Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 27 - Details of transformers or inductances, in general
Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
07/2002
07/04/2002US20020084882 Dust core
07/04/2002US20020084881 Inductive component and manufacturing process for such a component
07/04/2002US20020084879 Method of manufacturing an electrical-power transformer
07/04/2002US20020084878 Common mode choke coil
07/04/2002US20020084098 High frequency-resistant insulated winding wires
07/04/2002DE10162954A1 Verfahren und Herstellung eines elektrischen Leistungstransformators A method and manufacturing an electrical power transformer
07/03/2002EP1220244A2 Ignition coil for use in engine and engine having plastic cylinder head cover
07/03/2002EP1220243A2 Electrical steel sheet for low-noise transformer and low-noise transformer
07/03/2002EP1220242A1 Common mode choke coil
07/03/2002EP1220240A1 Insulating material, electric winding, and method of manufacture thereof
07/03/2002EP1218896A1 Split inductor with fractional turn of each winding and pcb including same
07/03/2002CN2498720Y Radiator for transformer
07/03/2002CN1357148A Simplified laminar core transofrmer and method of mfg.
07/03/2002CN1357147A Wire core inductive devices
07/03/2002CN1356703A Laminated and riveted plug-in iron core
07/02/2002US6414579 Current transformer and method for correcting asymmetries therein
07/02/2002US6414291 Transformer for a microwave oven
06/2002
06/29/2002CA2364643A1 Method of manufacturing an electrical-power transformer
06/27/2002WO2002050850A2 Integrated switch with rf transformer control
06/27/2002WO2002050849A1 Choke coil
06/27/2002WO2002050848A2 Planar inductor with segmented conductive plane
06/27/2002US20020080002 Microwave inductor with poly-iron core configured to limit interference with transmission line signals
06/27/2002US20020080001 Common mode choke coil
06/27/2002US20020080000 Method and apparatus for making a transformer core from amorphous metal ribbons
06/27/2002US20020079999 Coil and method for making same
06/27/2002US20020079131 Wrapped film sealing system for electrical equipment
06/27/2002DE10055178C1 Verfahren zum Kontaktieren eines Wicklungsdrahtes einer Spule mit einem Anschlussstift A method of contacting a winding wire of a coil with a connecting pin
06/26/2002CN2497413Y Gear-increasing under-load voltage-regulating transformer installation
06/26/2002CN2497411Y 电子变压器 Electronic Transformer
06/26/2002CN2497410Y Foil-wound resin insulated dry-type transformer low voltage coil
06/26/2002CN2497409Y Foil-wound resin casting dry-type transformer high-voltage coil
06/26/2002CN2497408Y Reformed transformer
06/26/2002CN2497407Y Combined transformer iron-core
06/26/2002CN2497406Y Adjustable transformer rectifier having frame forming gas passage
06/26/2002CN2497405Y Flame-proof dry-type transformer box for mine
06/26/2002CN2497404Y Transofrmer oil-sample valve spiral sampler
06/26/2002CN1355542A Laminated electric parts
06/26/2002CN1086848C Antenna coil
06/25/2002US6411528 Switching power circuit and insulating converter transformer
06/25/2002US6411188 Amorphous metal transformer having a generally rectangular coil
06/25/2002US6409144 Solenoid valve with integrated yoke and bobbin
06/20/2002WO2002049194A2 Modularized power supply
06/20/2002WO2002049049A1 High voltage transformer with over voltage protection, and method for over voltage protection
06/20/2002WO2002049048A2 Multi-layer and user-configurable micro-printed circuit board
06/20/2002WO2000074090A9 Simplified laminar core transformer and method of manufacturing
06/20/2002US20020076536 Electronic component and method of manufacturing the same
06/20/2002US20020075757 Device for fixing the magnetic coil of drive unit
06/20/2002US20020075612 High voltage transformer with over voltage protection, and method for over voltage protection
06/20/2002US20020075120 Embedded transformer
06/20/2002US20020075119 Module for matrix transformers having a four turn secondary winding
06/20/2002US20020075118 Inductor arrangement
06/20/2002US20020075117 Continuous multi-turn coils
06/20/2002US20020075116 System, printed circuit board, charger device, user device, and apparatus
06/20/2002US20020075115 Transformer bobbin
06/20/2002US20020075112 Bead inductor and method of manufacturing same
06/20/2002US20020074620 Planar inductor with segmented conductive plane
06/20/2002DE10062774A1 Output transformer for converting power, has core, a higher harmonic voltage winding and undervoltage winding all with cylindrical conductors
06/20/2002DE10060520A1 Vorrichtung zur Messung der Kernpressung in einem Leistungstransformator Device for measuring the pressure in a nuclear power transformer
06/19/2002CN2496121Y Device for preventing fraudulent use of electricity on primary wire inlet and outlet end of current mutual inductor used for high-voltage electric energy metering apparatus
06/19/2002CN2496119Y Box-type transformser used for electrical under water pump
06/19/2002CN2496118Y Power-factor adjustable transformer
06/19/2002CN2496117Y Forced oil circulating air cooler
06/19/2002CN1354883A Capacitively controlled high-voltage winding
06/19/2002CN1354485A Inductance coil element of permanent magnet near magnetic gap
06/19/2002CN1086502C Eddy current shielding apparatus and three phase transformer
06/19/2002CN1086492C Detection tag
06/18/2002US6407655 Wound core for toroidal transformer
06/18/2002US6406557 Process for the treatment of grain oriented silicon steel
06/13/2002WO2002047096A1 Device for measuring core pressure in a power transformer
06/13/2002US20020070837 Variable inductor
06/13/2002US20020070836 High-frequency large current handling transformer
06/13/2002US20020070835 Multi-layer, multi-functioning printed circuit board (pcb) with integrated magnetic components
06/13/2002US20020070834 Multi-layer and user-configurable micro-printed circuit board
06/13/2002US20020070833 Structure of transformer bobbin assembly having multiple step pin rows
06/13/2002US20020070832 Bobbin for a transformer
06/13/2002US20020070830 Transformer cooling method and apparatus thereof
06/13/2002US20020070724 Method and apparatus for compensation of current transformer error
06/13/2002DE10065041A1 Elektronischer Transformator Electronic transformer
06/12/2002EP1213833A1 Choke coil
06/12/2002EP1212760A1 Superconducting magnetic coil
06/12/2002CN2495019Y Transformer against fraudulent use
06/12/2002CN2495018Y Power transformer output terminal protection metering box
06/11/2002US6404318 Multilayer inductor and production method thereof
06/11/2002US6404317 Planar magnetic element
06/11/2002US6404316 Magnetic device and method of manufacture therefor
06/11/2002US6404315 Surface-mount air-core coil, electronic component having the same, and communication apparatus having the same
06/11/2002US6401518 Fluid filled electrical device with diagnostic sensor located in fluid circulation flow path
06/06/2002WO2002045103A1 Ferrite core
06/06/2002WO2002025673A3 Method and apparatus for forming a magnetic component on a printed circuit board
06/06/2002WO2000073011A8 Welding system
06/06/2002US20020067239 Segmented transformer core
06/06/2002US20020067238 Inductance element and preparation method thereof
06/06/2002US20020067237 Choke coil
06/06/2002US20020067236 High-Q inductor for high frequency
06/06/2002US20020067235 High Q spiral inductor
06/06/2002US20020067234 Compact surface-mountable inductors
06/06/2002US20020067232 Inductor and manufacturing method therefor
06/06/2002DE10058080A1 Mittelfrequenztransformator Medium-frequency transformer
06/06/2002DE10057606A1 Arrangement for contacting planar transformer ferrite core with earth has conducting track structure(s) on circuit board surface facing core; core and circuit board are joined by adhesive
06/06/2002CA2430165A1 Ferrite core
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