials such as magnetic metals, alloy... | 11/30/2004 |
| 6822545 | Integrated circuit inductors The invention relates to an inductor comprising a plurality of interconnected conductive segments interwoven with a substrate. The inductance of the inductor is increased through the use of coatings and films of ferromagnetic materials such as magnetic metals, alloy... | 11/23/2004 |
| 6817087 | Integrated circuit inductors The invention relates to an inductor comprising a plurality of interconnected conductive segments interwoven with a substrate. The inductance of the inductor is increased through the use of coatings and films of ferromagnetic materials such as magnetic metals, alloy... | 11/16/2004 |
| 6696909 | Circuit module and method for mounting the same A circuit module has a circuit board on which electronic components are mounted and a covering member which has a plate portion and one or more supporting portions. The supporting portions fix the plate portion parallel to the surface of the circuit board... | 02/24/2004 |
| 6362717 | Coil assembly A coil assembly comprises a bobbin for supporting a coil. The bobbin supports a metal ferrule. A metal bracket is releasably coupled to the bobbin. The bracket holds the ferrule in place. The ferrule and the bracket are arranged to cooperatively serve as ... | 03/26/2002 |
| 6308696 | Ignition apparatus for use in internal combustion engine An ignition apparatus is received in a plug hole which is formed by a cylinder head and a cylinder head cover of an internal combustion engine. A side core has a slit between two horizontally extending side wall ends. The side core is selected from a lami... | 10/30/2001 |
| 5973307 | High voltage transformer with side insulation support and formed with through-holes for lead wires A high voltage transformer, especially for use in a microwave oven is provided. The high voltage transformer includes: a primary coil to which a commercial power supply is connected; a secondary coil for inducing a high voltage necessary for driving a mag... | 10/26/1999 |
| 5751204 | Protective casing for non-sheathing transformer A protective casing for a non-sheathing transformer has two downward extended arms suitable for inserting into two spaces between two lateral sides of a coil and two lateral inner edges of a steel core frame of the transformer and be retained thereto by t... | 05/12/1998 |
| 5739736 | Mounting arrangement for a high-voltage transformer of a microwave oven A microwave oven includes a compartment in which a magnetron and a high-voltage transformer are disposed. The transformer includes coils disposed within a core. The core has holes formed in its underside, which are aligned with respective through-holes fo... | 04/14/1998 |
| 5507089 | Method of assembly of a variable reluctance sensor A method of securing the bobbin assembly of a variable reluctance sensor within a hollow sensor shell having an opening in the front wall thereof to permit the magnet of the bobbin assembly to be exposed therethrough. A welding apparatus is provided for a... | 04/16/1996 |
| 5483405 | Mini-transformer with molded cover and retention structure A mini-transformer features an iron or ferrite core (2) and primary and secondary windings (3, 4). Portions of the windings (3, 4) which extend beyond the iron or ferrite core (2) are covered on both sides with a thermoplastic material forming a lid (6, 7... | 01/09/1996 |
| 5469334 | Plastic quad-packaged switched-mode integrated circuit with integrated transformer windings and mouldings for transformer core pieces A switching power supply embodiment of the present invention includes a plastic leaded chip carrier (PLCC) that has two rectangular holes joined by a channel on the bottom surface that allow the PLCC to be surface mounted on a printed circuit board over a... | 11/21/1995 |
| 5463365 | Coil A coil contains a winding part and a core. The winding part is formed of plural laminated sheets each having a winding pattern. Plural winding patterns are formed on at least one sheet. Each of the winding patterns has a different number of turns, and the... | 10/31/1995 |
| 5448216 | Flyback transformer A connecting member is fixedly mounted in a predetermined location so as to penetrate a closed space formed with a ferrite core, and an end of a first lead wire is inserted and connected with an engagement part formed at one end part of the connecting mem... | 09/05/1995 |
| 5264815 | Fastener for electronic component A combination of a fastener with an electronic component, wherein the electronic component includes a bobbin having an axial portion, windings around the axial portion of the bobbin, external terminals projecting from the bobbin, around each of which exte... | 11/23/1993 |
| 5239278 | Transformer and mounting bracket assembly A transformer assembly having a mounting plate of electrically conductive material An electrically conductive core of a transformer has an end mounted on the plate and electrically connected to the plate. A fastener on the plate engages an opening in a ju... | 08/24/1993 |
| 5200731 | Double insulated transformer of the coaxial type and method of assembling the same A double-insulated transformer of the coaxial type comprises a core assembly having a center core, a primary winding assembly assembled to surround coaxially the center core which has a primary bobbin case, a primary coil winding wound around the bobbin c... | 04/06/1993 |
| 5198790 | Electrical transducer A transducer is disclosed for detecting an electrical pulse from a circuit and for generating an output signal in response to each pulse. The transducer includes a first electric coil having two ends adapted for connection with the circuit and a second el... | 03/30/1993 |
| 5161088 | Transformer assembly with exposed hollow housings, and multiple coils A transformer assembly (10) for use as a self-contained auxiliary power supply in complex machine tool applications is disclosed as having a core (16) with a first side (18), a second side (20) and a plurality of coils (21, 22, 23). Attached to the first ... | 11/03/1992 |
| 5051867 | Transformer assembly with exposed laminations and hollow housings A transformer assembly (10) for use as a self-contained auxiliary power supply in complex machine tool applications is disclosed as having a core (16) with a first side (18) and a second side (20). Attached to the first side (18) of the core (16) is a fir... | 09/24/1991 |
| 4988968 | Double insulated transformer and bobbin case thereof A bobbin case for use in a transformer of the double-insulated type comprises an insulating member of tube-like shape, a partition wall disposed substantially normal to the axis of the insulating member so that the inner space of said insulating member is... | 01/29/1991 |
| 4956745 | Transformer assembly with exposed laminations and hollow housings A transformer assembly (10) for use as a self-contained auxiliary power supply in complex machine tool applications is disclosed as having a core (16) with a first side (18) and a second side (20). Attached to the first side (18) of the core (16) is a fir... | 09/11/1990 |
| 4939494 | Surface-mounted-type inductance element A surface-mounted-type inductance element comprising a coil structure having a bobbin; the bobbin including a portion around which wires are coiled, a pair of flanges integrally formed at opposing ends of the bobbin, a pair of bases integrally formed at l... | 07/03/1990 |
| 4926152 | Ignition coil assembly for internal combustion engine An ignition coil assembly for internal combustion engine has a voltage withstanding air gap of a predetermined shape and an insulating resin cover for covering the external iron core provided in addition to resin mold and partitioning wall in order to ele... | 05/15/1990 |
| 4812798 | Electric transformer for microwave ovens The invention provides an electric transformer for microwave ovens including a conventional magnetic circuit with three columns, and electric circuits insulated by carcases and covers made from an insulating material. The secondary carcase forms a particu... | 03/14/1989 |
| 4763094 | Ignition coil assembly for internal combustion engines An ignition coil assembly for an internal combustion engine includes at least one first laminated core contained in a housing and having a plurality of first magnetic path connection end faces exposed to the inside of the housing, and at least one second ... | 08/09/1988 |
| 4684882 | Electrical transformer having a solid core surrounding winding in a loop configuration An electrical transformer having a rectangular core of solid magnetic material, forming a circular or rectangular-section shell in which primary and secondary windings are located. The corners of the core may be open to lighten the transformer and increas... | 08/04/1987 |
| 4642596 | Miniaturized transformer A miniaturized transformer which is constructed so that lead wires of a coil are first upwardly led out of the coil and then downwardly extended to be used as terminals for the transformer.... | 02/10/1987 |
