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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07/29/1987 | CN86100304A Method for obtaining small step angle, high stable state accuracy and large torque |
07/28/1987 | US4683391 Magnetically floating actuator having angular positioning function |
07/15/1987 | EP0229013A2 Vibration damping apparatus for pulse motor |
07/15/1987 | CN86200872U Tray-type beak-like permanent magnet stepper motor |
07/14/1987 | US4680494 Multiphase motor with facially magnetized rotor having N/2 pairs of poles per face |
07/14/1987 | US4679313 Method of making a servo motor with high energy product magnets |
07/07/1987 | US4678346 Stepping motor for a clock |
06/23/1987 | US4675564 Permanent magnet type stepping motor |
06/09/1987 | US4672247 Synchronous or stepping motor with equal-torque stepping |
05/26/1987 | CA1222298A1 Reactance-commutated high resolution servo motor system |
05/13/1987 | EP0221228A1 Electric drive |
05/12/1987 | US4665335 Small-sized synchronous motor with specific stator coil length to stator coil radius ratios |
05/12/1987 | US4665330 Step motor particularly for electronic timepieces |
04/22/1987 | EP0219299A2 Stepping motor |
04/21/1987 | US4659952 Motor air gap bearing arrangement |
04/15/1987 | EP0218522A1 Permanent-magnet synchronous machine with a plurality of air gaps |
04/15/1987 | EP0218521A1 Variable-reluctance multiphase electric motor |
03/17/1987 | US4650159 Flow control device |
03/03/1987 | US4647802 Variable reluctance motor with reduced torque ripple |
02/24/1987 | US4645961 Dynamoelectric machine having a large magnetic gap and flexible printed circuit phase winding |
02/24/1987 | US4645409 Outer arm assembly for industrial robot |
02/19/1987 | DE3536238A1 Schrittmotor Stepper motor |
02/17/1987 | US4644246 Electric power supply system for portable miniature size power consuming devices |
02/12/1987 | WO1987000986A1 Stepping motor |
02/10/1987 | US4642494 Means to improve performance of electric motors |
01/20/1987 | US4638195 Multiple-pole stepping motor |
01/15/1987 | DE3523806A1 Method for driving a 5-phase stepping motor |
01/14/1987 | EP0208125A1 Automatic tool exchange system for machine tools |
01/14/1987 | EP0208124A2 Improvement in stepper motors |
01/14/1987 | EP0208123A1 Printed-circuit motor |
01/13/1987 | US4636668 Compact-sized permanent magnet type stepping motor |
01/13/1987 | US4636138 Industrial robot |
01/07/1987 | EP0207298A1 Stepper motor |
01/07/1987 | CN86202991U Developed permanent magnet stepper motor |
01/06/1987 | US4634948 Stepping motor winding for bipolar drive |
01/06/1987 | US4634912 Electromechanical transducer having a self-inductance cancelling coil assembly |
01/06/1987 | US4634907 Single phase stepping motor with improved pole arrangement |
01/06/1987 | US4634906 Multiphase motor with magnetized rotor having N pairs of poles with axial magnetization |
12/30/1986 | US4633156 Stepping motor assembly |
12/30/1986 | EP0205989A2 Power transmission and braking system |
12/30/1986 | EP0205988A1 Improvements in machine tools |
12/17/1986 | EP0205027A2 Variable reluctance motor with reduced torque ripple |
12/16/1986 | US4629924 Multiphase motor with magnetized rotor having N/2 pairs of poles at its periphery |
12/16/1986 | US4629916 Method and apparatus for harmonics suppression in motor systems |
12/02/1986 | US4626719 Stepping motor having rotor with axially spaced sections |
11/26/1986 | EP0202337A1 Stepping motor |
11/20/1986 | EP0201793A2 Motor |
11/18/1986 | US4623809 Stepper motor housing and pole assembly |
11/07/1986 | EP0183792A4 Magnetically assisted stepping motor. |
10/08/1986 | EP0196457A1 Single-phase stepping motor |
10/07/1986 | US4615691 Surgically-implantable stepping motor |
09/10/1986 | EP0193929A2 Method for making a servomotor |
08/19/1986 | US4607204 Five-phase stepping motor |
08/19/1986 | US4607197 Linear and rotary actuator |
07/29/1986 | US4602423 Method of making a stator for an electric multiphase motor |
07/23/1986 | EP0187740A1 Single-phase motor with magnetized rotor. |
07/22/1986 | US4601564 Lens barrel having motor |
07/22/1986 | CA1208273A1 Reluctance motor |
07/15/1986 | US4600871 Multi-directional drive type electromagnetic position control apparatus |
07/01/1986 | US4598328 Mechanical damper for disk drives having band drive actuators |
06/18/1986 | EP0184647A1 Single-phase stepping motor |
06/17/1986 | US4595871 Stepping motor of hybrid multi-phase type and device for its control |
06/17/1986 | US4595390 Magnetically-adjustable cerebrospinal fluid shunt valve |
06/11/1986 | EP0183854A1 Stepping motor |
06/11/1986 | EP0183792A1 Magnetically assisted stepping motor. |
06/11/1986 | EP0183710A1 Permanent magnet stepping motor apparatus |
06/03/1986 | US4593216 Rotary stepping motor having improved construction |
05/22/1986 | WO1986003071A1 Stepping motor |
05/20/1986 | US4589753 Lens mounting having a reversible motor for controlling focusing and aperture setting of a camera |
05/13/1986 | US4588913 Stepping motor linear actuator with internal clutch |
04/22/1986 | US4584495 Performance step motor |
04/02/1986 | EP0175978A1 Motor |
03/05/1986 | EP0173389A1 Synchronous motor |
03/05/1986 | EP0173388A1 Synchronous motor |
02/26/1986 | EP0172603A1 Outer arm assembly for industrial robot |
02/19/1986 | EP0171483A1 Electromechanical transducer |
02/18/1986 | US4571516 Electromagnetic motor |
02/12/1986 | EP0170742A1 Permanent magnet type stepping motor |
02/12/1986 | EP0170741A1 Stepping motor with a rotor |
02/05/1986 | EP0170303A1 An electric power supply system for portable miniature size power consuming devices |
01/30/1986 | WO1986000765A1 Single-phase motor with magnetized rotor |
01/21/1986 | US4565955 Synchronous motor device for timepiece |
01/07/1986 | US4563605 Damping device for rotary stepping motor |
01/07/1986 | US4563604 Electromagnetic stepping motor with two coupled rotors |
01/07/1986 | US4563602 Permanent magnet type stepping motor |
12/19/1985 | WO1985005741A1 Stepping motor |
12/17/1985 | US4559461 Stepping motor |
12/17/1985 | CA1198144A1 Method of supporting the rotor of a stepper motor, and stepper motor including such support |
12/10/1985 | US4558244 Micro stepping motor |
12/05/1985 | WO1985005507A1 Magnetically assisted stepping motor |
12/04/1985 | EP0162966A2 Electric stepper motor |
11/26/1985 | CA1197278A1 Stepper motor having rotor with limited axial movement |
11/21/1985 | EP0161582A1 Stepping motor assembly |
11/19/1985 | CA1196947A1 Self starting reluctance motor |
11/12/1985 | US4553080 Position transducer |
11/12/1985 | US4552505 Industrial robot having direct coaxial motor drive |
11/05/1985 | US4551708 Position sensing device |
11/05/1985 | CA1196368A1 High torque robot motor |
10/08/1985 | US4546278 Winding for subjecting the rotor of a stepping motor to two magnetic fields symmetric to two perpendicular axes by energization of one winding |
09/26/1985 | WO1985004269A1 Permanent magnet stepping motor apparatus |