Patents
Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091)
03/1999
03/11/1999DE19739682A1 Sensoreinrichtung Sensor device
03/11/1999DE19739293A1 Stator for electrically commutated d.c. motor
03/10/1999CN1210211A Bearing system and brushless DC motor using such system
03/09/1999US5880549 Switched reluctance rotator
03/09/1999US5880544 Flywheel-type power storage device
03/09/1999US5879785 Position sensor PCB mounting structure for electric motor
03/04/1999DE19839785A1 Electric motor with six-pole stator
03/03/1999EP0899847A1 Method for determining the position and the direction of movement of a movable part driven by an electric motor
03/03/1999CN2309663Y High-efficiency rare-earth permanent-magnetic brushless dc electric machine
03/03/1999CN1209677A Brushless dc. motor
03/03/1999CN1209673A Brushless dc. motor
03/02/1999US5877574 Dynamoelectric machine
03/02/1999US5877572 Reduced noise reluctance machine
03/02/1999US5877568 Rotor position sensing system
03/02/1999US5877567 Brushless motor having lubrication oil gaps and a core with radially projecting poles
02/1999
02/25/1999WO1999009645A1 Separately excited electric machine
02/23/1999US5874796 Permanent magnet D.C. motor having a radially-disposed working flux gap
02/18/1999WO1999008366A1 Pump driven by brushless motor
02/18/1999WO1999008363A1 Dynamo electric machines and stators for use in same
02/18/1999CA2299721A1 Dynamo electric machines and stators for use in same
02/18/1999CA2298588A1 Pump driven by brushless motor
02/17/1999CN2308207Y Brushless D. C. motor
02/16/1999US5872442 Brushless motor
02/16/1999US5872409 Bearing system and brushless DC motor using such system
02/16/1999US5872407 Linear motor
02/10/1999EP0895665A1 Thin film electric motors and method of manufacture
02/10/1999CN2307398Y Improved small brushless dc motor
02/04/1999WO1999005772A1 One way interactive electric motors
02/04/1999WO1999005769A1 Claw pole motor
02/04/1999DE19732564A1 Transport conveyor for goods or suitcases
02/03/1999EP0872008A4 Motor termination board
02/03/1999EP0801837A4 Light weight genset
02/03/1999CN1207217A High-efficiency electric motor of electronic commutation type
02/02/1999US5867346 Disk driving spindle motor
02/02/1999US5866965 Variable reluctance motor having foil wire wound coils
02/02/1999US5866962 Rotor position detecting apparatus in switched reluctance motor
02/02/1999US5866961 Motor structure
01/1999
01/27/1999EP0655823B1 Method of driving a brushless dc motor
01/26/1999US5864443 Disk storage device having a detachable coupling ring in the hub
01/26/1999US5864192 Brushless motor with magnetic sensor to detect leaked magnetic flux
01/26/1999US5864191 Efficient permanent magnet rotor for brushless motor
01/26/1999US5862686 Drive device for a front-loading washing machine
01/21/1999WO1999003188A1 Brushless dc permanent magnet motors for traction drive systems
01/19/1999US5861696 Methods and apparatus for improved DC motors and magnetic clutches
01/19/1999US5861693 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
01/14/1999WO1999001665A1 Integrated controller pump
01/14/1999CA2264173A1 Integrated controller pump
01/13/1999EP0368930B2 A motor or alternator
01/13/1999CN1204885A Method for controlling continuous rotation miniature motor
01/13/1999CN1204880A Stator core and wire winding method for the same
01/12/1999US5859487 Stator structure of motor and its forming method
01/12/1999US5859486 Rotary motor and production method thereof, and laminated core and production method thereof
01/07/1999EP0888663A2 Turbomachine, especially for a domestic appliance
12/1998
12/30/1998EP0887913A2 Method to control a micromotor at constant speed
12/24/1998DE19725525A1 Electronic commutator motor
12/24/1998DE19725522A1 Elektronisch kommutierter Motor Electronically commutated motor
12/23/1998WO1998058443A1 Electronically commutated motor
12/23/1998EP0885481A1 Electronically commutated motor
12/23/1998EP0696242B1 Articulated arm transfer device
12/23/1998CN2301811Y Permanent-magnet brushless DC motor
12/23/1998CN2301810Y Permanent-magnet brushless DC motor
12/22/1998US5852335 Stator structure for rotary electric machine
12/22/1998US5852334 Staggered pole switched reluctance motor
12/22/1998CA2151532C Auxiliary starting switched reluctance motor
12/16/1998EP0883926A1 High-efficiency electric motor of electronic commutation type
12/15/1998US5850318 Disc drive data storage system
12/09/1998CN1201564A Motor termination board
12/09/1998CN1041155C Appartus for controlling driving of brushless DC motor
12/08/1998US5847483 Pulse generator
12/03/1998DE19824226A1 Switched reluctance motor
12/02/1998EP0881761A1 A controller for a brushless DC motor without a position sensor
12/02/1998EP0881755A2 Rotor positioning magnets
12/01/1998US5844346 Low torque ripple switched reluctance motor
12/01/1998US5844344 DC brushless motor having auxiliary salient poles
12/01/1998US5844343 Auxiliary starting switched reluctance motor
12/01/1998US5844338 For automotive applications
11/1998
11/26/1998WO1998037618A3 Rotating machine for use in a pressurized fluid system
11/25/1998EP0879496A2 Energy storage flywheel apparatus and methods
11/25/1998CN1199948A DC electric motor
11/24/1998US5841208 Motor capable of generating an electric signal having a particular and precise frequency and a rotary magnetic head apparatus using the same
11/18/1998EP0878047A1 Staggered pole switched reluctance motor
11/17/1998US5838122 Motor initialization method and apparatus
11/17/1998US5838087 Reluctance machine
11/11/1998CN1198608A Motor
11/10/1998US5834873 Brushless three-phase dc motor
11/10/1998US5834866 Motor structure
11/03/1998US5831363 Scanner motor
11/03/1998US5831359 Electronically commutated motor with external rotor
11/03/1998US5831358 Rotor end cap
11/03/1998US5831355 Method for manufacturing a spindle motor
10/1998
10/29/1998DE19733581C1 Identifying position-movement direction of movable part preset at electric motor
10/28/1998EP0874442A2 An electric motor having an improved airflow cooling system
10/28/1998EP0773621B1 Brushless dc motor
10/28/1998CN1197321A D. C. motor
10/27/1998US5828195 Method and apparatus for electronic braking of an electric motor having no permanent magnets
10/27/1998US5828154 Reluctance motor
10/22/1998WO1998047217A1 Lightweight rotor and stator with multiple coil windings in thermal contact
10/22/1998WO1998026495A3 Motor/generator
10/21/1998EP0872943A1 Permanent-magnet revolving electrodynamic machine with a concentrated stator winding
10/21/1998EP0872008A1 Motor termination board
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