Patents for H01F 3 - Cores, yokes or armatures (3,764)
06/1999
06/16/1999CN1220026A DC transformer/reactor
06/16/1999CN1219911A Electric drive system for vehicles
06/16/1999CN1043670C Nanocrystalline alloy having excellent pulse attenuation characteristics, its use and method of producing same
06/10/1999WO1999028919A1 Magnetic core assemblies
06/09/1999EP0921536A1 Electromagnetic actuator with lamination stack-housing dovetail connection
06/09/1999CN2323460Y Ferromagnetic core
05/1999
05/14/1999WO1999023674A1 Cascading electromagnetic armature
04/1999
04/08/1999WO1999017319A1 Method for increasing the operating frequency of a magnetic circuit and corresponding magnetic circuit
04/07/1999EP0906651A2 Rotating electrical machine plants
03/1999
03/24/1999EP0903002A1 Rotating electrical machine comprising high-voltage winding and cast compound supporting the winding and method for manufacturing such machine
03/17/1999EP0901711A1 A rotating asynchronous converter and a generator device
03/17/1999EP0901709A2 A device in the stator of a rotating electric machine and such a machine
03/17/1999EP0901706A2 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
03/17/1999EP0901705A1 Insulated conductor for high-voltage windings
03/17/1999EP0901704A1 High-voltage plants with electric motors
03/17/1999EP0901703A1 A turbo-generator plant
03/17/1999EP0901702A1 A hydro-generator plant
03/17/1999EP0901701A1 Synchronous compensator plant
03/17/1999EP0901700A2 Rotating electric machines with magnetic circuit for high voltage and method for manufacturing the same
03/03/1999EP0899754A1 Matgnetic core including Fe-based glassy alloy
03/03/1999EP0899753A1 Magnetic cores of bulky and laminated types
02/1999
02/25/1999WO1999009566A1 Magnetic flux concentration device
02/03/1999EP0720588B1 Method and apparatus for treating fluid with radio frequency signals
02/02/1999US5867314 Structure of optical passive device and assembling method therefor
01/1999
01/26/1999US5864195 Stator component including limbs provided with recesses at their outer surface
01/21/1999WO1999003116A1 Coil
01/13/1999EP0889797A2 An electric drive system for vehicles
01/07/1999EP0888662A2 Electromagnetic device
01/07/1999EP0888661A2 An electric high voltage ac machine
01/07/1999EP0888628A1 Transformer/reactor
01/07/1999EP0888627A1 A dc transformer/reactor
01/06/1999CN1041575C Sintered transformer of inductor core of NiZn ferrite material
12/1998
12/09/1998CN1201138A Core group of linear displacement sensor and mfg. method therefor
12/08/1998US5847518 High voltage transformer with secondary coil windings on opposing bobbins
11/1998
11/24/1998US5841335 Choke coil
11/24/1998US5839185 Method of fabricating a magnetic flux concentrating core
10/1998
10/06/1998US5816894 Gap-providing ferrite core half and method for producing same
09/1998
09/29/1998US5815062 Magnetic core
09/29/1998US5815060 Inductance element
09/24/1998WO1998041997A1 Electrical choke
09/24/1998CA2283899A1 Electrical choke for power factor correction
09/23/1998CN1193540A Multifunctional magnetotherapeutical health care electric heating carpet
09/22/1998US5812045 Inverter transformer
09/09/1998EP0862781A1 Fuel injection valve
08/1998
08/26/1998EP0647180B1 Thermoplastic coated magnetic powder compositions and methods of making same
08/19/1998CN1190820A 静态磁铁发电机 Static magnet generator
08/13/1998DE19804277A1 Dynamo with static permanent magnet(s) for water-power stations, thermal power stations or atomic power stations
08/06/1998WO1998034244A1 Winding in transformer or inductor
08/06/1998CA2278236A1 Winding in transformer or inductor
08/04/1998US5790005 Switching converter circuit
07/1998
07/30/1998DE19735748A1 Powder mould coating insulated electric/magnetic sheet-steel segment e.g. for electric machine stator
07/14/1998US5781090 Control mechanism
07/09/1998WO1998029929A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
07/09/1998CA2275619A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
06/1998
06/25/1998WO1998027636A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
06/25/1998WO1998027635A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
06/25/1998WO1998027634A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
06/25/1998CA2279394A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
06/25/1998CA2275638A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
06/25/1998CA2275616A1 Device and method relating to protection of an object against over-currents comprising over-current reduction
06/24/1998EP0849747A1 Noise-limiting transformer apparatus and method for making
06/17/1998EP0848391A1 Power coil
06/16/1998US5767816 Ferrite core marker
06/12/1998CA2192755A1 Power coil
06/10/1998EP0847125A1 An assembled structure having an enlarged heat transfer area for heat radiation therefrom
06/10/1998EP0847109A2 Laminated article comprising coupling elements of male-female type
06/03/1998EP0845097A1 Mine-clearing coil and device using same
05/1998
05/26/1998US5757272 Elongated member serving as a pulse generator in an electromagnetic anti-theft or article identification system and method for manufacturing same and method for producing a pronounced pulse in the system
05/26/1998US5756162 Method for manufacturing sendust core powder
05/19/1998US5754087 High-voltage transformer for a television receiver
05/19/1998US5752308 Method of forming a hard magnetic valve actuator
05/12/1998US5751207 Noise suppression chokes
05/06/1998EP0839379A1 Method of winding electric tape to give a large coil
05/05/1998US5748013 Combined magnetic core
04/1998
04/28/1998US5745367 Fly back transformer, and its inductance adjusting method and device
04/08/1998EP0834889A2 Stator component
04/02/1998WO1998013837A1 Fuel injection valve
03/1998
03/26/1998DE19639117A1 Brennstoffeinspritzventil Fuel injection valve
03/25/1998CN1177190A Yoke coils impregnating and potting compound, and the process thereof
03/10/1998US5725686 Magnetic alloy of copper, gold, titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum and tungsten with silicon, boron and iron
02/1998
02/25/1998CN1174384A Permanent magnetic field weak hole generator
02/12/1998WO1997045288A3 An electric drive system for vehicles
01/1998
01/29/1998WO1997047067A3 A device in the stator of a rotating electric machine and such a machine
01/29/1998WO1997045929A3 Earthing device and rotating electric machine including the device
01/28/1998EP0821375A1 Use of a suppression choke in switching power supplies
01/22/1998WO1997045933A3 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
01/22/1998WO1997045926A3 An electric high voltage ac machine
01/22/1998WO1997045921A3 Electromagnetic device
01/22/1998DE19728667A1 High voltage transformer for gas discharge lamp
01/21/1998CN1170944A High-tensiont ransformer
01/15/1998WO1997045919A3 Rotating electric machines with magnetic circuit for high voltage and method for manufacturing the same
01/15/1998WO1997045907A3 Rotating electrical machine plants
01/14/1998EP0818791A1 High voltage transformer
12/1997
12/30/1997US5703559 For a magnetic core for charging a magnetic circuit with alternating field
12/24/1997WO1997048965A1 Mine-clearing coil and device using same
12/11/1997WO1997047067A2 A device in the stator of a rotating electric machine and such a machine
12/10/1997CN1167328A Core and sheet type coil of using it
12/04/1997WO1997045939A1 Rotating electrical machine comprising high-voltage winding and cast compound supporting the winding and method for manufacturing such machine
12/04/1997WO1997045938A1 Rotating electrical machine comprising high-voltage stator winding and spring-device supporting the winding and method for manufacturing such machine
12/04/1997WO1997045933A2 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
1 ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38