| Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141) |
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| 11/01/1988 | US4782259 Frequency generator and motor with the same |
| 11/01/1988 | US4782257 Dual rotor magnet machine |
| 11/01/1988 | US4782256 Electricity generator for wheel detection |
| 10/26/1988 | EP0287937A2 Tachometer generator for electric machines |
| 10/25/1988 | US4780659 High-power, high-voltage direct current power source |
| 10/25/1988 | US4780634 Alternating-current electrical generators |
| 10/18/1988 | US4779165 Disk storage drive |
| 10/11/1988 | US4777394 Miniature generator |
| 10/06/1988 | WO1988007782A1 Electric generator |
| 10/04/1988 | US4775813 Electric motor having formed stator sections with coplanar teeth |
| 09/27/1988 | US4774428 Compact three-phase permanent magnet rotary machine having low vibration and high performance |
| 09/27/1988 | US4773828 Blower |
| 09/21/1988 | EP0282876A2 Method for winding the coils for an air gap motor |
| 09/21/1988 | EP0282757A1 Driving device comprising a converter and a synchronous motor with permanent-magnet excitation fed by said converter |
| 09/21/1988 | CN88101318A Structure of flat type brushless dc motor |
| 09/06/1988 | US4769567 Brushless DC motor with cogging reduction |
| 08/25/1988 | WO1988006375A1 Transverse flow machine in a collector arrangement |
| 08/25/1988 | WO1988006373A1 Method of inserting rotor of motor and motor suitable therefor |
| 08/24/1988 | EP0279701A2 Homopole type AC generator |
| 08/23/1988 | US4766362 Regulatable permanent magnet alternator |
| 08/17/1988 | EP0277956A1 Rotor for polyphase permanent magnet machines |
| 08/16/1988 | US4764698 A.C. electric motors having a stator forming orthogonal magnetic paths |
| 08/16/1988 | US4764697 Flat hybrid stepper or synchronous motor |
| 08/10/1988 | CN87210371U Ac flywheel magneto generator |
| 07/28/1988 | WO1988004883A3 Generator system with integral permanent magnet generator exciter |
| 07/25/1988 | EP0277956A4 Rotor for polyphase permanent magnet machines. |
| 07/19/1988 | US4758756 Vernier-type electrodynamic machine |
| 07/19/1988 | US4758753 A.C. electric motors having a stator forming orthogonal magnetic paths |
| 07/14/1988 | WO1988004883A2 Generator system with integral permanent magnet generator exciter |
| 07/13/1988 | EP0274150A2 Single-phase synchronous motor with a bipolar permanent-magnet rotor and with an eddy current intermediate rotor |
| 07/12/1988 | US4757225 Dual stack tachometer/generator |
| 07/12/1988 | US4757224 Full flux reversal variable reluctance machine |
| 07/12/1988 | US4757220 Electrodynamic vernier machine |
| 07/06/1988 | EP0273483A1 Driving device for a small household appliance |
| 07/06/1988 | EP0273482A1 Driving device for a small electrically driven apparatus and method for assembling the driving device |
| 07/06/1988 | CN87106496A Full flux reversal variable reluctance machine |
| 07/05/1988 | US4755736 Generator system with integral permanent magnet generator exciter |
| 07/05/1988 | US4755703 Electric motor |
| 07/05/1988 | US4755701 Brushless motor having a frequency signal generator and a pulse signal generator |
| 06/29/1988 | EP0187740B1 Single-phase motor with magnetized rotor |
| 06/28/1988 | US4754154 Electric generator for vehicles |
| 06/22/1988 | EP0271637A2 Inductive sensor |
| 06/21/1988 | US4752707 Three-phase, one-third pitch motor |
| 06/21/1988 | US4752706 Rolling magnetic friction electricity generator |
| 06/15/1988 | CN87207409U Generator for bicycle illumination |
| 06/15/1988 | CN87206678U Dish shape coreless ac permanent magnetic generator |
| 06/14/1988 | US4751416 Synchronous servomotor |
| 06/14/1988 | US4750872 Centrifugal pump with damped motor connection |
| 06/09/1988 | DE3640609A1 Permanent-magnet rotor for a single-phase synchronous motor |
| 06/01/1988 | EP0269067A2 Regulatable permanent magnet alternator |
| 05/31/1988 | US4748535 Method of magnetizing rotor of motor |
| 05/31/1988 | US4748361 Permanent magnet electric motor |
| 05/31/1988 | US4748360 Rotor for a synchronous motor |
| 05/24/1988 | US4746825 Alternator core attachment |
| 05/17/1988 | US4745318 Induction motor with secondary rotor |
| 05/11/1988 | EP0266862A1 Improved brushless D.C. dynamoelectric machine |
| 05/03/1988 | US4742258 Driven rotary shaft system using permanent magnets |
| 04/27/1988 | EP0265364A1 Permanent magnet assembly and method of making same |
| 04/26/1988 | USRE32654 Wide air gap permanent magnet motors |
| 04/26/1988 | US4740733 Autosynchronous motor comprising a device for determining the position of the rotor relative to the stator, and method of starting such motor |
| 04/26/1988 | US4740725 Hydraulic microturboalternator |
| 04/20/1988 | CN87210573U Permanent-magnet ac generator |
| 03/31/1988 | DE3632645A1 Underwater motor |
| 03/30/1988 | EP0261953A2 Full flux reversal variable reluctance machine |
| 03/30/1988 | CN87105601A Electric machines |
| 03/23/1988 | EP0260317A1 Lighting device for vehicle. |
| 03/15/1988 | US4731554 Low profile ring-shaped motor |
| 03/10/1988 | DE3630559A1 Small electric motor, especially a claw-pole stepping motor |
| 03/02/1988 | EP0257705A1 Small electric domestic appliance with a rotating knife |
| 03/01/1988 | US4728841 Dual permanent magnet generator construction |
| 02/18/1988 | DE3641743C1 Single-phase synchronous motor having an eddy-current intermediate rotor |
| 02/17/1988 | CN87104952A Magnetic health device |
| 02/16/1988 | US4725750 Permanent magnet rotary machine |
| 02/11/1988 | DE3626149A1 Cycle dynamo |
| 02/09/1988 | US4724368 Multiple phase electronically commutated torque motor |
| 02/04/1988 | DE3625994A1 Generator for converting mechanical energy into electrical energy |
| 01/27/1988 | EP0254347A1 Electric machine |
| 01/25/1988 | EP0238660A4 Hybrid generating system. |
| 01/20/1988 | EP0253398A1 Magnetic health device |
| 01/12/1988 | US4719380 Electric generator for inducing current in the field coil |
| 01/07/1988 | EP0250551A1 Dual permanent magnet generator |
| 12/30/1987 | CN87203101U Permanent-magnet separate type synchronous motor |
| 12/22/1987 | US4714854 Electric motor with a multipolar permanent magnet rotor |
| 12/22/1987 | US4714853 Low profile electric motor |
| 12/22/1987 | US4714851 Single-phase synchronous motor comprising a two-pole permanent-magnet rotor |
| 12/22/1987 | US4714850 Stepping motor |
| 12/17/1987 | WO1987007785A1 Dual permanent magnet generator |
| 12/17/1987 | WO1987007784A1 Magnetically enhanced variable reluctance motor systems |
| 12/16/1987 | EP0248798A1 Synchronous electric motor with magnetized rotor and method for fabricating said motor. |
| 12/15/1987 | US4713570 Magnetically enhanced variable reluctance motor systems |
| 12/15/1987 | US4713569 Low cogging motor |
| 12/15/1987 | US4713565 Single-phase motor with a magnetized rotor |
| 12/08/1987 | US4712035 Salient pole core and salient pole electronically commutated motor |
| 12/05/1987 | CN86207143U Hand permanent-magnet generator with asymmetric and unhomogeneous gap |
| 12/01/1987 | US4710667 Brushless D.C. dynamoelectric machine with decreased magnitude of pulsations of air gap flux |
| 12/01/1987 | US4710659 Resin molded rotor for a magneto generator |
| 11/25/1987 | EP0246410A2 Induction motor |
| 11/24/1987 | US4709180 Toothless stator construction for electrical machines |
| 11/24/1987 | US4709179 Permanent-magnet six-pole synchronous electrodynamic machine |
| 11/19/1987 | EP0151158B1 Multiphase motor with magnetized rotor having n pairs of poles with axial magnetization |