Patents for H01F 3 - Cores, yokes or armatures (3,764)
01/2005
01/19/2005EP1498914A1 Power inductor with reduced DC current saturation
01/18/2005US6844802 Parallel core electromagnetic device
01/13/2005US20050007281 Surface-mounted antenna apparatus
01/13/2005US20050007232 Magnetic core and coil component using the same
01/11/2005US6842099 Rod coil for ignition systems
01/11/2005US6841908 Stator core for a magnetic bearing and the method of manufacturing it
01/06/2005WO2005001853A2 Method and apparatus for cooling magnetic circuit elements
01/06/2005WO2004070739A3 Gapped amorphous metal-based magnetic core
01/06/2005US20050001707 Gapped core structure for magnetic components
01/05/2005EP1494259A2 Choke coil for a magnetron, and magnetron comprising such coil.
01/04/2005US6838966 Circular pole piece and MRI system
12/2004
12/30/2004US20040266303 Multilayer; glass fiber bonded with binder; controlling particle sizes; smooth surfaces, durability
12/30/2004US20040264521 Method and apparatus for cooling magnetic circuit elements
12/30/2004US20040262304 Magnetron
12/29/2004WO2004114499A2 Parallel core electromagnetic device
12/29/2004EP1490882A1 Low profile high current multiple gap inductor assembly
12/28/2004US6834644 Circular ignition coil assembly
12/23/2004WO2004112012A2 Optical pick-up actuator and method for assembling an optical pick-up actuator
12/23/2004US20040257187 Parallel core electromagnetic device
12/22/2004EP1489683A1 Antenna coil
12/22/2004EP1489635A2 High efficiency core antenna and construction method
12/22/2004CN1556534A Square inkslab type magnetic core
12/22/2004CN1181504C Magnetic path
12/16/2004WO2004109891A2 Product and method for making a three dimensional amorphous metal mass
12/16/2004WO2004109724A1 Soft-metal electromechanical component and method making same
12/16/2004WO2004109723A1 Inverter trasformer
12/16/2004WO2004109722A1 Inverter trasformer
12/16/2004WO2003096512A8 Contact-less power transfer
12/16/2004US20040253465 coating a lamination of layered steel parts; vacuum impregnated with an acrylic resin having a high permeability that fills the gaps between the layers; curing; then insulation coating using anion electrodeposition; stator; saltwater protection
12/16/2004US20040251745 Power switching system
12/16/2004US20040250953 Product and method for making a three dimensional amorphous metal mass
12/16/2004US20040250940 Soft-metal electromechanical component and method making same
12/16/2004US20040250408 Soft magnetic amorphous electromechanical component and method making the same
12/15/2004EP1487092A1 Power switching system
12/15/2004EP1486994A1 Composite core nonlinear reactor and induction power receiving circuit
12/15/2004EP1486993A1 Coil component and fabrication method of the same
12/15/2004EP1486991A1 Magnetic core and coil component using the same
12/15/2004CN1555464A 电磁制动器 Electromagnetic Brakes
12/14/2004US6831388 Synchronous compensator plant
12/14/2004US6831385 Stator core for a magnetic bearing
12/08/2004EP1483941A2 Magnetron drive boosting transformer
12/08/2004EP1019927B1 Method for increasing the operating frequency of a magnetic circuit and corresponding magnetic circuit
12/08/2004CN1179372C Powder for dust core and dust core
12/02/2004US20040239464 Magnetron drive boosting transformer
11/2004
11/30/2004US6825668 Static magnetic field generating apparatus and magnetic resonance imaging apparatus
11/25/2004US20040233030 Transformer
11/25/2004CA2525064A1 High purity electrolytic sulfonic acid solutions
11/23/2004US6822363 Electromagnetic device
11/18/2004US20040227606 Stacked cores and the heat dissipation method for the same
11/18/2004US20040227473 Non-reciprocal circuit element for adjusting magnetic flux density by a gap between two yokes and method for manufacturing the same
11/18/2004DE19908374B4 Teilchenverbundwerkstoff aus einer thermoplastischen Kunststoffmatrix mit eingelagertem weichmagnetischen Material, Verfahren zur Herstellung eines solchen Verbundkörpers, sowie dessen Verwendung Particle composite of a thermoplastic resin matrix with embedded soft magnetic material, process for producing such a composite body, and the use thereof
11/17/2004EP1477996A1 Three phase choke coil with reduced emission of electromagnetic energy in the environment
11/17/2004EP1477995A1 Method for controlling flux of electromagnet and an electromagnet for carrying out said method (variants)
11/11/2004WO2004097862A2 Selective etching process for cutting amorphous metal shapes and components made thereof
11/10/2004EP1475808A1 Powder magnetic core and high frequency reactor using the same
11/10/2004CN2655397Y Tattooing apparatus core with U-shape iron core
11/10/2004CN1545711A Method for manufacturing coil device
11/09/2004US6816054 Silicon steel core for transformers or choke coils
11/04/2004US20040217841 Device for energy storage and energy transformation
10/2004
10/28/2004US20040212269 Selective etching process for cutting amorphous metal shapes and components made thereof
10/26/2004US6809620 Transformer core
10/26/2004US6808807 Coated ferromagnetic particles and composite magnetic articles thereof
10/21/2004US20040207503 Self-damped inductor
10/21/2004US20040207500 Magnetic core including magnet for magnetic bias and inductor component using the same
10/21/2004DE10302064A1 South-pole face shaping for field coil core e.g. of automobile generator, has face filled out sufficiently for guaranteed electron yield even in winding phase/conductor
10/14/2004DE10359640B3 Electromagnet device for electrical switchgear or magnetic drive has magnetic yoke and/or armature of drive coil provided with impact-resistant coating
10/07/2004US20040196131 Inverter transformer and core structure thereof
10/06/2004EP1464062A1 Coupling device
10/06/2004CN1534696A Inductive apparatus
09/2004
09/30/2004WO2004083465A1 Grain-oriented magnetic steel sheet excellent in magnetic characteristic and its manufacturing method
09/30/2004US20040189433 Inductance device
09/30/2004DE20122191U1 Choke and transformer device has cooling gap for carrying heat from inner region of choke and transformer to outside region
09/29/2004EP1463069A2 Inductance device
09/29/2004CN1533681A Boosting transformer for driving magnetron
09/28/2004US6798107 Rotating electric machines with magnetic circuit for high voltage and method for manufacturing the same
09/23/2004US20040183644 Cores and core laminations for electromagnetic devices
09/21/2004US6792666 Three-phase transformer
09/16/2004WO2003060932A8 Method for controlling flux of electromagnet and an electromagnet for carrying out said method (variants)
09/16/2004US20040178877 Silicon steel core for transformers or choke coils
09/16/2004DE10308077A1 Vorrichtung zur Energiespeicherung und Energietransformierung Apparatus for energy storage and energy transformation
09/14/2004US6791447 Configuration for producing electrical power from a magnetic field
09/14/2004US6791446 Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap
09/09/2004US20040172806 Method for manufacturing coil device
09/08/2004EP1454096A1 Electronic ignition circuit for oil burners
09/08/2004CN1166048C Ultrahigh-power DC converter
09/02/2004US20040169989 Electro magnetically-operated device, and a method of operating the same
09/02/2004US20040168303 Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same
09/02/2004DE10327209B3 Switching arrangement, especially for actuating valves, has anti-stick device with axial connecting part enclosing actuating part with defined radial separation and engaging opening in pole core
09/01/2004EP1163687B1 Electromagnet
09/01/2004CN1164709C Insulating adhesive for preparing metal magnetic powder core
08/2004
08/31/2004US6784781 Reactor and ballast system
08/31/2004US6784588 Low core loss amorphous metal magnetic components for electric motors
08/26/2004US20040166012 Component having various magnetic characteristics and qualities and method of making
08/19/2004WO2004070740A2 Low core loss amorphous metal magnetic components for electric motors
08/19/2004WO2004070739A2 Gapped amorphous metal-based magnetic core
08/19/2004US20040160297 Circular pole piece and MRI system
08/18/2004EP1447676A2 Circular pole piece and mri system
08/18/2004EP1446862A1 Motionless electromagnetic generator
08/18/2004CN1162879C Laminated inductor
08/17/2004US6778056 Inductance component having a permanent magnet in the vicinity of a magnetic gap
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