Patents for H01F 7 - Magnets (20,067)
04/1998
04/22/1998EP0837479A2 Driver circuit for electromagnet
04/22/1998CN2279474Y Automatic driving apparatus for simple pendulum motion
04/22/1998CN1038110C Acupoint magnetotherapy special-shape magnet (magnetic piece)
04/21/1998US5742467 Method of controlling armature movement in an electromagnetic circuit
04/21/1998US5742106 Thermo-sensitive actuator and idle speed controller employing the same
04/21/1998CA2088038C Electromagnetic pickup tool
04/15/1998EP0836202A2 Rotary solenoid
04/15/1998EP0835515A1 Electromagnetic actuator arrangement for engine control valve
04/15/1998EP0835514A1 Bobbin-mounted soleonoid coil and method of making
04/15/1998EP0835378A1 Fuel injection apparatus
04/15/1998EP0694203B1 Electric motor, methods for controlling and assembling same
04/14/1998US5740509 Magnet roller and developing device
04/14/1998US5739599 Electromagnetic actuator
04/09/1998WO1998014963A1 Apparatus and method for material treatment using a magnetic field
04/09/1998DE19641244A1 Adjusting electromagnetic actuator e.g. for IC engine gas-exchange valves
04/09/1998DE19640659A1 Electromagnetic actuator with coil current control during armature movement e.g. for IC engine gas-exchange valves
04/08/1998EP0834978A1 Bobbin for electromagnet of electromagnetic clutch
04/08/1998EP0834889A2 Stator component
04/08/1998EP0834888A1 Electromagnet in which a coil member is inclined in an annular groove of a core
04/08/1998EP0734578B1 Solenoid
04/07/1998CA2009342C Magnetic field transfer device and method
04/02/1998WO1998013837A1 Fuel injection valve
03/1998
03/31/1998US5734320 Emergency warning gear having a multitude of functions
03/31/1998US5734310 Magnetic latching solenoid assembly
03/31/1998US5734309 Energy-saving electromagnetic switching arrangement
03/31/1998US5732938 Actuation apparatus
03/31/1998CA2123319C Electromagnetically actuated valve
03/26/1998DE19639117A1 Brennstoffeinspritzventil Fuel injection valve
03/25/1998EP0831221A2 Drive circuit
03/25/1998CN1177073A Electro-magnetically operated valve
03/24/1998US5731946 Parallel circuit for driving an electromagnetic load
03/24/1998US5731705 Electromagnetic lifting device
03/24/1998CA2127989C Ferromagnetic wire electromagnetic actuator
03/24/1998CA2109700C Electromagnetic actuator
03/19/1998WO1998011649A1 Electromechanical device, coil configuration for the electromechanical device, and infor- mation storage and/or reproduction apparatus including such a device
03/18/1998EP0829960A2 Improvements in or relating to electronic filters
03/18/1998EP0829887A2 Magnetic actuator with long travel in one direction
03/18/1998EP0829639A2 Exhaust gas recirculation valve
03/18/1998EP0828656A1 Electro-magnetic expulsion de-icing system
03/18/1998EP0616670B1 Electromagnetically actuated valve
03/18/1998CN1176470A Process for producting permanent magnets and products thereof
03/17/1998US5729422 Device and method for triggering an electromagnetic consumer
03/17/1998US5729188 Homogeneous field magnet with at least one pole plate to be mechanically aligned
03/17/1998US5729187 Electromagnetic holding device
03/12/1998WO1998010441A1 Magnet fixing member
03/12/1998DE19702567A1 Permanent magnet magnetic resonance device
03/12/1998CA2189408A1 Magnetic actuator with long travel in one direction
03/11/1998EP0828263A1 Magnetic structure having a partial yoke and a magnetic shunt
03/11/1998CN1175779A Control power supply for constant force starting electric magnet
03/10/1998US5724820 Permanent magnet system based on high-temperature superconductors with recooling and recharging capabilities
03/10/1998CA2101662C Permanent magnet brushless torque actuator
03/05/1998WO1998009302A1 Quiet ferrofluid solenoid
03/05/1998DE19738148A1 Pulsbreitenmodulationstreiber mit Spitzenstromsteuerung Pulse width modulation driver with peak current control
03/04/1998EP0827279A2 Circuit for switching multiple parallel switching devices with inductive loads independently of each other
03/04/1998EP0827162A1 Electromagnet with immersed core used for instance in a remote control interrupter
03/04/1998EP0826979A1 Method and apparatus for compensation of field distortion in a magnetic structure
03/04/1998EP0826101A1 Fuel system
03/04/1998CN2275755Y Energy-saving electromagnet controller
03/04/1998CN1175066A Method for producing permanent magnet and products
03/03/1998US5724015 Bulk micromachined inductive transducers on silicon
03/03/1998US5723978 Photo-inducible magnetic exchange coupling device
02/1998
02/26/1998WO1998007603A1 Solenoid coil structure and interconnection
02/25/1998EP0825622A1 Magnetic field generation
02/25/1998EP0704064B1 Magnetic screen
02/24/1998US5720468 Staggered electromagnetically actuated valve design
02/17/1998US5719543 Magnetically powered linear displacement apparatus
02/17/1998US5719469 Spherical magnet having a gap with a periodically varying field for a wiggler radiation source
02/17/1998US5719431 Integrated driver circuit configuration for an inductive load element
02/11/1998EP0823017A1 Process for driving the exciting coil of an electromagnetically driven reciprocating piston pump
02/11/1998CN2274369Y AC electromagnet
02/10/1998US5717562 Solenoid injector driver circuit
02/10/1998US5717372 Dual armature solenoid
02/10/1998US5717333 Magnet arrangement for a diagnostic magnetic resonance apparatus
02/05/1998DE19630779A1 Double linear solenoid actuator e.g. for locking device in motor vehicle automatic transmission selector lever device
02/04/1998CN2273891Y Practive electromagnet
02/04/1998CN2273890Y Cubic floating magnet adhesive cloth
02/04/1998CN1172332A Granular membrane huge magnetic resistance effect sensor material
01/1998
01/29/1998WO1998003901A1 Current control apparatus
01/29/1998WO1998003789A1 Solenoid valve such as an impact solenoid valve for a hammer-effect fuel injection system in a motor vehicle
01/29/1998DE19728221A1 High speed operation method of electromagnetic load
01/28/1998EP0821176A1 Electromagnetic coupling device
01/28/1998CN2273452Y Intelligent non-power dissipation engaging & disengaging mechanism
01/27/1998US5711259 Method of measuring a valve play of an engine-cylinder valve operated by an electromagnetic actuator
01/20/1998US5710745 For use in a magnetomotive generator
01/20/1998US5710535 Coil assembly for a solenoid valve
01/20/1998US5710532 Solenoid with movement dampener
01/20/1998US5710401 Volumetric pump/valve
01/15/1998DE19627925A1 Bistable solenoid valve internal locking actuating device e.g. for washing machines, automobile engineering, space technology etc
01/14/1998EP0752941B1 Electro-hydraulic pressure regulating device, especially for a controlled-slip vehicle brake system
01/14/1998EP0664861B1 Expansion valve for air conditioning system with proportional solenoid
01/14/1998CN1170212A Permanent magnet assembly for iron separator and process method
01/14/1998CN1170097A Electromagnetic clutch
01/13/1998US5708406 Rotary actuator
01/13/1998US5708362 Magnet arrangement for a diagnostic magnetic resonance apparatus
01/13/1998US5708355 Method of identifying the impact of an armature onto an electromagnet on an electromagnetic switching arrangement
01/13/1998US5706575 Method of making eddy current-less pole tips for MRI magnets
01/08/1998WO1998000637A1 Inductive load driving device and driving method
01/07/1998EP0817211A1 Superconducting magnet device and magnetic resonance imaging device using the same
01/07/1998EP0816671A1 An electro-magnetically operated valve
01/07/1998EP0816644A2 A valve driving apparatus using an electromagnetic coil to move a valve body with reduced noise