Patents for H01F 3 - Cores, yokes or armatures (3,764)
12/1986
12/30/1986US4631809 Process for manufacture cores of electromagnet
12/30/1986EP0205754A2 Ferromagnetic core for an inductive position sensor
12/17/1986CN85104747A High efficiency silicon steel sheet for electrical machinery
12/03/1986CN85104371A Peak transformer
10/1986
10/15/1986EP0197698A2 Inductance adjustment for transformers
10/15/1986CN85106186A Technology of magnetic one-way valve
09/1986
09/24/1986CN86101693A Inductance adjustment for transformers
09/12/1986WO1986005314A1 Laminate of thinamorphous alloy strip, core made of thin amorphous alloy strip, and process for their production
09/10/1986CN86101224A Method of manufacturing electromagnetic members
09/03/1986EP0193079A2 Method of manufacturing electromagnetic members
08/1986
08/27/1986EP0192331A1 Electromagnet
08/27/1986EP0192307A1 Transformer comprising an air gap
08/13/1986EP0190802A1 Core containing amorphous ferromagnetic strip material
07/1986
07/22/1986US4601765 Powdered iron core magnetic devices
07/22/1986US4601753 Powdered iron core magnetic devices
07/22/1986US4601458 Magnetic air valve
07/08/1986US4599595 Laminated iron core for transformers, choke coils and the like
06/1986
06/25/1986EP0185262A1 Lifting magnet
05/1986
05/27/1986US4591819 Inductance adjustment for transformers
04/1986
04/22/1986CA1203585A1 Magnetic circuit for an yttrium-iron garnet crystal resonator for an oscillator
03/1986
03/18/1986US4577174 Electromagnet for electric switching device
03/12/1986EP0173847A1 Lead frame and electronic device employing the same
02/1986
02/11/1986CA1200407A1 Magnetic devices using amorphous alloys
12/1985
12/10/1985US4558297 Saturable core consisting of a thin strip of amorphous magnetic alloy and a method for manufacturing the same
11/1985
11/12/1985US4553122 Cored magnet with lightweight large area pole pieces
11/06/1985EP0160147A2 Laminated iron core for electric machine
11/06/1985EP0160121A1 Electromagnet for electrical switching devices, particularly for contactors
10/1985
10/15/1985US4546753 Ignition coil for internal combustion engines
10/09/1985EP0157669A1 Composite magnetic circuit and method for manufacturing such a circuit
10/02/1985EP0156016A2 Core for an inductive, frequency-independent switching device
08/1985
08/27/1985US4536952 Preparation of laminated iron core of electric device
08/27/1985CA1192636A1 Ignition coil core and method of making it
08/20/1985CA1192174A1 Magnetic air valve
08/13/1985US4535376 Magnetic head incorporating an amorphous magnetic metallic film having a thickness equal to a track width
06/1985
06/19/1985EP0145245A2 Core of a noise filter comprised of an amorphous alloy
06/19/1985EP0145178A1 Magnetic powder composition
05/1985
05/07/1985US4516096 Magnetic circuit for an yttrium-iron garnet crystal resonator for an oscillator
01/1985
01/16/1985EP0131352A1 Process for manufacturing cores of electromagnet
01/08/1985CA1180744A1 Magnetoelastic transducer
12/1984
12/12/1984EP0035037B1 Microcrystalline thin strip for magnetic material having high magnetic permeability
12/11/1984US4487812 Magnetic amorphous alloy sheet having a film thereon
11/1984
11/06/1984US4480377 Method of making an ignition coil core
10/1984
10/30/1984US4480208 Stator structure for an electromagnetic device
10/17/1984EP0121846A1 High current reactor
10/16/1984CA1176324A1 Laminated grid and web magnetic cores
10/09/1984CA1175877A1 Pincushion distortion correction apparatus
10/02/1984US4474069 Magnetoelastic transducer
09/1984
09/25/1984US4473892 Rugged, vibration resistant magnetic core stack having low mass
09/19/1984EP0118454A1 Ignition coil for internal combustion engines.
09/12/1984EP0118198A1 Magnets
08/1984
08/21/1984CA1173125A1 Laminated core of transformer
08/07/1984CA1172006A1 Method for making cores for alternating current applications
06/1984
06/26/1984US4456898 Thermal compensators for magnetic circuits
05/1984
05/30/1984EP0109714A1 Magnetic circuit for a YIG sphere resonator of an oscillator
05/29/1984US4450959 Packaging for electrical components
05/23/1984EP0108921A1 Toroidal magnetic strip wound core with air gap and method of making such a core
05/08/1984US4447795 Laminated grid and web magnetic cores
04/1984
04/10/1984CA1165150A1 Rolled core
04/04/1984EP0104792A1 Method of making an ignition coil core
03/1984
03/07/1984EP0102261A1 Method of obtaining a coil with a closed magnetic circuit and a permanent magnet for the ignition of combustion engines
03/01/1984WO1984000843A1 Ignition coil for internal combustion engines
02/1984
02/28/1984US4433474 For electromagnetic devices
02/14/1984US4431979 Synthetic resin-bonded electromagnetic component and method of manufacturing same
01/1984
01/03/1984US4424503 Three-phase and three-leg core of core-type transformer
01/03/1984CA1159895A1 Amorphous metal lamp ballast having a capacitor integral with the magnetic core
12/1983
12/20/1983US4422061 Laminated core of transformer
12/06/1983CA1158325A1 Core for electromagnetic induction device
11/1983
11/08/1983US4414521 Low reluctance transformer core
10/1983
10/11/1983US4409523 Pincushion distortion correction apparatus
08/1983
08/24/1983EP0086485A2 Wound iron core
08/10/1983EP0085140A2 Magnetic wire
07/1983
07/12/1983US4393364 Coil element
06/1983
06/14/1983CA1148229A1 Inductive component and method for its production
05/1983
05/17/1983US4383856 Method for manufacturing multilayer head core
04/1983
04/26/1983US4381506 Position-electrical signal transducer
04/26/1983CA1145381A1 Low voltage transformer relay
04/20/1983EP0076918A1 Amorphous magnetic core and process for manufacturing to improve efficiency
03/1983
03/09/1983EP0073395A1 Magneto-elastic transducer
02/1983
02/01/1983CA1140666A1 Electroacoustic device
01/1983
01/25/1983CA1140226A1 Core lamination for shell-type cores, particularly for transformers
01/25/1983CA1140036A1 Bonded amorphous metal electromagnetic components
01/18/1983CA1139815A1 Edgewise coiled metal strip core for dynamoelectric machine
01/11/1983US4368447 Rolled core
12/1982
12/28/1982US4366401 Electromagnetic devices
11/1982
11/02/1982US4357251 Method of ceramic preparation
09/1982
09/28/1982US4352080 Ferrite core
09/14/1982CA1131725A1 Magnetic core structure
08/1982
08/31/1982US4347449 Process for making a magnetic armature of divided structure and armature thus obtained
08/17/1982CA1129893A1 Method of ceramic preparation
07/1982
07/21/1982EP0056272A2 Method for preparation of a laminated iron core and laminated iron core of an electric device
06/1982
06/29/1982US4337087 Microcrystalline thin strip for magnetic material having high permeability, a method of producing the same and articles made from the thin strip
06/08/1982CA1124998A1 Process for making a divided structure magnetic armature and armature made by this process
05/1982
05/25/1982CA1124344A1 Core with step lap joints
05/12/1982EP0051168A1 Package for electrical components
04/1982
04/13/1982US4324933 Blend of refined paraffin crude oil, refined naphthenic oil, and pour point depressant
03/1982
03/30/1982US4322481 Loss characteristics in amorphous magnetic alloys
03/23/1982US4321652 Low voltage transformer relay
03/17/1982EP0047266A1 Low-loss reactor
02/1982
02/17/1982EP0045739A1 A device for indicating an alternating current in a conductor
02/16/1982CA1118326A1 Magnetic core comprised of low-retentivity amorphous alloy
1 ... 27 28 29 30 31 32 33 34 35 36 37 38