Patents for H01F 7 - Magnets (20,067)
11/2004
11/03/2004EP0897473B1 Disposable ambulatory microprocessor controlled volumetric pump
11/03/2004CN2653653Y Double stable solenoid electromagnetic iron
11/03/2004CN1543388A Magnetic clamping device and method for detecting and controlling an operating state of a magnetic clamping device
11/03/2004CN1542874A Semilunar or fan shaped rare earth ferrum permanent magnetic field orientation and making method thereof
11/03/2004CN1542577A Electric operating device of control component and method for operating control component
11/02/2004US6812055 MEMS devices and methods of manufacture
11/02/2004US6811718 Ferrite type magnet manufacturing method
10/2004
10/28/2004WO2004093299A1 Electromagnetic energy converter
10/28/2004WO2004078638A3 Micro-electromechanical inductive switch
10/28/2004US20040212944 Solenoid drive apparatus
10/28/2004US20040212473 Electromagnetic coil assembly and electromagnetic actuator
10/28/2004US20040212471 Electromagnetic clamp and method for clamping a structure
10/28/2004US20040212469 Rotary solenoid
10/28/2004DE10315282A1 Schaltungsanordnung und Verfahren zur Ansteuerung eines bistabilen Magnetventils Circuit arrangement and method for driving a bistable solenoid valve
10/28/2004DE10302988B3 Schaltungsvorrichtung zur Erzeugung eines durch eine Magnetspulenanordnung fließenden, durch Taktung geregelten Spulenstroms Circuit means for generating a current flowing through a solenoid arrangement, controlled by clocking the coil current
10/27/2004CN1540842A Magnetic shoe made from permanent magnetism ferrite and producing method
10/26/2004US6809619 System and method for adjusting magnetic center field for permanent MRI magnetic field generator
10/26/2004US6808160 Solenoid valve
10/26/2004CA2210174C Magnet sheet for display
10/21/2004US20040206320 Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator
10/21/2004US20040206318 Electromechanical valve actuator for internal combustion engines and internal combustion engine equipped with such an actuator
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
10/21/2004DE10235644B4 Elektromagnetische Stellvorrichtung Electromagnetic actuator
10/21/2004DE102004014469A1 Steuerventilvorrichtung für einen verstellbaren Taumelscheibenkompressor Control valve device for an adjustable swash plate compressor
10/21/2004DE102004012526A1 Steuerventil für ein Fahrzeugbremssystem A control valve for a vehicle braking system
10/21/2004DE102004005770A1 Betriebsschaltung und die Betriebsschaltung verwendende Leistungsschaltvorrichtung Operating circuit and the operating circuit switching power device used
10/20/2004EP1469700A2 A coil for an electroacoustic transducer
10/20/2004EP1468432A1 Linear voice coil actuator with planar coils
10/20/2004EP1417404B1 High-speed controlling device
10/20/2004CN1538603A Electromagnetic driver and exposure reglation component using it
10/20/2004CN1538479A Alternating current electro magnet device of actuating maintaining static conversion
10/19/2004US6806802 Electromagnetic driving device and flow rate controlling apparatus employing the same driving device
10/19/2004US6806596 Armature for an electromagnetic actuator with a sintered armature plate
10/14/2004US20040201943 Operation circuit and power switching device employing the operation circuit
10/14/2004US20040201441 Electromagnetic regulating device
10/14/2004US20040201300 Motor and its permanent magnet
10/14/2004US20040201290 Electromagnetic power device
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
10/14/2004DE10315585A1 Operating method for electromagnetic actuator, e.g. for gas exchange valve of motor vehicle, by chopping coil current to pre-current value during first phase, and chopping with constant duty ration during second phase
10/14/2004DE10315584A1 Operating method for electromagnetic actuator e.g. for gas exchange valve of internal combustion engine, by comparing actual current with reference value and regulating current accordingly
10/14/2004DE10315152A1 Controlling electromagnetic valve, especially for motor vehicle automatic gearbox, involves varying pulse width modulated drive signal periodic duration depending on drive signal switch-on component
10/14/2004DE10109378B4 Elektromagnetanordnung für elektromagnetisches Gerät Solenoid assembly for electromagnetic device
10/13/2004EP1075615B1 Electromagnetic valve for gaseous fluids
10/13/2004CN2648061Y Back-flushing electricity saving apparatus for extracting oil machine of oil well
10/13/2004CN1536589A Electromagnetic coil of DC electromagnetic block brake
10/13/2004CN1535656A Method and device for positioning permanent magnetic block
10/12/2004US6803686 Electromechanical actuator
10/12/2004US6802986 Low-aberration deflectors for use in charged-particle-beam optical systems, and methods for fabricating such deflectors
10/07/2004WO2004085866A1 Structure and method of mounting built-in type of discharge element part
10/07/2004US20040196127 Variable field magnet apparatus
10/07/2004US20040196092 Electromagnetic load drive apparatus
10/07/2004US20040195071 Pulse width modulation of brake shift interlock solenoid
10/07/2004US20040194289 Methods and apparatus for positioning permanent magnetic blocks
10/07/2004DE10207828B4 Elektromagnetischer Hubmagnet An electromagnetic solenoid
10/06/2004EP1465216A1 Methods and apparatus for positioning permanent magnetic blocks
10/06/2004CN2645622Y Magnetic controlled needle seeking equipment
10/06/2004CN1535355A Solenoid drive apparatus
10/06/2004CN1533841A Permanent magnet magnetic system of drum type magnetic separator
10/06/2004CN1170294C Electromagnetic control equipment for power supply circuit with current supply kept by eletromagnet
10/05/2004US6800966 Linear brushless DC motor with ironless armature assembly
10/05/2004US6799746 Electromagnet, in particular a proportional magnet for operating a hydraulic valve
09/2004
09/30/2004WO2004083625A1 Electromagnet for an electromagnetic valve
09/30/2004US20040193031 Method and apparatus for non-invasive analysis of blood glucose
09/30/2004US20040191077 Control valve device for variable capacity type swash plate compressor
09/30/2004US20040189123 Magnetically hard object and method for adjusting the direction and position of a magnetic vector
09/30/2004US20040189105 Fixation framework for ring-shaped permanent magnet
09/30/2004DE3939537B4 Magnetventil Solenoid valve
09/30/2004DE10311523A1 Elektromagnet, insbesondere für ein Magnetventil Electromagnet, in particular for a solenoid valve
09/30/2004DE102004010394A1 Strom-Controller für induktive Last Current controller for inductive load
09/29/2004EP1463186A1 Linear actuator
09/29/2004EP1461813A1 Improvements relating to operation of a current controller
09/29/2004CN2645189Y Single magnetic circuit single coil permanent-magnet solenoid
09/29/2004CN1533023A Controller for inductive load current
09/29/2004CN1533012A Fixing structure for circular permanent magnet
09/29/2004CN1532865A Operation circuit and electric power switch device using it
09/29/2004CN1532855A Field energy utilizing technology
09/29/2004CN1169168C Electromagnetic valve D.C. electromagnetic coil for A.C. power supply
09/29/2004CN1169167C Magnetic fixing fitting
09/28/2004US6798636 Method of estimating the effect of the parasitic currents in an electromagnetic actuator for the control of an engine valve
09/28/2004US6798635 Method and arrangement for determining the position of an electromagnetic actuator
09/28/2004US6798634 Device for actuating an electromagnet
09/28/2004US6796718 Electromagnetic linear optical positioner
09/23/2004WO2004082106A1 Torque producing device
09/23/2004WO2002091403A3 Solenoid valve coil having an integrated bobbin and flux ring assembly
09/23/2004US20040185305 Super conductive magnet apparatus
09/23/2004US20040183650 Magnet coil arrangement
09/23/2004US20040183636 Permanent Magnet and shim design
09/23/2004US20040183382 Mobile magnet actuator
09/23/2004DE19924767B4 Elektromagnetisches Stellglied An electromagnetic actuator
09/23/2004DE10310963A1 Coil construction for electromagnetic actuator for operation of IC engine valve, has measuring coil for measuring flux variations provided by actuator coil
09/22/2004EP1226347B1 Control of driver current via low side gates
09/22/2004CN1530514A Steering system of trackless electric telescopic door
09/21/2004US6794973 Magnetic field generating device for MRI
09/21/2004US6794972 Brake-transmission shift interlock device for an automatic transmission system
09/21/2004US6794965 Micro-magnetic latching switch with relaxed permanent magnet alignment requirements
09/16/2004WO2004078638A2 Micro-electromechanical inductive switch
09/16/2004WO2003060932A8 Method for controlling flux of electromagnet and an electromagnet for carrying out said method (variants)
09/16/2004US20040181760 Systems and methods for operating an electromagnetic actuator
09/16/2004US20040178782 Current controller for inductive load
09/16/2004US20040178378 Control valve for a vehicular brake system