| Patents for H01F 30 - Fixed transformers not covered by group (4,595) |
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| 07/09/2008 | CN201084535Y A three-phase powerful rectifying transformer for hot-press sintering equipment |
| 07/09/2008 | CN201084534Y Structure improved transformer |
| 07/09/2008 | CN201084533Y High power plane transformer |
| 07/08/2008 | US7397334 Coil component and method of manufacturing the same |
| 07/03/2008 | US20080157691 Switching power supply circuit having independent loops |
| 07/03/2008 | US20080157608 Electric Oscillatory Machine |
| 07/02/2008 | CN201081806Y Plane transformer |
| 07/02/2008 | CN201081805Y V-V type compact power transformer for electric traction |
| 07/02/2008 | CN101211191A Directional regulation circuit |
| 07/02/2008 | CN100398244C Power source for high current welding, and buried arc welding method |
| 07/01/2008 | US7394340 Electromagnetic device, high-voltage generating device, and method for making the electromagnetic device |
| 06/26/2008 | WO2008075487A1 Insulation transformer |
| 06/26/2008 | US20080152923 Highly Heat-Resistant Static Device for Electric Power |
| 06/26/2008 | US20080150664 Power source for plasma device |
| 06/26/2008 | DE112006000239T5 Magnetkern für Transformator Magnetic core for transformer |
| 06/26/2008 | CA2742406A1 High voltage transformer |
| 06/26/2008 | CA2742161A1 Method of operating an ozone generating apparatus |
| 06/25/2008 | CN201078797Y Amorphous alloy voltage transformer structure |
| 06/25/2008 | CN100397763C Microminiature power converter |
| 06/19/2008 | US20080143468 Inductor and method of manufacturing the same |
| 06/19/2008 | US20080143465 Insulation system and method for a transformer |
| 06/18/2008 | CN101202156A Transformer with safety creepage distance |
| 06/12/2008 | US20080136577 Apparatus and method for winding an energy transfer element core |
| 06/11/2008 | CN201072699Y Combined traction transformer especially for railway AT power supply |
| 06/11/2008 | CN201072693Y Three-phase transformer especially for wind power generation |
| 06/11/2008 | CN101199032A Support device for a toroidal core inductance mounting for an inductive component and inductive component |
| 06/11/2008 | CN101197538A Microminiature power converter and thin film magnetic induction device thereof |
| 06/05/2008 | US20080130320 40 Phase-Shifting Autotransformer |
| 06/05/2008 | US20080129397 Electromagnetic electric generator |
| 06/04/2008 | CN101192467A Amorphous alloy ground transformer body structure |
| 06/04/2008 | CN100392776C Wire core inductive devices |
| 05/28/2008 | EP1547100B1 Electronic transformer/inductor devices and methods for making same |
| 05/28/2008 | CN201066626Y An AC voltage regulation device preventing from short circuit between loops |
| 05/28/2008 | CN101189691A Prism-type electrical converter for the generation, transmission, distribution and supply of electric current, and production method thereof |
| 05/21/2008 | EP1923204A2 Welder for sleeves for joining plastic pipes |
| 05/21/2008 | CN201063288Y Driving circuit for discharging light tube as well as transformer thereof |
| 05/21/2008 | CN101183605A Convenience-for-transportation disorganized transportation transformer and transport case thereof |
| 05/20/2008 | US7375607 DC transformer with an output inductance integrated on a magnetic core thereof and a DC/DC converter employing the same |
| 05/15/2008 | WO2008056045A1 Method for powering a magnetic coupler and device for powering an electric dipole |
| 05/15/2008 | DE102007048547A1 Radio noise signal suppressor has a ring core with coils and a bridging core of highly magnetic material |
| 05/15/2008 | CA2666828A1 Method for powering a magnetic coupler and device for powering an electric dipole |
| 05/14/2008 | CN201060735Y Positive and negative 500kV DC current sensor |
| 05/14/2008 | CN201060727Y Splitting type commutator transformer |
| 05/14/2008 | CN101178974A Electric voltage adaptability electric power transformer special for electrical heating thick oil well |
| 05/14/2008 | CN101178973A Electric voltage adaptability electric power transformer special for electrical heating thick oil well |
| 05/14/2008 | CN101178972A High-voltage transformer having injection molding insulation member |
| 05/14/2008 | CN101178971A High voltage transformer |
| 05/07/2008 | CN201057592Y Symmetrical three-phase transformer |
| 04/30/2008 | EP1916679A2 High voltage transformer |
| 04/30/2008 | CN101170011A Single-phase or Vx connection traction transformer coiling structure for electric railway AT power supply mode |
| 04/30/2008 | CN101170010A Thin transformer and transformer component |
| 04/30/2008 | CN101170009A Directly buried non crystal alloy high-combustion point oil-dipped transformer |
| 04/30/2008 | CN101170008A Directly buried non crystal alloy oil immersing transformer |
| 04/30/2008 | CN101170007A Method for adjusting mutual induction effect |
| 04/30/2008 | CN101170006A Transformer and multi-lamp tube drive circuit using this transformer |
| 04/29/2008 | US7365294 Microwave oven |
| 04/24/2008 | US20080092366 Current Transformer Core and Method for Producing a Current Transformer Core |
| 04/23/2008 | EP1523748B1 Inductive component and use of said component |
| 04/23/2008 | CN201051445Y Insulated three-phase power transformer |
| 04/16/2008 | EP1910124A1 Multilevel converter and method of converting a supply voltage |
| 04/16/2008 | CN201048082Y Three-phase five-limb iron core transformer for mining and mobile substation with the transformer |
| 04/16/2008 | CN201048081Y Ellipse cross section coil transformer for mining and mobile substation with the transformer |
| 04/16/2008 | CN201048080Y Vertical transformer device |
| 04/15/2008 | US7358844 Current transformer core and method for producing a current transformer core |
| 04/09/2008 | CN201045714Y Mounting structure for elbow type lightning arrester |
| 04/08/2008 | US7355871 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| 04/02/2008 | EP1540674B1 Transformer and transformer unit having the same |
| 04/01/2008 | US7351931 Switching power supply apparatus and electronic device using the same |
| 03/26/2008 | CN201041769Y Triangle overlapping solid transformer |
| 03/26/2008 | CN201041768Y Separated power supply transformer |
| 03/25/2008 | US7346979 Method for winding an energy transfer element core |
| 03/19/2008 | EP1901318A2 Screwless core assembly device |
| 03/19/2008 | CN201038771Y Transformer separation type low-voltage feeding cabinet main circuit |
| 03/19/2008 | CN201038625Y Transformer separation type low-voltage feeding cabinet |
| 03/19/2008 | CN101147214A A transformer having a stacked core with a cruciform leg and a method of making the same |
| 03/19/2008 | CN101145440A V-shaped wiring transformer |
| 03/19/2008 | CN101145439A Generator transformer |
| 03/12/2008 | CN201036146Y Single-phase traction transformer of secondary side center tap |
| 03/12/2008 | CN201036145Y Low leakage high-voltage transformer |
| 03/12/2008 | CN201036132Y Novel A. C. welder |
| 03/12/2008 | CN201036126Y Transformer |
| 03/12/2008 | CN201036117Y Amorphous alloy drying transformer |
| 03/12/2008 | CN101142641A Multilayer coil component |
| 03/12/2008 | CN101140824A Multiple pulse wave high-pressure frequency conversion rectifier transformer of accurate controlling semi-abruption electric impedance |
| 03/06/2008 | WO2008026297A1 Current balancer and low-voltage power distribution system |
| 03/05/2008 | EP1895673A2 Device for the inductive coupling of a data-transmission unit to a phase of an electrical power line and corresponding production method |
| 03/05/2008 | EP1895552A1 Highly heat-resistant static device for electric power |
| 03/05/2008 | CN201032609Y Highly effective independent type planar transformer |
| 03/05/2008 | CN101136283A Reverse-phase convertor |
| 02/27/2008 | EP1891648A1 Support device for a toroidal core inductance mounting for an inductive component and inductive component |
| 02/21/2008 | WO2008003006A3 Configurable multiphase coupled magnetic structure |
| 02/21/2008 | WO2007147844A3 Power supply for electrostatic precipitator |
| 02/20/2008 | CN201025594Y Three-phase loop energy-saving DC electric welder |
| 02/14/2008 | WO2006087403A3 Device for the inductive coupling of a data-transmission unit to a phase of an electrical power line and corresponding production method |
| 02/13/2008 | EP1887839A2 Current sensing transformer, method of manufacturing current sensing transformer, lamp power supply having the current sensing transformer, and liquid crystal display having the lamp power supply |
| 02/13/2008 | EP1887588A1 Prism-type electrical converter for the generation, transmission, distribution and supply of electric current, and production method thereof |
| 02/12/2008 | US7330363 Converter circuit with two converter elements |
| 02/12/2008 | US7330095 Cooled multiphase choke assembly |
| 02/07/2008 | WO2008016089A1 Inductor element, inductor element manufacturing method, and semiconductor device with inductor element mounted thereon |
| 02/06/2008 | EP1884966A1 Insulator transformer |