Patents
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
09/2004
09/28/2004US6798104 Rotary electric machine for electric vehicle
09/28/2004US6798097 Stator cooling
09/28/2004US6796198 Driving assembly for controllably driving a slide
09/28/2004CA2424311A1 The right angle armature
09/28/2004CA2136216C Super high speed brushless dc motor
09/23/2004WO2004073143B1 Electric machine having an axial air gap
09/23/2004US20040184188 Hydrodynamic bearing and disk recording/reproducing apparatus
09/23/2004DE10310777A1 Electrical machine for direct drive of cable winch disc for elevator has coaxial pairs of electrical winding layers and cooperating permanent magnet layers
09/22/2004EP1459435A2 Synchronous alternating current generator incorporating a braking mechansim
09/22/2004EP1459426A2 Synchronous axial field electrical machine
09/22/2004EP1459425A2 Electric synchronous machine comprising a toroidal winding
09/22/2004EP1230725A4 Polyphase transverse flux motor
09/22/2004CN1168195C Synchronous AC motor and control method thereof
09/22/2004CN1168190C Main shaft motor
09/21/2004US6794790 Rotary electric machine
09/21/2004US6794789 Miniature motor
09/21/2004US6794786 Electric motor
09/21/2004US6794784 Permanent magnet reluctance motor with embedded permanent magnet holes
09/21/2004US6794783 Flat rotary electric generator
09/21/2004US6794774 Spindle motor
09/21/2004US6793167 Food processing apparatus including magnetic drive
09/16/2004WO2004058448A3 Drive unit
09/16/2004WO2004047283A3 Bldc motor for washing machine
09/16/2004US20040178757 Multiphase motors with single point sensing based commutation
09/16/2004US20040178696 Vehicle alternator and its rotor
09/16/2004DE10309656A1 Magnetic conductive plate for single pole plate brushless DC motor, has pole plate made of single magnetic conductive sheet regarded as base plate to combine with coil to form stator, multiple pole faces punched by sheet
09/16/2004DE10309077A1 Electric motor for motor-gear combination e.g. for motor-vehicle windshield wipers or window drives, has rotor designed as hollow shaft for accommodating gear assembly
09/15/2004EP1458081A2 Electric motor of the permanent-magnet type
09/15/2004EP1458080A1 Permanent magnet type dynamo-electric machine and wind power generation-use permanent magnet type synchronous generator
09/15/2004EP1456842A1 Spindle motor for hard disk drives with axial fixing of the bearing system
09/15/2004CN2641905Y Direct current refrigerating compressor
09/15/2004CN2641899Y Integrated motor generator
09/14/2004US6791225 Flywheel magneto generator
09/14/2004US6791222 Rotary electric motor having at least two axially air gaps separating stator and rotor segments
09/14/2004US6789320 Surface openings in said bearing surface are substantially uniform in size; ensured by conducting rotary sizing
09/09/2004US20040174085 Electric machine for high magnetic reversal frequencies
09/09/2004US20040174084 Permanent magnet rotating electric machine and electrically driven vehicle employing same
09/09/2004US20040174083 Single phase induction motor
09/09/2004US20040174082 Multiple concentric coil motor
09/09/2004US20040174078 Spindle motor for hard disk drives having a hydrodynamic bearing arrangement
09/08/2004EP1455435A2 Single phase induction motor further comprising a permanent magnetic unit
09/08/2004EP1454403A2 Apparatus and process for generating energy
09/08/2004CN2640117Y Multi-output permanent-magnet generator
09/08/2004CN2640111Y 发电装置 Power plant
09/08/2004CN1527466A 单相感应电动机 Single-phase induction motor
09/08/2004CN1527458A Three-phase electric machine and electric device and vehicle mounted with the same electric machine
09/07/2004US6787965 Single magnetic conductive plate structure for forming a single pole plate brushless dc motor
09/07/2004US6787964 Miniature motor structure
09/07/2004US6787951 Rotary electric motor having controller and power supply integrated therein
09/02/2004WO2004075379A1 Axial gap rotaitng electric machine
09/02/2004WO2004075378A1 Interior permanent magnet synchronous machine
09/02/2004WO2004075376A2 Stator for axial flux electric motor
09/02/2004US20040169481 Engine operated machine
09/02/2004US20040169431 Permanent magnet synchronous motor
09/02/2004DE19800570B4 Gebläse mit einem Lüfterrad Fan with a fan wheel
09/01/2004EP1453178A1 Electrical Machine
09/01/2004EP1451467A2 Synchronous machine design and manufacturing
09/01/2004CN2638323Y Combined rotor rare earth permanent-magnetic synchronous motor
09/01/2004CN2638322Y A.C. motor for brushless full permanent magnetic vehicle
09/01/2004CN1525629A Construction of power assisting synchronous motor
09/01/2004CN1165104C Permanent magnet inserted induction motor
08/2004
08/31/2004US6784586 Hybrid alternator with an axial end retainer for permanent magnets
08/31/2004US6784575 Air-cooled outer rotor type motor/generator contained within a crank pulley of an engine
08/26/2004WO2004073365A2 Conductor optimized axial field rotary energy device
08/26/2004WO2004073158A1 Software-based adaptive control system for electric motors and generators
08/26/2004WO2004073155A1 In-wheel electric motor system
08/26/2004WO2004073146A1 Electronically commutated single-phase motor
08/26/2004WO2004073143A1 Electric machine having an axial air gap
08/26/2004US20040165797 Hydrodynamic bearing, spindle motor using the same and disc drive apparatus provided with spindle motor
08/26/2004US20040164641 Axial gap electronic motor
08/26/2004US20040164635 Magnetic field type of rotary electric apparatus
08/26/2004US20040164628 Magneto generator
08/26/2004DE20314652U1 Electric motor with axial magnetic flux for e.g. pumps, fans, toys and centrifuges, has stator yoke made from connected sections with phase windings between poles
08/26/2004CA2514453A1 Electronically commutated single-phase motor
08/25/2004EP1450470A1 Interior permanent magnet synchronous machine
08/25/2004EP1450467A1 Synchronous electric motor with a pulley and method for manufacturing the motor
08/25/2004EP1450463A1 Stator structure of highspeed motor
08/25/2004EP1450462A1 Rotor and stator for an electrical machine with reduced cogging torque
08/25/2004CN2636486Y Electric generator suitable for large scale changing of rotating speed
08/25/2004CN1524332A Improved electric motor
08/25/2004CN1524331A Design for frameless cartridge motors
08/25/2004CN1523733A Point-divided full-voltage generation technology adapted to large range changes of rotating speed
08/24/2004US6781772 Driving apparatus, light-amount regulating apparatus, and lens driving apparatus
08/24/2004US6781277 Micro-motor with low cogging torque
08/24/2004US6781276 Generator for a windmill, stator module for use in such a generator and use of such a generator
08/24/2004US6781274 Rotor for synchronous motor and method of manufacturing the same
08/24/2004US6781263 Magneto-generator
08/19/2004WO2004070922A1 Claw-pole type generator
08/19/2004WO2004070921A1 Polyphase motor with optimised running characteristics
08/19/2004WO2004070914A2 Dynamoelectric machine having windings that differ in wire gauge and number of winding turns
08/19/2004US20040160139 Permanent magnet motor for driving a fan
08/19/2004US20040160137 Motor
08/19/2004US20040160135 Single magnetic conductive plate structure for forming a single pole plate brushless dc motor
08/19/2004US20040159115 Apparatus for driving a compressor and a refrigerating air conditioner
08/19/2004DE10303848A1 Drehstrommaschine mit optimierten Laufeigenschaften Three-phase machine with optimized operating characteristics
08/18/2004EP1447901A2 Magnetic field type of rotary electric apparatus
08/18/2004EP1446858A2 Rotary electric motor having separate control modules for respective stator electromagnets
08/18/2004EP1064712B1 Multi-phase transverse flux machine
08/18/2004CN1521922A Electromagnetic speed-reducing wheel hub motor
08/18/2004CN1162951C Iron core of electric machine, and electric machine using said iron core