| Patents for H01F 3 - Cores, yokes or armatures (3,764) |
|---|
| 05/09/1990 | EP0367602A1 Improvements in magnetic cores |
| 04/04/1990 | CN2055634U Roll type circular cross section iron core and curve cutting device |
| 03/07/1990 | EP0356998A2 Impact dot print head |
| 03/06/1990 | US4907129 Lead frame and electronic divice |
| 03/01/1990 | DE3928223A1 Magnetic device for HV pulse generator |
| 02/28/1990 | EP0355298A2 Air gap in a transformer for a switching power supply |
| 02/22/1990 | WO1990001617A1 Control device for a gas shuttle valve |
| 02/21/1990 | EP0354999A1 Positioning device for a gas exchange valve |
| 02/07/1990 | EP0353911A2 Flux spreading thin film magnetic devices |
| 01/31/1990 | EP0353029A2 Improvements in laminations |
| 01/31/1990 | EP0352453A1 Ignition coil |
| 01/31/1990 | CN1039198A Carbide die pressing method and dies for magnetic core of magnetic roller |
| 01/17/1990 | CN1006501B Inductance adjustment for transformers |
| 12/28/1989 | DE3826976A1 Pot magnet |
| 12/28/1989 | DE3821284A1 Transformer for a switched-mode power supply, or the line output stage in a television receiver |
| 12/20/1989 | CN1006145B Electromagnetic hammer actuator for impact printer |
| 12/13/1989 | EP0345771A2 Electromagnetic type fuel injection valve |
| 12/12/1989 | US4887059 Iron core of electromagnet and method of producing the same |
| 11/23/1989 | DE3816868A1 Adjustable linearity coil for video display units |
| 10/25/1989 | EP0338175A1 Manufacture of armatures for solenoid assemblies in a matrix print head, and armature of the clapper type |
| 10/18/1989 | EP0337716A2 Magnetic ribbon and magnetic core |
| 10/05/1989 | DE3809341A1 Transformer for a switched-mode power supply |
| 09/26/1989 | CA1260091A1 Magnetic cores and methods of making the same |
| 08/24/1989 | WO1989007828A1 Choke coil |
| 08/24/1989 | DE3804317A1 Material with predefinable dielectric and/or magnetic properties, method of production for the material and use of the material |
| 08/15/1989 | US4857875 Yoke |
| 07/27/1989 | WO1989006860A1 Transformer |
| 07/27/1989 | DE3801542A1 Storage inductor for storing magnetic energy and for smoothing pulsating load currents |
| 07/04/1989 | CA1256956A1 Inductance adjustment for transformers |
| 05/10/1989 | EP0315527A1 Transformer with a magnetic ferrite circuit resistant to thermal shocks |
| 05/10/1989 | CN1032881A Magnetic core for miniature transformer |
| 04/26/1989 | CN2036699U Line output transformer |
| 04/11/1989 | US4820338 Magnetic alloy; polymeric binder; titanium, silane, or aluminum coupling agent; for transformers |
| 04/11/1989 | CA1252284A1 Magnetic powder core with organo-metal compound as coupling agent |
| 04/05/1989 | EP0309679A1 Core for an inductive, frequency-independent switching device |
| 03/29/1989 | EP0309359A1 Method for automatically controlling the self-inductance of wound elements comprising a magnetic circuit with an adjustable air gap |
| 03/14/1989 | CA1251029A1 Method of manufacturing electromagnetic members |
| 03/08/1989 | EP0306041A2 Noise suppression assembly |
| 02/16/1989 | DE3726346A1 Annular core (ring core) for current sensors |
| 02/14/1989 | US4803773 Method of making magnetic cores |
| 01/25/1989 | EP0300713A1 Magnetic circuit |
| 01/24/1989 | US4800328 Inductive power coupling with constant voltage output |
| 01/10/1989 | US4797787 Lead frame and electronic device |
| 01/03/1989 | US4795959 For converting AC)power to an output |
| 12/27/1988 | US4794360 Inductive device having a core of an amorphous material |
| 12/14/1988 | EP0294966A2 Autoregulating multi contact heater |
| 12/06/1988 | US4789767 For soldering a multipin connector to a support |
| 08/24/1988 | EP0279596A1 Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core |
| 08/24/1988 | CN87212565U Electromagnetic armature for valve with thin sleeve |
| 08/18/1988 | DE3703561A1 Inductive component |
| 07/21/1988 | DE3700488A1 Power transformer having a ferromagnetic core |
| 07/06/1988 | CN86101224B Method of manufacturing electromagnetic members |
| 06/15/1988 | EP0271426A1 Method of manufacturing a multimetallic article |
| 06/15/1988 | EP0271425A1 Multimetallic article of manufacture |
| 05/26/1988 | DE3640235A1 Ferromagnetic energy converter |
| 05/18/1988 | CN87213347U Self-couple pressure-depression starter |
| 05/18/1988 | CN85104371B Peak transform |
| 04/19/1988 | US4739294 Device comprising a core consisting of parts of amorphous ferromagnetic metal and parts of non-amorphous ferromagnetic material |
| 04/12/1988 | US4737755 Inductance device comprising a ferromagnetic core with an airgap |
| 04/05/1988 | CA1234854A1 Electromagnet for electric switching device |
| 03/16/1988 | EP0259931A1 Inductive device having a core of an amorphous material |
| 03/15/1988 | US4731299 Composite magnetic material |
| 03/08/1988 | US4730145 Deflection unit having a thin-walled yoke ring for cathode-ray tubes |
| 02/03/1988 | EP0254792A1 Magnetic cores and methods of making the same |
| 01/13/1988 | EP0252141A1 Magnetic circuit device provided with a current coil. |
| 01/07/1988 | EP0251321A1 Iron core of electromagnet and method of producing the same |
| 01/07/1988 | DE3622190A1 Coil Core |
| 12/29/1987 | US4715332 Electromagnetically-actuated positioning system |
| 12/29/1987 | US4715331 Electromagnetically-actuated positioning mechanisms |
| 11/19/1987 | EP0246099A1 Solenoid |
| 11/10/1987 | US4704789 Method of manufacturing electromagnetic members |
| 10/15/1987 | DE3611906A1 Transformer or inductor for intermittent operation by pulsing at a clock frequency |
| 10/14/1987 | EP0241068A1 Device comprising a core consisting of parts of amorphous ferromagnetic metal and parts of non-amorphous ferromagnetic material |
| 09/24/1987 | DE3609617A1 Coil core |
| 09/17/1987 | DE3608519A1 Coil core |
| 09/02/1987 | EP0234454A1 Yoke |
| 08/12/1987 | EP0231754A1 Lifting magnet |
| 08/11/1987 | US4686347 Method for welding amorphous wound cores |
| 07/29/1987 | EP0230185A1 Method of producing magnetic cores for stabilization ballast in an assembly of lamps of varying discharge |
| 07/28/1987 | US4682486 Amorphous alloy toroids |
| 07/16/1987 | WO1987004298A1 Magnetic circuit device provided with a current coil |
| 07/02/1987 | WO1987003999A1 Ignition system for internal combustion engines |
| 07/02/1987 | DE3546126A1 Zuendanlage fuer brennkraftmaschinen Engine-ignition system for |
| 06/18/1987 | WO1987003736A1 Magnetic circuit with low radiated magnetic field, particularly for a high voltage transformer supplying a cathode tube |
| 06/16/1987 | EP0225830A1 Method for producing a magnetic circuit with a low magnetic-leakage field, in particular for a high-voltage transformer supplying a cathode ray tube |
| 05/27/1987 | CN86104546A Electromagnetic hammer actuator for impact printer |
| 04/07/1987 | US4656452 Transformer telephone influence tractor core shunt |
| 04/07/1987 | US4656451 Electronic noise suppressor |
| 04/07/1987 | US4656449 Field modifying elements for an electromagnet having a substantially C-shaped yoke |
| 03/18/1987 | EP0214305A1 Process for the production of a laminate of thinamorphous alloy strip and a core made of thin amorphous alloy strip |
| 03/03/1987 | US4647890 Molded ferromagnetic return circuit for a solenoid |
| 02/19/1987 | DE3529011A1 High-voltage transformer having a core |
| 02/04/1987 | EP0210699A1 Deflection unit having a thin-walled yoke ring for cathode-ray tubes |
| 02/04/1987 | EP0210691A1 Inductance device comprising a ferromagnetic core with an airgap |
| 02/04/1987 | CN85109646A Improved toroidal transformer and machines and methods for making same |
| 02/03/1987 | US4641119 Laminar magnet for magnetic resonance device and method of making same |
| 01/20/1987 | US4637843 Magnetic alloy or iron; pulse resistance |
| 01/07/1987 | EP0118454B1 Ignition coil for internal combustion engines |
| 01/06/1987 | US4635018 Core containing amorphous ferromagnetic strip material |
| 01/02/1987 | DE3620617A1 Coil core |