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) |
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03/27/2001 | US6208046 Stepping motor |
03/20/2001 | US6204587 Self-Starting electric brushless motor having permanent magnet and reluctance poles |
03/15/2001 | WO2001018940A2 Permanent magnet motor |
03/13/2001 | US6201324 Stator pole teeth for a claw pole stepping motor |
03/08/2001 | WO2001016655A1 Timepiece device |
03/06/2001 | US6198182 Two-phase stepper motor having two disk stators with salient poles positioned on either side of two disk rotors |
02/27/2001 | US6194862 Control device for stepper motor, control method for the same, and timing device |
02/20/2001 | US6191517 Brushless synchronous rotary electrical machine |
02/20/2001 | US6191509 Permanent magnet type stepping motor |
02/14/2001 | EP0811269B1 Two-phase motor, particularly a time piece motor or a motor for driving the hand of a display |
02/14/2001 | CN1062092C 小型电动机 Small motors |
02/01/2001 | WO2001008283A1 Electric drive (options) |
02/01/2001 | CA2345040A1 Electric drive (options) |
01/31/2001 | CN2417629Y Improved structure of step-by-step motor |
01/24/2001 | CN2416664Y Driving device of DC stepping motor |
01/18/2001 | WO2001005019A1 Motor or generator type electromagnetic devices |
01/17/2001 | EP1069670A1 Hybrid electric motor |
01/17/2001 | CN2415538Y Permanent-magnet double- and single-pole motor |
01/09/2001 | US6172589 Hard magnetic alloy having supercooled liquid region, sintered or cast product thereof or stepping motor and speaker using the alloy |
01/09/2001 | US6172440 Motor |
01/09/2001 | US6172438 Two-phase permanent-magnet electric rotating machine |
01/04/2001 | WO2001001558A1 Method for setting a polyphase electric stepper motor |
01/03/2001 | EP1064712A1 Multi-phase transverse flux machine |
01/03/2001 | EP0983628A4 Brushless synchronous rotary electrical machine |
01/02/2001 | US6169644 Read/write device |
12/12/2000 | US6160330 Three-phase stepping motor and driving method therefor |
12/06/2000 | EP1058372A2 Motor utilizing basic factor and having generator function |
12/06/2000 | CN2409706Y Double set direction change permanent magnet stepping motor |
12/05/2000 | US6157107 Motor with magnetic stator poles inside and outside the rotor magnet |
12/05/2000 | US6157103 Step motor |
11/30/2000 | WO2000072429A1 Step motor with double coil in a plane |
11/30/2000 | CA2374535A1 Step motor with double coil in a plane |
11/28/2000 | US6154013 Electric motor or generator |
11/28/2000 | US6153953 Multi-phase PM-type stepping motor |
11/28/2000 | US6153952 DC torque motor, and drive control apparatus and throttle valve control apparatus using DC torque motor |
11/22/2000 | EP1053587A1 Hybrid stepper motor having optimized torque density |
11/22/2000 | EP1053452A1 Shaft drive |
11/21/2000 | US6150750 Piezoelectric linear step motor |
11/16/2000 | WO2000069046A1 Brushless synchronous rotary electrical machine |
11/08/2000 | CN1272713A Electric motor |
11/07/2000 | US6144120 Stepping motor for stable control of position of driven body |
10/25/2000 | CN2403172Y Permanent-magnet compound single-phase step-by-step motor |
10/18/2000 | CN2402055Y Step motor for quartzcrystal clock |
10/17/2000 | US6133655 Claw-pole stepping motor with rotor including vibration reducing magnet |
10/12/2000 | WO2000060728A1 Rotating electromagnetic motor |
10/12/2000 | WO2000022715A9 Switched reluctance motor |
10/04/2000 | EP1041698A2 Motor |
10/04/2000 | CN2399887Y Surrounding-current permanent-magnet electromachine with axial magnetic field |
09/27/2000 | CN1267949A 步进电机 Stepper motor |
09/27/2000 | CN1267948A Electromechanical single-phase stepped motor |
09/26/2000 | US6124651 Method for driving stepping motor of multiphase hybrid type |
09/19/2000 | US6121712 Three-phase permanent magnet cascade claw type stepping motor |
09/05/2000 | US6114789 Switched reluctance motor |
09/05/2000 | US6114782 Two-phase hybrid step motor driven by three-phase driver |
08/31/2000 | DE19933511A1 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 |
08/31/2000 | DE10008239A1 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 |
08/30/2000 | CN2394368Y Step motor stator with multiple poles |
08/23/2000 | CN1055801C Method of manufacturing stator for stepping motor |
08/22/2000 | US6108488 Speed control system for repulsion motor |
08/22/2000 | US6108279 Stepping motor control device and method thereof and timepiece |
08/10/2000 | WO2000046909A1 Rotary actuating drive and rotary switch |
08/10/2000 | DE19904469A1 Dreh-Stellantrieb und Drehschalter Rotary actuator and rotary switch |
08/10/2000 | CA2360880A1 Rotary actuating drive and rotary switch |
08/09/2000 | CN1262807A Stepping motor, printing device using it or paper feeding device, and printer |
08/09/2000 | CN1262548A Permanent-magnet type stepping motor |
08/08/2000 | US6100620 High frequency synchronous rotary electrical machine |
08/08/2000 | US6100612 Stepping motor |
08/03/2000 | WO2000045501A1 Permanent magnet electric machine with energy saving control |
08/02/2000 | EP1024578A1 Magnet device with integrally formed attachment |
08/02/2000 | CN1261992A Electrical machine with soft-mangetic teeth and a method for producing same |
07/26/2000 | CN1261474A Motor |
07/18/2000 | US6091900 Lens barrel and image pickup apparatus |
07/12/2000 | EP1018797A2 Stepping motor |
07/12/2000 | EP1018796A2 Stepping motor |
07/12/2000 | CN1259790A Stepping motor |
07/12/2000 | CN1054482C Electromagnetic motor |
07/05/2000 | CN1258955A Electric motor |
06/27/2000 | US6081058 Motor structure having a permanent magnet motor with grooves to reduce torque ripples |
06/20/2000 | US6078122 Reluctance machine with fractional pitch winding and drive therefore |
06/20/2000 | CA2121357C Rotary electric machine |
06/14/2000 | EP1009092A2 Toroidal core type actuator |
06/14/2000 | EP1009091A2 Actuator device with valve |
06/14/2000 | CN1256549A Quasi-synchronous reluctance motor |
05/30/2000 | US6069466 Method for driving opening/closing member |
05/17/2000 | EP1000458A1 Electrical machine with soft-magnetic teeth and a method for producing same |
05/10/2000 | EP0998781A1 Claw pole motor |
05/09/2000 | US6060809 Staggered pole switched reluctance motor |
05/09/2000 | US6060806 Electric motor |
05/09/2000 | US6060800 Motor structure |
05/04/2000 | WO2000025409A1 Switched reluctance motor |
05/02/2000 | US6057613 Hybrid stepper motor having optimized torque density |
04/20/2000 | WO2000022715A1 Switched reluctance motor |
04/19/2000 | EP0878047A4 Staggered pole switched reluctance motor |
04/19/2000 | CN2375028Y Single pulse fixed angle electrical machinery |
04/18/2000 | US6051903 Switched reluctance motor |
04/18/2000 | US6051898 Stepping motor having external rotor and electromagnetic-combined-permanent-magnet stator |
04/12/2000 | EP0993102A1 Stepping motor, printing device using it or paper feeding device, and printer |
04/11/2000 | US6049197 Electric motor or generator |
04/11/2000 | US6049187 Speed control for brushless repulsion motor |
04/11/2000 | US6049151 Linear motor structure |