ClassID:

217491

H02K21/12 - page 2 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets

Recent Application in this class:
#301
20120267974
2012-10-25

Electromagnetic motor-generator unit

#302
20120262095
2012-10-18

Air gap control systems and methods

#303
20120262020
2012-10-18

Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements

#304
20120262019
2012-10-18

Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements

#305
20120248917
2012-10-04

STATOR AND ROTOR-STATOR STRUCTURES FOR ELECTRODYNAMIC MACHINES

#306
20120235528
2012-09-20

Toroidal inductance generator

#307
20120228981
2012-09-13

Electric Machine

#308
20120228979
2012-09-13

OUTER ROTOR ASSEMBLIES FOR ELECTRODYNAMIC MACHINES

#309
20120228978
2012-09-13

Rotor-stator structures including boost magnet structures for magnetic regions having angled confronting surfaces in rotor assemblies

#310
20120228977
2012-09-13

ROTOR-STATOR STRUCTURES WITH AN OUTER ROTOR FOR ELECTRODYNAMIC MACHINES

#311
20120228976
2012-09-13

Rotor-stator structures including boost magnet structures for magnetic regions in rotor assemblies disposed external to boundaries of conically-shaped spaces

#312
20120228965
2012-09-13

Direct-drive electric machine configured with a plural-module combination structure

#313
20120222526
2012-09-06

DRIVE MOTOR

#314
20120200184
2012-08-09

RELATIVE DRIVING DEVICE, MOVING VEHICLE, AND ROBOT

#315
20120187792
2012-07-26

Permanent magnet motor having rotor cover

#316
20120169063
2012-07-05

PERMANENT MAGNET GENERATOR

#317
20120161572
2012-06-28

Electromagnetically-countered actuator systems and methods

#318
20120153757
2012-06-21

POLYPHASIC MULTI-COIL ELECTRIC DEVICE

#319
20120139379
2012-06-07

Rotating machine and rotor thereof

#320
20120133466
2012-05-31

Method and apparatus for coil-less magnetoelectric magnetic flux switching for permanent magnets

#321
20120119599
2012-05-17

Transverse and/or commutated flux systems having laminated and powdered metal portions

#322
20120105930
2012-05-03

Galvanoscanner and laser processing machine

#323
20120074930
2012-03-29

Moving magnetic field generating apparatus

#324
20120062154
2012-03-15

Flywheel system using wire-wound rotor

#325
20120013275
2012-01-19

Motor for linear and rotary movement

#326
20120007458
2012-01-12

Electrical machine

#327
20120001512
2012-01-05

Electric motor

#328
20110309806
2011-12-22

Rotor Electromagnetically Coupled with Stator

#329
20110298217
2011-12-08

Rotational kinetic energy conversion system

#330
20110285338
2011-11-24

TORQUE AMPLIFIER APPARATUS

#331
20110266908
2011-11-03

Rotating electric machine, especially synchronous permanent magnet machine

#332
20110234343
2011-09-29

Cylindrical magnetic levitation stage

#333
20110234037
2011-09-29

Stator and rotor-stator structures for electrodynamic machines

#334
20110210633
2011-09-01

Multi-Phase Rotating Motor

#335
20110204736
2011-08-25

Electric rotary machine

#336
20110167623
2011-07-14

Method for assembling the rotor of an electric machine

#337
20110095635
2011-04-28

Various motor assembly

#338
20110084567
2011-04-14

Rotating electric machine system

#339
20110071400
2011-03-24

SYSTEMS AND METHODS FOR MAKING AND USING INTRAVASCULAR ULTRASOUND IMAGING SYSTEMS WITH SEALED IMAGING CORES

#340
20110068651
2011-03-24

Rotor for permanent magnet rotating machine

#341
20110057591
2011-03-10

Synchronous electric motor drive system

#342
20110057535
2011-03-10

REVERSE ELECTROMOTIVE FORCE GENERATING MOTOR

#343
20110057534
2011-03-10

REVERSE ELECTROMOTIVE FORCE GENERATING MOTOR

#344
20110043066
2011-02-24

BILAYER MAGNETIC ELECTRIC MOTOR

#345
20110001364
2011-01-06

Electric motor

#346
20100327674
2010-12-30

Wheel motor

#347
20100308676
2010-12-09

Internal split field generator

#348
20100308675
2010-12-09

External split field generator

#349
20100295410
2010-11-25

Electrical devices using electromagnetic rotors

#350
20100264770
2010-10-21

PERMANENT-MAGNET SYNCHRONOUS MACHINE WITH SUPPRESSION MEANS FOR IMPROVING THE TORQUE RIPPLE

#351
20100244613
2010-09-30

Optimized electric machine for smart actuators

#352
20100244610
2010-09-30

Optimized electric machine for smart actuators

#353
20100244603
2010-09-30

ELECTRIC MACHINE

#354
20100244446
2010-09-30

Gas turbine engine assembly including dual sided/dual shaft electrical machine

#355
20100237822
2010-09-23

Drive unit for rotating electrical machine

#356
20100213885
2010-08-26

Magnetic flux controllable rotating electric machine system

#357
20100213782
2010-08-26

Five-phase motor with improved stator structure

#358
20100194231
2010-08-05

Compressed motor winding

#359
20100194218
2010-08-05

Stator winding heat sink configuration

#360
20100187922
2010-07-29

Motor air flow cooling

#361
20100181858
2010-07-22

Flux concentrator for ironless motors

#362
20100171451
2010-07-08

Integrated composite electromechanical machines

#363
20100171450
2010-07-08

Composite electromechanical machines with controller

#364
20100171384
2010-07-08

Electro-magnetic motor generator system

#365
20100171378
2010-07-08

Method of making integrated stator, brushless direct-current motor of radial core type double rotor structure using the integrated stator, and method of making the same

#366
20100164660
2010-07-01

Method and apparatus for coil-less magnetoelectric magnetic flux switching for permanent magnets

#367
20100164321
2010-07-01

Electromagnetically-countered actuator systems and methods

#368
20100164307
2010-07-01

Method of making integrated stator, brushless direct-current motor of radial core type double rotor structure using the integrated stator, and method of making the same

#369
20100152524
2010-06-17

Modular magneto mechanical device

#370
20100148516
2010-06-17

WIND POWERED GENERATOR

#371
20100094483
2010-04-15

Control and motor arrangement for use in model train

#372
20100090553
2010-04-15

Polyphasic multi-coil electric device

#373
20100060004
2010-03-11

Frictionless Generator

#374
20100045222
2010-02-25

Direct flux regulated permanent magnet brushless motor utilizing sensorless control by DC and AC excitation

#375
20100025128
2010-02-04

Power plant

#376
20100013233
2010-01-21

Vertical shaft, horizontally driven, shrouded wind/electric system

#377
20100007303
2010-01-14

Torquer apparatus

#378
20090323208
2009-12-31

Rotary actuator for auto-focusing a camera lens

#379
20090322177
2009-12-31

ELECTROMAGNETIC ACTUATOR

#380
20090309447
2009-12-17

POLYPHASE MACHINE COMPRISING A BELL-SHAPED ROTOR

#381
20090309442
2009-12-17

Electrical machine with improved stator flux pattern across a rotor that permits higher torque density

#382
20090280988
2009-11-12

Coreless and brushless direct-current motor, Gifford McMahon (GM) cryogenic cooler, pulse tube cryogenic cooler, cryopump, magnetic resonance imaging (MRI) apparatus, superconducting magnet (SCM) apparatus, nuclear magnetic resonance (NMR) apparatus, and cryogenic cooler for cooling semiconductor

#383
20090278415
2009-11-12

CORELESS MOTOR HAVING ROTORS ARRANGED CONCENTRICALLY AND DRIVING APPARATUS HAVING THE MOTOR

#384
20090267439
2009-10-29

Generator constituted to generate electric power by ring-shaped rotations

#385
20090261675
2009-10-22

HIGH EFFICIENT MAGNETIC ENERGY SHIFTING DEVICE

#386
20090224628
2009-09-10

TWIN ROTOR TYPE MOTOR

#387
20090218904
2009-09-03

Electric machine with concentrated windings

#388
20090184602
2009-07-23

Permanent-Magnet Synchronous Machine with Suppression Means for Improving the Torque Ripple

#389
20090174277
2009-07-09

Generator and magnetic flux conducting unit

#390
20090162225
2009-06-25

PUMP FOR LIQUID COOLING SYSTEM

#391
20090160288
2009-06-25

Electrical devices using electronmagnetic rotors

#392
20090146431
2009-06-11

Faucet generator

#393
20090134735
2009-05-28

MOTOR HAVING TWIN-ROTOR AND APPARATUS HAVING THE SAME

#394
20090121572
2009-05-14

Electric machinery of permeable polar face & magnetic circuit sandwiched PM magnetic pole

#395
20090115278
2009-05-07

Double rotor type motor

#396
20090102305
2009-04-23

Brushless electric machine

#397
20090072650
2009-03-19

Motor

#398
20090066275
2009-03-12

Brushless electric machine and apparatus using the same

#399
20090064728
2009-03-12

WASHING MACHINE WITH DOUBLE ROTOR TYPE MOTOR

#400
20090064726
2009-03-12

Driving apparatus for washing machine

#401
20090039726
2009-02-12

Electric motor

#402
20090039717
2009-02-12

Toothed module for primary parts of permanent-magnet synchronous motors

#403
20090033169
2009-02-05

Magnetic structure and motor employing said magnetic structure, and driver comprising said motor

#404
20090026878
2009-01-29

Can of wet-running electric motor and pump assembly

#405
20090021095
2009-01-22

Rotary electric machine

#406
20080315706
2008-12-25

Current limiting means for a generator

#407
20080309188
2008-12-18

Electrical devices with reduced flux leakage using permanent magnet components

#408
20080284267
2008-11-20

Rotor assembly

#409
20080278019
2008-11-13

Magnetic force rotation device

#410
20080246362
2008-10-09

Radial airgap, transverse flux machine

#411
20080238233
2008-10-02

Fault-tolerant permanent magnet machine with reconfigurable stator core slot opening and back iron flux paths

#412
20080238220
2008-10-02

Fault-tolerant permanent magnet machine with reconfigurable stator core slot flux paths

#413
20080238217
2008-10-02

Fault-tolerant permanent magnet machine with reconfigurable flux paths in stator back iron

#414
20080231134
2008-09-25

Electric drive having a bell-shaped armature and external permanent magnet elements

#415
20080224550
2008-09-18

Magnetic Motor

#416
20080211436
2008-09-04

Measuring device for determining a position between a primary part and a secondary part by magnetic flux measurements

#417
20080197738
2008-08-21

Rotating field machine with bell-shaped rotor

#418
20080174211
2008-07-24

MOTIVE FORCE GENERATING DEVICE

#419
20080174194
2008-07-24

Double-sided starter/generator for aircrafts

#420
20080169720
2008-07-17

Synchronous electromechanical transformer

#421
20080169140
2008-07-17

Machine for augmentation, storage, and conservation of vehicle motive energy

#422
20080136569
2008-06-12

METHOD AND APPARATUS FOR COIL-LESS MAGNETOELECTRIC MAGNETIC FLUX SWITCHING FOR PERMANENT MAGNETS

#423
20080122312
2008-05-29

Pancake style kinetic energy electrical generator

#424
20080100151
2008-05-01

Brushless motor

#425
20080088200
2008-04-17

POLY-PHASIC MULTI-COIL GENERATOR

#426
20080054745
2008-03-06

Modular magneto-mechanical device

#427
20080041267
2008-02-21

Control and motor arrangement for use in model train

#428
20080024034
2008-01-31

Coreless and brushless direct-current motor, Gifford McMahon (GM) cryogenic cooler, pulse tube cryogenic cooler, cryopump, Magnetic Resonance Imaging (MRI) apparatus, Superconducting Magnet (SCM) apparatus, Nuclear Magnetic Resonance (NMR) apparatus, and cryogenic cooler for cooling semiconductor

#429
20080018189
2008-01-24

Current limiting means for a generator

#430
20070296369
2007-12-27

Thin linear, rotary, and step motor and electromagnet driver using printed coil board

#431
20070296299
2007-12-27

Permanent magnet machine with windings having strand transposition

#432
20070285043
2007-12-13

Control and motor arrangement for use in model train

#433
20070273322
2007-11-29

METHOD, APPARATUS, AND SYSTEM FOR DRIVE CONTROL, POWER CONVERSION, AND START-UP CONTROL IN AN SRM OR PMBDCM DRIVE SYSTEM

#434
20070236099
2007-10-11

Method of making integrated stator, brushless direct-current motor of radial core type double rotor structure using the integrated stator, and method of making the same

#435
20070228860
2007-10-04

Three-gapped motor with outer rotor and stationary shaft

#436
20070228859
2007-10-04

GAPPED MOTOR WITH OUTER ROTOR AND STATIONARY SHAFT

#437
20070228856
2007-10-04

Efficiency magnetic motor

#438
20070210657
2007-09-13

Brushless DC motors and systems using the same

#439
20070205682
2007-09-06

Dual rotor type motor

#440
20070200452
2007-08-30

BRUSHLESS MOTOR

#441
20070186692
2007-08-16

Electric machine apparatus with integrated, high torque density magnetic gearing

#442
20070159024
2007-07-12

Electric motor

#443
20070138896
2007-06-21

Outer magnetic circuit bias magnetic bias reluctance machine with permanent magnets

#444
20070126303
2007-06-07

Apparatus and method for constructing electrodynamic machines

#445
20070108865
2007-05-17

Electrical machine with double-sided stator

#446
20070103027
2007-05-10

Electrical machine with double-sided lamination stack

#447
20070085442
2007-04-19

Commutation of brushless electrodynamic machines

#448
20070075593
2007-04-05

Motor modules for linear and rotary motors

#449
20070013253
2007-01-18

Transverse flux electrical machine with segmented core stator

#450
20070013242
2007-01-18

Electrical fan

#451
20070007840
2007-01-11

Centrifugal water pump having polar anisotropic magnetic ring

#452
20060238064
2006-10-26

Flat radially interacting electric drive and a method of the manufacturing the same

#453
20060208596
2006-09-21

BRUSHLESS MOTOR

#454
20060202645
2006-09-14

Control and motor arrangement for use in model train

#455
20060181175
2006-08-17

METHOD AND APPARATUS FOR COIL-LESS MAGNETOELECTRIC MAGNETIC FLUX SWITCHING FOR PERMANENT MAGNETS

#456
20060152099
2006-07-13

Rotor-stator structure for electrodynamic machines

#457
20060145555
2006-07-06

Rotor-stator structure for electrodynamic machines

#458
20060138879
2006-06-29

Electric wheel

#459
20060091755
2006-05-04

Transverse flux switched reluctance motor and control methods

#460
20060087188
2006-04-27

Rotor-stator structure for electrodynamic machines

#461
20060087186
2006-04-27

Rotor-stator structure for electrodynamic machines

#462
20060082238
2006-04-20

Brushless rotary electric machine having tandem rotary cores

#463
20060071577
2006-04-06

Magnetic structure and motor employing said magnetic structure, and driver comprising said motor

#464
20060071575
2006-04-06

Electrical machine with double-sided stator

#465
20060066110
2006-03-30

Electrical machine with double-sided lamination stack

#466
20060056822
2006-03-16

Brushless direct current motor and driver thereof

#467
20060033392
2006-02-16

Polyphasic multi-coil generator

#468
20060012453
2006-01-19

Method and apparatus for coil-less magnetoelectric magnetic flux switching for permanent magnets

#469
20060006745
2006-01-12

Integrated blower for cooling device

#470
20050285474
2005-12-29

Rotating electric machine

#471
20050264119
2005-12-01

Magnetic bearing using displacement winding techniques

#472
20050236920
2005-10-27

Brushless rotary electric machine having tandem rotary cores

#473
20050231056
2005-10-20

Brushless motor

#474
20050200232
2005-09-15

Electric motor

#475
20050184690
2005-08-25

Multiphase motors with single point sensing based commutation

#476
20050184615
2005-08-25

Current limiting means for a generator

#477
20050151437
2005-07-14

Radial-axial electromagnetic flux electric motor, coaxial electromagnetic flux electric motor, and rotor for same

#478
20050146304
2005-07-07

Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive system

#479
20050140237
2005-06-30

Rotary motion

#480
20050116579
2005-06-02

Motor for blowers

#481
20050115352
2005-06-02

Motor, robot, substrate loader, and exposure apparatus

#482
20050040720
2005-02-24

Transverse flux electrical machine with toothed rotor

#483
20050023999
2005-02-03

Control and motor arrangement for use in model train

#484
20050023919
2005-02-03

Permanent magnet motor

#485
17664410
2025-04-29

Torque generator for scaling up efficiency

#486
17474618
2024-02-20

Prime mover with integral drivers for providing multiple modes of locomotion

#487
15916320
2019-05-14

Method for operating a synchronous motor

#488
15330324
2018-10-30

Thin-profile counter-rotating differential electric motor assembly

#489
13456868
2016-10-25

Electrical machine having locked permanent magnets and rotor slices