| Patents for H01F 30 - Fixed transformers not covered by group (4,595) |
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| 09/05/2007 | EP1829063A1 Two part transformer core, transformer and method of manufacture |
| 09/05/2007 | CN200944532Y Electric vehicle series battery group charger |
| 09/05/2007 | CN200944346Y Transformer with connector |
| 08/29/2007 | CN200941334Y Frame structure of railway high voltage traction transformer |
| 08/29/2007 | CN101026342A Transformer and rectifier double circuit integrating device |
| 08/28/2007 | US7260883 Method for forming a winding for a three-phase transformer |
| 08/22/2007 | CN2938563Y Oil-immersed pressure reducer for motor |
| 08/22/2007 | CN2938353Y T-shaped reel high leakage inductance transformer structure |
| 08/22/2007 | CN2938348Y Filament transformer of X-ray tube |
| 08/22/2007 | CN1333412C Magnetic core and magnetic field shielding component and coil, transformer, electronic apparatus and camera device |
| 08/22/2007 | CN101022054A Transformer structure |
| 08/15/2007 | EP1344231B1 Transformer providing low output voltage |
| 08/15/2007 | CN101017731A 变压器 Transformer |
| 08/15/2007 | CN101017730A Transformer structure |
| 08/08/2007 | CN2932590Y Transformer with a novel structure |
| 08/08/2007 | CN1331292C Allocation transformer equipment |
| 08/08/2007 | CN101013627A Method for increasing balancing winding effect of three phase transformer with output |
| 08/07/2007 | US7253383 Transformer assembly for microwave oven, method for manufacturing the same, and microwave oven having the same |
| 08/02/2007 | US20070176721 Inductance variable device |
| 08/01/2007 | CN2929930Y Double voltage anti-stealing electricity transformer |
| 08/01/2007 | CN101009154A A high-density and high current transformer structure |
| 07/26/2007 | US20070171022 Transformer |
| 07/25/2007 | CN2926559Y Igniter coil |
| 07/25/2007 | CN101004970A Transformer |
| 07/25/2007 | CN101004969A Transformer and driving circuit using said transformer |
| 07/18/2007 | EP1808872A2 Clamping, compacting and lifting system for electric transformers and reactors |
| 07/18/2007 | CN2924741Y Toroidal transformer fixing seat |
| 07/12/2007 | US20070158341 Transformer assembly for microwave oven, method for manufacturing the same, and microwave oven having the same |
| 07/11/2007 | EP1597739B1 Insulating element, toroidal core, toroidal core choke, and method for producing said toroidal core choke |
| 07/11/2007 | CN2922084Y Multi-current ratio, high-accuracy organic compound insulation dry-type high voltage current mutual inductor |
| 07/11/2007 | CN2922083Y 变压器 Transformer |
| 07/11/2007 | CN1998055A Planar high voltage transformer device |
| 07/11/2007 | CN1326325C Power modulator |
| 07/05/2007 | WO2007074710A1 Power conversion device and power conversion system |
| 07/04/2007 | CN2919484Y No-noise low-magnetic-leakage power supply transformer |
| 07/04/2007 | CN1992107A Structure of voltage transformer driving a plurality of tubes |
| 06/27/2007 | CN1989580A Multi-voltage power transformer for the high-voltage electricity transmission network |
| 06/27/2007 | CN1988075A Power transformer combined with balance winding and its application circuit |
| 06/26/2007 | US7236078 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| 06/21/2007 | WO2007069936A1 Method and device for generating electric power by means of energy of ferromagnet magnetic field |
| 06/21/2007 | WO2007069403A1 Composite transformer and insulated switching power supply |
| 06/20/2007 | EP1797573A1 Toroidal core transformer |
| 06/20/2007 | CN2914279Y 组合变压器 Transformer combination |
| 06/14/2007 | WO2007066645A1 Switching transformer |
| 06/14/2007 | US20070132535 Electromagnetic device, high-voltage generating device, and method for making the electromagnetic device |
| 06/13/2007 | CN2911908Y Vv coupled and combined traction transformer |
| 06/13/2007 | CN1979704A Transformer and its producing method |
| 06/07/2007 | US20070126546 Current Transformer Core And Method For Producing A Current Transformer Core |
| 06/06/2007 | EP1792387A1 Ac/dc converter for aeronautics |
| 06/06/2007 | CN2909480Y Transformer of converter |
| 05/30/2007 | EP1252698B1 Inherently short-circuit-proof power distribution system |
| 05/30/2007 | CN2906861Y Overlapped dry type resin insulated transformer |
| 05/30/2007 | CN2906860Y 换流变压器 Converter transformer |
| 05/30/2007 | CN1971779A 分布式电感 Distributed inductance |
| 05/30/2007 | CN1971778A Single-phase self-coupling on-load voltage-regulating transformer |
| 05/30/2007 | CN1319082C Panel mounting type choke coil |
| 05/29/2007 | US7225018 Flyback transformer wire attach method to printed circuit board |
| 05/23/2007 | CN2904240Y Double magnetic path three reel four path bias light transformer |
| 05/23/2007 | CN2904238Y Flat-wise high-frequency high-voltage transformer |
| 05/23/2007 | CN1967746A Magnetic element |
| 05/16/2007 | CN1965380A 变压器 Transformer |
| 05/16/2007 | CN1316522C N-layer magnetic core I-type thin-film transformer array and its preparing method |
| 05/15/2007 | US7218534 Switching power supply circuit |
| 05/10/2007 | US20070103952 Booster transformer for driving magnetron and transformer unit having the booster tranformer |
| 05/09/2007 | EP1782441A1 Planar high voltage transformer device |
| 05/09/2007 | CN2899061Y Star-double ladder grounded three or four-phase change or three-two phase balancing transformer |
| 05/09/2007 | CN2899055Y Capacity-adjusting transformer |
| 05/02/2007 | CN2896787Y High-performance xenon lamp dc. power supply |
| 05/02/2007 | CN2896470Y Isolation-type control transformer |
| 05/02/2007 | CN2896469Y Wind electric-field collected transformer fitted on ground |
| 05/02/2007 | CN1313772C Microwave oven and temperature sensitive switch, and transformer assembly for microwave oven |
| 04/26/2007 | DE102005051038A1 Electrical ring core transformer has a spacer element between primary and secondary coils to provide an integrated filter function |
| 04/25/2007 | CN2893886Y Transformer with improved structure |
| 04/25/2007 | CN1954394A Current transformer core and method for producing a current transformer core |
| 04/19/2007 | WO2007043309A1 Multilayer coil component |
| 04/18/2007 | EP1775740A1 Multi-voltage power transformer for a high-voltage electric power transmission network (politrafo) |
| 04/18/2007 | CN2891238Y Transformer structure with double magnetic circuits, four channels, and double winding drums |
| 04/18/2007 | CN2891236Y Power supply unit applicable in moist environment |
| 04/18/2007 | CN1949418A Power apparatus and transformer thereof |
| 04/18/2007 | CN1949417A Transformer of lamp tube driver and method for regulating lamp tube brightness thereof |
| 04/18/2007 | CN1949400A Transmission line |
| 04/18/2007 | CN1949399A Conductor |
| 04/11/2007 | CN2888622Y Three-phase three-column controlling transformer |
| 04/11/2007 | CN2888621Y Single-phase double-column controlling transformer |
| 04/11/2007 | CN2888620Y Single-phase single-column controlling transformer |
| 04/11/2007 | CN2888619Y Structure of balancing transformer |
| 04/11/2007 | CN2888611Y Electric power transformer |
| 04/05/2007 | US20070075818 Inductive coupler |
| 04/05/2007 | US20070075811 Method of controlling effective impedance in a superconducting cable |
| 04/04/2007 | CN2886770Y Transformer specifically for wind power electricity-generation |
| 04/04/2007 | CN2886767Y Novel coiled iron core overhead single-phase transformer |
| 04/04/2007 | CN1941228A Inverting transformer |
| 04/04/2007 | CN1309160C Noise filter |
| 03/29/2007 | WO2007035111A1 Stabilizing winding for mvb in tn and tt grids |
| 03/28/2007 | EP1766746A1 Method and equipment for the protection of power systems against geomagnetically induced currents |
| 03/28/2007 | CN2884466Y Unit structure of single-phase rail-way tractive transformer |
| 03/28/2007 | CN2884465Y High power switch power-source transformer |
| 03/28/2007 | CN2884453Y Non-crystalline alloy single-phase transformer |
| 03/28/2007 | CN1937117A Transformer with wound single unit |
| 03/28/2007 | CN1307663C Transformer structure |