Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02K - Dynamo-electric machines › H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
08/1998
08/04/1998US5789841 Axial air gap brushless motor with layered disk stator
08/04/1998US5789834 Spindle motor
08/04/1998US5789831 Method of fabricating a rotor for a motor and the rotor produced thereby
08/04/1998CA2145262C Flux controlled permanent magnet dynamo-electric machine
08/04/1998CA2131336C Magnetic rotating apparatus
07/1998
07/30/1998WO1998033263A1 Ac generator
07/30/1998WO1998033262A1 Dynamo-electric machine and generator and motor wherein the machine is used
07/30/1998WO1998033260A1 Improvements in high speed electric motors
07/30/1998DE19704652C1 Anwendung einer Ringwicklung in elektrischen Drehfeldmaschinen Application of a toroidal winding in electrical induction machines
07/29/1998CN1189002A Outer-rotor type engine-operated generator
07/28/1998US5786650 Rotor for synchronous motor
07/23/1998WO1998032212A1 Method for diversifying synchronous motor and synchronous motor manufactured by the same
07/23/1998WO1998032210A1 High-power, low-voltage axial air-gap electrical machine having a compact stator
07/22/1998EP0677176B1 Device for deflecting optical beams
07/21/1998US5783894 Method and apparatus for generating electrical energy
07/21/1998US5783880 Flexible disk drive motor
07/21/1998US5783879 Micromotor in a ceramic substrate
07/15/1998EP0793870B1 Permanent magnet synchronous motor
07/15/1998EP0754252B1 Wool-combing machine with individual electric drives to several spindles
07/15/1998CN2286355Y Circular magnetic electrical machine for motorcycle
07/15/1998CN1187714A Electric power supplying apparatus
07/15/1998CN1187706A Rotor of rotating equipment
07/14/1998US5781609 Drive device for a rotary anode of an x-ray tube
07/14/1998US5780953 Alternator
07/14/1998US5780951 Low-cost bobbin-wound stator construction for small, single-phase AC motors
07/09/1998WO1998029938A2 A high performance electric motor
07/09/1998WO1998029934A2 Electric motor
07/08/1998EP0852420A1 Rotor
07/08/1998EP0815633A4 Doubly-salient permanent-magnet machine
07/07/1998US5777418 Transverse flux motor with magnetic floor gap
07/07/1998US5777415 Two-phase unipolar drive type brushless DC motor
07/02/1998WO1998027946A1 Antiperspirant or deodorant compositions
07/01/1998EP0851559A1 Electric machine of the synchronous type
07/01/1998EP0712545A4 Versatile ac dynamo-electric machine
07/01/1998CN1186374A Electromagnetic motor with two coaxial rotors
06/1998
06/30/1998US5774302 Spin drive motor for a disk storage device
06/30/1998US5773910 Transverse flux machine
06/30/1998US5771566 Method of manufacturing a rotor which includes embedded permanent-magnets
06/25/1998WO1998015050A3 Drive arrangement with electromagnetic bearing means and elastically pivotable centering element
06/25/1998DE19652796A1 Variable speed AC motor stator design
06/25/1998DE19652186A1 Elektrischer Motor Electric Motor
06/24/1998CN1185868A Hybrid alternator having voltage regutator
06/23/1998US5770908 Motor having variable air gap
06/23/1998US5770905 Claw pole type synchronous motor
06/18/1998WO1998026495A2 Motor/generator
06/18/1998WO1998026494A1 Homopolar induction generator
06/18/1998WO1998026493A1 Permanent magnet generator for providing alternating current which has a selected frequency
06/17/1998EP0848482A2 Brushless DC motors
06/17/1998EP0848480A1 Single-phase electromechanical transducer and electromechanical device with at least one of such transducer
06/17/1998EP0848474A1 Rotor of small electric motors
06/17/1998CN2284467Y Integrately-mounting flywheel permanent-magnet constant voltage generator
06/16/1998US5767606 Synchronous electric motor, particularly for submersible pumps, and pump including the motor
06/16/1998US5767601 Permanent magnet electric generator
06/16/1998US5767600 Modular motor
06/11/1998WO1998025330A2 An electric machine
06/10/1998EP0847131A1 Motor with external rotor and method for assembly
06/10/1998EP0847130A1 Two-phase electromechanical transducer and electromechanical device with at least one of such transducer
06/10/1998EP0846614A1 Moving apparatus with drive power assisting device and movement controlling method
06/10/1998DE19650170A1 Rotary electrical generator e.g. for bicycle lighting
06/10/1998CN1184369A Current produced by fixed magnet and coil
06/09/1998US5763977 Motor vehicle alternator and system for controlling the same
06/04/1998WO1998024167A1 Switched reluctance electric motor
06/03/1998EP0845171A1 Magnetic circuits in the rotation system for generating both the mechanical power and the electric power
06/03/1998EP0845169A2 Permanent magnet rotor alternator
06/03/1998EP0711469B1 Electrical machine
06/02/1998US5761000 Data storage devices having a slim-type hard disk drive suitable for use in portable computers
06/02/1998US5760521 Motor having gear for transmitting torque and substrate with cut-out section between coils
06/02/1998US5760504 Disk drive spindle motor with radial gap and field generating coils interconnected by ring flux guide
05/1998
05/26/1998US5757100 Method & apparatus for reducing cogging torque in an electric motor
05/26/1998US5755302 Drive arrangement for a hybrid vehicle
05/20/1998EP0786167A4 Controller for permanent magnet generator
05/20/1998CN1182301A Energy conversion device using permanent magnets
05/20/1998CN1182300A Motor having bearing
05/20/1998CN1038462C Magnetic motor construction
05/19/1998US5753991 Multiphase brushless AC electric machine
05/19/1998US5753990 Means for producing rotary motion
05/19/1998US5753989 Hybrid alternator
05/13/1998EP0841738A1 Motor
05/13/1998EP0841736A2 Motor
05/13/1998CN2281610Y Flywheel generator with rectification regulater
05/13/1998CN2281609Y Stable voltage generator
05/12/1998USRE35792 Disk storage drive
05/12/1998US5751125 Artificial heart with sensorless motor
05/12/1998US5751089 Brushless DC motors/generators
05/12/1998US5751085 Axial gap type electric motor with dynamic pressure air bearing
05/07/1998WO1998008290A3 Brushless synchronous rotary electrical machine
05/05/1998US5747910 Brushless motor
05/05/1998US5747909 Hybrid alternator
04/1998
04/30/1998WO1998018189A2 Electrical machine with a single pole winding
04/29/1998EP0838891A1 Energy conversion device using permanent magnets
04/29/1998EP0641059B1 Rotor of synchronous motor
04/29/1998CN1180457A Motor
04/29/1998CN1180260A Drive device for front-loading washing machine
04/28/1998US5744896 Interlocking segmented coil array
04/28/1998US5744893 Brushless motor stator design
04/28/1998US5744888 Multiphase and multipole electrical machine
04/28/1998US5744886 Capstan motor assembly and assembling method thereof
04/23/1998WO1998016989A1 Generator
04/23/1998DE19643791A1 Position control motor based on electronic commutator synchronous motor
04/22/1998EP0837544A1 Motor structure
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