| Patents for H01F 27 - Details of transformers or inductances, in general (43,362) |
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| 10/07/2009 | CN101552101A Magnetic device with series excitation magnetic core |
| 10/07/2009 | CN101552100A Electric component, especially a transformer or a choke |
| 10/07/2009 | CN101552099A Welder transformer and manufacturing method thereof |
| 10/07/2009 | CN101552098A Transformer for improving the precision of output voltage |
| 10/07/2009 | CN101552097A Transformer oil tank structure |
| 10/07/2009 | CN101552096A Vacuum oil-filling method for electric locomotive core-type transformer and radiator |
| 10/07/2009 | CN101552095A Heat dissipating device of transformer |
| 10/07/2009 | CN101552094A Electronic component |
| 10/07/2009 | CN101552093A Separated power inductor based on a lead frame |
| 10/07/2009 | CN101552092A Inductor, method for constructing amorphous metal magnetic component and production process |
| 10/07/2009 | CN101552091A Metal powder injection molding inductor and processing method thereof |
| 10/07/2009 | CN101552090A High power density low-loss EV type inductor |
| 10/07/2009 | CN101552089A Inductor and manufacture method thereof |
| 10/07/2009 | CN101550971A Field coil assembly of electromagnetic clutch for compressor |
| 10/07/2009 | CN100547703C Reversed phase converter |
| 10/07/2009 | CN100547702C Coil out structure in high voltage in oil immersed type distribution transformer |
| 10/06/2009 | US7598839 Stacked inductive device and methods of manufacturing |
| 10/06/2009 | US7598837 Form-less electronic device and methods of manufacturing |
| 10/01/2009 | WO2009120016A2 Probe card, space transformer for a probe card and a production method of space transformer |
| 10/01/2009 | US20090243785 Reader antenna for use with rfid transponder |
| 10/01/2009 | US20090243782 High Voltage Hold-Off Coil Transducer |
| 10/01/2009 | US20090243777 Multilayer transformer component |
| 10/01/2009 | US20090243776 Multi-output transformer |
| 10/01/2009 | US20090243389 Multiple output magnetic induction unit and a multiple output micro power converter having the same |
| 10/01/2009 | US20090243110 Voltage controlled oscillator |
| 10/01/2009 | DE102007026175B4 Verfahren zur Ermittlung der Alterung eines elektrischen Transformators Method for determining the aging of an electrical transformer |
| 10/01/2009 | DE10000604B4 Zündspule Ignition coil |
| 09/30/2009 | EP2105937A1 Transformer apparatus with shielding architecture and shielding method thereof |
| 09/30/2009 | CN201319305Y Connection structure for reducing phase change of 35 kV transformer in action wave experiment |
| 09/30/2009 | CN201319304Y Porcelain shell for sulfur hexafluoride transformer |
| 09/30/2009 | CN201319303Y High voltage wire-outlet device used for transformer |
| 09/30/2009 | CN201319302Y Reel and high voltage transformer adopting reel |
| 09/30/2009 | CN201319301Y High-voltage transformer for current converter |
| 09/30/2009 | CN201319300Y Leading-out structure of electric furnace transformer secondary side |
| 09/30/2009 | CN201319299Y Integrated high-frequency power low-voltage wiring device for electrical dust removal |
| 09/30/2009 | CN201319298Y Combined five-post core type transformer iron core |
| 09/30/2009 | CN201319297Y Magnetic core heat dissipating device |
| 09/30/2009 | CN201319296Y Transformer wind cooling controller |
| 09/30/2009 | CN201319295Y Antitheft grounding device of distribution transformer |
| 09/30/2009 | CN101548590A Arrangement for reducing the field strength in an electrode |
| 09/30/2009 | CN101548348A Cooling system for a dry-type air-core reactor |
| 09/30/2009 | CN101546932A Rotating electrical machine having high-voltage magnetic circuit and method for manufacturing the same |
| 09/30/2009 | CN101546909A Protective circuit, communication equipment and method for protecting device in communication equipment |
| 09/30/2009 | CN101546646A On-line monitoring oil-gas separation device for transformer |
| 09/30/2009 | CN101546620A Electrical transposed conductor |
| 09/30/2009 | CN101545070A Iron-based soft magnetic powder for dust core, production method thereof, and dust core |
| 09/30/2009 | CN100545966C Harmonic suppressing energy-saving transformer |
| 09/30/2009 | CN100545965C A high temperature super-conduct inductor, its preparing method and its application |
| 09/30/2009 | CN100545964C Transformer spool |
| 09/30/2009 | CN100545963C Evaporative cooling traction transformer |
| 09/30/2009 | CN100545961C Surface mounting coil parts and producing method thereof |
| 09/29/2009 | US7595714 Ignition coil |
| 09/29/2009 | CA2488314C Power source for high current welding |
| 09/24/2009 | WO2009117432A2 Integrated multi-transformer |
| 09/24/2009 | WO2009117136A2 Multi-core inductive device and method of manufacturing |
| 09/24/2009 | WO2009115460A1 Transformer |
| 09/24/2009 | US20090237197 Method For Making Magnetic Components With M-Phase Coupling, And Related Inductor Structures |
| 09/24/2009 | US20090237196 Method for manufacturing transformer, and transformer |
| 09/24/2009 | US20090237195 Center-tapped transformer |
| 09/24/2009 | US20090237194 Apparatus, a system and a method for enabling electromagnetic energy transfer |
| 09/24/2009 | US20090237193 Multi-core inductive device and method of manufacturing |
| 09/24/2009 | CA2718901A1 Inductive transmission system |
| 09/24/2009 | CA2711124A1 A system and method for preventing, protecting oltc from fire and/or transformer from explosion |
| 09/23/2009 | EP2104227A2 Compact balun transformers |
| 09/23/2009 | EP2104118A1 Shared reactor transformer |
| 09/23/2009 | EP2104117A1 A reactor arrangement |
| 09/23/2009 | EP2104116A1 Oil cooling system, particularly for transformers feeding traction electric motors, transformer with said system and method for determining the cooling fluid flow in a cooling system |
| 09/23/2009 | EP2104115A1 A reactor arrangement for alternating electrical current |
| 09/23/2009 | EP2102876A1 Method for producing a transformer coil, and a transformer coil produced using this method |
| 09/23/2009 | EP1488513B1 Filter circuit having an fe-based core |
| 09/23/2009 | CN201315231Y An oil-immersed transformer low-voltage winding |
| 09/23/2009 | CN201315230Y Assembled elastic compaction mechanism |
| 09/23/2009 | CN201315229Y Oil immersed 3D triangle rolled iron core transformer |
| 09/23/2009 | CN201315228Y Epoxy resin cast transformer coil with double-cylinder same-impedance top outlet structure |
| 09/23/2009 | CN201315227Y Insulating end ring of 110 kV transformer |
| 09/23/2009 | CN201315226Y High-voltage and low-voltage winding compound die for flameproof transformer |
| 09/23/2009 | CN201315225Y Inductor |
| 09/23/2009 | CN201315224Y Transformer with lower supplementary loss |
| 09/23/2009 | CN201315223Y Novel high tension coil for encapsulating dry type transformer |
| 09/23/2009 | CN201315222Y Mixed iron core and current mutual inductor |
| 09/23/2009 | CN201315221Y Oil immersed amorphous alloy iron core distribution transformer |
| 09/23/2009 | CN201315220Y TPY-level transient current mutual inductor coil |
| 09/23/2009 | CN201315219Y Oil immersed energy-saving transformer for power and hot water supply |
| 09/23/2009 | CN201315218Y Novel oil storage cabinet |
| 09/23/2009 | CN201315217Y Transformer-hoisting device |
| 09/23/2009 | CN201315216Y Anti-corrosion totally-enclosed transformer |
| 09/23/2009 | CN201315215Y Corona resistant device of 750kV line wave trapper |
| 09/23/2009 | CN101542653A Low voltage coil and transformer |
| 09/23/2009 | CN101542652A Interface cord and system including an interface cord |
| 09/23/2009 | CN101540227A Center tapped transformer |
| 09/23/2009 | CN100543893C Magnetic element |
| 09/23/2009 | CN100543890C Transformer |
| 09/23/2009 | CN100543889C Inductance ballast iron-core |
| 09/23/2009 | CN100543888C Leakage transformer |
| 09/20/2009 | CA2626645A1 Electrically excited load full voltage actuation reduced voltage sustaining driving circuit |
| 09/17/2009 | WO2009113775A2 Multilayer power inductor using sheets charged with soft magnetic metal powder |
| 09/17/2009 | US20090231885 Integrated transformer and power supply using the same |
| 09/17/2009 | US20090231081 Voltage Converter Inductor Having A Nonlinear Inductance Value |
| 09/17/2009 | US20090231080 Coil body for an electric oil and method for producing an electronic element provided with said coil body |
| 09/17/2009 | US20090231079 Coil apparatus |