Patents
Patents for H02K 37 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors (3,591)
03/2004
03/31/2004EP1404010A1 Low-profile stepping motor with two coils arranged flush with each other
03/31/2004EP1402617A1 Brush-less motor using vernier structure
03/30/2004US6714733 Step motor with interpole pair stabilizing rest position
03/30/2004US6713985 Drive control apparatus for stepping motor
03/30/2004US6713936 Stepping motor
03/30/2004US6713910 Control unit comprising an electric motor with a rotary magnet
03/25/2004US20040056544 Stator structure of motor
03/24/2004CN1484362A Direct driving permanent magnet type magnetic resistance motor
03/23/2004US6710503 Stator structure for claw-pole type stepping motor
03/18/2004US20040053124 Microscopic batteries for MEMS systems
03/18/2004US20040051404 Stepping motor
03/16/2004US6707196 Motor with improved motor casing
03/16/2004US6707178 Permanent magnet type twelve-pole stepping motor
03/11/2004US20040046463 Stepping motor
03/10/2004CN1481070A Driving gear of stepper dynamo and its driving method
03/10/2004CN1481065A Driving gear, fader and lens driving gear
03/09/2004US6703728 Step motor with double coil in a plane
03/04/2004US20040041495 Stator sub-assembly, stator assembly, motor and manufacturing method of stator assembly
03/03/2004EP1394926A1 Method for producing a stator of a stepping motor having a permanent magnetic disc type rotor, stator and motor produced according to this method
03/03/2004EP1394923A1 Stator sub-assembly, stator assembly, and manufacturing method of stator assembly
03/02/2004US6700271 Hybrid synchronous motor equipped with toroidal winding
03/02/2004US6700240 Stepping motor, stepping motor device and driving method thereof
03/02/2004US6700234 Electromagnetic device
02/2004
02/26/2004WO2004017489A1 Magnet of dynamo-electric machine
02/26/2004US20040036370 Electromechanical wheel brake device
02/26/2004US20040036369 Sealed motor
02/26/2004US20040036364 Lead screw type stepping motor
02/25/2004CN1477764A Stepping motor with several step angles
02/25/2004CN1140041C Motor
02/11/2004EP1388731A1 Motor and panel meter incorporating same
02/05/2004US20040021375 Stepping motor and manufacturing method therefor
01/2004
01/29/2004US20040018421 Microscopic batteries for MEMS systems
01/29/2004US20040017277 Electromagnetic device
01/28/2004CN1471222A 步进电机 Stepper motor
01/22/2004US20040012273 Motor and panel meter incorporating same
01/21/2004EP1382109A1 Low profile motor with internal gear train
01/21/2004CN1469528A Stator structure of motor
01/21/2004CN1135678C Stepping motor
01/21/2004CN1135451C Controller of step motor, control method and timing device
01/20/2004US6680597 Method for setting a polyphase electric stepper motor
01/15/2004US20040007924 Stepping motor
01/14/2004CN1467903A 步进电机 Stepper motor
01/14/2004CN1134717C Control device for step-by-step motor, and control method and timing device thereof
01/06/2004US6674187 Hybrid stepping motor
12/2003
12/31/2003WO2004001935A1 Stator coil t-connection for two-phase step motors
12/30/2003US6670732 Magnet type stepping motor
12/30/2003US6670731 Stepping motor
12/25/2003US20030234586 Stepping motor
12/18/2003WO2001018940A3 Permanent magnet motor
12/17/2003CN1131585C Electromechanical sighle-phase stepped motor
12/16/2003USRE38346 Three-phase permanent magnet cascade claw type stepping motor
12/11/2003US20030228079 Motor with axially moveable bearing member
12/11/2003US20030227273 Apparatus and method for driving a stepping motor
12/10/2003EP1369978A2 Stepping motor
12/10/2003CN2591858Y DC brushless vibrating motor
12/10/2003CN2591857Y Stepped motor with improved fixed structure of rotor
12/10/2003CN2591856Y Step-by-step motor for driving instrument pointer deflection
12/03/2003EP1367695A1 Motor with connectors
12/03/2003CN1129998C Method for driving opening closing member
12/02/2003US6657353 Permanent magnet electric machine with energy saving control
12/02/2003US6657335 Stepping motor and driving apparatus having separate position detection coil
11/2003
11/26/2003CN1458733A Directly driveng mixed reluctance motor
11/20/2003US20030214191 Electro drive
11/19/2003EP1363384A2 A self-starting brushless electric motor
11/19/2003EP1363382A1 Electric drive
11/13/2003US20030210010 Stepping motor, stepping motor device and driving method thereof
11/12/2003CN1455503A 电机 Motor
11/04/2003US6642687 Stepping-motor driving device and lens driving device using the same
11/04/2003US6640743 Meter having illuminated pointer
10/2003
10/30/2003US20030201678 Rotor structure of permanent magnet stepping motor
10/30/2003US20030201677 Step motor with multiple stators
10/29/2003CN1452805A 步进电机 Stepper motor
10/23/2003WO2003005530A3 An integrated position resolver for hybrid synchronous electric motors
10/23/2003US20030197434 Two-pole step motor for timepiece
10/22/2003CN2582266Y 步进电机 Stepper motor
10/22/2003CN2582265Y Structure-improved stepping motor
10/14/2003US6633105 Permanent magnet motor
10/09/2003US20030189379 Rotor and molding die for rotor
10/08/2003CN1447499A Motor and its mfg. method
10/08/2003CN1447498A Stepping dynamo
10/02/2003US20030184166 Structure of rotors in stepping motors
09/2003
09/30/2003US6628187 Electromagnetic device structured to resist corrosion
09/30/2003US6628032 Motor or generator type electromagnetic devices
09/25/2003US20030178911 Motor and optical apparatus using the same
09/25/2003US20030178897 Stepping motor
09/24/2003CN1444330A Electric machine
09/17/2003EP1344300A2 Unipolar transverse flux machine
09/17/2003CN1442946A Motor and its manufacturing method
09/11/2003US20030168922 Stepping motor
09/03/2003CN1439941A Driving power transferring mechanism and its damper device
08/2003
08/28/2003US20030159736 Driving force transmission mechanism and damper apparatus equipped with driving force transmission mechanism
08/27/2003CN1438757A Step-by-step motor
08/26/2003US6610440 Microscopic batteries for MEMS systems
08/21/2003WO2003069766A1 Flat stepping motor
08/20/2003CN2567870Y Output mobile motor
08/19/2003US6608416 Motor and method of manufacturing the same
08/14/2003US20030152815 Microscopic batteries for MEMS systems
08/12/2003US6605883 Multi-phase flat-type PM stepping motor and driving circuit thereof
07/2003
07/30/2003CN1116627C Two-phase electromechanical transducer and electromechanical device including at least one such transducer
07/29/2003CA2236298C Low cost multi-pole motor constructions and methods of manufacture
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