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)
06/2003
06/10/2003US6577097 Method and system for controlling a synchronous machine using a changeable cycle-conduction angle
06/10/2003US6577036 Design for frameless cartridge motors
06/10/2003US6577022 Hybrid car and dynamo-electric machine
06/10/2003US6575633 Hydraulic bearing motor
06/05/2003WO2003047074A1 Travelling field synchronous ac motor
06/05/2003WO2003047071A2 Rotary electric motor having separate control modules for respective stator electromagnets
06/05/2003WO2003047067A2 Electrical machine
06/05/2003WO2003046911A1 Spindle motor for hard disk drives
06/05/2003US20030102840 Flux shunt wave shape control arrangement for permanent magnet machines
06/05/2003US20030102769 Electrical machine
06/05/2003US20030102764 Flat rotary electric machine
06/05/2003US20030102758 Brushless rotary electric machine having tandem rotary cores
06/05/2003US20030102756 High electrical and mechanical response structure of motor-generator
06/05/2003US20030102755 Permanent magnet rotor
06/05/2003US20030102754 Vector motor
06/05/2003US20030102753 Apparatus and process for generating energy
06/05/2003US20030102731 Flexible disk drive with a gap between a main frame and a permanent magnet of a rotor so that the rotor does not fall although the rotor is upended to a stator
06/05/2003US20030102674 Hybrid car and dynamo-electric machine
06/04/2003EP1317051A1 Assembly of rotatable members
06/04/2003CN1421980A 电动机 Electric motor
06/03/2003US6573634 Method and machine for high strength undiffused brushless operation
06/03/2003US6573629 Three-phase magneto generator
06/03/2003US6573627 DC brushless voice-coil vibration motor
06/03/2003US6571895 Electrical machine, and a drive arrangement for a vehicle
05/2003
05/30/2003WO2003044927A1 Electrical machine
05/29/2003US20030098660 Integral motor and control
05/29/2003US20030098628 Electric motor
05/28/2003EP1315274A1 Travelling field synchronous ac motor
05/28/2003EP1314236A1 Electric machine for high magnetic reversal frequencies
05/28/2003CN2553563Y Wheel-shell type permanent-magnetic DC electric machine
05/27/2003US6570824 Generator for a timepiece
05/27/2003US6570288 Outer rotor type brushless direct current motor
05/27/2003US6570275 Motor having two degrees of free motion with a core having inner and outer winding portions
05/27/2003US6570274 Electric motor
05/22/2003WO2003043164A1 Dynamo-electric machine
05/22/2003WO2003043160A2 Apparatus and process for generating energy
05/22/2003US20030094880 Superconducting PM undiffused machines with stationary superconducting coils
05/22/2003US20030094875 Synchronous reluctance motor
05/22/2003US20030094874 Outer rotor type brushless direct current motor
05/22/2003US20030094873 Permanent magnet array and magnet holder for flywheel motor/generator
05/22/2003US20030094870 Spindle motor
05/22/2003US20030094868 Electric motor, in particular a fan motor
05/22/2003US20030094867 Electric motor with external rotor
05/22/2003US20030094860 Motor utilizing basic factor and having generator function
05/22/2003CA2470358A1 Apparatus and process for generating energy
05/21/2003EP1312152A1 Electrodynamic field generator
05/20/2003US6566783 Permanent magnet generator having internal stator with adjustable air gap
05/20/2003US6565326 Heat-dissipating fan structure
05/15/2003WO2003041071A1 Hydrodynamic fluid bearing containing lubricants with reduced bubble forming tendency for disk drive application
05/15/2003US20030090171 Direct current brushless motor
05/15/2003US20030090167 Rotary electric machine for electric vehicle
05/14/2003EP1311054A1 Electromagnetic transducer with bipolar permanent magnets
05/14/2003CN2550957Y Composite magnetic changing automobile AC generator
05/14/2003CN2550956Y Improved permanent magnetic synchronous generator
05/14/2003CN1417928A Permanent magnetic rotary electric device
05/14/2003CN1417927A Differential power generator
05/14/2003CN1417925A Rotary motor
05/14/2003CN1417922A Structure of rotor and stator of AC/DC motor
05/14/2003CN1108656C Method of mounting permanent magnet
05/13/2003US6563246 Rotary electric machine for electric vehicle
05/13/2003US6563243 Spindle motor
05/13/2003CA2119884C Fluid pump with magnetically levitated impeller
05/08/2003US20030088382 Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor
05/08/2003US20030086203 Hydrodynamic fluid bearing containing lubricants with reduced bubble forming tendency for disk drive application
05/08/2003US20030085628 Electric rotating machine
05/07/2003EP1309071A2 Rotating electric machine
05/07/2003EP1203436B1 Electric axial flow machine
05/07/2003CN1416198A Oynamo Set with iron core and mfg. method of such iron core
05/06/2003US6559573 Steel shaft; workability, wear and corrosion resistance; disk drives
05/02/2003EP1306963A1 Permanent magnet type rotary electric device
05/02/2003EP1153469B1 Electric machine
05/01/2003US20030080644 Removable and corrosion resistant stator assembly for an inductive drive mechanism
05/01/2003US20030080642 Brushless DC motor
05/01/2003US20030080641 Permanent magnet type rotary electric device
04/2003
04/30/2003CN1414917A 发电机 Generator
04/30/2003CN1414687A Axial controllable magnetic suspension permanent magnet disk type blood pump motor
04/30/2003CN1107371C Electromechanic transducer having multipolar permanent magnets
04/29/2003US6555941 Brushless permanent magnet motor or alternator with variable axial rotor/stator alignment to increase speed capability
04/29/2003US6555940 Permanent magnet rotor
04/24/2003WO2003034575A2 An axial flux permanent magnet generator / motor
04/24/2003US20030076003 Electrical machine
04/24/2003US20030076000 Rotary electric machine having cylindrical rotor with alternating magnetic poles thereon
04/24/2003CA2464015A1 An axial flux permanent magnet generator / motor
04/23/2003EP1304790A1 An axial flux permanent magnet generator/motor
04/23/2003EP1303900A1 Roll drive for moving rolls
04/23/2003EP1303899A1 Roll drive
04/22/2003US6552461 Permanent magnet type rotating electric machine
04/22/2003US6552460 Brushless electro-mechanical machine
04/22/2003US6552456 Hydraulic dynamic pressure bearing motor
04/22/2003US6550462 Engine ignition system
04/17/2003US20030071537 Magnet motor device
04/17/2003US20030071533 Self-starting synchronous motor and compressor using the same
04/17/2003US20030071532 Halbach array generator/motor having an automatically regulated output voltage and mechanical power output
04/17/2003US20030071530 Permanent magnet type rotary eletric machine
04/16/2003EP1301979A2 Economical, non-wearing electrical drive device
04/16/2003EP1301977A2 Rotor assembly for an electric motor and electric motor with internal rotor
04/16/2003EP1116317A4 Electric drive (options)
04/16/2003CN1411651A Single chip CMOS transmitter/receiver and method of using same
04/16/2003CN1411126A Permanet magnet type rotary electric machine
04/16/2003CN1411124A 电动机 Electric motor
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