| Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141) |
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| 08/18/1994 | WO1994018740A1 Rotor of synchronous motor |
| 08/11/1994 | DE4302807A1 Multiphase electrical machine having electrical pole units which are arranged offset and are structurally identical |
| 08/09/1994 | US5337374 Disk drive apparatus |
| 08/09/1994 | US5337030 Permanent magnet brushless torque actuator |
| 08/09/1994 | US5336956 Brushless dynamo machine with novel armature construction |
| 08/09/1994 | US5336955 Outer - rotor type spindle motor |
| 08/04/1994 | WO1994017582A1 Electromagnetically powered rotary motor apparatus and method |
| 08/04/1994 | DE4302770A1 Permanently energised single or multiple phase electric generator |
| 08/03/1994 | CN2173477Y Strong and permanent magnet industry-frequency ac/dc generator |
| 08/02/1994 | USRE34684 Drive motor for magnetic disks, optical disks, and magneto-optical disks |
| 08/02/1994 | US5334899 Polyphase brushless DC and AC synchronous machines |
| 08/02/1994 | US5334898 Polyphase brushless DC and AC synchronous machines |
| 08/02/1994 | US5334896 Spindle motor for magnetic disk devices |
| 08/02/1994 | CA1331103C Drives for clothes washing machines |
| 07/28/1994 | DE4402411A1 Permanent-magnet synchronous motor with current-smoothing mechanism |
| 07/28/1994 | DE4334482A1 Synchronous motor with perforated flux guides on outer part of stator |
| 07/28/1994 | DE4302042A1 Compact, flat construction electromotor |
| 07/28/1994 | DE4301675A1 Electronic commutator electromotor, e.g. for fan or rotary pump |
| 07/27/1994 | EP0607378A1 Actuator for adjusting the angle of rotation of a setting device. |
| 07/27/1994 | EP0607320A1 Fluid pump with magnetically levitated impeller |
| 07/27/1994 | EP0540550B1 Dynamo-electric machine having cross-flux sectors |
| 07/27/1994 | CN1090097A Method for magnetization of permanent magnetic motor |
| 07/26/1994 | US5332374 Axially coupled flat magnetic pump |
| 07/26/1994 | CA1330882C Electrically commutated motor having an edgewise wound yoke |
| 07/21/1994 | WO1994016490A1 Air-bearing motor assembly for magnetic recording systems |
| 07/19/1994 | US5331245 Permanent magnet excited electric motor with improved torque ripple |
| 07/19/1994 | US5331244 Permanent magnet DC machine having meander-like stator windings for producing high torque without excessive heating |
| 07/14/1994 | DE4300145A1 Storage disk collectorless drive motor |
| 07/13/1994 | EP0605573A1 Ultrasonic instrument with a micro motor having stator coils on a flexible circuit board. |
| 07/12/1994 | US5329195 Sensor motor |
| 07/06/1994 | EP0604762A2 Synchronous electric motor, particularly for submersible pumps, and pump including the motor |
| 07/05/1994 | US5327069 Switched reluctance machine including permanent magnet stator poles |
| 07/05/1994 | US5327034 Electrically motorized wheel assembly |
| 07/05/1994 | US5327033 Micromechanical magnetic devices |
| 06/28/1994 | US5325260 AC power and control for electro-magnet lifts |
| 06/28/1994 | US5325006 Sealed magnetic fluid bearing for polygon mirror drive motor |
| 06/23/1994 | WO1994014225A1 Rotor with hollow cylindrical permanent magnet |
| 06/23/1994 | WO1994013955A1 Fluid pump with improved magnetically levitated impeller |
| 06/23/1994 | CA2148688A1 Rotor with hollow cylindrical permanent magnet |
| 06/21/1994 | US5323077 Electrical machine having a permanent-magnet-excited rotor |
| 06/21/1994 | US5323074 Armature core |
| 06/14/1994 | US5321330 Electromagnetic transducer with a multipolar permanent magnet |
| 06/14/1994 | US5319844 Method of making an electromagnetic transducer |
| 06/09/1994 | WO1994013052A1 High power self-controlled multi-phase synchronous machine |
| 06/09/1994 | WO1994013051A1 Brushless dynamoelectric machine with specialized armature construction |
| 06/07/1994 | US5319270 Electric motor |
| 06/01/1994 | DE4317817C1 Three phase AC generator with permanent magnetic rotor for bicycle with AC output - converted by six DC rectifier diodes with low forward voltage to DC and stator consists of 3 identically designed induction coils with soft iron pole finger cages |
| 05/31/1994 | US5317227 Rotor with hollow cylindrical permanent magnet |
| 05/26/1994 | WO1994011940A1 Generator using on/off operation of magnetic force |
| 05/26/1994 | WO1994005073A3 Electric fan motor |
| 05/26/1994 | DE4315463C1 Electric current generator integrated into crank of piston engine - uses induction of current in armature windings on connecting-rod by permanent magnets secured to crank arm |
| 05/25/1994 | EP0598137A1 Rotor for synchronous motor |
| 05/25/1994 | CN2166557Y Permanent-magnet brushless direct-current generator |
| 05/18/1994 | CN2165567Y Rare-earth permanent-magnet industrial frequency electric generator |
| 05/17/1994 | US5313159 Magnetic encoder with composite magnet |
| 05/17/1994 | US5313131 Slotless motor |
| 05/11/1994 | EP0596682A1 Motor with position sensing |
| 05/11/1994 | DE4237343A1 Permanent excitation electric generator with adjustable output voltage - has two-part stator with coils in series and one stator half rotatable over width of magnet pole |
| 05/10/1994 | US5311092 Lightweight high power electromagnetic transducer |
| 04/28/1994 | WO1994009553A1 Motor and/or generator working on the reluctance principle |
| 04/28/1994 | WO1994009552A1 Multi-phase electric machine with prefabricated conductor strands |
| 04/28/1994 | WO1994009549A1 Composite magnet brushless dc motor |
| 04/28/1994 | WO1994009548A1 Electric operated tracked vehicle |
| 04/28/1994 | WO1994008837A1 Battery operated tracked vehicle |
| 04/27/1994 | CN2163475Y Low speed permanent magnet generator |
| 04/26/1994 | US5306977 Cooling rotor for an alternator mounted on vehicle |
| 04/26/1994 | US5306183 Propulsion systems for submarine vessels |
| 04/20/1994 | EP0592468A1 Element for insertion in data-processing equipment. |
| 04/20/1994 | EP0431006B1 An electric motor |
| 04/20/1994 | EP0378596B1 Two-phase or multiphase synchronous electric motor with disk-shaped rotor |
| 04/20/1994 | CN1085693A 小型同步电动机 Small synchronous motor |
| 04/19/1994 | US5305163 Stationary angularly aligned stationary spindle shaft |
| 04/19/1994 | US5304882 Variable reluctance motors with permanent magnet excitation |
| 04/19/1994 | US5304881 Means for producing rotary motion |
| 04/13/1994 | EP0592083A1 Permanent magnet brushless torque actuator |
| 04/13/1994 | EP0591724A1 Hub generator, especially for bicycles |
| 04/13/1994 | CN1085358A Polyphase electromagnetic transducer having a multipolar permanent magnet |
| 04/07/1994 | DE4234388A1 Bicycle light dynamo - has iron-free armatures and is built directly into wheel hub |
| 04/06/1994 | EP0590185A1 Electromagnetic motor |
| 04/06/1994 | EP0368930B1 A motor or alternator |
| 04/05/1994 | US5300848 Dual permanent magnet generator planetary gear actuator and rotor phase shifting method |
| 03/31/1994 | WO1994006486A1 Heart pump |
| 03/31/1994 | DE4229261C1 Electric generator for bicycle or individual wheel with rotor at rotatable wheel - equipped with permanent magnets and stator formed by coil system for receiving induced voltage is fixed on wheel spindle and generator can be used as servo motor |
| 03/31/1994 | CA2144543A1 Heart pump |
| 03/30/1994 | EP0589342A1 Multiphase electromagnetic transducer with a multipolar permanent magnet |
| 03/30/1994 | CN1024106C Permanent magnet type synchronous motor |
| 03/29/1994 | US5298825 Single phase electro-magnetic actuator with low obstruction |
| 03/23/1994 | EP0588448A2 Electric motor |
| 03/22/1994 | US5296981 Disk drive apparatus |
| 03/22/1994 | US5296773 Composite rotor for a synchronous reluctance machine |
| 03/17/1994 | WO1994006198A1 Quasi square-wave back-emf permanent magnet ac machines with five or more phases |
| 03/16/1994 | CN1083981A Permanent magnetic rotator of brushless electric motor and manufacture thereof |
| 03/15/1994 | US5294856 Shifted pole single phase variable reluctance motor |
| 03/15/1994 | US5294853 Electrical powerplant for vehicles |
| 03/10/1994 | DE4229457A1 Current generation system for bicycle - uses current conductor winding carried by metal core with air-gap bridged periodically by rotation of bicycle wheel |
| 03/03/1994 | WO1994005075A1 Permanent magnet rotor of brushless motor and production method thereof |
| 03/03/1994 | WO1994005073A2 Electric fan motor |
| 03/03/1994 | WO1994004807A1 Actuator for adjusting the angle of rotation of a setting device |
| 03/03/1994 | CA2142089A1 Permanent magnet rotor of brushless motor and production method thereof |
| 03/02/1994 | CN1083277A Electric generator with magnetically conducting differential rotor |