| 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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| 01/11/1989 | CN2030732U Electrically-poked quartz clock |
| 01/03/1989 | US4795930 Stepping motor coil core and stator assembly for a timepiece |
| 12/28/1988 | EP0296691A1 Electro-mechanical timepiece with stepper motor |
| 12/27/1988 | US4794292 Stepping motor with divided stator pole pieces |
| 12/27/1988 | US4794286 Variable reluctance stepper motor |
| 12/27/1988 | US4793199 Electromagnetic precision rotary drive |
| 12/20/1988 | US4792709 Winding for operation of a three-phase stepping motor from a two-phase drive |
| 11/23/1988 | CN87103433A Thin-desk permanent-magnet step motor |
| 11/02/1988 | EP0289292A2 Variable reluctance motor |
| 11/02/1988 | EP0289135A1 Bi-compliant rotor stepper motor for an actuator in disc drives |
| 11/02/1988 | EP0289043A1 Stepping motor |
| 11/01/1988 | US4782255 Stepping motor and magnetic disc reproducing apparatus using the same |
| 10/26/1988 | EP0288050A2 Low-speed high-torque motor |
| 10/26/1988 | EP0287945A1 Motor device comprising at least one coil, and process for manufacturing this coil |
| 10/25/1988 | US4779592 Stepping motor and intake control apparatus therewith |
| 10/20/1988 | DE3810883A1 Picture generating device having a permanent-magnet stepper motor |
| 10/05/1988 | CN87102251A Stepping motor and frame plate assembly for wristwatch |
| 09/27/1988 | US4774612 Carriage moving device |
| 09/21/1988 | EP0283234A2 Inertia damper |
| 09/20/1988 | US4772841 Stepping motor and driving method thereof |
| 09/20/1988 | US4772815 Variable refluctance position transducer |
| 09/20/1988 | US4772257 Adjusting the working pressure of a surgically-implanted valve |
| 08/30/1988 | US4767958 Stepping motor actuator with two interposed pole tooth pairs |
| 08/30/1988 | CA1241246A1 Surgically-implantable device susceptible of noninvasive magnetic adjustment |
| 08/16/1988 | US4764697 Flat hybrid stepper or synchronous motor |
| 08/16/1988 | US4764696 Step motor |
| 08/09/1988 | US4763150 Motor-built-in photographic lens |
| 08/09/1988 | US4763034 Magnetically enhanced stepping motor |
| 08/02/1988 | US4761590 Electric motor |
| 07/20/1988 | EP0275197A2 Stepping motor |
| 07/19/1988 | US4758752 High-speed hybrid step motor |
| 07/13/1988 | CN87105648A Bipolar stepping motor rotor with drive pinion and method of manufacture |
| 07/12/1988 | CA1239164A1 Industrial robot having direct coaxial motor drive |
| 07/06/1988 | EP0273482A1 Driving device for a small electrically driven apparatus and method for assembling the driving device |
| 07/05/1988 | US4755703 Electric motor |
| 06/29/1988 | EP0187740B1 Single-phase motor with magnetized rotor |
| 06/28/1988 | US4754183 Stepping or reversible motor |
| 06/28/1988 | US4754178 Stepper motor |
| 06/15/1988 | EP0271030A2 Stepping motor and intake control apparatus therewith |
| 06/14/1988 | US4751411 Step motor |
| 05/17/1988 | US4745312 Stepping motor |
| 05/11/1988 | DE3735732A1 Stepping motor with a permanent-magnet phase |
| 05/11/1988 | CN87207887U Disk type permanent-magnet step-motor |
| 05/10/1988 | US4743848 Method of testing a stepping motor |
| 04/27/1988 | EP0265195A2 Electric motors |
| 04/27/1988 | CN87106108A Electromechanical actuator |
| 04/19/1988 | US4739201 Means to reduce harmonic torque in electromagnetic machines |
| 04/12/1988 | CA1235173A1 Stepping motor of hybrid multi-phase type and device for its control |
| 03/24/1988 | WO1988002194A1 Pulse motor |
| 03/22/1988 | US4733120 Flat type stepping motor |
| 03/22/1988 | US4733114 Stepping motor |
| 03/22/1988 | US4733113 Winding for operation of a three-phase stepping motor from a two-phase drive |
| 03/15/1988 | US4731555 Lead wire layout in coil units for stepping motor |
| 03/10/1988 | DE3728868A1 Small electric motor |
| 03/10/1988 | DE3630559A1 Small electric motor, especially a claw-pole stepping motor |
| 03/09/1988 | CN86105083A Responsive stepper motor |
| 03/02/1988 | EP0257196A2 Bipolar stepping motor rotor with drive pinion and method of manufacture |
| 03/01/1988 | US4728830 Electric motor with magnetic enhancement |
| 02/25/1988 | DE3723979A1 Reluctance motor |
| 02/24/1988 | EP0256769A1 Electromechanical actuator |
| 02/17/1988 | CN86105770A Seitching-type magnetoresistance motor with four phase four line connection |
| 02/16/1988 | US4725749 Stepping motor and frame plate assembly for a wristwatch movement |
| 02/10/1988 | EP0255736A1 Automatic tool exchange apparatus |
| 01/27/1988 | EP0254586A2 Means to reduce harmonic torque in electromagnetic machines |
| 01/27/1988 | EP0254085A2 Method of testing a stepping motor |
| 01/19/1988 | US4720644 Lavet stepping motor with U-shaped coil core |
| 01/13/1988 | CN86108651A Stator for watch-stepping motor |
| 01/07/1988 | EP0252011A1 Stepmotor drive with feedback |
| 01/07/1988 | EP0251350A2 Electric motor |
| 01/05/1988 | US4717898 Power combiner, polarizer and structure including a waveguide section rotated by a stepper motor arrangement |
| 12/22/1987 | US4714854 Electric motor with a multipolar permanent magnet rotor |
| 12/22/1987 | US4714850 Stepping motor |
| 12/17/1987 | WO1987007784A1 Magnetically enhanced variable reluctance motor systems |
| 12/15/1987 | US4713570 Magnetically enhanced variable reluctance motor systems |
| 12/15/1987 | US4713565 Single-phase motor with a magnetized rotor |
| 12/09/1987 | EP0248472A1 Display provided with stepping motors |
| 12/08/1987 | US4712028 Magnetically assisted stepping motor |
| 12/05/1987 | CN86208830U Three-pole-piece stepmotor |
| 11/25/1987 | EP0246742A1 Device for damping the oscillations of a stepping motor |
| 11/24/1987 | US4709199 Velocity feedback control of step motors |
| 11/19/1987 | EP0151158B1 Multiphase motor with magnetized rotor having n pairs of poles with axial magnetization |
| 11/18/1987 | CN86103245A Expanded type of permanent-magnet step motor |
| 10/28/1987 | EP0242673A2 Microstepping motor harmonic suppression |
| 10/27/1987 | US4703243 Stepping motor harmonic suppression |
| 10/27/1987 | US4703208 Wristwatch stepping motor |
| 10/21/1987 | CN85106932A Pulse width modulation type motor |
| 10/13/1987 | US4700189 Linear resolver |
| 10/13/1987 | US4700091 Bipolar stepping motor rotor with drive pinion and method of manufacture |
| 10/07/1987 | EP0240204A2 Variable reluctance stepper motor |
| 10/06/1987 | US4698710 Stepping motor for a belt drive head travelling mechanism for a floppy disk drive |
| 09/30/1987 | EP0238934A2 Stepping motor and frame plate assembly for a wristwatch movement |
| 09/23/1987 | EP0238317A2 An electric motor |
| 09/23/1987 | EP0237778A2 Pulse motor and driving method thereof |
| 09/10/1987 | DE3607452A1 Stator for an electric motor |
| 08/18/1987 | US4687981 Stepping motor |
| 08/11/1987 | US4686398 One-phase stepping motor |
| 08/05/1987 | EP0230605A1 Stepping motor |
| 08/04/1987 | US4684855 Permanent magnet direct current motor apparatus |
| 08/04/1987 | US4684262 Electronic timepiece with analog display comprising a seconds indicator member |
| 07/29/1987 | EP0230134A2 System for driving drum |