ClassID:

217502

H02K21/227 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos having an annular armature coil

Recent Application in this class:
#1
20250379477
2025-12-11

TRANSVERSE FLUX ELECTRIC MACHINE

#2
20250330052
2025-10-23

ROTARY ELECTRICAL DEVICE, FAN, COMPRESSOR, REFRIGERATION APPARATUS, AND VEHICLE

#3
20250226705
2025-07-10

TRANSVERSE FLUX MACHINE WITH ASYMMETRIC STATOR

#4
20250023435
2025-01-16

ELECTRIC MOTOR

#5
20250015644
2025-01-09

TRANSVERSE FLUX MACHINE

#6
20240146167
2024-05-02

MOTOR, FAN APPARATUS, REFRIGERATION APPARATUS

#7
20240146145
2024-05-02

MOTOR, COMPRESSION APPARATUS, FAN APPARATUS, AND REFRIGERATION APPARATUS

#8
20240079921
2024-03-07

MOTOR GENERATOR

#9
20240055920
2024-02-15

ROTATING ELECTRIC MACHINE

#10
20230421001
2023-12-28

Stator and motor including the stator

#11
20230179032
2023-06-08

Motor

#12
20230155433
2023-05-18

Motor structure

#13
20230058117
2023-02-23

TRANSVERSE FLUX ELECTRIC MACHINE

#14
20230006523
2023-01-05

System and method for an electric motor/generator with a multi-layer stator/rotor assembly

#15
20220410999
2022-12-29

Electric power generator for human-powered vehicle

#16
20220181959
2022-06-09

Rotating electric machine

#17
20220123609
2022-04-21

Motor designs having spline structure connecting motor shaft and stator structure

#18
20220099062
2022-03-31

Crankshaft driven flywheel magneto generator with circular winding for power supply in handheld batteryless combustion engines

#19
20210302386
2021-09-30

ELECTROMAGNETIC TRANSDUCER WITH DUAL FLUX

#20
20210057973
2021-02-25

System and method for an electric motor/generator with a multi-layer stator/rotor assembly

#21
20190190364
2019-06-20

Multi-teeth switched reluctance motor

#22
20190181701
2019-06-13

Motor for drone and drone comprising same

#23
20180376247
2018-12-27

Electromagnetic transducer with non-axial air gap

#24
20180372692
2018-12-27

Electromagnetic transducer with dual flux

#25
20180342925
2018-11-29

Motor

#26
20180342912
2018-11-29

Motor

#27
20180287443
2018-10-04

Rotating electric machine

#28
20180234000
2018-08-16

Actuator and electric beauty device

#29
20180215055
2018-08-02

Actuator and electric beauty device

#30
20180191219
2018-07-05

Slim reel-type brushless motor and insulation seat thereof

#31
20180159390
2018-06-07

Electronically switched electric motor and corresponding air pulse device

#32
20170366052
2017-12-21

Claw pole type motor and home appliance including same

#33
20170358975
2017-12-14

Adjustment Unit

#34
20170264176
2017-09-14

Rotary electrical machine with homopolar structure

#35
20170248145
2017-08-31

OUTER-ROTOR MOTOR AND BLOWER HAVING THE SAME

#36
20170214281
2017-07-27

Motor using complex magnetic flux

#37
20160190901
2016-06-30

Methods of assembling an electrical machine

#38
20150369252
2015-12-24

High efficiency transverse flux motor fan

#39
20150162786
2015-06-11

Transverse flux stator geometry

#40
20140062242
2014-03-06

Transverse flux permanent magnet rotatory device

#41
20140042851
2014-02-13

Motor and method for manufacturing stator core and rotor core of motor

#42
20130113320
2013-05-09

Transverse and/or commutated flux systems having multidirectional laminations

#43
20130057047
2013-03-07

Bicycle motor hub

#44
20130015733
2013-01-17

Transverse flux machine

#45
20120308416
2012-12-06

COOLING FAN AND ROTOR THEREOF

#46
20120025637
2012-02-02

Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching

#47
20110254409
2011-10-20

Reduced size and light weight hub dynamo of bicycle

#48
20110254401
2011-10-20

Permanent-magnet switched-flux machine

#49
20110248589
2011-10-13

Circular transformer-generator

#50
20110169381
2011-07-14

Transverse and/or commutated flux systems for electric bicycles

#51
20110169366
2011-07-14

Transverse and/or commutated flux systems having phase offset

#52
20110169365
2011-07-14

Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching

#53
20110169357
2011-07-14

Compact electromechanical actuator

#54
20110043064
2011-02-24

Transverse flux rotary machine and switching device equipped with such a machine

#55
20110038166
2011-02-17

HIGH EFFICIENCY HEAT DISSIPATING DEVICE FOR LAMPS

#56
20110018383
2011-01-27

Permanent-magnet switched-flux machine

#57
20100320879
2010-12-23

Power-generating wheel hub

#58
20100314963
2010-12-16

PERMANENTLY EXCITED ELECTRICAL MACHINE

#59
20100219711
2010-09-02

Auxiliary assembly of an internal combustion engine

#60
20100123371
2010-05-20

Generator structure for a bicycle hub

#61
20100117572
2010-05-13

Brushless motor control device and brushless motor control method

#62
20090322165
2009-12-31

High-efficiency wheel-motor utilizing molded magnetic flux channels with transverse-flux stator

#63
20090236930
2009-09-24

Motor and control unit thereof

#64
20090195090
2009-08-06

High-efficiency wheel-motor utilizing molded magnetic flux channels with transverse-flux

#65
20090134740
2009-05-28

MOTOR AND FAN UNIT USING THE SAME

#66
20090134733
2009-05-28

Vibration generating stepping motor

#67
20090021089
2009-01-22

Motor and control unit thereof

#68
20090015089
2009-01-15

Permanent-magnet switched-flux machine

#69
20080278012
2008-11-13

Vibration-generating stepping motor

#70
20080218021
2008-09-11

Rotor arrangement for a unilateral transverse flux machine with flux concentration

#71
20080197739
2008-08-21

AC electric motor

#72
20080093946
2008-04-24

Electric generator

#73
20080088135
2008-04-17

Electric power generating system using ring-shaped generators

#74
20080030161
2008-02-07

Electric motor system

#75
20070267929
2007-11-22

Stator arrangement and rotor arrangement for a transverse flux machine

#76
20070252448
2007-11-01

Stator module

#77
20070176505
2007-08-02

Permanent-magnet switched-flux machine

#78
20070069600
2007-03-29

Electric generator

#79
20070013253
2007-01-18

Transverse flux electrical machine with segmented core stator

#80
20060202575
2006-09-14

Hub dynamo

#81
20060197397
2006-09-07

Stator, motor, and method of manufacturing such stator

#82
20060175927
2006-08-10

Claw-pole electric generator and bicycle electric generator hub

#83
20060001323
2006-01-05

Tumbling magnet electricity generating system

#84
20050121989
2005-06-09

Brushless motor having claw pole type stator

#85
20050110364
2005-05-26

Electromagnetic actuator and portable device having the same

#86
20050029900
2005-02-10

Generator