| Patents for H01F 3 - Cores, yokes or armatures (3,764) |
|---|
| 08/11/1992 | US5138393 Magnetic core |
| 08/11/1992 | US5137585 Melting and vaporizing with laser beam; in situ alloying |
| 07/21/1992 | US5132544 System for irradiating a surface with atomic and molecular ions using two dimensional magnetic scanning |
| 07/14/1992 | US5130516 Choke for tig welding machines or plasma cutting installations |
| 07/07/1992 | US5128646 Ignition coil for an internal combustion engine |
| 07/07/1992 | US5128645 Ignition coil for an internal combustion engine |
| 07/07/1992 | US5128614 Compound core element having a pair of uniaxial anisotropic ferromagnetic cell components with different coercive field strength for a thin film sensor |
| 06/17/1992 | EP0214305B1 Process for the production of a laminate of thinamorphous alloy strip and a core made of thin amorphous alloy strip |
| 06/09/1992 | US5121300 Lead frame and electronic device employing the same |
| 06/03/1992 | CN2106372U Rivet-jointed semi-enclosed electric meter pressure core |
| 05/26/1992 | US5117215 Inductive device |
| 04/29/1992 | EP0482064A1 Iron-rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates. |
| 04/16/1992 | WO1992006480A1 Magnetic core |
| 04/01/1992 | EP0477936A2 Method of reducing noise in magnetic core |
| 03/29/1992 | CA2052295A1 Method of reducing noise in magnetic core and magnetic core |
| 03/25/1992 | EP0476094A1 Device for forming laminated strips of amorphous metal |
| 03/18/1992 | CN2099200U Spark coil for petrol engine |
| 03/17/1992 | US5097373 Laminated magnetic core |
| 03/11/1992 | EP0473782A1 Magnetic core |
| 03/04/1992 | EP0473097A2 System for irradiating a surface with atomic and molecular ions using two dimensional magnetic scanning |
| 03/03/1992 | CA1296511C Toroidal transformer and machines and methods for making same |
| 02/26/1992 | EP0471864A1 Coil device |
| 02/25/1992 | US5091253 Alternating concentric rings; annealing in magnetic field |
| 02/19/1992 | CN1015520B Carbide die pressing method and dies for magnetic core of magnetic roller |
| 02/18/1992 | US5089334 Flux spreading thin film magnetic devices |
| 02/11/1992 | US5086554 Method of manufacturing a magnetic core |
| 02/05/1992 | EP0469530A1 Ignition coil assembly directly coupled to ignition plug for internal combustion engine |
| 01/28/1992 | US5083366 Thin ribbon of magnetic iron alloy; heat resistant layer of silica, silanol oligomer and ceramic particles; heat treatment |
| 01/14/1992 | US5080323 Adjusting device for gas exchange valves |
| 12/24/1991 | US5074932 Fine-crystalline iron-based alloy core for an interface transformer |
| 12/24/1991 | US5074687 Armature of an electromagnet-coil/armature system for dot matrix print heads, and method of manufacturing same |
| 12/24/1991 | CA1293539C Magnetic device for high-voltage pulse generating apparatuses |
| 12/18/1991 | EP0461712A1 Transformer having an air gap and an insulation foil packet |
| 12/18/1991 | EP0252141B1 Magnetic circuit device provided with a current coil |
| 12/11/1991 | EP0460760A1 Sintered transformer core of MnZn-ferrite and a transformer comprising such a core |
| 12/11/1991 | EP0460291A2 Magnetic field sensitive apparatus with several magnetic field sensors |
| 12/11/1991 | EP0460218A1 Construction of armature of electromagnetic brake |
| 12/10/1991 | US5072205 Wound magnetic core |
| 12/04/1991 | EP0459570A1 Inductance or transformer, particularly for switching mode current supply device |
| 11/19/1991 | WO1991018404A1 Magnetic cores utilizing metallic glass ribbons and mica paper interlaminar insulation |
| 11/05/1991 | US5063011 Doubly-coated iron particles |
| 11/05/1991 | US5062909 Iron rich metallic glasses having saturation induction and superior soft ferromagnetic properties at high magnetization rates |
| 11/05/1991 | US5062197 Dual-permeability core structure for use in high-frequency magnetic components |
| 10/24/1991 | DE4012810A1 EM remanence drive system esp. for relay - has core of hardened pure, martensitic steel with chemical passivation |
| 10/03/1991 | WO1991015020A1 Magnetic core |
| 09/16/1991 | CA2012333A1 Non-inductive winding for coils in alternating current circuits |
| 09/10/1991 | US5047745 Laminations |
| 09/10/1991 | US5047743 Integrated magnetic element |
| 09/04/1991 | EP0444522A1 Coil device |
| 09/04/1991 | EP0444521A1 Coil device |
| 08/28/1991 | WO1991012960A1 Laminated strips of amorphous metal |
| 08/28/1991 | CA2053300A1 Laminated strips of amorphous metal |
| 08/06/1991 | US5037706 Laminated strips of amorphous metal |
| 07/17/1991 | EP0250445B1 Ignition system for internal combustion engines |
| 07/11/1991 | DE4041895A1 Deflection coil yoke arrangement for television or VDU picture tube - has subcoil attached to flange of main deflection coil former and made of two-part core |
| 06/27/1991 | WO1991009442A1 Magnetic flux return path for an electrical device |
| 06/27/1991 | WO1991009234A1 Construction of armature of electromagnetic brake |
| 06/18/1991 | US5025241 Transformer of ferrite closed magnetic circuit type |
| 06/18/1991 | US5024542 Magnetic actuator |
| 05/29/1991 | EP0428552A1 Control device for a gas shuttle valve |
| 05/23/1991 | DE3938577A1 Permanent magnet transformer generating electrical pulses - uses four-limbed yoke including magnet for three sec. windings |
| 05/02/1991 | WO1991006109A1 Electromagnet |
| 04/18/1991 | DE3933758A1 Elektromagnet Electromagnet |
| 03/20/1991 | CN1050108A Production of amorphous inductor core |
| 02/05/1991 | US4990881 Ignition coil with permanent magnet |
| 01/15/1991 | WO1991001563A1 Iron-rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates |
| 01/08/1991 | US4983943 Magnetic core and method of manufacturing same |
| 01/08/1991 | US4983859 Magnetic device for high-voltage pulse generating apparatuses |
| 12/25/1990 | US4980794 Electromagnetic contactor with lightweight wide range current transducer with sintered powdered metal core |
| 12/20/1990 | DE3919617A1 Servo valve - with temp. compensation for permanent magnet actuator and hydraulic intensifier |
| 12/12/1990 | EP0401805A2 Magnetic core |
| 12/05/1990 | EP0400550A2 Soft magnetic alloy, method for making, magnetic core, magnetic shield and compressed powder core using the same |
| 11/13/1990 | US4970476 Electric noise absorber using a granular or liquid magnetic substance |
| 11/08/1990 | DE3913558A1 Transformer with ferrite windings - has core with primary and secondary coils arranged on common sections in alternate manner |
| 10/31/1990 | DE4013130A1 Ignition coil for vehicle engines - has coil former with projections to fix width of air gap |
| 10/17/1990 | EP0392202A2 Use of a fine crystalline iron-based alloy as a magnet core in an interface transformer |
| 10/16/1990 | US4964013 Electric noise absorber |
| 10/16/1990 | CA1275236C Amorphous alloy thin sheet laminate and a core using said amorphous alloy thin sheet laminate, and processes for producing the same |
| 10/03/1990 | EP0390643A1 Transformer of the closed ferrite magnetic circuit type |
| 09/26/1990 | EP0388930A1 E-I core with an air gap |
| 09/18/1990 | US4958134 Noise suppression device comprising a toroid winding |
| 09/06/1990 | DE3916455A1 Complex shaped components made of individual elements - fixed together with each element having specific properties adapted to its working condition |
| 09/05/1990 | EP0385220A1 Coil device |
| 08/29/1990 | EP0384491A2 Core of a noise filter comprised of an amorphous alloy |
| 08/22/1990 | EP0383064A1 Magnet armature |
| 08/22/1990 | EP0383063A1 Magnet armature |
| 08/22/1990 | CN1044871A Transformers and cores for transformers |
| 08/21/1990 | US4950550 Security systems; soft magnetic alloy core, hard magnetic alloy jacket |
| 08/15/1990 | CN1009231B Improved toroidal transformer and machines and methods for making same |
| 08/09/1990 | DE3901792A1 Toroidal (ring) core made of ferrite or iron powder |
| 08/07/1990 | US4946132 Magnet armature |
| 07/31/1990 | CA1272086A1 Electromagnetically-actuated positioning system |
| 07/31/1990 | CA1272084A1 Electromagnetically-actuated positioning mechanisms |
| 07/25/1990 | EP0378823A2 Use of a magnet core in an interface transformer |
| 07/24/1990 | US4943793 Dual-permeability core structure for use in high-frequency magnetic components |
| 07/10/1990 | CA1271395A1 Annealing of thermally insulated core |
| 07/03/1990 | CA2005429A1 Transformers and cores for transformers |
| 05/31/1990 | DE3839771A1 Switching-network transformer having only one core |
| 05/30/1990 | EP0370666A1 Electromagnetic actuator |
| 05/17/1990 | DE3938177A1 Stossstrom-unterdrueckungsschaltung und magnetische einrichtung darin Surge current-unterdrueckungsschaltung and magnetic device is |