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) |
---|
01/06/1998 | US5705864 Stepping motor |
12/30/1997 | US5703419 Stepper motor with shortened axial length |
12/24/1997 | WO1997049164A1 Stepping motor and method of manufacturing a yoke |
12/23/1997 | US5701047 Electric fan motor |
12/18/1997 | WO1997048173A1 Stepping motor and method for assembling the same |
12/17/1997 | EP0813287A2 Switched reluctance motors |
12/17/1997 | EP0812578A1 Motor/angle hand-piece assembly with a stepping motor |
12/16/1997 | US5698920 Small electric motor |
12/16/1997 | CA2036911C Energization coil device, a method of making such a device and an electromagnetic micromotor fitted therewith |
12/11/1997 | WO1997047075A1 Piezoelectric linear step motor |
12/11/1997 | WO1997047069A1 Stepping motor |
12/11/1997 | DE19622809A1 Lifting and rotating device e.g. for special precision machines |
12/10/1997 | EP0812054A2 Hybrid stepping motor |
12/10/1997 | EP0811269A1 Two-phase motor, particularly a time piece motor or a motor for driving the hand of a display |
12/10/1997 | EP0685121A4 Field weakening for a doubly salient motor with stator permanent magnets. |
12/03/1997 | CN1166719A Motor and advancing device |
12/03/1997 | CN1166718A Motor for use in information recording device |
11/25/1997 | US5691583 Stepping motor with internal power connections |
11/18/1997 | US5689746 Optical apparatus |
11/18/1997 | US5689145 Stator structure that removes metal particles from the stator structure |
11/12/1997 | EP0806769A2 Motor for use in information recording device |
11/11/1997 | US5686805 Repulsion motor |
11/11/1997 | US5685062 Self-assembly fabrication method for planar micro-motor |
11/05/1997 | CN1164142A Electromecanic transducer having multipolar permanent magnets |
11/04/1997 | US5684349 Electromagnetic rotary actuator |
10/29/1997 | CN1163503A Hybrid-type stepping motor |
10/22/1997 | EP0802607A1 Stepping motor |
10/17/1997 | CA2202850A1 Dual-sectioned switched reluctance motor |
10/15/1997 | EP0801462A1 Device generating three-phase position detecting signal with two coils |
10/15/1997 | EP0801459A1 Motor and linear moving device |
10/14/1997 | US5677581 Stepping motor with protruding pole teeth to increase detent torque |
10/08/1997 | EP0800258A2 Hybrid-type stepping motor |
10/07/1997 | US5674169 Tunnel type or dragon-gate type processing system assembled with selected elements and its related interface means |
10/01/1997 | CN1036039C Hybrid stepping motor, driving method for the same and coil vinding method for the same |
09/17/1997 | CN1159673A Claw polar type step motor with one stator |
09/16/1997 | US5668430 Dual-sectioned switched reluctance motor |
09/10/1997 | EP0794359A2 Motor structure |
09/03/1997 | CN1158513A Step motor |
08/20/1997 | EP0790540A1 Electromagnetic transductor with multipolar permanent magnets |
08/13/1997 | CN1035645C Electromagnetic motor with two rotation senses particularly intended for timepiece |
08/06/1997 | EP0788214A1 Motor structure |
07/16/1997 | EP0526660B1 Apparatus for controlling load numerically |
07/15/1997 | US5648692 Stator yoke and method of producing same |
07/08/1997 | US5646464 Planar micro-motor with bifilar micro-coils |
07/03/1997 | WO1997023943A1 Two-phase motor, particularly a time piece motor or a motor for driving the hand of a display |
07/03/1997 | DE19654227A1 Stepper motor e.g. for quartz clock drive motor or for motor vehicle EGR valve |
06/25/1997 | EP0780958A2 Hybrid-type stepping motor |
06/25/1997 | EP0780956A1 Permanent magnet rotor for claw-pole stepping motor |
06/12/1997 | WO1997021266A1 Low cost multi-pole motor constructions and methods of manufacture |
06/04/1997 | EP0777314A2 Motor structure |
06/04/1997 | EP0777313A2 Motor and electronic parts-mounting apparatus incorporating the motor |
05/21/1997 | EP0774824A1 Stepper motor |
05/06/1997 | US5627424 Twin bobbin four pole motors and methods for making same |
05/06/1997 | US5627418 Combined linear-rotary stepping motor |
04/29/1997 | US5625239 Method and apparatus for sensing relative position between two relatively rotatable members using concentric rings |
04/24/1997 | WO1997015108A1 Staggered pole switched reluctance motor |
04/24/1997 | DE19539138A1 Motor with two stator windings especially for vehicular instrumentation |
04/23/1997 | EP0769841A2 Electromotor and measuring device, in particular for indicating instrument in vehicle |
04/17/1997 | WO1997014209A1 Electrical machines having compensated field reaction |
04/16/1997 | CN1147719A Motor structure |
04/16/1997 | CN1147717A Multipolar motor with two rotors |
04/10/1997 | WO1997013317A1 Device generating three-phase position detecting signal with two coils |
04/02/1997 | EP0766271A1 Magnetic attraction driving engine using permanent magnet |
04/02/1997 | CN2251221Y Linear step electric machine |
03/26/1997 | EP0764780A2 Flow quantity valve controller and manufacturing method for flow quantity valve |
03/26/1997 | EP0656157B1 Electric fan motor |
03/19/1997 | EP0763880A1 Electrical machine |
03/12/1997 | EP0762618A1 Electrical machine |
03/11/1997 | US5610782 Floppy disk drive device |
03/11/1997 | US5610492 Method and apparatus for induced pole stepper motor |
02/19/1997 | EP0758814A1 Hybrid stepping motor |
01/28/1997 | US5598046 Stepping motor with different sized or missing teeth |
01/22/1997 | CN2245827Y Deceleration claw type stepping motor |
01/22/1997 | CN1033883C Polyphase electromagnetic transducer having a multipolar permanent magnet |
01/16/1997 | WO1997001882A1 Axial field motor with stationary coil about a central rotor |
01/15/1997 | EP0753932A2 Motor structure |
01/15/1997 | EP0753927A2 Claw pole type synchronous motor |
01/15/1997 | CN1033836C Miniature motor |
01/07/1997 | US5592037 Analog display device with micro-motor drive means |
01/02/1997 | DE19624655A1 Stepper motor e.g. for directly driving robot hand finger linkage without reducing mechanism |
12/17/1996 | US5585680 Electromagnetic stepper motor |
12/11/1996 | EP0748032A2 Motor structure |
12/05/1996 | WO1996038904A1 Electromagnetic actuator magnetically locked into two or more stable positions |
12/05/1996 | WO1996038903A1 A self-starting brushless electric motor |
12/04/1996 | EP0746084A1 Multipolar two-rotor motor |
11/26/1996 | US5579290 Epicycloidal step motor |
11/07/1996 | WO1996035255A1 Low-cost synchronous or stepper motor |
11/05/1996 | US5572270 Optical apparatus having a motor control device |
10/31/1996 | DE19616798A1 Stepping motor with reduced axial length |
10/30/1996 | EP0740399A1 a stepping motor |
10/23/1996 | EP0616739B1 Doubly salient reluctance machines |
10/23/1996 | CN1033120C Electromagnetic transducer with multipolar permanent magnet |
10/22/1996 | US5567999 Bobbin structure for electromagnetic coil assembly |
10/03/1996 | WO1996030993A1 Stepping motor |
09/25/1996 | EP0733279A1 Repulsion motor |
09/25/1996 | CN1131840A Polyphase multipolar stepping motor |
09/18/1996 | CN1131355A Small electric motor |
09/10/1996 | US5554903 Rotary electric machine |
08/28/1996 | EP0608424B1 Rotary electric machine |
08/28/1996 | CN1129861A Epicycloidal step motor |