Patents
Patents for H02K 37 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors (3,591)
03/2001
03/27/2001US6208046 Stepping motor
03/20/2001US6204587 Self-Starting electric brushless motor having permanent magnet and reluctance poles
03/15/2001WO2001018940A2 Permanent magnet motor
03/13/2001US6201324 Stator pole teeth for a claw pole stepping motor
03/08/2001WO2001016655A1 Timepiece device
03/06/2001US6198182 Two-phase stepper motor having two disk stators with salient poles positioned on either side of two disk rotors
02/2001
02/27/2001US6194862 Control device for stepper motor, control method for the same, and timing device
02/20/2001US6191517 Brushless synchronous rotary electrical machine
02/20/2001US6191509 Permanent magnet type stepping motor
02/14/2001EP0811269B1 Two-phase motor, particularly a time piece motor or a motor for driving the hand of a display
02/14/2001CN1062092C 小型电动机 Small motors
02/01/2001WO2001008283A1 Electric drive (options)
02/01/2001CA2345040A1 Electric drive (options)
01/2001
01/31/2001CN2417629Y Improved structure of step-by-step motor
01/24/2001CN2416664Y Driving device of DC stepping motor
01/18/2001WO2001005019A1 Motor or generator type electromagnetic devices
01/17/2001EP1069670A1 Hybrid electric motor
01/17/2001CN2415538Y Permanent-magnet double- and single-pole motor
01/09/2001US6172589 Hard magnetic alloy having supercooled liquid region, sintered or cast product thereof or stepping motor and speaker using the alloy
01/09/2001US6172440 Motor
01/09/2001US6172438 Two-phase permanent-magnet electric rotating machine
01/04/2001WO2001001558A1 Method for setting a polyphase electric stepper motor
01/03/2001EP1064712A1 Multi-phase transverse flux machine
01/03/2001EP0983628A4 Brushless synchronous rotary electrical machine
01/02/2001US6169644 Read/write device
12/2000
12/12/2000US6160330 Three-phase stepping motor and driving method therefor
12/06/2000EP1058372A2 Motor utilizing basic factor and having generator function
12/06/2000CN2409706Y Double set direction change permanent magnet stepping motor
12/05/2000US6157107 Motor with magnetic stator poles inside and outside the rotor magnet
12/05/2000US6157103 Step motor
11/2000
11/30/2000WO2000072429A1 Step motor with double coil in a plane
11/30/2000CA2374535A1 Step motor with double coil in a plane
11/28/2000US6154013 Electric motor or generator
11/28/2000US6153953 Multi-phase PM-type stepping motor
11/28/2000US6153952 DC torque motor, and drive control apparatus and throttle valve control apparatus using DC torque motor
11/22/2000EP1053587A1 Hybrid stepper motor having optimized torque density
11/22/2000EP1053452A1 Shaft drive
11/21/2000US6150750 Piezoelectric linear step motor
11/16/2000WO2000069046A1 Brushless synchronous rotary electrical machine
11/08/2000CN1272713A Electric motor
11/07/2000US6144120 Stepping motor for stable control of position of driven body
10/2000
10/25/2000CN2403172Y Permanent-magnet compound single-phase step-by-step motor
10/18/2000CN2402055Y Step motor for quartzcrystal clock
10/17/2000US6133655 Claw-pole stepping motor with rotor including vibration reducing magnet
10/12/2000WO2000060728A1 Rotating electromagnetic motor
10/12/2000WO2000022715A9 Switched reluctance motor
10/04/2000EP1041698A2 Motor
10/04/2000CN2399887Y Surrounding-current permanent-magnet electromachine with axial magnetic field
09/2000
09/27/2000CN1267949A 步进电机 Stepper motor
09/27/2000CN1267948A Electromechanical single-phase stepped motor
09/26/2000US6124651 Method for driving stepping motor of multiphase hybrid type
09/19/2000US6121712 Three-phase permanent magnet cascade claw type stepping motor
09/05/2000US6114789 Switched reluctance motor
09/05/2000US6114782 Two-phase hybrid step motor driven by three-phase driver
08/2000
08/31/2000DE19933511A1 Stepper motor for stable control of position of driven body e.g. vehicle lamp unit, has pressure devices arranged between housing and rotor to press rotor against housing, and protrusion pressed against rotor
08/31/2000DE10008239A1 Reluctance motor has stator and rotor teeth with defined arc angle geometry and pairs of stimulation coils arranged around stator teeth mutually offset by 180 degrees
08/30/2000CN2394368Y Step motor stator with multiple poles
08/23/2000CN1055801C Method of manufacturing stator for stepping motor
08/22/2000US6108488 Speed control system for repulsion motor
08/22/2000US6108279 Stepping motor control device and method thereof and timepiece
08/10/2000WO2000046909A1 Rotary actuating drive and rotary switch
08/10/2000DE19904469A1 Dreh-Stellantrieb und Drehschalter Rotary actuator and rotary switch
08/10/2000CA2360880A1 Rotary actuating drive and rotary switch
08/09/2000CN1262807A Stepping motor, printing device using it or paper feeding device, and printer
08/09/2000CN1262548A Permanent-magnet type stepping motor
08/08/2000US6100620 High frequency synchronous rotary electrical machine
08/08/2000US6100612 Stepping motor
08/03/2000WO2000045501A1 Permanent magnet electric machine with energy saving control
08/02/2000EP1024578A1 Magnet device with integrally formed attachment
08/02/2000CN1261992A Electrical machine with soft-mangetic teeth and a method for producing same
07/2000
07/26/2000CN1261474A Motor
07/18/2000US6091900 Lens barrel and image pickup apparatus
07/12/2000EP1018797A2 Stepping motor
07/12/2000EP1018796A2 Stepping motor
07/12/2000CN1259790A Stepping motor
07/12/2000CN1054482C Electromagnetic motor
07/05/2000CN1258955A Electric motor
06/2000
06/27/2000US6081058 Motor structure having a permanent magnet motor with grooves to reduce torque ripples
06/20/2000US6078122 Reluctance machine with fractional pitch winding and drive therefore
06/20/2000CA2121357C Rotary electric machine
06/14/2000EP1009092A2 Toroidal core type actuator
06/14/2000EP1009091A2 Actuator device with valve
06/14/2000CN1256549A Quasi-synchronous reluctance motor
05/2000
05/30/2000US6069466 Method for driving opening/closing member
05/17/2000EP1000458A1 Electrical machine with soft-magnetic teeth and a method for producing same
05/10/2000EP0998781A1 Claw pole motor
05/09/2000US6060809 Staggered pole switched reluctance motor
05/09/2000US6060806 Electric motor
05/09/2000US6060800 Motor structure
05/04/2000WO2000025409A1 Switched reluctance motor
05/02/2000US6057613 Hybrid stepper motor having optimized torque density
04/2000
04/20/2000WO2000022715A1 Switched reluctance motor
04/19/2000EP0878047A4 Staggered pole switched reluctance motor
04/19/2000CN2375028Y Single pulse fixed angle electrical machinery
04/18/2000US6051903 Switched reluctance motor
04/18/2000US6051898 Stepping motor having external rotor and electromagnetic-combined-permanent-magnet stator
04/12/2000EP0993102A1 Stepping motor, printing device using it or paper feeding device, and printer
04/11/2000US6049197 Electric motor or generator
04/11/2000US6049187 Speed control for brushless repulsion motor
04/11/2000US6049151 Linear motor structure
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