Patents-Review.com
ClassID:

217485 ⎘

H02K21/04 - CPC Classification

Classification description:

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets; Details Windings on magnets for additional excitation ; Windings and magnets for additional excitation

Sub-classes:
Recent Application in this class:
#1
20250239927
2025-07-24

ELECTRICALLY EXCITED SYNCHRONOUS MOTOR, DRIVE SYSTEM AND VEHICLE

 #2
20230052512
2023-02-16

Motor/generator

 #3
20230018320
2023-01-19

Permanent magnet machine and rotor therefor

 #4
20220385157
2022-12-01

ELECTRIC ROTATING MACHINE

 #5
20220368260
2022-11-17

Driving and resistance control system for permanent-magnet synchronous motor

 #6
20220231615
2022-07-21

Secondary magnetic excitation generator-motor device

 #7
20210391777
2021-12-16

Generator with lap windings and segmented permanent magnets

 #8
20210249940
2021-08-12

DIRECT CURRENT POWER SUPPLY EXCITER MANAGEMENT

 #9
20210184541
2021-06-17

ELECTRIC ROTATING MACHINE

 #10
20210184519
2021-06-17

Electric rotating machine

 #11
20200204053
2020-06-25

Single stack multiphase transverse flux machines

 #12
20200119630
2020-04-16

Rotary electric machine

 #13
20200091783
2020-03-19

Self-exciting synchronous reluctance generators

 #14
20200036251
2020-01-30

Electric rotary machine

 #15
20190267856
2019-08-29

Double-rotor flux-switching machine

 #16
20190148995
2019-05-16

Permanent magnet synchronous machine and method for manufacturing permanent magnet synchronous machine stator

 #17
20190131833
2019-05-02

Rotary electrical machine

 #18
20190058381
2019-02-21

Rotating electric machine

 #19
20180375392
2018-12-27

Self-exciting synchronous reluctance generators

 #20
20180221099
2018-08-09

Methods, systems, and devices for controlling a motor of a robotic surgical system

 #21
20180123408
2018-05-03

Disc-type magnetism-increasing DC generator

 #22
20170250594
2017-08-31

Electric motor

 #23
20160294238
2016-10-06

Wound field generator system featuring combined permanent magnet generator excitation with exciter stator

 #24
20160164394
2016-06-09

Electropermanent magnet-based motors

 #25
20160087517
2016-03-24

Large magnetically geared machines

 #26
20150084472
2015-03-26

Electrical Power Motor-Generator Excited by Magnetic Transference

 #27
20140368077
2014-12-18

Hybrid excitation rotating electrical machine

 #28
20140265693
2014-09-18

Permanent magnet machine for integrated starter generator

 #29
20140049124
2014-02-20

Double-rotor flux-switching machine

 #30
20130221788
2013-08-29

Hybrid excitation rotating electrical machine

 #31
20130162094
2013-06-27

Synchronous rotary electric machine having hybrid-excitation rotor

 #32
20130162093
2013-06-27

Synchronous rotary electric machine having a hybrid-excitation rotor

 #33
20130134815
2013-05-30

Large magnetically geared machines

 #34
20130127378
2013-05-23

Rotating electromechanical converter

 #35
20130113318
2013-05-09

Motor

 #36
20130106204
2013-05-02

Electric machine with linear mover

 #37
20120256524
2012-10-11

Starter machine system and method

 #38
20120248921
2012-10-04

Rotary electric machine with armature magnetic reaction compensation

 #39
20120217833
2012-08-30

Permanent-magnet type electric rotating machine

 #40
20120193179
2012-08-02

Electromagnetic actuator with integrated passive damper

 #41
20120187309
2012-07-26

Method for fabricating an electromagnetic actuator, an electromagnetic actuator, and a charged particle device comprising the same

 #42
20110273046
2011-11-10

Electric motor

 #43
20110210637
2011-09-01

Rotor for an electric machine with reduced detent torque

 #44
20110175478
2011-07-21

Permanent magnet electric motor inducing short circuit current in short circuit coil

 #45
20100308676
2010-12-09

Internal split field generator

 #46
20100308675
2010-12-09

External split field generator

 #47
20100289359
2010-11-18

Electropermanent magnet-based motors

 #48
20100139333
2010-06-10

Motor controller and drum washing machine

 #49
20100090640
2010-04-15

Motor controller, motor control system, and washing machine

 #50
20090295249
2009-12-03

Hybrid-type synchronous machine

 #51
20090206682
2009-08-20

Primary part and linear electrical machine with force ripple compensation

 #52
20090206681
2009-08-20

Primary part and linear electrical machine with force ripple compensation

 #53
20090045683
2009-02-19

LINEAR VARIABLE RELUCTANCE ACTUATOR HAVING BAND COILS

 #54
20080129136
2008-06-05

Axial gap type motor

 #55
20080100151
2008-05-01

Brushless motor

 #56
20070273217
2007-11-29

Magnetic drive device

 #57
20070236090
2007-10-11

Secondary part of an electrical machine

 #58
20070222304
2007-09-27

Electric machine

 #59
20060043813
2006-03-02

Stator structures

 #60
20060038454
2006-02-23

DC induction electric motor-generator