Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091) |
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05/03/1989 | EP0313764A2 Energy conversion device |
04/26/1989 | EP0313046A1 Motor control apparatus |
04/25/1989 | US4825114 Assembly of axial fan motor |
04/19/1989 | EP0311688A1 Starter/charger of engine |
04/18/1989 | US4823034 Brushless DC motor with tolerance compensation spring |
04/11/1989 | US4820951 Multiphase small size brushless DC motor |
04/11/1989 | US4820949 Electrically powered apparatus |
04/06/1989 | DE3831551A1 Printed circuit board |
04/05/1989 | EP0310426A2 Turbocharger with rotary electric machine |
04/05/1989 | EP0310035A2 A stator for use in a brushless motor |
04/04/1989 | US4818922 Optical commutation for permanent magnet motors |
04/04/1989 | US4818908 Brushless motor having phase advance |
04/04/1989 | US4818907 Brushless motor for driving magnetic disks |
04/04/1989 | US4818905 Slotless and toothless wound stators |
04/04/1989 | CA1252143A1 Motor-compressor unit |
03/30/1989 | DE3730640A1 Method for producing an external rotor motor having a printed circuit board which is connected to the winding ends of the stator winding |
03/29/1989 | EP0308577A2 12-step commutation device for an electric motor |
03/29/1989 | CN2035155U Light-operated current-commutating brushless dc motor |
03/23/1989 | WO1989002671A1 A motor or alternator |
03/23/1989 | WO1989002670A1 Armature for dc motor |
03/22/1989 | EP0307706A1 Array of permanent magnets |
03/21/1989 | US4814676 Self-starting brushless D.C. motor |
03/21/1989 | US4814652 Disk drive motor with thermally matched parts |
03/21/1989 | US4813248 Drives for clothes washing machines |
03/15/1989 | CN2034346U Electromagnetic energy-saving spinner |
03/14/1989 | US4812692 Motor |
03/08/1989 | EP0305480A1 In-spindle motor assembly for disk drive and method for fabricating the same. |
03/08/1989 | EP0305431A1 Improvements relating to d.c. motors |
02/21/1989 | US4806813 Motor |
02/21/1989 | US4806808 Printed circuit board for external rotor motor with recess for Hall transducers |
02/21/1989 | US4806717 Drive for a laundry machine |
02/16/1989 | DE3726413A1 Electronically commutated DC motor having a fixing device for fixing the permanent magnets |
02/14/1989 | US4804873 Unidirectional brushless motor |
02/07/1989 | US4803408 Brushless DC motor system with optically scannable member for commutation |
02/07/1989 | US4803389 Stepping motor, method of driving the same and drive circuit therefor |
02/02/1989 | DE3823678A1 Liquid pump having an electric drive |
02/01/1989 | EP0301164A2 Electrical drive or generator |
02/01/1989 | EP0301156A2 Improvements to the pulsating current electric motor, deprived of the commutator |
01/31/1989 | US4801830 Brushless motor |
01/31/1989 | US4801252 Slide bearing unit for small size fan |
01/26/1989 | DE3723653A1 Electric motor, especially a record player motor |
01/26/1989 | DE3723099A1 Permanent-magnet-excited dynamo machine having a slotted laminated core |
01/25/1989 | EP0300126A1 Vehicle with internal combustion motor, generator and electrical drive motor |
01/25/1989 | EP0300125A1 Electrical drive or generator |
01/25/1989 | EP0300124A1 Electrical drive or generator |
01/25/1989 | EP0300123A1 Electrical drive or generator |
01/24/1989 | US4800307 Replaceable circuit board mounting system in outer rotor motors |
01/18/1989 | EP0299512A2 Brushless DC motor |
01/18/1989 | EP0299137A1 Electrical drive or generator |
01/12/1989 | WO1989000358A1 Stator assembly for dynamoelectric machine |
01/11/1989 | EP0298194A2 Electrical drive |
12/27/1988 | US4794293 Direct current electric motor |
12/22/1988 | DE3818994A1 Disc store drive |
12/21/1988 | EP0295718A2 Method for winding a motor with armature teeths and field magnet |
12/20/1988 | US4792712 Rotor having magnets with enclosing shells |
12/15/1988 | DE3818346A1 In-hub motor |
12/14/1988 | EP0294541A1 Electrical drive or generator |
12/07/1988 | CN87104305A Electric signal transmission system |
12/06/1988 | US4789812 Device for controlling a motor for rotating a magnetic disc |
11/29/1988 | US4788465 Armature for DC motor |
11/29/1988 | US4788464 Disc drive with integral spindle yoke |
11/22/1988 | US4786834 Stator assembly for dynamoelectric machine |
11/17/1988 | WO1988009079A1 Electric motor including gear |
11/17/1988 | EP0291219A2 Compact three-phase permanent magnet rotary machine having low vibration and high performance |
11/15/1988 | CA1244867A1 Brushless motor |
11/10/1988 | DE3812638A1 Brushless, bipolar multi-phase DC motor |
11/09/1988 | EP0290226A2 Disc drive spindle motor with low cogging torque |
11/02/1988 | EP0289075A2 Reluctance electric machine |
11/01/1988 | US4782272 Brushless d.c. drive system |
11/01/1988 | US4782259 Frequency generator and motor with the same |
10/26/1988 | EP0287949A1 Screened inductance sensors for brushless dc motors |
10/26/1988 | EP0287937A2 Tachometer generator for electric machines |
10/25/1988 | US4779330 Method for manufacturing motor with stator on printed circuit assembly |
10/19/1988 | EP0286905A1 Electronically commutated brushless DC motor |
10/18/1988 | US4779165 Disk storage drive |
10/18/1988 | US4779069 Apparatus and method for making integral coaxial communication and rotor magnets |
10/13/1988 | DE3810199A1 Small electric motor (miniature electric motor) |
10/06/1988 | WO1988007783A1 Two-phase rectifier electric motor |
10/05/1988 | EP0285053A2 Fiber optic sensing system and method across working air gap of an electric motor |
10/05/1988 | EP0285048A2 Electronically commutated collectorless D,C, motor |
10/04/1988 | US4775813 Electric motor having formed stator sections with coplanar teeth |
10/04/1988 | US4775812 Three section brushless motor |
09/27/1988 | US4774428 Compact three-phase permanent magnet rotary machine having low vibration and high performance |
09/27/1988 | US4773829 Centrifugal fan driven by an electronic-commutation direct-current motor |
09/27/1988 | US4773828 Blower |
09/22/1988 | WO1988007285A1 Improvements relating to d.c. motors |
09/21/1988 | EP0282876A2 Method for winding the coils for an air gap motor |
09/20/1988 | US4772815 Variable refluctance position transducer |
09/13/1988 | US4771200 Synchro generator asymmetric magnetically conductive rotor |
09/07/1988 | WO1988006781A1 In-spindle motor assembly for disk drive and method for fabricating the same |
09/06/1988 | US4769568 Reluctance rotary machine |
09/06/1988 | US4769567 Brushless DC motor with cogging reduction |
08/25/1988 | WO1988006377A1 Engine starter and charger |
08/25/1988 | WO1988006376A1 Electric motor |
08/25/1988 | WO1988006375A1 Transverse flow machine in a collector arrangement |
08/25/1988 | WO1988006372A1 Starter/charger of engine |
08/25/1988 | WO1988006370A1 Starter/charger of engine |
08/25/1988 | WO1988006369A1 Starter/charger of engine |
08/25/1988 | DE3804549A1 DC motor which has no commutator but has a permanent-magnet rotor |
08/11/1988 | WO1988005975A1 High speed dc motor |