| Patents for H01F 30 - Fixed transformers not covered by group (4,595) |
|---|
| 11/10/2004 | EP1475812A2 Electric component and method of producing the same |
| 11/10/2004 | EP1475811A2 Electric component and method of producing the same |
| 11/10/2004 | EP1475810A1 High voltage transformer and microwave oven provided with the same |
| 11/10/2004 | EP1475809A2 Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same |
| 11/10/2004 | EP1344230B1 Medium frequency transformer |
| 11/10/2004 | CN2655401Y Transformer structure |
| 11/10/2004 | CN1545110A Structure-improved coplanar transformer |
| 11/09/2004 | US6816053 Circuit to mitigate transformer shorted turn |
| 11/03/2004 | CN2653658Y Resin insulation dry power transformer of track circular iron core and coil |
| 11/03/2004 | CN2653657Y Output self regulating power transformer and its stabilivolt regulator |
| 11/03/2004 | CN2653655Y Rectangular iron core/coil DVD dry transformer |
| 11/02/2004 | US6813163 Converter device |
| 11/02/2004 | US6812818 High voltage transformer |
| 10/28/2004 | WO2004093104A1 Booster transformer for driving magnetron and transformer unit having the booster transformer |
| 10/28/2004 | US20040212476 Transformer |
| 10/27/2004 | CN2651911Y Transformer structure |
| 10/26/2004 | US6809620 Transformer core |
| 10/26/2004 | US6808669 Method of manufacturing a high voltage transformer for microwave oven |
| 10/21/2004 | US20040208032 Microminiature power converter |
| 10/20/2004 | CN1538585A Allocation transformer equipment |
| 10/19/2004 | US6806803 Transformer winding |
| 10/14/2004 | US20040201950 Voltage transformer with hinged housing |
| 10/13/2004 | EP1467446A1 Voltage converter with folding housing |
| 10/13/2004 | CN2648571Y High voltage trigger transformer used for camera or cell phone flash lamp circuit |
| 10/13/2004 | CN2648570Y Transformer structure |
| 10/13/2004 | CN2648569Y Transformer structure |
| 10/13/2004 | CN2648566Y Cascade-connected high voltage pulse transformer |
| 10/07/2004 | US20040196129 Circuit to mitigate transformer shorted turn |
| 10/06/2004 | CN2646842Y Industrial frequency testing transformer without partial discharge contamination |
| 10/06/2004 | CN2646841Y 高压变压器装置 High-voltage transformer unit |
| 10/06/2004 | CN2646550Y Sharpness desk lamp capable of improving luminous efficiency |
| 10/06/2004 | CN1534697A Transformer and multi lamp tube voltage power supply circuit using transformer |
| 09/23/2004 | US20040184292 Systems and methods for driving large capacity AC motors |
| 09/23/2004 | US20040183743 Enhanced antenna using flexible circuitry |
| 09/22/2004 | EP1460712A1 Enhanced coil antenna performance using flexible printed circuit |
| 09/22/2004 | CN1530973A Electronic element and producing method thereof |
| 09/21/2004 | US6792666 Three-phase transformer |
| 09/16/2004 | US20040178873 Wound-rotor transformer and power source device using said wound-rotor transformer |
| 09/16/2004 | US20040178872 Electrical steel sheet for low-noise transformer and low-noise transformer |
| 09/15/2004 | EP0956571B1 Transformer with voltage regulating means |
| 09/15/2004 | CN1529331A Secondary side central-tapped scott wiring transformer |
| 09/15/2004 | CN1167090C High voltage tranformer used for microwave oven and its manufacturing method |
| 09/10/2004 | WO2004077459A1 Insulating element, toroidal core, toroidal core choke, and method for producing said toroidal core choke |
| 09/09/2004 | US20040174240 Electrical device and method of producing the same |
| 09/09/2004 | US20040174145 Transformer/rectifier arrangement |
| 09/09/2004 | DE10308010A1 Isolierteil, Ringkern, Ringkerndrossel und Verfahren zur Herstellung der Ringkerndrossel Insulating, toroidal, toroidal-core inductor and method of manufacturing the toroidal core choke |
| 09/07/2004 | US6788184 High frequency transformer with integrated rectifiers |
| 09/02/2004 | DE10004814B4 Telefon-Stromversorgungssystem zum Einbau in einen Wechselstromadapter als Stromversorgung für Telefone Phone power supply system for installation in an AC adapter as a power supply for phones |
| 09/01/2004 | CN1525631A Microminiature power converter |
| 09/01/2004 | CN1165058C Harmonic wave shielding balanced transformer |
| 08/26/2004 | WO2004072994A2 Polymer sheet core and coil insulation for transformer |
| 08/26/2004 | US20040164834 Transformer |
| 08/25/2004 | CN2636389Y Single machine forty-two phase rectifier transformer |
| 08/25/2004 | CN1163923C Three-phase stereo transformer |
| 08/25/2004 | CN1163921C Transformer with high coupling efficiency |
| 08/25/2004 | CN1163697C Microwave oven |
| 08/12/2004 | US20040155748 Transformer for producing high electrical currents |
| 08/11/2004 | CN1520598A 3-limb amorphous metal cores for three-phase transformers |
| 08/10/2004 | US6774757 Coil |
| 08/10/2004 | US6774756 Functional material-composite structural magnetic core |
| 08/05/2004 | US20040150498 Polymer sheet core and coil insulation for transformers |
| 08/05/2004 | DE10340391A1 Induktor mit geringem Energieverlust Inductor with low energy loss |
| 08/04/2004 | CN1518016A High-tension transformer |
| 08/04/2004 | CN1518015A Wound rotor transformer and supply unit using wound rotor transformer |
| 08/04/2004 | CN1518014A High-tension transformer |
| 08/04/2004 | CN1518012A Noise filter |
| 08/04/2004 | CN1160747C Method for forming resin moulded parts of transformer coil |
| 07/29/2004 | US20040145444 High voltage transformer |
| 07/29/2004 | US20040145437 High voltage transformer |
| 07/29/2004 | DE102004002176A1 Mikrominiatur-Stromrichter Microminiature power converter |
| 07/28/2004 | EP1441374A1 High voltage transformer |
| 07/28/2004 | EP1441373A1 High voltage transformer |
| 07/28/2004 | CN1516206A Resin-poured insulation dry transformer and its production method |
| 07/28/2004 | CN1515832A Transformer assembly for microwave oven and its mfg. method and microwave oven with said assembly |
| 07/22/2004 | WO2004061877A1 Circuit using choke coil and choke coil |
| 07/22/2004 | US20040140878 Inductor having small energy loss |
| 07/21/2004 | EP1439554A1 Inductive component |
| 07/21/2004 | CN1158678C Line interface transformer |
| 07/15/2004 | WO2004025671A9 Electronic transformer/inductor devices and methods for making same |
| 07/15/2004 | US20040135662 Electronic transformer/inductor devices and methods for making same |
| 07/15/2004 | US20040135652 Noise filter |
| 07/15/2004 | DE10260246A1 Spulenanordnung mit veränderbarer Induktivität Coil arrangement with variable inductance |
| 07/14/2004 | EP1437748A2 Inverter transformer to light multiple lamps |
| 07/14/2004 | CN2626023Y Transformer for cold cathode tube current converter |
| 07/14/2004 | CN1157742C High frequency E-type and I-type film transformer and its preparing method |
| 07/13/2004 | US6762666 Toroidal core for a toroid |
| 07/08/2004 | US20040130426 Inverter transformer to light multiple lamps |
| 07/08/2004 | US20040129446 Coaxial cable and transmission transformer using same |
| 07/01/2004 | US20040125628 High-frequency power inductance element |
| 06/30/2004 | CN2622823Y Loop three-phase cable winding transformer |
| 06/30/2004 | CN1155974C Transformer for generating high voltage |
| 06/30/2004 | CN1155973C Power distribution network incorporating a voltage support transformer and process of use |
| 06/24/2004 | US20040119577 Coil arrangement with variable inductance |
| 06/24/2004 | US20040119571 Field adjustable phase shifting transformer |
| 06/24/2004 | CA2418315A1 Field-adjustable phase shifting transformer |
| 06/23/2004 | EP1431986A1 Coil assembly with variable inductance |
| 06/22/2004 | US6753749 Toroidal transformer enclosure |
| 06/17/2004 | US20040113740 Transformer and transformer unit having the same |
| 06/17/2004 | US20040113739 Low profile transformer |
| 06/17/2004 | US20040113736 Electrical transformer apparatus |