| Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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| 02/13/2003 | US20030030342 Contactless energy transfer apparatus |
| 02/13/2003 | US20030029957 System and method for manufacturing an ignition coil |
| 02/06/2003 | US20030026027 Signal transmission apparatus and signal reproduction apparatus using a rotary transformer |
| 02/06/2003 | DE10117846C1 Electric component in the form of a compact transformer/fluorescent lamp ballast in a kettle-like casing has a liquid cooling mechanism for a coil and a magnetic core. |
| 02/05/2003 | CN2534663Y Dry type current mutual inductor |
| 02/05/2003 | CN1101051C Ignition coil bank-winding device |
| 01/30/2003 | WO2003008799A1 Ignition coil, and internal combustion engine ignition device |
| 01/30/2003 | US20030021834 Method for use of hyaluronic acid in wound management |
| 01/30/2003 | US20030020588 Core |
| 01/30/2003 | US20030020582 Flyback transformer |
| 01/29/2003 | EP1280168A1 Ignition coil with rod shaped core |
| 01/29/2003 | EP1208386B1 Sensor for current measurement and electricity meter |
| 01/29/2003 | CN2533559Y Multipurpose current transformer |
| 01/29/2003 | CN1393893A Flyback transformer with planar spiral winding |
| 01/28/2003 | US6512437 Isolation transformer |
| 01/22/2003 | CN1393020A Electromagnetic device and high-voltage geratating device and method of producing electromagnetic device |
| 01/21/2003 | US6508239 Ignition coil device for engine |
| 01/16/2003 | WO2003005380A2 Device for the inductive transmission of electrical power |
| 01/16/2003 | US20030011362 Current transformer |
| 01/15/2003 | EP1276121A2 Current transformer |
| 01/15/2003 | EP1275208A2 Array for contactless transmission of electrical signals or energy |
| 01/15/2003 | EP1275207A1 Device for transferring electrical energy or signals |
| 01/15/2003 | CN2531509Y Tubular electric conductor current transformer |
| 01/15/2003 | CN2530766Y Three phase magnetic saturation D.C. electric welding machine power supply |
| 01/15/2003 | CN1391334A Differential mode and common mode integrated filter |
| 01/15/2003 | CN1099123C Single-unit bobbin for flyback transformer |
| 01/15/2003 | CN1099122C Single body bobbin structure for flyback transformer |
| 01/14/2003 | US6507262 Magnetic core that is suitable for use in a current transformer, method for the production of a magnetic core and current transformer with a magnetic core |
| 01/14/2003 | US6507261 Coil bobbin for current transformer |
| 01/14/2003 | US6507131 High-voltage transformer |
| 01/02/2003 | US20030001707 Rotary transformer with synchronized operation |
| 01/02/2003 | US20030001559 Hall-effect current detector |
| 01/02/2003 | EP1272011A1 Pulse transformer with parallel primary windings |
| 01/02/2003 | EP1271159A2 Hall-effect current detector |
| 01/02/2003 | EP1269601A1 Electric suspended conveyor with contactless energy transmission |
| 01/01/2003 | CN1097844C Two-winding horizontal deflection coil strcture for deflection yoke |
| 12/31/2002 | US6501365 Ignition coil having a circular core and a method of making the same |
| 12/31/2002 | US6501361 Rotary transformer with synchronized operation |
| 12/31/2002 | US6500316 Apparatus for rotary cathode electroplating with wireless power transfer |
| 12/27/2002 | WO2002023301A9 Wide ratio autotransformer-type current ranging |
| 12/26/2002 | US20020195973 Integrated filter with common-mode and differential-mode functions |
| 12/26/2002 | US20020195972 Lamp operating device having a starter circuit |
| 12/26/2002 | US20020195092 Ignition coil for internal combustion engine |
| 12/24/2002 | US6498456 Inductive coupling system with capacitive parallel compensation of the mutual self-inductance between the primary and the secondary windings |
| 12/19/2002 | US20020190365 Non-contact type IC card and process for manufacturing-same |
| 12/18/2002 | EP1266231A2 Instrument transformer |
| 12/18/2002 | CN2526959Y Low-consumption energy-saving double-tube fluorescent lamp ballast |
| 12/18/2002 | CN1385868A High-voltage transformer with strong coupling |
| 12/12/2002 | US20020184751 Method of assembling separable transformer |
| 12/12/2002 | DE10128075A1 Auxiliary voltage supply for a solid state switch, has transformer with isolating layer between cores and AC converter connected to primary coil |
| 12/11/2002 | EP1265460A2 Inverter transformer |
| 12/11/2002 | CN2525663Y Dry high voltage current mutual inductor |
| 12/11/2002 | CN2525662Y Dry current mutual inductor |
| 12/11/2002 | CN2525661Y Current mutual inductor special for transformer |
| 12/11/2002 | CN2525660Y Dry voltage mutual inductor |
| 12/11/2002 | CN1096089C Molding structure for line output transformer |
| 12/10/2002 | US6492891 Transformer device, high voltage generating apparatus having the same, and lighting system having them |
| 12/05/2002 | WO2002097831A1 Internal combustion engine ignition coil, and method of producing the same |
| 12/05/2002 | US20020182898 Electromagnetic induction-type connector |
| 12/05/2002 | US20020180575 Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap |
| 12/05/2002 | US20020180572 Electromagnetic device and high-voltage generating device and method of producing electromagnetic device |
| 12/04/2002 | EP1263005A1 Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap |
| 12/04/2002 | EP1261844A1 System for generating electric energy from a magnetic field |
| 12/04/2002 | CN2524351Y Silicon steel sheet current mutual-inductor with antirust protective covering |
| 12/04/2002 | CN2524350Y Current mutual-inductor for transformer |
| 12/04/2002 | CN2524349Y Energy-saving anti-theft mutual-inductor |
| 12/03/2002 | US6489874 Non-contact electric power transmission apparatus |
| 11/28/2002 | WO2002094139A1 Apparatus for contactless power transfer for implantable medical device |
| 11/28/2002 | US20020177884 Apparatus for contactless power transfer for implantable medical device |
| 11/28/2002 | US20020176460 Saturable reactor and power source apparatus for pulse laser utilising same |
| 11/28/2002 | US20020176268 Inverter transformer |
| 11/28/2002 | US20020175798 Welding power supply transformer |
| 11/28/2002 | US20020175797 Current mode coupler having a unitary casing |
| 11/28/2002 | US20020175796 Ingition coil for internal combustion engine |
| 11/27/2002 | CN2523000Y Multi-waveband refernece ballast for gas discharge lamp |
| 11/21/2002 | US20020171527 Socket for lamp transformer for lamp, and method of manufacturing transformer for lamp |
| 11/21/2002 | US20020171525 Electromagnetic connecting device for high voltage and large current |
| 11/21/2002 | US20020171524 Ignition coil |
| 11/21/2002 | US20020171523 Ignition oil |
| 11/21/2002 | DE10125212A1 Glimmzünder Glow igniter |
| 11/20/2002 | EP1259099A2 Glow starter |
| 11/20/2002 | EP1258892A2 Electromagnetic connecting device for high voltage and large current |
| 11/20/2002 | CN2521618Y Secondary loop voltage reduction automatic compensator for voltage mutual inductor |
| 11/20/2002 | CN1380156A Power supply system for arc welding |
| 11/19/2002 | US6483218 Brushless electric exciter for dynamoelectric machines |
| 11/14/2002 | WO2002091399A1 Device for the subcutaneous transfer of energy or data |
| 11/14/2002 | US20020167822 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| 11/14/2002 | US20020167384 Rotary variable differential transformer |
| 11/13/2002 | EP1255671A2 Remote operated vehicles |
| 11/13/2002 | CN1379425A Heat overload relay having current transformer |
| 11/12/2002 | US6479976 Method and apparatus for accurate measurement of pulsed electric currents utilizing ordinary current transformers |
| 11/07/2002 | WO2002089158A1 Transformer |
| 11/07/2002 | DE10123151A1 Vorrichtung zur subkutanen Übertragung von Energie oder Daten Device for subcutaneous transmission of energy or data |
| 11/06/2002 | EP1255260A1 Stick-type ignition coil having improved structure against crack or dielectric discharge |
| 11/06/2002 | EP1255259A1 Stick-type ignition coil having improved structure against crack or dielectric discharge |
| 11/06/2002 | EP1254465A1 Coupling device with galvanic insulation ensuring visually displayed switching off |
| 11/06/2002 | EP1254464A1 Connection system for submarine acoustic antenna |
| 11/06/2002 | CN2519988Y Energy-saving inductive ballast for 35 W ceramic inner tube metal halide lamp |
| 11/05/2002 | US6476520 Plug connection |
| 10/31/2002 | US20020158740 Ignition apparatus having reduced electric field HV terminal arrangement |