Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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01/05/2005 | CN1560884A Low-consumption inductance ballast |
01/04/2005 | US6837644 Dual shaft and rotating machine coupling |
12/30/2004 | DE19506372B4 Bi-Direktionales Bewegungsschätzverfahren und ein dafür vorgesehenes Gerät Bi-Directional motion estimation method and a designated unit |
12/30/2004 | DE10352159A1 Steckverbinderkupplung Connector Female |
12/29/2004 | WO2004023509A9 Metalized polyester film with heat-seal layer on opposite side for flyback transformer application |
12/29/2004 | CN2667632Y Inverted dry type high voltage current mutual inductor |
12/29/2004 | CN2667631Y Dry type high voltage current mutual inductor |
12/29/2004 | CN2667630Y Self-control mutual inductor |
12/29/2004 | CN1182553C Transformer |
12/28/2004 | US6836534 High voltage transformer |
12/28/2004 | US6836203 Ignition coil for internal combustion engine |
12/28/2004 | US6834644 Circular ignition coil assembly |
12/23/2004 | WO2004112274A1 Signal filling/extraction device |
12/23/2004 | WO2004036772A3 Arrangement of a data coupler for power line communications |
12/22/2004 | EP1488433A1 Power transformer for wind energy plants |
12/22/2004 | CN1181510C Ignition coil |
12/22/2004 | CN1181509C Electromagnetic device and high-voltage generating device and method of producing electromagnetic device |
12/16/2004 | WO2004109723A1 Inverter trasformer |
12/16/2004 | WO2004109722A1 Inverter trasformer |
12/16/2004 | WO2004109668A1 Optical scanning device |
12/16/2004 | WO2004073177A3 Inductively powered apparatus |
12/16/2004 | WO2003096512A8 Contact-less power transfer |
12/16/2004 | US20040253874 Connector or other circuit element having an indirectly coupled integrated circuit |
12/16/2004 | US20040252002 Electrical structural part and method of its manufacture |
12/15/2004 | EP1487082A1 Inductive charging system for a portable electronic apparatus |
12/15/2004 | EP1486994A1 Composite core nonlinear reactor and induction power receiving circuit |
12/15/2004 | CN2664136Y Polyphase photo-electric current transformer |
12/15/2004 | CN2664130Y Novel voltage equalizing ball |
12/15/2004 | CN1554952A Hollow coil and its preparing method |
12/14/2004 | US6830467 Electrical transmission line diametrical retainer |
12/09/2004 | WO2004107372A2 Method of producing an individual ignition coil and coil thus obtained |
12/09/2004 | US20040246749 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
12/08/2004 | CN1179376C High-voltage transformer |
12/02/2004 | WO2004105061A1 Energy delivery system |
12/02/2004 | US20040239465 LAN magnetic interface circuit |
12/02/2004 | DE10319248A1 Schleifring mit verlustbehafteter Leiterbahn Slip ring with lossy interconnect |
12/02/2004 | CA2526544A1 Methods and apparatus for control of inductively coupled power transfer systems |
12/01/2004 | EP1481407A1 Translator |
12/01/2004 | CN2660663Y Reactor for inverse a.c. welding machine |
12/01/2004 | CN1551704A Nverter circuit for discharge lamps for multi-lamp lighting and surface light source system |
12/01/2004 | CN1551256A Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same |
12/01/2004 | CN1178235C Kickback transformer |
11/25/2004 | WO2004102748A1 Plug connector coupling |
11/25/2004 | US20040232845 Inductive coil assembly |
11/25/2004 | US20040231652 Ignition coil for an internal combustion engine |
11/25/2004 | DE20310395U1 High voltage equipment seal for e.g. lead-through, current-, voltage or combination transformer, includes washer completing seal between bore and bolt |
11/25/2004 | DE10317739A1 Elektrisches Bauteil und Verfahren zu dessen Herstellung Electrical component and method for its production |
11/24/2004 | EP1480244A2 A device for containing current-sensor means |
11/24/2004 | EP1478846A1 Electronic module for internal combustion engine ignition coil |
11/23/2004 | US6822547 Current transformer |
11/18/2004 | DE10319532A1 Transmission for power between electric cooker carcass and door has respective windings with cores to define electromagnetic connection |
11/18/2004 | DE10217494B4 Verfahren zur Herstellung einer Zündvorrichtung für eine Brennkraftmaschine sowie Zündvorrichtung A process for producing an ignition device for an internal combustion engine ignition device, and |
11/17/2004 | CN1547796A Biaxial and electric rotating machine coupling |
11/17/2004 | CN1547224A A DC current transformer |
11/16/2004 | US6817729 Beacon system with enhanced insulation and sealing |
11/16/2004 | US6817350 Ignition device for an internal combustion engine |
11/11/2004 | WO2004098018A1 Slipring comprising a slideway that is subject to loss |
11/11/2004 | WO2004097866A1 Apparatus for supplying energy to a load and a related system |
11/11/2004 | US20040222873 Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same |
11/11/2004 | CA2522173A1 Apparatus for supplying energy to a load and a related system |
11/10/2004 | EP1475809A2 Transformer assembly, and power conversion apparatus and solar power generation apparatus using the same |
11/10/2004 | CN2655403Y 110KV indoor, outdoor type dry-current transformer |
11/10/2004 | CN2655402Y Ultra-light non-local discharge experiment transformer |
11/10/2004 | CN1175617C Network coupling device |
11/10/2004 | CN1175439C Current measuring device and method using current mutual inductor with high transforming ratio |
11/09/2004 | US6816054 Silicon steel core for transformers or choke coils |
11/09/2004 | US6816053 Circuit to mitigate transformer shorted turn |
11/04/2004 | US20040219831 Data transmission system for a downhole component |
11/04/2004 | US20040217841 Device for energy storage and energy transformation |
11/04/2004 | US20040217826 Network coupler |
11/04/2004 | US20040216723 Ignition coil having a connecting device for contacting a spark plug |
11/03/2004 | EP1472706A1 Current transformer having an amorphous fe-based core |
11/03/2004 | CN1174534C Bushing-type current transformer for air-insulated metal encapsulated middle voltage switching station |
11/03/2004 | CN1174444C Focus regulator for flyback transformer |
11/02/2004 | US6813316 Array for the transmission of electrical energy or signals |
11/02/2004 | US6811327 Connection system for undersea acoustic antenna |
11/02/2004 | US6810868 Ignition coil for internal combustion engine |
10/28/2004 | WO2004093104A1 Booster transformer for driving magnetron and transformer unit having the booster transformer |
10/28/2004 | US20040213021 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
10/28/2004 | DE10312284A1 Übertragerkopf und System zur berührungslosen Energieübertragung Pick-and system for contactless energy transfer |
10/27/2004 | EP0577611B2 Inductive power distribution system |
10/27/2004 | CN1173186C High frequency current tester |
10/26/2004 | US6809621 Internal combustion engine ignition coil, and method of producing the same |
10/21/2004 | WO2004091052A2 Method and apparatus for substantially reducing electrical displacement current flow between input and output circuits coupled to input and output windings of an energy transfer element |
10/21/2004 | WO2004090919A1 Rotating transformer |
10/21/2004 | DE10314063A1 Aufsteckbare Stabzündspule Push-rod ignition coil |
10/21/2004 | DE10302064A1 South-pole face shaping for field coil core e.g. of automobile generator, has face filled out sufficiently for guaranteed electron yield even in winding phase/conductor |
10/20/2004 | EP1469488A1 Electric component and its production method |
10/20/2004 | EP1469255A1 Electric gas lighter which can be produced with any number of output terminals, ans relative production method |
10/20/2004 | CN2650303Y Improvement of transformer for microwave oven |
10/20/2004 | CN1538785A Fire-proof plate |
10/19/2004 | US6805086 Ignition coil apparatus for engine |
10/17/2004 | CA2464600A1 Electrical structural part |
10/14/2004 | WO2004088682A1 A device useful for signal transfer from static surface to rotating surface and viceversa |
10/13/2004 | EP1467213A2 Self-powered axial current sensor |
10/13/2004 | EP1266231B1 Instrument transformer |
10/13/2004 | EP1016104B1 Transformer system provided with a decoupling system |
10/13/2004 | CN2648700Y Low frequency high and sub harmonic wave suppressor |
10/12/2004 | US6803744 Alignment independent and self aligning inductive power transfer system |
10/07/2004 | WO2004086030A1 Gas sensor module with contactless interface |