Patents
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
11/2004
11/03/2004CN1541883A Bicycle hub
11/03/2004CN1174540C Power generating installation comprising a generator and a reciprocating internal combustion engine as drive
11/03/2004CN1174539C Device for forming etamine selvage with electromotor comprising rotor and stator for accommodating rotor
11/03/2004CN1174538C Disk type motor generator and method for manufacturing stator winding of same
11/03/2004CN1174537C Laundry machine
11/02/2004US6812615 Electric motor
11/02/2004US6812614 Rotor for a synchronous motor defined by a hyperbolic function
11/02/2004US6812611 Permanent magnet type electric rotating machine
11/02/2004US6812610 Rotary electric machine, linear motor and stator thereof
11/02/2004US6812609 Electric machine having electric coils and permanent magnets
11/02/2004US6812603 Flat motor
11/02/2004US6812600 Motor for use with thin type inner rotor and disk apparatus
11/02/2004US6812599 Low-profile stepping motor with two coils arranged flush with each other horizontally
11/02/2004US6811382 Integrated pumping system for use in pumping a variety of fluids
10/2004
10/28/2004WO2004093298A1 Permanent magnet type motor
10/28/2004WO2004093291A1 Core back of an electrical machine and method for making the same
10/28/2004WO2004093289A2 Electromagnetic motor employing multiple rotors
10/28/2004WO2004064223A3 Flat rotary electric generator
10/28/2004US20040213686 Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor
10/28/2004US20040212273 Heat engine and generator set incorporating multiple generators for synchronizing and balancing
10/28/2004US20040212270 Flat rotor and motor comprising the same
10/28/2004US20040212267 Core back of an electrical machine and method for making the same
10/28/2004US20040211213 Refrigerating device
10/28/2004DE10297407T5 Hydrodynamisches Fluidlager mit Schmiermitteln mit verringerter Tendenz zur Blasenbildung für eine Plattenlaufwerkanwendung The hydrodynamic fluid bearing lubricants with reduced tendency to bubble formation for a drive application
10/28/2004CA2525816A1 Electromagnetic motor employing multiple rotors
10/27/2004EP1320478B8 Direct drive for a wheel set
10/27/2004EP1301977B1 Electric motor with rotor assembly and method of manufacturing
10/27/2004EP1246960B1 Drive for a sewing machine, in particular an industrial sewing machine
10/27/2004EP1101272A4 Rotors utilizing a stepped skew
10/27/2004EP1062718B1 Electric motor or generator
10/27/2004CN2652016Y Unitary six polar permanent magnet rotor power generator
10/27/2004CN1540844A Composite excited rare earth permanent magnet synchronous generator
10/27/2004CN1173448C Fixing electromotor on printed board
10/26/2004US6809457 Brushless DC motor with a reduced thickness
10/26/2004US6809456 Vector motor
10/26/2004US6809452 Skeleton type brushless motor
10/26/2004US6809442 Stator structure for rotary electric machine
10/21/2004WO2004091078A1 Rotary actuator
10/21/2004WO2004091077A1 Proportional rotary torquer
10/21/2004WO2004091076A1 An outer magnetic circuit bias magnetic bias reluctance machine with permanent magnets
10/21/2004WO2004091075A2 Synchronous electric motor comprising a stator and at least one rotor and associated control device
10/21/2004WO2004091071A1 Permanent magnetic bias magnetic type reluctance motor
10/21/2004WO2004006412A3 Pm motor and generator with a vertical stator core assembly formed of pressure shaped processed ferromagnetic particles
10/21/2004US20040210415 Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor
10/21/2004US20040207286 Brushless electro-mechanical device
10/21/2004US20040207281 Hybrid synchronous electric machine
10/21/2004US20040207279 Electromagnetic motor employing multiple rotors
10/21/2004US20040206174 Power generating meter
10/20/2004CN2649800Y Manual electric generating device
10/20/2004CN1539191A Rotor and electric generator
10/20/2004CN1539190A 电动机 Electric motor
10/20/2004CN1172419C Synchronous electric motor rotor and manufacturing method thereof
10/14/2004WO2004088833A1 System for driving synchronous motors with built-in permanent magnets
10/14/2004WO2004088826A1 Rotating electric machine and electric vehicle
10/14/2004US20040202095 Spindle motor and mobile communication system using the same
10/14/2004US20040201299 Flywheel magneto generator
10/14/2004US20040200057 Systems and methods for manufacturing adaptive electric machines
10/14/2004DE10311819A1 Electric motor has pole shoe heads, and poles with flat shapes that move relative to each other along closed path so overlap area increases non-linearly with displacement when shapes start to overlap
10/13/2004EP1467471A1 Generator
10/13/2004EP1194999B1 Method for setting a polyphase electric stepper motor
10/13/2004EP0917757B1 Rotary electrical machines
10/13/2004CN2648683Y Fluid DC power supply
10/13/2004CN1537354A Brushless motor using vernier structure
10/13/2004CN1536572A Mainshaft motor and movable communication system using the same
10/12/2004US6803696 Magnet motor device
10/12/2004US6803692 Permanent magnet type electric motor
10/12/2004US6803691 Ring-shaped motor core
10/12/2004US6803690 Electric motor excited by permanent magnets
10/07/2004US20040196832 Brushless dc motor with a reduced thickness
10/07/2004US20040195933 Motor core construction
10/07/2004US20040195932 Multi-stage motor
10/07/2004US20040195931 High-efficiency rotating unit using magnetic force
10/07/2004US20040195926 Electric motor
10/07/2004US20040195925 Rotary electric machine
10/07/2004US20040194286 Method of making a ring-magnet assembly
10/07/2004DE10311817A1 Electric motor especially brushless electric motor, has stator units embedded in cured embedding compound which forms carrier body for stator units
10/07/2004DE10011591B4 Drehmotor Rotary engine
10/06/2004EP1465323A2 Motor for geared motor assembly with reduced space requirements
10/06/2004CN2646956Y 永磁发电机 PMG
10/06/2004CN2646949Y Automatic generating plant of decorative lamp
10/06/2004CN1534851A Hub generator for bicycle
10/05/2004US6801388 Spindle motor and data recording/reproducing apparatus with dynamic-pressure fluid bearing supporting shaft and ball bearing support rotor
10/05/2004US6800979 Brushless motor and electric appliance or vehicle equipped with the same
10/05/2004US6800977 Field control in permanent magnet machine
09/2004
09/30/2004WO2004084399A2 Multiphase motors with single point sensing based commutation
09/30/2004WO2004070914A3 Dynamoelectric machine having windings that differ in wire gauge and number of winding turns
09/30/2004US20040190250 Electronic component cooling apparatus
09/30/2004US20040189139 Electric motor of the permanent-magnet type
09/30/2004US20040189132 Modular flux controllable permanent magnet dynamoelectric machine
09/30/2004US20040189129 Magnet carrier for rotary electrical device
09/30/2004US20040189128 Hybrid car and dynamo-electric machine
09/30/2004US20040189112 Bicycle hub
09/30/2004DE10311818A1 Electric motor has housing parts forming segment containing stator units, carrying first, second closure elements on first, second ends so it can engage first closure element of another housing part
09/30/2004DE10308745A1 Elektrische Maschine Electric machine
09/29/2004EP1463186A1 Linear actuator
09/29/2004EP1462350A1 Bicycle hub
09/29/2004EP1461854A2 Electrical machine
09/29/2004CN1532430A Hydraulic bearing, main shaft motor with said hydraulic bearing and disc driver with said main shaft motor
09/28/2004USRE38601 Disk storage device having a radial magnetic yoke feature
09/28/2004US6798111 Plastic encapsulated electrodynamic apparatus