Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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05/02/1995 | US5412304 Cooled primary of automobile battery charging transformer |
05/02/1995 | US5412253 IC memory card with non-contact power and data connection |
05/02/1995 | US5411006 Engine ignition and control system |
04/27/1995 | WO1995011545A1 Inductive power pick-up coils |
04/27/1995 | WO1995011544A1 A flux concentrator for an inductive power transfer system |
04/26/1995 | EP0650240A2 Fixed core inductive charger |
04/26/1995 | EP0650236A1 Electrical high voltage switchgear with toroidal core current transformer |
04/26/1995 | EP0650172A1 Housing for toroidal core and wound toroidal core with such housing |
04/25/1995 | US5408870 Method for detecting the load on an internal combustion engine |
04/18/1995 | US5408209 Cooled secondary coils of electric automobile charging transformer |
04/18/1995 | US5406921 In a combustion cylinder of a spark ignition internal combustion engine |
04/13/1995 | DE4428497A1 Ignition coil device for internal combustion engines |
04/11/1995 | US5406242 Ignition coil |
04/11/1995 | US5405271 Apparatus and method for improving assembly of leadless ballasts into fluorescent luminaires |
04/11/1995 | US5404860 Ignition system for internal combustion engine |
04/06/1995 | DE4333886A1 Ignition transformer (starting transformer) for a gas-discharge lamp |
03/29/1995 | EP0645898A2 System for contactless transmission of data or power |
03/29/1995 | EP0645782A1 Multifunctional current feedthrough |
03/23/1995 | WO1995008178A1 Process and design for producing inside coils |
03/23/1995 | WO1995007792A1 Tool head with external current supply |
03/21/1995 | US5400006 Current transformer with plural part core |
03/21/1995 | US5398664 Ignition unit for internal combustion engine |
03/16/1995 | DE4331265A1 Current transformer for cables |
03/15/1995 | EP0643436A1 Rotatable contactless antenna coupler and antenna |
03/14/1995 | US5398014 Core having earth contacting |
03/14/1995 | US5396696 Flyback transformer device and apparatus for preparing same |
03/09/1995 | WO1995006939A1 Multi-channel rotating transformer |
03/09/1995 | DE4330072A1 Ignition coil set for multi-cylinder internal combustion engines |
03/08/1995 | EP0642203A1 Induction charging apparatus |
03/08/1995 | EP0642144A1 Device for the transmission of electric power signals to a rotating system |
03/08/1995 | CN1099912A Electrical energy-transforming equipment |
03/02/1995 | WO1995006319A1 Ignition coil assembly |
03/01/1995 | CN1099530A Power converter configuration, control, and construction |
02/28/1995 | US5394302 Ignition coil for internal combustion engines |
02/21/1995 | US5392020 Flexible transformer apparatus particularly adapted for high voltage operation |
02/21/1995 | US5391835 Explosion resistant, oil insulated, current transformer |
02/21/1995 | US5390648 Electrically wiring parts mounted on an engine |
02/15/1995 | EP0638971A1 Ignition coil with reduced transverse size |
02/15/1995 | EP0638912A2 Cooled primary of automobile battery charging transformer |
02/15/1995 | EP0638911A1 A connection support for ignition coils |
02/09/1995 | WO1995004363A1 Device for transmitting electric power signals to a rotary unit |
02/08/1995 | CN1098538A Rotative transformer of equipment for replaying magnetic recording |
02/01/1995 | EP0380582B1 Choke coil |
01/31/1995 | US5385476 Magnetic circuits for communicating data |
01/25/1995 | EP0635922A1 Fault current acquiring device having high sensitivity |
01/25/1995 | EP0635856A1 Ignition coil |
01/25/1995 | EP0635823A2 Rotary transformer |
01/19/1995 | DE4424161A1 Ignition coil arrangement |
01/19/1995 | DE4424129A1 Ignition coil arrangement for internal combustion engines |
01/19/1995 | DE4420709A1 Internal combustion engine ignition device |
01/19/1995 | DE4413014A1 Ignition coil for an internal combustion engine |
01/19/1995 | DE4411189A1 Ignition coil for an internal combustion engine |
01/19/1995 | DE4411134A1 Ignition coil for an internal combustion engine |
01/19/1995 | DE4406068A1 Ignition coil |
01/17/1995 | US5382896 For an electronic trip device |
01/12/1995 | DE4400841A1 Ignition coil device for an internal combustion engine |
01/11/1995 | EP0633651A1 Power converter configuration, control and construction |
01/11/1995 | CN1027409C Focusing unit |
01/10/1995 | US5381123 Transformer, especially a measurement transformer, for detecting faults on electrical cables |
01/05/1995 | WO1995000961A1 Ignition coil assembly |
01/05/1995 | DE4320714A1 Diode split high-voltage transformer |
01/03/1995 | US5379021 Inductive coupler for transferring electrical power |
01/03/1995 | US5378966 Flux captivated emission controlled flyback transformer |
01/03/1995 | US5377653 Internal-combustion-engine ignition device |
01/03/1995 | US5377652 Ignition transformer |
12/08/1994 | WO1994028560A1 Power coupling |
12/08/1994 | DE4318130A1 Ignition coil for internal combustion engines |
12/08/1994 | DE4318124A1 Ignition coil for internal combustion engines |
12/07/1994 | EP0627750A1 Combined current and voltage transformer for high voltages |
12/07/1994 | EP0627630A2 Differential current sensing method and apparatus |
12/01/1994 | DE4318367A1 Metal-encapsulated high-voltage switching installation |
11/30/1994 | EP0442986B1 Ignition coil |
11/24/1994 | WO1994027306A1 Metal-enclosed high-voltage switchgear with a current transformer |
11/24/1994 | WO1994027157A1 Current measurement transducer based on magnetic flux density measurement |
11/24/1994 | CA2162163A1 A metal-enclosed high-voltage switching system with a current transformer |
11/23/1994 | EP0572427B1 Current transformer |
11/23/1994 | CN1026738C Non-linear inductor with magnetic field reduction |
11/22/1994 | US5367432 Instrument current transformer for power cables |
11/17/1994 | EP0624887A1 Ignition device for internal combustion engines and ignition device mounting type distributor |
11/16/1994 | CN1095162A Differential current sensing method and apparatus |
11/15/1994 | US5365394 Electronic relay to protect motors and thyristors against symmetric overload, phase unbalance and short-circuit |
11/10/1994 | WO1994025304A1 Power collector for inductive power transfer |
11/10/1994 | DE4314444A1 Zündspule für Brennkraftmaschinen Ignition coil for internal combustion engines |
11/09/1994 | CN1094792A Secondary winding bobbin for an ignition coil for an internal combustion engine |
11/08/1994 | US5363079 Protective snap-together enclosure for current transformers |
11/08/1994 | US5363035 Phase controlled transformer |
11/03/1994 | DE4314823A1 Gas-insulated, high-voltage (high-tension) switching installation having a current transformer |
11/02/1994 | EP0622814A1 Transducer |
11/02/1994 | CN1094481A 点火线圈 Ignition coils |
11/01/1994 | US5361057 Ignition coil for internal combustion engine |
11/01/1994 | US5359982 Ignitor for an internal combustion engine |
10/26/1994 | EP0620947A1 Ignition coil assembly and method of manufacture thereof. |
10/25/1994 | US5359312 Rotary transformer assembly for rotary head drum device |
10/20/1994 | DE4331621C1 Method and device for producing inner windings in an inner groove of an annular body, in particular a rotary transformer |
10/18/1994 | US5357233 Ignition apparatus for internal combustion engine |
10/18/1994 | US5357210 Transconductance amplifier circuit |
10/13/1994 | WO1994023305A1 Electric current measuring device with a magnetic flux sensor, in particular for electric vehicles |
10/12/1994 | EP0619586A1 Electrical energy-transforming equipment |
10/12/1994 | CN1093465A 电流检测器 Current detector |
10/08/1994 | CA2120451A1 Differential current sensing method and apparatus |