| Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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| 01/24/2002 | WO2002007083A2 Wireless communication device attachment and detachment device and method |
| 01/24/2002 | US20020007828 Ignition coil for internal combustion engine |
| 01/23/2002 | CN2473740Y Mutual induction mechanism in residual current breaker |
| 01/23/2002 | CN2473728Y Volume regulating transformer special for oil pumping unit |
| 01/22/2002 | US6340851 Modular transformer arrangement for use with multi-level power converter |
| 01/16/2002 | CN2472324Y Openable current mutual inductor |
| 01/16/2002 | CN2472323Y Gas insulated capacitor style voltage mutual inductor |
| 01/16/2002 | CN1078009C Earth leakage circuit-breaker |
| 01/09/2002 | EP0864164B1 Current-compensated radio interference suppression reactor with increased leakage inductance |
| 01/08/2002 | US6337617 Ignition coil device having spool including glass fiber and silica |
| 01/08/2002 | US6337616 Ignition coil for internal-combustion engine |
| 01/08/2002 | US6337556 Coil of charging paddle |
| 01/08/2002 | US6336818 Electrical connector for connection between coil and printed circuit board in automotive anti-lock braking system |
| 01/02/2002 | EP0922288B1 Charging coil core insert for electric toothbrushes |
| 01/02/2002 | CN2469532Y High-power high-frequency transformer with combined magnetic core |
| 01/02/2002 | CN1329339A High-voltage light-channel split core type current transformer |
| 01/01/2002 | US6335673 Current transformer and its manufacturing process |
| 12/27/2001 | WO2001058751A3 Remote operated vehicles |
| 12/25/2001 | US6332458 Ignition coil unit for engine and engine provided with plastic head cover |
| 12/20/2001 | WO2001069271A3 Instrument transformer |
| 12/20/2001 | DE10128279A1 Transformer device e.g. for discharge lamp of illumination system, has core housing comprising dielectric material and has secondary coil wound around outer peripheral surface of core |
| 12/19/2001 | CN2466771Y Improved transformer core structure of electric power voltage stabilizer |
| 12/19/2001 | CN1327708A Electronic ballast and method of manufacturing same |
| 12/19/2001 | CN1076292C Track-guided transport system with power and data transmission |
| 12/19/2001 | CN1076242C Transformer for antiphase resistance welder |
| 12/18/2001 | US6331744 Contactless energy transfer apparatus |
| 12/18/2001 | CA2256861C Waterproof current transformer |
| 12/13/2001 | WO2001095349A2 Lighting assembly |
| 12/13/2001 | US20010050606 Ignition coil |
| 12/11/2001 | US6329896 Low-voltage bobbin for preventing sockets from displacing |
| 12/06/2001 | US20010048356 Method and apparatus for providing selectable output voltages |
| 12/06/2001 | US20010047803 Ignition system for internal combustion engines |
| 12/06/2001 | DE19953583C1 Rotary transformer inductive coupling for asynchronous electrical machine has stationary ferromagnetic primary and ferromagnetic secondary attached to rotor for transfer of slip load |
| 12/05/2001 | CN1325121A AC current dividing current transformer |
| 11/29/2001 | US20010045785 Contactless energy transfer apparatus |
| 11/29/2001 | DE10023592A1 Inductive transformer for transmission of data and/or energy e.g. for automobile steering wheel, uses measurement of magnetic field for determining relative spacing of transformer cores |
| 11/28/2001 | EP0990160B1 Toroidal core current transformer with integrated measuring shunt |
| 11/28/2001 | CN2462524Y Anti-fraudulant use of electricity mutual inductor |
| 11/28/2001 | CN1075662C Flyback transformer |
| 11/28/2001 | CN1075598C Installation structure of sparking plug and cap integral ignition coil device |
| 11/27/2001 | US6324430 Magnetic shield for primary coil of transcutaneous energy transfer device |
| 11/27/2001 | US6323602 Combination equalizing transformer and ballast choke |
| 11/22/2001 | WO2001088931A1 Inductive translator composed of two spools with respective cores |
| 11/20/2001 | US6320352 Electric coupling apparatus for charging device |
| 11/15/2001 | WO2001086670A1 Current transformer for measurement of alternating current |
| 11/14/2001 | EP1154446A1 High-voltage transformer |
| 11/14/2001 | CN2459131Y Circular dc electric welding machine |
| 11/13/2001 | US6317338 Power supply for an electroluminescent display |
| 11/13/2001 | US6317136 Motion vector detecting device |
| 11/13/2001 | US6316910 Supporting device for power supply paddle |
| 11/08/2001 | WO2001031980A8 Electronic ballast and method of manufacturing same |
| 11/08/2001 | US20010038526 Semiconductor device mounting structure and feeding-side charger with heat radiating unit |
| 11/08/2001 | US20010038280 Non-contact signal transmission apparatus |
| 11/07/2001 | EP1152147A2 Integrated ignition coil device |
| 11/07/2001 | EP0826226B1 Magnetic circuit excited by a solenoid and having a gap and its use |
| 11/07/2001 | CN2458711Y Full-closed current transformer |
| 11/07/2001 | CN2458710Y Capacitance voltage transformer for neutral-point non-productive earthing system |
| 11/07/2001 | CN2458709Y Ballast electronic element and device box for metal halid lamp |
| 11/07/2001 | CN2458705Y Coil winding structure for kickback transformer |
| 11/07/2001 | CN1321005A Non-contact signal transmission device |
| 11/06/2001 | US6313727 Current transformer for three-phase systems |
| 11/01/2001 | US20010035734 Charger coupling |
| 10/31/2001 | EP1150314A2 Non-contact signal transmission apparatus |
| 10/31/2001 | DE10026174A1 Kapazitiver Bus Capacitive bus |
| 10/31/2001 | DE10026173A1 Arrangement for transferring electrical energy/signals has voltage-isolated primary circuit at each central unit connection point, external unit secondary circuits |
| 10/31/2001 | CN2457712Y Dry high voltage current mutual inductor |
| 10/30/2001 | US6310465 Battery charging device |
| 10/30/2001 | US6308696 Ignition apparatus for use in internal combustion engine |
| 10/25/2001 | WO2001080444A1 Device for transferring electrical energy or signals |
| 10/25/2001 | WO2001080443A1 Arrangement for contactless transmission of electric signals or energy between several mobile units |
| 10/25/2001 | WO2001080442A2 Array for contactless transmission of electrical signals or energy |
| 10/25/2001 | US20010032636 Ignition coil assembly |
| 10/24/2001 | EP1147528A1 Apparatus and method for transferring energy across a connectorless interface |
| 10/24/2001 | CN2456285Y Electronic high voltage current mutual inductor |
| 10/24/2001 | CN2456284Y 一种电流互感器 A current transformer |
| 10/24/2001 | CN2456283Y 电流互感器 Current Transformer |
| 10/24/2001 | CN2456170Y Three phase optical current mutual inductor |
| 10/24/2001 | CN1073742C Flyback transformer |
| 10/18/2001 | WO2001078458A1 Use of moving element to produce heat |
| 10/18/2001 | WO2001078216A1 Contactless energy transfer apparatus |
| 10/18/2001 | US20010030495 Spark plug for an internal combustion engine and manufacturing method of the same |
| 10/18/2001 | US20010029916 Spark plug for internal combustion engine |
| 10/17/2001 | EP1146227A1 Method of assembly of ignition pencil coils |
| 10/17/2001 | CN2454882Y Sulfur hexafluoride current inductor |
| 10/17/2001 | CN2454881Y 电压互感器 Voltage transformer |
| 10/17/2001 | CN2454877Y Protective cover for voltage-current mutual inductor |
| 10/10/2001 | EP0844943B1 Arrangement for the contactless transmission of an air-bag release signal |
| 10/10/2001 | CN2453530Y Current mutual inductor used for 35KV indoor distrubutor |
| 10/10/2001 | CN2453529Y 电感式镇流器 Inductive ballast |
| 10/10/2001 | CN2453528Y Linear reactance for electric motor soft starting and control |
| 10/04/2001 | EP1139530A2 Spark plug for an internal combustion engine and manufacturing method of the same |
| 10/04/2001 | EP1139529A2 Spark plug for internal combustion engine |
| 10/04/2001 | EP1138939A1 Ignition apparatus for an internal combustion engine |
| 10/04/2001 | EP1138934A2 Dual-coil electromagnetic injection valve |
| 10/04/2001 | DE10014954A1 Electrical overhead conveyor has contactless energy transfer, return line formed by running rail, pick-up with two separate windings for different supply voltages |
| 10/04/2001 | DE10013143A1 Instrument transformer for use with high voltage or high current meters, especially high current meters, in which the outer primary winding is fixed to the transformer housing to prevent short- circuiting and transformer damage |
| 10/03/2001 | CN2452111Y Dry type combined mutual inductor against fraudulent use |
| 10/03/2001 | CN2452110Y Dry type high voltage current mutual inductor |
| 10/03/2001 | CN2452109Y Current-limiting device |
| 10/03/2001 | CN1316173A Magnetron drive step-up transformer and transformer of magnetron drive power supply |