Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
10/1999
10/28/1999DE19818673A1 Spule Coil
10/28/1999DE19812607A1 Heat dissipative enclosure for fluid-cooled transformers
10/27/1999CN2346047Y Multi-stage foil winding capable of continuous coiling
10/27/1999CN2346046Y Bell-jar box for easy dismounted transformer and on-load switch
10/27/1999CN1233342A Magnetic core structure
10/26/1999US5973923 Packaging power converters
10/26/1999US5973583 Core assembly for coil units and method for producing the same
10/26/1999US5973390 Chip electronic part
10/26/1999US5973307 High voltage transformer with side insulation support and formed with through-holes for lead wires
10/21/1999WO1999053508A1 Support for electronic components
10/21/1999DE19915866A1 Miniature transformer with cover for conventional electronic devices
10/21/1999DE19816650A1 Electric transformer with hermetic construction useful as mast transformer
10/21/1999DE19815852A1 Trägerkörper für elektronische Bauelemente Body for electronic components
10/21/1999CA2327796A1 Support for electronic components
10/20/1999EP0950277A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
10/20/1999EP0950276A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
10/20/1999EP0950252A1 Wire-wound inductors
10/20/1999EP0950251A1 Continuous method of manufacturing wire wound inductors and wire wound inductors thereby
10/20/1999EP0950120A1 Process for the treatment of grain oriented silicon steel
10/20/1999EP0950119A1 Process for the production of oriented-grain electrical steel sheet with high magnetic characteristics
10/20/1999EP0950118A1 Process for the production of grain oriented silicon steel sheet
10/20/1999CN2344852Y Conductor terminal quick-combining mechanism of feedback transformer
10/20/1999CN2344851Y Y-type drawplate type taper key hold-down gag for dry type transformer
10/20/1999CN1232572A Planar transformer
10/19/1999US5969590 Integrated circuit transformer with inductor-substrate isolation
10/19/1999US5969456 Electromagnetic equipment
10/19/1999CA2146474C Solid insulation transformer
10/19/1999CA1340795C Magnetic ribbon and magnetic core
10/14/1999WO1999039359A3 Electric ballast
10/14/1999DE19814897A1 Inductive high-power component for frequency range above 1 kHz
10/14/1999DE19809572A1 Resin=cast transformer
10/13/1999WO1999053507A1 Cores and coils for electrical transformers
10/13/1999EP0949634A1 Multilayer insulated wire and transformers made by using the same
10/13/1999EP0773979B1 Single- or two-component reaction adhesive
10/13/1999CN2343741Y Combined signal transformer box
10/13/1999CN2343657Y Improved ballast
10/13/1999CN2343656Y High-voltage baffler structure for transformer
10/13/1999CN2343655Y Winding frame withstand voltage structure for tranformer
10/13/1999CA2328193A1 Cores and coils for electrical transformers
10/07/1999WO1999050859A1 Amorphous metal transformer having a generally rectangular coil
10/07/1999WO1999050858A1 Separation type transformer core
10/07/1999DE19821773C1 Temperature measuring instrument esp. for oil in transformer and stepping switches
10/07/1999CA2326147A1 Amorphous metal transformer having a generally rectangular coil
10/06/1999EP0948002A2 Container for a ring core transformer, preferably for a ground fault circuit interrupter
10/06/1999CN2342501Y Energy saving anti-theft integrated transformer
10/06/1999CN2342450Y Integrated power transformer
10/06/1999CN2342449Y 高压变压器 High-voltage transformers
10/06/1999CN1231094A Pulse transformer for U-shape interfaces operating according to echo compensation principle
10/06/1999CN1231057A Coil
10/06/1999CN1230757A Method for producing casting resin transformer
10/06/1999CN1230756A Surface mounting coil
10/05/1999US5963119 Electric component having conductor film formed on insulative base
10/05/1999US5963118 Electromagnetic coil and manufacturing apparatus for the same
10/05/1999US5962945 For windings of electrical devices and machines
10/05/1999US5962540 One-component or two-component reactive adhesive
10/05/1999CA2179248C Fall restraint anchoring device
09/1999
09/30/1999WO1999049513A1 An inductance device
09/30/1999WO1999049481A1 Dry-type transformer having a generally rectangular, resin encapsulated coil
09/30/1999DE19812836A1 Inductive miniature component for SMD assembly
09/30/1999CA2326328A1 Dry-type transformer having a generally rectangular, resin encapsulated coil
09/30/1999CA2325535A1 An inductance device
09/29/1999EP0945880A2 Surface-mount coil
09/29/1999EP0945879A1 Integral corrugated pannel for immersed electrical transformer tank
09/29/1999CN2341304Y Thysistor frequency dividing oscillation eliminator
09/29/1999CN2341251Y Special wire clipper for transformer
09/29/1999CN2341250Y R type core transformer for railway signals
09/29/1999CN2341249Y Oil storing tank with fully sealed film
09/28/1999US5959523 Magnetic core structure
09/28/1999US5959521 High-voltage transformer and a vehicle-lamp lighting-on device using the same
09/28/1999US5958153 High frequency electric power transformer core comprising iron-boron-silicon-carbon alloy also containing phosphorus, manganese, sulfur impurities; low core loss, high flux density
09/23/1999WO1999048198A1 Device for absorbing electric noise
09/23/1999WO1999022565A8 Planar magnetic component with transverse winding pattern
09/23/1999DE19906261A1 Sheet transformer
09/23/1999DE19812244A1 Use of a two-component mixture in a transformer fluid in non-breathing transformers
09/23/1999DE19812243A1 Housing for dry transformer, with air cooling
09/23/1999DE19811048A1 Absorber of electric noise
09/23/1999DE19810446A1 Energy distribution station with display cabinet or roof garden
09/22/1999EP0944101A1 Bus-bar device and electrical feed-through
09/22/1999EP0944099A1 Multilayer insulated wire and transformer using the same
09/22/1999CN2340072Y Material-saving transformer
09/22/1999CN2340071Y Cooling-circulating structure for secondary copper conductive seat
09/22/1999CN2340070Y Neon lamp transformer packaged with ceramic body
09/22/1999CN1229516A Coil to be mounted on circuit board and structure mounting the same on circuit board
09/21/1999US5954988 High voltage transformer of a microwave oven having a structure for radiating heat
09/15/1999EP0942529A1 High frequency signal distributor
09/15/1999EP0942442A2 Transformer station with compact construction
09/15/1999EP0941567A1 Coating agent for producing an electric insulating coating on an electro steel sheet
09/15/1999EP0941544A1 Improvements in and relating to coils
09/15/1999EP0941543A1 Electrode for field control
09/15/1999CN2338861Y Multiple flat conductor composite electromagnetic wire
09/15/1999CN2338860Y Core structure of transformer
09/14/1999US5952909 Multi-layered printed-coil substrate, printed-coil substrates and printed-coil components
09/14/1999US5952907 Electrical device
09/14/1999US5952617 Power transformer and coupling means
09/14/1999US5950830 Packaging for patches
09/14/1999CA2184731C An electrically controllable inductor
09/13/1999CA2232080A1 Low profile headerless smt compatible magnetics package
09/10/1999WO1999033111A3 Thin-film component comprising a substrate with an elastic coating
09/10/1999WO1999033074A3 Switch gear station
09/08/1999EP0940687A2 Open magnet with shielding