Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 38 - Adaptations of transformers or inductances for specific applications or functions
Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550)
09/2003
09/09/2003US6617949 Choke coil
09/03/2003EP1287602A4 Contactless energy transfer apparatus
09/03/2003CN1440226A Magnetic ballasts
08/2003
08/28/2003WO2003071562A1 Ignition coil for internal combustion engine
08/27/2003EP0918342B1 Slit transformer
08/27/2003CN2569308Y Gas insulation electronic type capacitive voltage mutual inductor
08/27/2003CN1438661A Bar-shape iron-core transformer and lamp seat with same
08/26/2003US6611190 Transformer for inverter circuit
08/26/2003US6611189 Welding power supply transformer
08/20/2003EP1337001A1 Device for contactless transmission of electrical signals and /or energy
08/20/2003EP1336975A2 Bar core transformer and lamp base comprising it
08/19/2003US6608543 High pulse rate ignition system
08/14/2003WO2003067615A1 Current transformer having an amorphous fe-based core
08/14/2003WO2003067078A1 Electronic module for internal combustion engine ignition coil
08/14/2003US20030151483 Current transformer having an amorphous fe-based core
08/14/2003US20030151482 Wide ratio autotransformer-type current ranging
08/14/2003US20030151375 Rod-core transformer and a lamp cap having a rod-core transformer
08/14/2003US20030150440 Ignition coil for internal combustion engine
08/14/2003CA2418747A1 Rod-core transformer and a lamp cap having a rod-core transformer
08/13/2003EP0787348B1 Epoxy resin casting composition
08/13/2003CN2566430Y Special-purpose mutual inductor for outdoor transformer
08/13/2003CN1435855A Mutual inductance conducting device
08/12/2003US6606020 Low cost method of making a high impedance electrical transformer and products of said method
08/07/2003WO2003065389A1 Translator
08/07/2003US20030146062 Electric suspended conveyor with contactless energy transmission
08/06/2003EP1333368A2 Three-dimensional information detecting device, three-dimensional information detecting sensor device, and three-dimensional information indicating device
08/06/2003EP1333367A2 Three-dimensional information detecting device, three-dimensional information detecting sensor device, and three-dimensional information indicating device
08/06/2003EP1106036B1 Magnetron drive step-up transformer and transformer of magnetron drive power supply
08/06/2003CN2565124Y Dry-high-voltage current transformer with standing upside down structure
08/06/2003CN2565123Y Hall rotary transformer
08/06/2003CN2565122Y Ballast for neon lamp
08/05/2003US6603381 Primary conductor for a transformer
07/2003
07/31/2003US20030142073 Three-dimensional information detecting device, three-dimensional information detecting sensor device, and three-dimensional information indicating device
07/30/2003CN2563732Y Medium frequency transformer special for large medium frequency ozone generator
07/30/2003CN2563582Y Voltage sensor for AC current monitoring
07/30/2003CN1433033A Inductance part with permanent magnet set in magnetic gap
07/30/2003CN1433032A 可调感应器 Adjustable sensor
07/29/2003US6600402 Bobbins, transformers, magnetic components, and methods
07/29/2003US6600273 High-power electronic ballast for fluorescent lamp
07/24/2003WO2003005380A3 Device for the inductive transmission of electrical power
07/24/2003US20030137382 Transformers
07/24/2003US20030136391 Resin-insulated ignition coil
07/23/2003CN2562330Y Dry high voltage current mutual inductor
07/23/2003CN2562329Y Dry high voltage current mutual inductor
07/23/2003CN2562328Y Dry insulating capacitance voltage mutual inductor
07/23/2003CN2562327Y Three-phase low-voltage mixed connection assembled mutual inductor
07/23/2003CN2562326Y Three-column dry assembled mutual inductor
07/23/2003CN1431519A Transformer for gas insulated electrical appts.
07/22/2003US6597076 System for wirelessly supplying a large number of actuators of a machine with electrical power
07/22/2003US6594885 Applying to outer surface of ferrite core first high dielectric material in tacky, partially cured state, winding conductive wire onto and embedding into dielectric, applying second high dielectric material, curing to form hermetic seal
07/17/2003WO2003058650A1 Low voltage, high current power transformer
07/16/2003CN2561066Y Combined mutual inductor for metering
07/16/2003CN2561065Y Dry-type high-voltage current mutual inductor
07/15/2003US6594292 Saturable reactor and power source apparatus for pulse laser utilizing same
07/15/2003US6594166 Step-up transformer
07/15/2003US6593839 Leakage flux-type power conversion transformer
07/15/2003US6593836 Bobbins, transformers, magnetic components, and methods
07/10/2003WO2003055632A1 Device for electric arc welding (variants) and method for producing the magnetic core of said device
07/10/2003US20030128092 Tunable inductor
07/10/2003US20030128090 Case free ignition apparatus
07/10/2003US20030128089 Transformer for gas insulated electric apparatus
07/09/2003EP1326080A2 Voltage sensor for gas insulated electric apparatus
07/09/2003EP1325394A1 Wide ratio autotransformer-type current ranging
07/09/2003CN1429393A Inductive translator composed of two spools with respective cores
07/09/2003CN1428740A Three dimensional information detector, three dimensional information detecting sensor device and three dimensional information indicator
07/03/2003US20030122645 Stick-type ignition coil having improved structure against crack or dielectric discharge
07/02/2003EP1324357A1 Electromagnetic device and high-voltage generating device and method of producing electromagnetic device
07/02/2003EP1323228A1 Reduction of capacitance effects in potential transformers
07/02/2003EP1323147A1 Inductive transformer
07/02/2003EP0972290B1 Electric ballast
07/02/2003CN2559085Y Equipotential high-voltage current transformer
06/2003
06/26/2003WO2003052793A2 Contactless energy transfer apparatus
06/26/2003WO2003052322A1 Electronic ignition circuit for oil burners
06/26/2003WO2003052246A1 Direct fuel-injected internal combustion engine having improved spark ignition system
06/26/2003US20030117250 Inductive translator composed of two spools with respective cores
06/26/2003US20030117248 Removable mounting bracket
06/26/2003US20030117228 Circuit component and transformer device with controllable impedance and with systems equipped with such devices
06/26/2003DE20220326U1 Electric power switch has latching device comprising sprung latching blade and opening for receiving catch, for connecting secondary part of current transformer to power switch
06/25/2003EP1321951A1 Compact measurement apparatus for the protection of medium-voltage line
06/25/2003EP1320858A1 A method of manufacturing an inductor
06/25/2003CN2558055Y Capacitance type voltage inductor
06/25/2003CN1426074A Flyback transformer and device for fixing leakage resistance in said transformer
06/24/2003US6583701 Inductor with variable air-gap separation
06/19/2003US20030112112 Flyback transformer
06/19/2003US20030112109 Low voltage bobbin of flyback transformers
06/18/2003EP1319889A1 Luminaire with inductive energy transmission
06/18/2003CN1112049C Motion vector detecting device
06/17/2003US6580347 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
06/12/2003US20030107462 Flyback transformer and device for holding bleeder resistor in such transformer
06/12/2003US20030107461 Ignition apparatus having increased leakage to charge ion sense system
06/12/2003US20030106956 System and method for winding an ignition coil
06/11/2003EP1318298A2 Ignition apparatus having increased leakage to charge ion sense system
06/11/2003CN2555555Y 低噪声镇流器 Low noise ballast
06/11/2003CN1423384A Alternator fixing device
06/10/2003US6577115 Apparatus with separated conductors
06/10/2003US6575151 Ignition coil for internal combustion engine
06/10/2003CA2134818C Load detection method
06/05/2003US20030102949 Core structure of stator transformer for rotary transformer
06/03/2003US6571784 Ignition coil for use in engine and engine having plastic cylinder head cover
06/03/2003CA2269243C Device for contactless transmission of electric energy
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