Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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07/30/2002 | US6426032 Method of injection-molding coil spool of ignition coil device |
07/30/2002 | US6425468 Non-contact power supply apparatus and pickup portion used therein |
07/25/2002 | US20020097593 Step-up transformer |
07/25/2002 | DE10102342A1 Ignition coil rod e.g. for IC engine, has coil body with transformer supplied with electric power by first and second end sections which are connected to coil body |
07/25/2002 | DE10026175A1 Arrangement for contactless transfer of electrical signals/energy between mobile units has external units coupled to common bus structure by capacitive element(s) |
07/24/2002 | EP1225606A2 Ignition coil for use in engine and engine having plastic cylinder head cover |
07/24/2002 | EP1225605A2 Ignition coil for use in engine and engine having plastic cylinder head cover |
07/24/2002 | EP1225604A2 Ignition coil for use in engine and engine having plastic cylinder head cover |
07/24/2002 | EP1225603A2 Ignition coil for use in engine and engine having plastic cylinder head cover |
07/24/2002 | CN2502386Y 0.5 KV outdoor dry type current transformer |
07/24/2002 | CN2502385Y 35 KV outdoor dry voltage transformer |
07/24/2002 | CN2502384Y 66KV indoor/outdoor dry voltage transformer |
07/23/2002 | US6424696 X-ray catheter using a step-up transformer |
07/23/2002 | US6424247 Inverter transformer |
07/23/2002 | US6424116 Core member, core assembly, charging port and induction-type charging apparatus |
07/23/2002 | US6422225 Ignition coil and method of making |
07/18/2002 | WO2002056648A1 High-voltage transformer |
07/18/2002 | US20020093410 Leakage flux-type power conversion transformer |
07/17/2002 | CN2501228Y Function combined current transformer set |
07/17/2002 | CN2501171Y Air high-voltage current transformer with new structure |
07/17/2002 | CN1358599A Leakage magnet reinforced electric adjustable arc welder |
07/11/2002 | WO2002053226A2 Flexible primary coil for transcutaneous energy transfer (tet) |
07/11/2002 | US20020089404 Flyback transformer |
07/10/2002 | EP1221169A1 Interface module for a local data network |
07/09/2002 | US6417752 Ignition coil |
07/04/2002 | WO2002023301A8 Wide ratio autotransformer-type current ranging |
07/04/2002 | US20020087204 Flexible transcutaneous energy transfer (TET) primary coil |
07/04/2002 | US20020083880 Remote operated vehicles |
07/03/2002 | EP1220245A1 Current transformer |
07/03/2002 | EP1220244A2 Ignition coil for use in engine and engine having plastic cylinder head cover |
07/03/2002 | CN2498721Y Dry capacitor style voltage mutual inductor |
07/02/2002 | US6414582 Low profile surface mount magnetic devices with controlled nonlinearity |
07/02/2002 | US6414579 Current transformer and method for correcting asymmetries therein |
07/02/2002 | US6414267 Method and apparatus for control of a welding power source |
06/27/2002 | US20020079999 Coil and method for making same |
06/27/2002 | US20020079863 Non-contact charger |
06/26/2002 | EP1216182A1 Module with an angle sensor technology, contactless energy transmission and contactless information transmission |
06/26/2002 | CN2497415Y Dry-type high-voltage current transformer |
06/26/2002 | CN2497414Y Inverted fully-dry type high-voltage current transformer |
06/26/2002 | CN1355543A Mutual current inductor for detecting pulse current |
06/25/2002 | US6411528 Switching power circuit and insulating converter transformer |
06/25/2002 | CA2134814C Engine ignition and control system |
06/20/2002 | WO2002049049A1 High voltage transformer with over voltage protection, and method for over voltage protection |
06/20/2002 | WO2002007083A3 Wireless communication device attachment and detachment device and method |
06/20/2002 | US20020075612 High voltage transformer with over voltage protection, and method for over voltage protection |
06/20/2002 | US20020074956 Flyback transformer |
06/19/2002 | CN2496122Y Primary winding flush current mutual inductor |
06/19/2002 | CN2496121Y Device for preventing fraudulent use of electricity on primary wire inlet and outlet end of current mutual inductor used for high-voltage electric energy metering apparatus |
06/19/2002 | CN2496120Y Front-located large current mutual-inductance apparatus of switch cabinet |
06/19/2002 | CN2496030Y Voltage-current integrated inverter |
06/18/2002 | US6407470 Electric power transmission device |
06/13/2002 | US20020070624 Slip-ring mounting assembly for high-power rotary current collector system |
06/13/2002 | US20020070623 Cleaning/cooling of high-power rotary current collector system |
06/13/2002 | DE10061674A1 Spark ignition power feed for motor vehicle engine cylinder, has spark electrode extending into combustion chamber and having high frequency transformer connected directly to it |
06/12/2002 | EP1212762A1 Device for the displacement, in particular, the rotative or linear displacement of an active load |
06/06/2002 | US20020067233 Ignition coil for an internal combustion engine |
06/06/2002 | DE10058867A1 Generating and dimensioning high currents involves passing electrically conducting material through internal chamber of unit formed by at least one power unit and dimensioning unit |
06/05/2002 | EP1211776A2 Inductive power distribution system |
06/05/2002 | CN2494552Y Current transformer |
05/29/2002 | EP1209705A1 Internal combustion engine ignition coil |
05/29/2002 | EP1209704A1 Choke coil with ferromagnetic material core |
05/29/2002 | EP1208386A1 Sensor for current measurement and electricity meter |
05/29/2002 | DE10058631A1 Drosselspule mit einem Kern aus ferromagnetischem Material Choke coil having a core made of ferromagnetic material |
05/23/2002 | DE10057567A1 Method for producing an ignition coil for an internal combustion engine involves casting of at least parts of the low-voltage zone in a plastic material differing from that used for casting the secondary coil |
05/22/2002 | CN1085388C Variable resistor for high voltage |
05/21/2002 | US6392865 High-speed dual-coil electromagnetic valve and method |
05/16/2002 | US20020058971 Cushioned primary coil for transcutaneous energy transfer |
05/16/2002 | US20020057185 Ignition coil for an internal combustion engine |
05/16/2002 | US20020057182 Current transformer and method for correcting asymmetries therein |
05/16/2002 | US20020057181 Ignition coil for internal-combustion engine |
05/16/2002 | US20020057179 Ignition coil for use in internal combustion engine |
05/16/2002 | US20020057170 Ignition coil |
05/16/2002 | US20020057169 Inductive component comprising a rod-shaped core |
05/16/2002 | US20020057167 Linear filter |
05/16/2002 | US20020057164 Isolation transformer |
05/16/2002 | US20020057162 Current transformer and method for correcting asymmetries therein |
05/16/2002 | US20020057161 Non-contact electric power transmission apparatus |
05/16/2002 | US20020057027 Rotating variable frequency transformer with high voltage cables |
05/16/2002 | DE10143055A1 Ignition unit comprises a housing accommodating a spark plug, an ignition coil electrically joined to the spark plug connector section, and a connector element for supplying voltage to the ignition coil |
05/15/2002 | CN2491954Y Ferromagnetic saturation current mutal-inductor |
05/15/2002 | CN1349216A Head drum component, and magnetic tape driving means using same |
05/14/2002 | US6389318 Magnetic shield for primary coil of transcutaneous energy transfer device |
05/14/2002 | US6388549 Magnet core |
05/14/2002 | US6388548 Non-contact transformer and vehicular signal relay apparatus using it |
05/14/2002 | US6386189 Core with bobbin of polyphenylene ether coating |
05/10/2002 | WO2002037512A1 Method and apparatus for controlling the magnetization of current transformers and other magnetic bodies |
05/09/2002 | US20020055763 Primary transcutaneous energy transfer coil with operational decoupling |
05/08/2002 | CN1084521C Ignitor coil filled with resin material |
05/07/2002 | US6384703 Fully immersed magnetic transformer with multiple condensing surfaces and method |
05/07/2002 | US6384587 Non-contact signal and power transmission apparatus |
05/02/2002 | WO2002035578A1 Electrical lighting system |
05/02/2002 | US20020050904 Ignition coil |
05/02/2002 | EP0954840B1 Device for displaying alpha numeric symbols and/or graphic symbols |
05/02/2002 | DE10051156A1 Method for medium-frequency transformer power transmission via a transformer linked to primary/secondary independently controlled electronic power converters supplies alternating clock pulses to the converters. |
05/01/2002 | CN2489444Y Plane spiral coil flyback transformer |
05/01/2002 | CN2489443Y Helical flyback transformer |
05/01/2002 | CN2489442Y Antirust current transformer |
05/01/2002 | CN2489441Y Rotary transformer |
05/01/2002 | CN2489343Y A.C. sensor |
05/01/2002 | CN1083981C DC and AC current sensor having minor-loop operated current transformer |