Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141) |
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02/04/1999 | WO1999005772A1 One way interactive electric motors |
02/04/1999 | WO1999005769A1 Claw pole motor |
02/03/1999 | EP0895337A1 Method for diversifying synchronous motor and synchronous motor manufactured by the same |
02/03/1999 | EP0801837A4 Light weight genset |
02/03/1999 | CN2306608Y Vehicle wheel axle electric generator |
02/02/1999 | US5867346 Disk driving spindle motor |
02/02/1999 | US5866961 Motor structure |
01/27/1999 | EP0893874A1 Homopolar induction generator |
01/27/1999 | EP0893873A1 Method of securing magnets of revolving electric machine |
01/27/1999 | EP0607320A4 Fluid pump with magnetically levitated impeller. |
01/27/1999 | CN1206237A AC power generator with two matched magnetic wheels |
01/27/1999 | CN1206236A Method of securing magnets of revolving electric machine |
01/26/1999 | US5864443 Disk storage device having a detachable coupling ring in the hub |
01/26/1999 | US5864197 Synchronous machine |
01/26/1999 | US5864191 Efficient permanent magnet rotor for brushless motor |
01/26/1999 | US5862686 Drive device for a front-loading washing machine |
01/21/1999 | WO1999003187A1 Synchronous alternator for use in a wind power plant and wind power plant |
01/21/1999 | DE19729034A1 Synchrongenerator zum Einsatz bei Windenergieanlagen sowie Windenergieanlage Synchronous generator for use in wind turbines and wind turbine |
01/19/1999 | US5861696 Methods and apparatus for improved DC motors and magnetic clutches |
01/19/1999 | US5861693 Permanent magnet having high bhmax (b=magnetic flux density, h=magnetic coercive force) with duplex structure: inner layer cobalt-iron-yttrium and outer layer iron-neodymium-boron; energy efficiency |
01/19/1999 | US5861690 Electric machine |
01/19/1999 | US5861604 Arc welder and method providing use-enhancing features |
01/14/1999 | WO1999001849A1 Vibrational transducer |
01/14/1999 | DE19726351A1 Magnetgelagerter elektrischer Antrieb mit integriertem Wicklungssystem Magnetic bearing mounted electric motor with integrated winding system |
01/14/1999 | CA2294587A1 Vibrational transducer |
01/13/1999 | EP0891032A2 Motor |
01/13/1999 | EP0368930B2 A motor or alternator |
01/13/1999 | CN1204885A Method for controlling continuous rotation miniature motor |
01/13/1999 | CN1204884A Device for starting and power generation for vehicle |
01/13/1999 | CN1204880A Stator core and wire winding method for the same |
01/12/1999 | US5859487 Stator structure of motor and its forming method |
01/12/1999 | US5859486 Rotary motor and production method thereof, and laminated core and production method thereof |
01/12/1999 | US5857762 Bicycle lighting system and generator |
01/07/1999 | EP0888665A1 Method of fabricating a rotor for a motor and the rotor produced thereby |
01/07/1999 | EP0888663A2 Turbomachine, especially for a domestic appliance |
01/07/1999 | EP0818077A4 Hybrid alternator |
01/07/1999 | DE19726424A1 Level multiple circuit with compensation for permanent magnet internal pole generator |
01/07/1999 | DE19726352A1 Magnetgelagerter elektrischer Antrieb mit konzentrierten Wicklungen Magnetic bearing mounted electric drive with concentrated windings |
12/30/1998 | WO1998059407A1 Electric drive mechanism with a magnetic bearing |
12/30/1998 | WO1998059406A1 Magnetic bearing electric drive mechanism |
12/30/1998 | EP0887913A2 Method to control a micromotor at constant speed |
12/30/1998 | EP0887911A1 Rotary electrical machines |
12/30/1998 | CN1203476A Transverse radiation electric machine |
12/29/1998 | US5854526 Three-phase permanent-magnet electric rotating machine |
12/29/1998 | US5854521 Multi-phase transverse magnetic flux machine |
12/24/1998 | DE19725525A1 Electronic commutator motor |
12/23/1998 | EP0829129B1 Electromagnetic actuator magnetically locked into two or more stable positions |
12/22/1998 | US5852335 Stator structure for rotary electric machine |
12/22/1998 | US5850733 Gaseous fuel compression and control system and method |
12/17/1998 | DE19715690A1 Electrical power generator for low rotational speed |
12/16/1998 | EP0884823A1 Electromagnetical drive apparatus with moving permanent magnet |
12/16/1998 | EP0884237A1 Bicycle generator |
12/16/1998 | EP0883925A1 Flywheel energy accumulator |
12/16/1998 | CN1202282A Motor |
12/15/1998 | US5850318 Disc drive data storage system |
12/10/1998 | DE19723810A1 Resonance circuit with compensation for simultaneous use as generator stator circuit and motor stimulation circuit |
12/09/1998 | EP0882427A1 Ultrasonic imaging device having a bearingless rotating mirror |
12/08/1998 | US5847485 For driving a memory apparatus |
12/08/1998 | US5847483 Pulse generator |
12/08/1998 | US5847482 Electromagnetic motor |
12/08/1998 | US5847476 Audible noise reduction in a disc drive |
12/03/1998 | WO1998054463A1 Permanent magnet generator |
12/02/1998 | EP0881757A1 Rotating synchronous machine featuring an excitation device |
12/01/1998 | US5844344 DC brushless motor having auxiliary salient poles |
12/01/1998 | US5844341 Electromagnetic machine with at least one pair of concentric rings having modularized magnets and yokes |
12/01/1998 | US5844338 For automotive applications |
11/26/1998 | WO1998053544A1 Electric generator for wind power engine |
11/25/1998 | EP0879496A2 Energy storage flywheel apparatus and methods |
11/24/1998 | US5841208 Motor capable of generating an electric signal having a particular and precise frequency and a rotary magnetic head apparatus using the same |
11/19/1998 | WO1998052271A1 Magnetic bearing coupled with an electric motor |
11/19/1998 | WO1998037611A3 Rotor assembly for a rotating machine |
11/17/1998 | US5838086 Synchronous motor with permanent magnets included in a rotor |
11/17/1998 | US5838085 Versatile AC dynamo-electric machine |
11/17/1998 | US5838082 Superconducting bearing device |
11/11/1998 | EP0876703A1 Axial pole motor |
11/11/1998 | EP0876702A1 Integrated magnetic levitation and rotation system |
11/10/1998 | US5834875 Multiphase electric machine with prefabricated conductor lanes |
11/10/1998 | US5834874 Alternator with mechanically adjustable output |
11/10/1998 | US5834873 Brushless three-phase dc motor |
11/10/1998 | US5834868 Spindle motor |
11/10/1998 | US5834866 Motor structure |
11/03/1998 | US5831366 Permanent magnet alternator |
11/03/1998 | US5831363 Scanner motor |
11/03/1998 | US5831355 Method for manufacturing a spindle motor |
10/29/1998 | WO1998048502A1 Improved electrical machine with double excitation |
10/27/1998 | US5828145 Bicycle generator-containing hub and a lighting apparatus using the hub |
10/22/1998 | WO1998047217A1 Lightweight rotor and stator with multiple coil windings in thermal contact |
10/22/1998 | WO1998047216A1 Brushless polyphase transformer, in particular motor vehicle alternator |
10/22/1998 | WO1998026495A3 Motor/generator |
10/21/1998 | EP0872946A1 Polyphase brushless machine, especially automobile vehicle alternator |
10/21/1998 | EP0872943A1 Permanent-magnet revolving electrodynamic machine with a concentrated stator winding |
10/20/1998 | US5825586 Disk drive motor having a drive pin assembly which facilitates stabilized chucking of a disk |
10/20/1998 | US5825116 AC generator for vehicle having combined structure of field coil and permanent magnet |
10/20/1998 | US5825115 Electric motor and indicating mechanism, in particular for indicating instruments in motor vehicles |
10/20/1998 | US5825113 Doubly salient permanent magnet machine with field weakening (or boosting) capability |
10/20/1998 | US5825112 Doubly salient motor with stationary permanent magnets |
10/20/1998 | US5825108 Brushless electric motor, particularly for direct driving of a washing machine |
10/20/1998 | US5825106 Bi-directional biphase electromechanic transducer having multipolor magnets |
10/20/1998 | US5822839 Method for making a micromotor in a ceramic substrate |
10/15/1998 | WO1998045927A1 Unilateral transverse flux machine with a multi-strand design |