| Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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| 10/22/1997 | CN1162824A Variable resistor for high voltage |
| 10/15/1997 | EP0800717A1 Interconnection system for transmitting power between electrical systems |
| 10/15/1997 | CN2264957Y Current transformer for switch cubicle |
| 10/15/1997 | CN1162067A Ignition device capable of preventing error action of its micro-processor |
| 10/14/1997 | US5677661 For use in a tape recorder |
| 10/08/1997 | EP0799517A1 Device for the contactless inductive transmission of electric energy |
| 10/08/1997 | CN2264405Y 户外式低压电流互感器 Outdoor low voltage current transformer |
| 10/08/1997 | CN1161548A Separated magnetic type transformer used for hand ac arc welding machine |
| 10/07/1997 | US5675306 Resonant electromagnetic field amplifier utilizing a magnetic LRC resonant circuit |
| 10/01/1997 | EP0719199B1 Tool head with external current supply |
| 10/01/1997 | CN2263823Y Pathfinder for kickback transformer high-tension cable connecting high-tension cable bobbin |
| 09/30/1997 | CA2173084A1 Induction device for high radio frequency signal distributor |
| 09/24/1997 | EP0796993A2 Ignition apparatus for use in internal combustion engine |
| 09/24/1997 | CN2263389Y Anti-resonance voltage mutual inductor |
| 09/24/1997 | CN1160322A High-voltage transformer for television receiver |
| 09/24/1997 | CN1160126A Ignition coil device |
| 09/23/1997 | US5670925 Bobbin, bobbin and core assembly, and inductor coil assembly for electronic ballast |
| 09/17/1997 | CN2262742Y Current transformer |
| 09/17/1997 | CN2262741Y Three-phase transformer for silicon rectifier welder |
| 09/17/1997 | CN2262740Y Rain-resisting narrow magnetic circuit neon lamp transformer |
| 09/17/1997 | CN1159649A Transformer for integrated suspension spot-welding machine |
| 09/09/1997 | US5664550 Ignition system of internal combustion engine |
| 09/03/1997 | EP0792511A1 Ignition coil arrangement for a multi-cylinder internal combustion engine |
| 09/03/1997 | EP0666804B1 Arrangement for the inductive transfer of energy to movable consumers |
| 09/03/1997 | CN2261665Y Plastic sealing voltage inducer |
| 09/02/1997 | US5663875 Voltage converter for the discharge lamp of a motor vehicle headlight, a power supply circuit, and a headlight including the circuit |
| 09/02/1997 | US5662091 Ignition apparatus for internal combustion engine |
| 08/27/1997 | EP0791732A2 Ignition coil device |
| 08/27/1997 | EP0791217A1 Arcuate scan read/write assembly with encoded signal transmission through a rotary transformer |
| 08/27/1997 | CN1158181A Ignition coil arrangement for a multi-cylinder internal combustion engine |
| 08/27/1997 | CN1158020A Transformer for antiphase resistance welder |
| 08/26/1997 | US5661391 Apparatus for charging a propulsion battery of an electrically powered vehicle |
| 08/26/1997 | US5660749 Transformer and A.C. arc welder |
| 08/21/1997 | WO1997030287A1 Simplified switch driver for inductive ignition |
| 08/21/1997 | CA2218295A1 Simplified switch driver for inductive ignition |
| 08/14/1997 | WO1997029280A1 Ignition device for a multicylinder internal combustion engine |
| 08/14/1997 | WO1997023031A3 Device for high-voltage transformation by cascading |
| 08/13/1997 | CN2259678Y Ring-shape small size current mutual inductor |
| 08/13/1997 | CN2259677Y Measuring AC/DC mutual inductor |
| 08/12/1997 | US5656983 Inductive coupler for transferring electrical power |
| 08/07/1997 | WO1997028545A1 Passive non-linear inductor |
| 08/07/1997 | DE19604105A1 Zündvorrichtung für eine Mehrzylinder-Brennkraftmaschine Ignition device for a multi-cylinder internal combustion engine |
| 08/06/1997 | EP0787348A1 Epoxy resin casting composition |
| 08/05/1997 | US5654621 Method and arrangement for automatic contactless charging |
| 07/30/1997 | EP0700574B1 Power coupling |
| 07/24/1997 | DE19609656C1 Clamping bracket for outputs from horizontal line deflection transformer |
| 07/24/1997 | DE19609640C1 Horizontal deflection transformer for display device circuit |
| 07/23/1997 | EP0785605A1 Engine igniting coil device |
| 07/23/1997 | CN2258311Y Current transformer with voltage extractor |
| 07/23/1997 | CN1155208A Displaying monitor |
| 07/17/1997 | DE19653442A1 Ignition coil for IC engine |
| 07/16/1997 | CN2257957Y Independent sulfur hexafluoride mutual inductor |
| 07/16/1997 | CN1154440A Slant winding electromagnetic coil and ignition coil for internal combustion engine using same |
| 07/10/1997 | WO1997024739A1 Secondary winding structure of flexible transformer |
| 07/10/1997 | WO1997024737A1 Flexible coil winding structure of flyback transformer and manufacturing process thereof |
| 07/02/1997 | CN1153392A Flyback transformer |
| 07/01/1997 | US5644198 Flyback transformer driving apparatus for video display appliances |
| 06/26/1997 | WO1997023031A2 Device for high-voltage transformation by cascading |
| 06/26/1997 | WO1997022981A1 Ignitor for internal combustion engines |
| 06/24/1997 | US5642166 In a low bit-rate moving image coded system |
| 06/19/1997 | WO1997021920A1 Low inductance high energy inductive ignition system |
| 06/18/1997 | EP0779634A1 Current transformer and method for making same |
| 06/17/1997 | US5640135 Sectional ferrite core construction for mechanical stress relief in inductive charging systems |
| 06/12/1997 | WO1997020710A1 Non-contacting device for the transmission of signals between vehicle parts which moves linearly with respect to each other |
| 06/12/1997 | WO1997012783A3 Inductive electric energy and data transmission process |
| 06/12/1997 | DE19545220A1 Anordnung zum kontaktlosen Übertragen von Signalen zwischen gegeneinander linear bewegbaren Fahrzeugteilen Arrangement for contactless transmission of signals between mutually linearly movable vehicle parts |
| 06/11/1997 | CN2256156Y Retracing transformer with stagger arranged diodes |
| 06/11/1997 | CN2256155Y Plastic sealed current mutual inductor |
| 06/11/1997 | CN2256154Y High speed electronic mutual inductor with power supply |
| 06/11/1997 | CN2256153Y Converted hexafluoro-sulfide high voltage current mutual inductor |
| 06/11/1997 | CN2256152Y Short magnetic circuit energy saving ballast |
| 06/11/1997 | CN2256151Y Iron core structure of arc welding transformer |
| 06/11/1997 | CN2256146Y Fixing structure of arc welding transformer coils |
| 06/11/1997 | CN1151599A Rotary transformer with flexible printed circuit boards |
| 06/10/1997 | US5637973 Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus and a control method for controlling same |
| 06/04/1997 | EP0777240A1 High voltage line transfomer for a TV receiver |
| 06/04/1997 | EP0522014B1 Cable coupling transformer |
| 06/04/1997 | CN1151083A Flexible copperless transformer device |
| 06/03/1997 | US5636113 Saturable reactor |
| 05/29/1997 | WO1997018974A1 Means for guided, unidirectional or bi-directional transmission of electrical signals to a vehicle steering wheel |
| 05/29/1997 | CA2238266A1 Means for guided, unidirectional or bi-directional transmission of electrical signals to a vehicle steering wheel |
| 05/28/1997 | EP0692098B1 Electric current measuring device with a magnetic flux sensor, in particular for electric vehicles |
| 05/28/1997 | DE19543673A1 High voltage transformer for use with a TV receiver |
| 05/28/1997 | DE19543522A1 Einrichtung zur leitungsgebundenen, uni- oder bidirektionalen Übertragung von elektrischen Signalen zu einem Lenkrad eines Fahrzeuges Means for wireline, uni- or bi-directional transmission of electrical signals to a steering wheel of a vehicle |
| 05/28/1997 | CN2255091Y 弧焊变压器 Arc welding transformer |
| 05/27/1997 | US5633577 Battery charging system for electric vehicles |
| 05/27/1997 | US5632259 Ignition apparatus for an internal combustion engine |
| 05/22/1997 | WO1997018570A1 Cylindrical coil winding structure of flyback transformer |
| 05/20/1997 | US5630952 Plasma-arc power supply apparatus |
| 05/14/1997 | CN2254232Y Transformer for picture tube of display |
| 05/14/1997 | CN1149749A Flyback transformer |
| 05/13/1997 | US5629589 Split-configuration high-voltage diode transformer for a TV receiver |
| 05/13/1997 | US5628298 Waterproof spark plug hole cap of internal combustion engine |
| 05/13/1997 | US5628297 Ignition apparatus for internal combustion engine |
| 05/09/1997 | WO1997016885A1 Interconnection system for transmitting power between electrical systems |
| 05/07/1997 | EP0771421A1 Voltage transformer for metal-clad electric switchgear |
| 05/07/1997 | EP0719443B1 Process and design for producing inside coils |
| 05/06/1997 | US5625939 Method for assembling an inductive device |
| 05/02/1997 | EP0771058A2 Electromagnetic coupling device for charging an electric motor vehicle |
| 04/30/1997 | DE3745047C2 Closed magnetic path ignition coil assembly e.g. for motor vehicle |