Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
10/2001
10/04/2001DE19960474A1 Transformer for galvanic separation between 2 current circuits has 2 identical coils arranged in exact symmetry to one another
10/03/2001CN2452108Y Single-phase voltage transformer body structure
10/03/2001CN2452107Y Metering electric power voltage transformer
10/03/2001CN2452106Y High-voltage wiring terminal safety protective casing
10/03/2001CN2452105Y Double-glass fibre coating electromagnetic wire
10/03/2001CN2452104Y Inductor magnetic core
10/03/2001CN2452103Y Open ventilating dry type transformer
10/03/2001CN2452102Y Transverse flow multistage regulating air cooling apparatus for dry type transformer
10/03/2001CN1316173A Magnetron drive step-up transformer and transformer of magnetron drive power supply
10/03/2001CN1315736A Transformer
10/02/2001US6297721 Electronic surface mount package
10/02/2001US6297720 Electronic surface mount package
10/02/2001US6297614 Charging paddle
10/02/2001US6297593 Boosting transformer for high-frequency heating device
10/02/2001US6296935 Heat resistance, solderability, and coilability; electrical properties, reliability
09/2001
09/27/2001WO2001071736A1 Tansformer with molded flanges and method
09/27/2001US20010024739 Surface mounting type planar magnetic device and production method thereof
09/27/2001US20010024152 Electromagnetic induction device
09/27/2001US20010023756 Assembled structure having an enlarged heat transfer area for heat radiation therefrom
09/27/2001US20010023530 Integrated circuit inductors
09/26/2001EP1135782A1 Wire core inductive devices
09/26/2001CN2450759Y Transformer core forming structure
09/26/2001CN2450758Y Dry detachable silicone rubber sleeve of test transformer
09/26/2001CN1314684A Tap converter
09/26/2001CN1314683A Equipment for clearing noise of electromagnetic device
09/26/2001CN1314682A Surface mounting coil
09/25/2001US6294976 Complex electronic component having a plurality of devices formed side by side in a ceramic material
09/25/2001US6294975 Transformer bobbin with hipot-protect structure
09/25/2001US6294974 Ignition coil for internal combustion engine, and method of manufacturing an ignition coil
09/20/2001WO2001069614A1 Electronic low-voltage neon transformer device
09/20/2001US20010022548 Transformer having insulation means formed by a mounting plate suitable for a printed circuit
09/20/2001US20010022547 Multilayer inductor
09/20/2001US20010022019 Integrated circuit inductors
09/20/2001DE10111789A1 Multilayer inductor has groove in core which ensures each connection electrode is insulated from other connection electrodes
09/20/2001DE10013206A1 Electric transformer for LV halogen lamp has one winding provided by conductor hoops with their arms fitting into channels provided by coil body
09/20/2001DE10010737A1 Radiator for transformer, comprises two sheet metal plates coupled in every second groove, so that volume of cavities can be increased by number of bulges
09/19/2001EP1134961A2 Bell transformer
09/19/2001EP1134755A1 Toroidal choking coil
09/19/2001EP1133779A1 Transformer, especially a resin-encapsulated transformer
09/19/2001EP1133778A1 Transformer
09/19/2001CN1313993A Electronic component, and electronic apparatus in which the electronic component is mounted and its manufacturing method
09/19/2001CN1313613A Moulded resin transformers and manufacture thereof
09/19/2001CN1313612A Inductors and manufacture thereof
09/19/2001CN1313611A Moulded electromagnetic coils and manufacture thereof
09/19/2001CN1313610A Coil stuck thermally by plastics and its making method and mould
09/18/2001US6292084 Fine inductor having 3-dimensional coil structure and method for producing the same
09/18/2001US6292083 Surface-mount coil
09/18/2001US6292081 Tunable surface mount toroidal inductor
09/18/2001US6292079 Coil assembly of speaker
09/18/2001US6292069 Loosely coupled rotary transformer having resonant circuit
09/13/2001US20010020887 Toroidal choking coil
09/13/2001US20010020886 Coil device and switching power supply apparatus using the same
09/13/2001DE10108282A1 Elektromagnetische Spulenanordnung für einen elektromagnetischen Apparat Electromagnetic coil assembly for an electromagnetic apparatus
09/12/2001EP1131830A1 Magnetic core that is suitable for use in a current transformer, method for the production of a magnetic core and current transformer with a magnetic core
09/12/2001CN2447963Y 10 KV transformer monkey connection insulating device
09/12/2001CN2447921Y Transformer binding post safety protector
09/12/2001CN2447920Y High-current helical low-tension coil with longitudinal gas channel
09/12/2001CN2447919Y Inner oil type expansion chamber oil-storage cabinet
09/12/2001CN2447905Y Device for fixing magnetic coil
09/12/2001CN1071060C Sheet material for electrical insulation
09/11/2001US6288625 Current transformer for a metal-enclosed gas-insulated high-voltage installation
09/11/2001US6287691 Electrical winding, and a transformer and an electric motor including such a winding
09/07/2001WO2001065574A1 Coil assembly with a circuit board and a coil body
09/07/2001WO2001065572A2 Transformer core
09/06/2001US20010019494 Dc transformer/reactor
09/06/2001US20010018794 Integrated circuit inductors
09/06/2001DE4244961C2 Crack resistant heat-hardenable resin compsns. for coil insulation etc.
09/06/2001DE10009078C1 Planar transformer with multi-layer cores has at least one winding turn of secondary winding passed through only part of winding windows of total number of transformer cores
09/05/2001EP1130673A1 High frequency component and communication apparatus incorporating the same
09/05/2001EP1129518A1 Electric motor
09/05/2001EP1129459A1 Magnetic core that is suitable for use in a current transformer, method for the production of a magnetic core and current transformer with a magnetic core
09/05/2001EP1129458A1 Endless core for a multiphase transformer and a transformer incorporating same
09/05/2001CN2446695Y Oil immersed small box-type converting station with side arranged vacuum switch and built-in lighting arrester
09/05/2001CN2446642Y Iron core fixing sheet of transformer
09/05/2001CN1311513A Electronic parts and mfg. method therefor
09/04/2001US6285272 Low profile inductive component
09/04/2001US6285265 Electric noise absorber housing with convex surface
08/2001
08/30/2001WO2001063636A2 Leakage flux protection for transformer clamping bar
08/30/2001WO2001063629A1 System and method for cooling transformers
08/30/2001US20010017583 Electromagnetic coil assembly for electromagnetic apparatus
08/30/2001US20010017582 Multilayer inductor
08/30/2001US20010017420 Electronic component and manufacturing method thereof
08/30/2001US20010016977 Coil-embedded dust core production process, and coil-embedded dust core
08/30/2001US20010016976 Integrated circuit inductors
08/30/2001CA2401121A1 System and method for cooling transformers
08/29/2001EP1128416A2 Semiconductor device having an inductor
08/29/2001EP1128403A1 Ignition coil for an internal combustion engine
08/29/2001EP1128402A1 Magnetic device employing a winding structure spanning multiple boards and method of manufacture thereof
08/29/2001CN2445412Y Intelligent dry transformer
08/29/2001CN2445411Y Transformer iron chip structure
08/29/2001CN2445410Y Corrugation oil box with diversion device
08/29/2001CN2445409Y Combined transformer box
08/29/2001CN2445180Y Connection structure of cooling pipe for air cooler of transformer
08/29/2001CN1310514A Reactance characteristic regulating method and device for mutual inductor
08/28/2001US6281779 Coil device and switching power supply apparatus using the same
08/28/2001US6281776 Thermally isolating transformer
08/23/2001WO2001061715A1 Magnetic component
08/23/2001US20010015473 Inductance structure on semiconductor substrate
08/23/2001US20010015289 Circuit board with an air-wound coil for vacuum pick-up, surface mounting, and adjusting
08/23/2001US20010015250 Laminated ceramic electronic components and manufacturing method therefor