Patents
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
12/2002
12/03/2002US6489696 Motor having rotor formed by using thermosetting resin
12/03/2002US6489694 Ferrofluidic, electrical power generator
12/03/2002US6488486 Indirect cooling of an electric fan
11/2002
11/28/2002WO2002095904A1 Magnetic levitation motor
11/28/2002WO2002095903A1 Brushless dc drive
11/28/2002US20020175588 Axial gap electrical machine
11/28/2002US20020175587 Electrical machine
11/28/2002US20020175585 Motor
11/28/2002US20020175584 Permanent magnet type rotating electrical machine
11/28/2002US20020175583 Permanent magnet type rotating electrical machine and air conditioner using it
11/28/2002US20020175582 Electric drive
11/28/2002US20020175580 Motor utilizing basic factor and having generator function
11/28/2002US20020175572 Skeleton type brushless motor
11/28/2002DE10124436A1 Brushless d.c. drive e.g. for power steering in vehicle, has field stimulation winding in rotor supplied with current in event of fault to produce magnetic flux opposed to that of rotor's permanent magnet poles
11/28/2002DE10124415A1 Elektrische Maschine Electric machine
11/27/2002EP1261104A2 Permanent magnet type rotating electrical machine
11/27/2002EP1261103A1 Brushless dc motor
11/27/2002EP1261102A2 Electrical machine
11/27/2002EP1261101A2 Horseshoe type brushless motor
11/27/2002EP1261100A1 Power generator, electronic apparatus comprising it, and method for setting plate thickness of magnetic circuit in electronically controlled timepiece, and in power generator
11/27/2002EP1153472A4 Permanent magnet d.c. motor having a radially-disposed working flux gap
11/27/2002CN1381936A Directly driven brushless permanent-magnet motor with external rotor for washer
11/26/2002US6486581 Interior permanent magnet synchronous motor
11/26/2002US6486579 Electromagnetic vibrator and portable device employing the same
11/21/2002WO2002093720A1 Universal motor/generator/alternator apparatus
11/21/2002WO2002093713A2 Brushless motor
11/21/2002US20020172599 Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor
11/21/2002US20020171324 Axial field electric machine
11/21/2002US20020171316 Micro-motor with low cogging torque
11/21/2002US20020171315 Unipolar transversel flux machine
11/21/2002US20020171311 Brushless motor
11/21/2002US20020171308 Brushless DC motor
11/21/2002US20020171306 Brushless motor
11/21/2002US20020171305 Electric machine having an outer rotor
11/21/2002US20020171302 Spindle motor and bearing assembly
11/21/2002DE10152722A1 Magnetgenerator, Verfahren zur Herstellung desselben und Harzgussformanordnung zur Herstellung desselben Magnet generator, method for producing the same and the same resin molding mold assembly for making
11/21/2002DE10121907A1 Multiple shaft motor e.g. for vehicle ventilation system, has suitably mutually inclined rotation axes of at least 2 permanent magnet rotors and/or planes to which rotation axes are each inclined and that contain stator parts
11/21/2002DE10110719A1 Electrical machine with transverse magnetic circuit has first part with ferromagnetic magnetic circuit elements, second part with rows of stimulation centers, and armature winding coils
11/20/2002CN1381086A Electric motor utilizing conveygence of magnetic flux
11/20/2002CN1380735A Brake
11/19/2002US6483214 Spindle motor for driving hard disk drives with sealing contacting system for the stator winding terminal
11/14/2002WO2002078153A8 Low profile motor with internal gear train
11/14/2002WO2002060740A3 Electric power steering system including a permanent magnet motor
11/14/2002US20020167242 Fractional-slot winding motor
11/14/2002DE10119642A1 Stator für eine elektrische Drehfeldmaschine, insbesondere Synchronmaschine Stator for an electrical induction machine, particularly synchronous machine
11/13/2002EP1257042A2 Magnetically levitated motor
11/13/2002EP1257040A2 Fractional-slot winding motor
11/13/2002EP1257038A1 Compressor
11/13/2002EP0998781B1 Claw pole motor
11/13/2002CN2520608Y Flying wheel single-phase one-way permanent-magnet AC generator
11/13/2002CN1379528A Permanent magnet rotay electric machine and power generating system and driving system using permanent magnet rotary electric machine
11/12/2002US6479957 Integral motor and control
11/12/2002US6479914 Vibration motor having an eccentric weight and device including the same motor
11/12/2002US6477869 Drive apparatus for a washing machine
11/07/2002WO2002089301A1 Core and magnet structure for electric generators
11/07/2002WO2002089292A2 A toroidal electrical machine and an annular winding carrier therefor
11/07/2002WO2002089291A2 Electric synchronous machine comprising a toroidal winding
11/07/2002WO2002061918A3 Line start permanent magnet motor
11/07/2002US20020163278 Rotary electric machine having a stator made up of sectors assembled together
11/07/2002US20020163268 Motor
11/07/2002US20020163260 Vehicle alternator having rectifier circuit using diode and FET
11/07/2002DE10155918A1 Elektrische Synchronmaschine A synchronous electrical machine
11/06/2002CN1378716A 压缩机 Compressor
11/06/2002CN1378327A Low rotary speed off-net wind-driven generator
11/05/2002US6476534 Permanent magnet phase-control motor
11/05/2002US6476528 Spindle motor rotor, index signal output device, and floppy disk drive having the same
11/05/2002US6475940 Zirconium oxide sintered body
11/05/2002US6474959 Liquid pump, in particular, detergent liquid pump for household appliances, and method for assembling it
11/05/2002CA2255958C Interlocking segmented coil array
10/2002
10/31/2002WO2002087056A2 Stator for an electrical induction machine, especially a synchronous machine
10/31/2002WO2002086324A2 Multi-stage centrifugal compressor
10/31/2002WO2002071582A8 Electrical machine with transverse magnetic circuit
10/31/2002WO2001056139A9 An electric motor
10/31/2002US20020158545 Permanent-magnet electric motor for circulation pumps of heating systems
10/31/2002US20020158543 Electric motor with external rotor
10/31/2002US20020158534 Method of manufacturing rare earth thick film magnet, motor and actuator comprising rare earth thick film magnet manufactured by the manufacturing method, and method of manufacturing same
10/31/2002US20020158532 Magneto-generator, method of manufacturing the same and resin molding die assembly for manufacturing the same
10/30/2002EP1253701A2 Motor
10/30/2002EP1252035A1 Integrated retarder and accessory device
10/30/2002CN1377118A Permanent-magnet rotor and permanent-magnet electric rotating machine
10/30/2002CN1377117A Synchronous electric motor rotor and manufacturing method thereof
10/30/2002CN1093697C Interlocking segmented coil array
10/29/2002US6472789 Electric rotary machine with novel rotor excitation arrangement by permanent magnets
10/29/2002US6472784 Methods and apparatus for increasing power of permanent magnet motors
10/29/2002US6472783 Brushless, electronic commuted motor
10/26/2002CA2345508A1 Hydrogen rotary generator
10/24/2002WO2002049187A3 Stator design of a unipolar transverse flux machine
10/24/2002US20020154840 Ceramic dynamic pressure bearing, motor with bearing, hard disk device, and polygon scanner
10/24/2002US20020153798 Power generator unit composed of a generator and a piston internal combustion engine as the drive.
10/24/2002US20020153797 Electronically commutated machine, in particular motor
10/24/2002US20020153796 Generator-motor for vehicle
10/24/2002US20020153795 Permanent magnet type electric rotating machine and hybrid electric vehicle using it
10/24/2002US20020153794 Motor
10/24/2002US20020153793 Power generating installation that comprises a generator and a reciprocating internal combustion engine as drive
10/24/2002US20020153791 Power generating installation that compises a drive engine and a generator
10/24/2002US20020153790 Magnetically levitated motor
10/24/2002DE10118908A1 Axially wound brushless DC motor controls rotor operation by suitably changing magnetic property of pole edges of magnetic conduction pipe and pole pieces
10/23/2002EP1251626A2 Bearing device and spindle motor provided with the bearing device
10/23/2002EP1251620A1 Rotating machine with a stator comprising assembled sectors
10/23/2002EP1251023A1 Electrical machine with external rotor