H01F 30 - Fixed transformers not covered by group

Patents for H01F 30 - Fixed transformers not covered by group (4,595)
10/2002
10/02/2002	CN1372276A Coil element and making method thereof
09/2002
09/25/2002	CN2513210Y Back type thee phase rectification transformer
09/25/2002	CN1371105A Transformer
09/24/2002	US6456184 Reduced-cost core for an electrical-power transformer
09/24/2002	US6456180 Line interface transformer
09/19/2002	WO2002073642A1 Planar coil and planar transformer
09/19/2002	US20020130751 Auxiliary wiring structure for strabilizer
09/19/2002	US20020130649 Frequency converter system having a damper device with a general complex impedance for damping undesirable resonant oscillations in a tuned circuit formed by at least one input-side inductance and parasitic distributed capacitances
09/19/2002	DE10155450A1 Drehstromtransformator vom Baugruppentyp Three-phase transformer package type
09/18/2002	EP1101258A4 High pulse rate pulse power system
09/12/2002	US20020125978 Three-phase current transformer
09/11/2002	CN1090799C Equivalent balanced transformer
09/04/2002	CN1367505A Embedded transformer
08/2002
08/28/2002	CN2508367Y Secondary single-winding V/I joined three-phase/single-phase transformer
08/22/2002	WO2000005786A3 Power cord provided with a power cord transformer
08/22/2002	US20020113680 Coil component and method for manufacturing the same
08/22/2002	US20020113679 Transformer apparatus
08/22/2002	EP1145388A3 Power cord provided with a power cord transformer
08/21/2002	CN2507115Y All sealed wound iron core transformer
08/20/2002	US6437677 Multi-layered inductor array
08/20/2002	US6437516 Unsaturating transformer, an electronic ballast using the transformer, and a self-ballasted
08/15/2002	WO2002023563A3 Advanced electronic microminiature coil and method of manufacturing
08/08/2002	WO2002061772A1 Induction winding
08/01/2002	WO2002059918A1 Wire core inductive devices having a flux coupling structure and methods of making the same
08/01/2002	WO2002059916A1 Inductive devices having a wire core with wires of different shapes and methods of making the same
08/01/2002	WO2002059915A2 Wire core inductive devices having a biassing magnet and methods of making the same
08/01/2002	WO2002059914A2 Toroidal inductive devices and methods of making the same
08/01/2002	CA2435249A1 Wire core inductive devices having a biassing magnet and methods of making the same
08/01/2002	CA2435246A1 Wire core inductive devices having a flux coupling structure and methods of making the same
08/01/2002	CA2435234A1 Inductive devices having a wire core with wires of different shapes and methods of making the same
08/01/2002	CA2435230A1 Toroidal inductive devices and methods of making the same
07/2002
07/31/2002	CN2503583Y Screened toroidal transformer
07/31/2002	CN2503582Y Harmonic screened balancing transformer
07/25/2002	US20020097593 Step-up transformer
07/25/2002	US20020097130 Transformer with controlled interwinding coupling and controlled leakage inductances and circuit using such transformer
07/24/2002	EP1224673A1 Earth cooled distribution transformer system and method
07/23/2002	US6424696 X-ray catheter using a step-up transformer
07/23/2002	US6424247 Inverter transformer
07/16/2002	US6420953 Multi-layer, multi-functioning printed circuit board
07/11/2002	US20020089403 Method for forming a resin molding for a coil of a transformer
07/11/2002	US20020089085 High voltage transformer for microwave oven and method of manufacturing therefor
07/10/2002	CN1357897A Great-current HF transformer
07/03/2002	EP1220243A2 Electrical steel sheet for low-noise transformer and low-noise transformer
07/03/2002	CN1357147A Wire core inductive devices
07/02/2002	US6414581 Air core transformer with coaxial grading shield
07/02/2002	US6414579 Current transformer and method for correcting asymmetries therein
07/02/2002	US6414291 Transformer for a microwave oven
06/2002
06/27/2002	WO2002050851A1 Transformer providing low output voltage
06/26/2002	CN2497413Y Gear-increasing under-load voltage-regulating transformer installation
06/20/2002	US20020075712 Transformer providing low output voltage
06/20/2002	US20020075116 System, printed circuit board, charger device, user device, and apparatus
06/13/2002	WO2002025797A3 Electronic transformer/inductor devices and methods for making same
06/13/2002	US20020070836 High-frequency large current handling transformer
06/13/2002	US20020070835 Multi-layer, multi-functioning printed circuit board (pcb) with integrated magnetic components
06/13/2002	US20020070831 Electronic transformer/inductor devices and methods for making same
06/06/2002	DE10058080A1 Mittelfrequenztransformator Medium-frequency transformer
06/04/2002	US6400249 Transformer providing low output voltage
05/2002
05/30/2002	WO2002043085A1 Medium frequency transformer
05/30/2002	WO2002043084A1 System, printed circuit board, charger device, user device, and apparatus
05/30/2002	US20020064062 Power conversion systems utilizing wire core inductive devices
05/16/2002	US20020057182 Current transformer and method for correcting asymmetries therein
05/16/2002	US20020057180 Amorphous metal core transformer
05/16/2002	US20020057175 Transformer and electrical device using the same
05/16/2002	US20020057162 Current transformer and method for correcting asymmetries therein
05/16/2002	DE10050441C1 High current DC rectifier uses electrical transformer having additional core features
05/15/2002	CN2491953Y Transformer
05/15/2002	CN1349232A Detachable transformer
05/02/2002	US20020050905 Inductance component in which a permanent magnet for applying a magnetic bias is arranged outside an excitation coil
05/02/2002	US20020050894 Magnetic core and deflection yoke having the same
04/2002
04/30/2002	US6380836 Coil device and switching power supply apparatus using the same
04/24/2002	CN1346137A Battery for hand curred device electricity recharge
04/23/2002	US6377153 Transformer apparatus for use in insulated switching power supply apparatus with reduction of switching noise
04/18/2002	US20020044433 Converter device
04/17/2002	EP1196968A1 Coaxial laser pulser with solid dielectrics
04/17/2002	CN2487086Y Magnetic energy power generator
04/16/2002	US6373736 Isolated converter
04/11/2002	US20020041176 Battery apparatus for charging portable device
04/11/2002	DE10147992A1 Batterievorrichtung zum Laden einer tragbaren Einrichtung The battery apparatus for charging a portable device
04/10/2002	CN2485764Y Transformer
04/10/2002	CN1343994A Inductance componnet having permanent-magnet for applicating magnetic deflection outside of exciting coil
04/09/2002	US6370043 Switching power supply circuit formed as a composite resonance converter
04/03/2002	CN1342987A Magnetically conductive electric power unit
03/2002
03/28/2002	WO2002025797A2 Electronic transformer/inductor devices and methods for making same
03/21/2002	WO2002023563A2 Advanced electronic microminiature coil and method of manufacturing
03/21/2002	WO2002023561A1 Electromagnetic device and high-voltage generating device and method of producing electromagnetic device
03/21/2002	US20020033748 Transformer
03/20/2002	EP1135782A4 Wire core inductive devices
03/19/2002	US6359539 Magnetic core and deflection yoke having the same
03/14/2002	US20020030961 Electronic device
03/13/2002	EP1187150A1 Inductance component in which a permanent magnet for applying a magnetic bias is arranged outside an excitation coil
03/13/2002	CN2482198Y Insulation clamping ring of power transformer
03/12/2002	US6356180 High-voltage generating transformer
03/12/2002	US6355992 High voltage pulse generator
03/07/2002	DE10139071A1 Wandlervorrichtung Conversion device
03/06/2002	CN2480961Y Three-phase changed into single-phase balance transformer
02/2002
02/27/2002	EP1181847A1 High-voltage transformer and electrodynamic particle accelerator
02/27/2002	CN1337721A Transformer
02/20/2002	CN2478214Y Annular type three-phase transformer
02/19/2002	US6348848 Transformer having fractional turn windings
02/14/2002	WO2001075911B1 A multiphase induction device

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