| Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141) |
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| 11/18/1987 | CN86103136A Electric generator for bicycle |
| 11/11/1987 | EP0128961B1 Synchronous motor |
| 11/04/1987 | EP0243425A1 Current converter-fed synchronous machine with permanent magnet excitation. |
| 11/03/1987 | US4704555 Improved disc rotor assembly |
| 10/27/1987 | US4703212 Direct-current motor |
| 10/22/1987 | DE3613282A1 Vane-type pump |
| 10/20/1987 | US4701656 Electromechanical device with slotted stator |
| 10/13/1987 | USRE32520 Magnetic probe |
| 10/13/1987 | US4700098 D.C. motors with unequal pole spacing |
| 10/13/1987 | US4700097 Synchronous machine |
| 10/07/1987 | EP0240069A2 Device for compensating variations of the driving moment of a one-phase synchronous motor |
| 10/06/1987 | US4698542 Brushless direct current motor system |
| 09/30/1987 | EP0239261A2 Improvements in or relating to drives for clothes washing machines |
| 09/30/1987 | EP0238660A1 Hybrid generating system |
| 09/30/1987 | CN86108648A Lightweight high power electromagnetic transducer |
| 09/24/1987 | WO1987005754A1 Brushless electric motor |
| 09/24/1987 | WO1987005753A1 Rotor for polyphase permanent magnet machines |
| 09/24/1987 | WO1987005575A1 Lighting device for vehicle |
| 09/24/1987 | DE3609750A1 Combined synchronous/asynchronous machine |
| 09/24/1987 | DE3609351A1 Buerstenloser elektrischer motor Brushless electric motor |
| 09/23/1987 | EP0238317A2 An electric motor |
| 09/22/1987 | US4695419 Embedding pole teeth in a nonmagnetic resin |
| 09/22/1987 | CA1227243A1 Method for the quantitative determination of calcium in biological fluids through direct potentiometry |
| 09/15/1987 | US4693580 Motor |
| 09/10/1987 | DE3607452A1 Stator for an electric motor |
| 09/09/1987 | CN86101262A Permanent-magnet-field generating compressor set regulated by use of direct current |
| 09/08/1987 | US4692754 Rotation indicating device |
| 09/01/1987 | US4691132 Synchronous motor with two-pole permanent-magnet soft-magnetic-core rotor |
| 09/01/1987 | US4691119 Permanent magnet alternator power generation system |
| 08/27/1987 | DE3700774A1 Permanent-magnet-excited dynamo-electric machine having a slotted laminated core |
| 08/26/1987 | EP0233738A1 Dynamo electric machines |
| 08/11/1987 | US4686398 One-phase stepping motor |
| 08/06/1987 | DE3602687A1 Permanent magnet synchronous machine with transverse flux paths |
| 08/05/1987 | EP0230639A2 Lightweight high power electromagnetic transducer |
| 08/04/1987 | US4684873 Hybrid generating system |
| 08/04/1987 | US4684840 Synchronous motor having a permanent-magnet modular rotor |
| 07/28/1987 | US4683388 Compound induction electric rotating machine |
| 07/23/1987 | DE3601511A1 Combined ignition and electrical power supply device for internal combustion engines |
| 07/22/1987 | EP0157815B1 Alternating current synchronous servomotor |
| 07/21/1987 | US4682067 Synchronous electric motor having a disc-shaped permanent magnet rotor |
| 07/15/1987 | EP0228873A1 Rotary electrical machine |
| 07/15/1987 | EP0228872A1 Permanent magnet rotor |
| 07/14/1987 | US4680514 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 |
| 07/14/1987 | CA1224235A1 Brushless d.c. dynamoelectric machine having ferrite material magnetic circuit |
| 07/07/1987 | US4678978 Quieting circuits for permanent magnet synchronous motors |
| 07/07/1987 | US4678346 Stepping motor for a clock |
| 07/02/1987 | WO1987004022A1 Dual permanent magnet generator |
| 07/01/1987 | EP0226586A1 A synchronous servomotor. |
| 07/01/1987 | CN86108448A Permanent magnet exciting synchronous electric motor |
| 06/30/1987 | US4677328 Generator for use on bicycle |
| 06/24/1987 | EP0225947A1 Toroidal generator and motor |
| 06/19/1987 | DE3543809A1 Permanentmagneterregte synchronmaschine Permanent-magnet synchronous machine |
| 06/18/1987 | WO1987003751A1 Single stage, di- or tetraphase synchronous electric motor |
| 06/18/1987 | WO1987003750A1 Synchronous electric motor with magnetized rotor and method for fabricating said motor |
| 06/18/1987 | WO1987003648A1 Synchronous machine with permanent magnet excitation |
| 06/16/1987 | EP0225616A1 Electric motor |
| 06/16/1987 | EP0225358A1 Hydraulic microturbolalternator |
| 06/10/1987 | EP0225132A1 Stator for electrical machine |
| 06/09/1987 | US4672253 Permanent magnet electrical machine with reduced cogging |
| 06/04/1987 | DE3542542A1 Disc drive |
| 05/27/1987 | EP0223678A1 Electronically commutated DC motor |
| 05/19/1987 | US4667122 Tachogenerator for speed control of electric motors |
| 05/13/1987 | EP0221628A2 Variant-pole electric motor |
| 05/12/1987 | US4665335 Small-sized synchronous motor with specific stator coil length to stator coil radius ratios |
| 05/12/1987 | US4665332 Electric generator assembly for a projectile |
| 05/12/1987 | US4665330 Step motor particularly for electronic timepieces |
| 05/05/1987 | US4663581 Voltage regulated permanent magnet generator system |
| 04/29/1987 | CN85106425A 转矩电动机 Torque motor |
| 04/28/1987 | US4661736 Rotor for a synchronous motor |
| 04/23/1987 | WO1987002525A1 Current converter-fed synchronous machine with permanent magnet excitation |
| 04/23/1987 | DE3536538A1 Transverse flow machine having permanent excitation |
| 04/21/1987 | US4659953 Magnetic structure for synchro and tachometer |
| 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 |
| 04/14/1987 | US4658312 Disk storage drive |
| 04/14/1987 | US4658166 Synchronous electric motor with disc-shaped permanent magnet rotor |
| 04/09/1987 | WO1987002199A1 Hybrid generating system |
| 04/08/1987 | EP0216998A1 Brushless induction machine |
| 04/07/1987 | US4656381 Magnetic pole structure having aternate poles extending from a point of bases, for a rotary electric machine |
| 04/07/1987 | US4656379 Electrical machine |
| 04/01/1987 | EP0216282A2 Bicycle lighting set |
| 04/01/1987 | EP0216024A2 External magnet flywheel mounting |
| 03/31/1987 | US4654577 Permanent magnet rotary electrical machines |
| 03/31/1987 | US4654551 Permanent magnet excited alternator compressor with brushless DC control |
| 03/26/1987 | DE3533750C1 Explosion-proof and/or flameproof electrical power supply unit having an alternator which is driven by compressed air |
| 03/25/1987 | EP0215589A1 High-speed rotary electric machine |
| 03/19/1987 | DE3532510A1 Three-phase tachogenerator |
| 03/18/1987 | EP0214911A1 Torque motor with a hydraulic potentiometer for a servo distributor |
| 03/18/1987 | EP0214385A2 Brushless induction machine |
| 03/18/1987 | CN85106443A Rotating electric motor |
| 03/18/1987 | CN85106367A Small-sized synchronous motor |
| 03/17/1987 | US4651040 For pump drives |
| 03/10/1987 | US4649306 Direct drive motor having adjustable bearing for spindle |
| 03/09/1987 | EP0198903A4 Voltage regulated permanent magnet generator system. |
| 03/04/1987 | CN86202281U Generator with lamination armature internel-combustion engine |
| 02/25/1987 | CN86105376A High-speed motor generator |
| 02/25/1987 | CN85105975A Rotating electric motor |