| Patents for H02K 41 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path (10,066) |
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| 10/03/1990 | EP0390519A1 Electromagnetic force valve driving apparatus |
| 10/03/1990 | EP0390422A1 Valve stepping drive apparatus |
| 09/25/1990 | CA1274574A1 Linear motor car system |
| 09/20/1990 | WO1990010931A1 Voice coil actuator |
| 09/20/1990 | WO1990007220A3 Electrically switched synchronous motor drive |
| 09/19/1990 | EP0388087A2 Linear actuator for a disk file |
| 09/18/1990 | US4958115 Capacitively commutated brushless DC servomotors |
| 09/12/1990 | EP0386429A2 Low speed brushless electric motor |
| 09/11/1990 | US4956735 Actuator magnetic circuit |
| 09/09/1990 | CA2007998A1 Low speed burshless electric motor |
| 09/07/1990 | WO1990009948A1 Mine shaft conveyance system |
| 09/05/1990 | EP0385313A1 Apparatus for adjusting air gap in toroidal type linear motor |
| 09/05/1990 | EP0385254A1 Air gap device for toroidal linear motor |
| 09/04/1990 | US4954735 Linear actuator |
| 09/04/1990 | US4953470 Attraction type magnetic levitation vehicle system |
| 08/09/1990 | WO1990009059A1 Dielectric micromechanical element |
| 08/09/1990 | WO1990009055A1 Linear motor propulsion system |
| 08/07/1990 | US4946353 External stator rolling rotor scroll compressor |
| 07/31/1990 | US4945268 Permanent magnet type linear pulse motor |
| 07/17/1990 | US4942597 X-ray scanner comprising a linear electric driving motor |
| 07/17/1990 | CA1271802A1 Variable reluctance polyphase electric motor |
| 07/12/1990 | WO1990007638A1 Device for step-driving valves |
| 07/12/1990 | DE3900511A1 Automatische guttransportvorrichtung mit linearmotorgetriebenen transportelementen Automatic guttransportvorrichtung with linear motor driven transport elements |
| 07/11/1990 | WO1990008086A1 Automatic goods transport device with transport elements driven by a linear motor |
| 07/11/1990 | CA2045557A1 Automatic goods transport device with transport elements driven by a linear motor |
| 07/04/1990 | EP0376129A1 Electric motor |
| 07/03/1990 | CA1271238A1 Linear motor for vehicles, trains in particular, having a trough armature spread along the vehicle path |
| 06/28/1990 | WO1990007220A2 Electrically switched synchronous motor drive |
| 06/28/1990 | WO1990007219A1 Motor |
| 06/28/1990 | WO1990007215A1 Motor-driven unit with constant output and alternating vertical movement for step by step lifting a load |
| 06/27/1990 | EP0374805A2 Electronically commutated synchronous driving motor |
| 06/27/1990 | EP0374693A1 Slide table |
| 06/20/1990 | EP0373987A1 Strong magnetic thrust force type actuator |
| 06/19/1990 | US4935676 Method of moving head to correct for hysteresis |
| 06/13/1990 | EP0372574A1 Guide rail support structure for elevator system |
| 06/13/1990 | EP0372387A2 Linear motor supporting apparatus for vehicles |
| 06/06/1990 | EP0371661A2 Capacitively commutated brushless DC servomotors |
| 06/06/1990 | EP0371505A2 Linear driving apparatus |
| 05/31/1990 | DE3840367A1 Direct drive |
| 05/16/1990 | EP0367870A1 Electric machines |
| 05/16/1990 | CN1008036B Dc straight-line motor |
| 05/01/1990 | US4922143 Linear unit |
| 05/01/1990 | US4922142 Method and apparatus for controlling the carriage of a linear motor |
| 04/26/1990 | DE3934868A1 Magnetic disc drive unit - has multiple heads on arms moved radially across disc by moving coil actuator |
| 04/24/1990 | US4920292 Motor having rotor capable of both stepped rotary and axial shift motions |
| 04/24/1990 | US4919054 Conveying apparatus |
| 04/24/1990 | US4918835 Apparatus for completing a linear motor stator |
| 04/10/1990 | US4916342 Rotary actuator |
| 04/10/1990 | US4916340 Movement guiding mechanism |
| 04/04/1990 | EP0361670A2 Electromagnetic actuator |
| 04/04/1990 | CN1041028A Anchor-bonded composite structures and method of production thereof |
| 04/03/1990 | US4914330 Low speed brushless electric motor |
| 03/27/1990 | US4912746 Linear DC brushless motor |
| 03/27/1990 | US4912343 Electromagnetic actuator |
| 03/21/1990 | CN1007310B Shield type step motor and low speed synchronous motor |
| 03/13/1990 | US4908558 Spherical motion simulator |
| 03/13/1990 | US4908533 Transporting apparatus |
| 03/07/1990 | EP0357014A2 Linear pulse motor having means for locking up an armature thereof |
| 03/06/1990 | US4906881 Nutating motor with automatic engagement and disengagement of hand wheel with output shaft |
| 03/06/1990 | US4906878 Fluid circulated linear motor for robotic systems |
| 02/20/1990 | US4902996 Movable coil driving unit |
| 02/13/1990 | US4900965 Lightweight high power electromotive device |
| 02/13/1990 | US4900237 Rolling rotor motor balancing means |
| 02/06/1990 | CA1265568A1 Linear stepping motor |
| 01/30/1990 | US4897582 Linear dc motor vibration controller |
| 01/30/1990 | CA1264963A1 Variable speed, variable motion, electrically operated vibrator for screening machinery |
| 01/24/1990 | EP0352189A1 Strong magnetic thrust force type actuator |
| 01/23/1990 | US4895505 Electrically operated injection molding machine |
| 01/18/1990 | DE3824257A1 Linear magnet drive for turbochargers with buffering |
| 01/17/1990 | EP0351329A1 A high-speed non-contact linear motor with magnetic levitation |
| 01/17/1990 | EP0350899A2 Anchor-bonded composite structures and method of production thereof |
| 01/17/1990 | EP0350727A2 Two-wire winding of a synchronous three-phase linear motor |
| 01/10/1990 | CN1038729A Method and apparatus for controlling carriage of linear motor |
| 01/09/1990 | US4892467 Balanced rolling rotor motor compressor |
| 01/03/1990 | EP0348851A1 A high specific thrust linear motor |
| 12/28/1989 | WO1989012562A1 Method and apparatus for controlling the carriage of a linear motor |
| 12/26/1989 | US4890023 Linear induction motor systems |
| 12/20/1989 | EP0347080A1 Linear actuator |
| 12/20/1989 | CN2049840U 单相可逆直线感应电动机 Single-phase reversible linear induction motor |
| 12/19/1989 | US4888506 Coil in magnetic gap in ferromagnetic cylinder |
| 12/13/1989 | EP0345915A1 Winding, stator and pump |
| 12/12/1989 | CA1263892A1 Motor with "split" back-magnet array |
| 11/29/1989 | EP0343655A1 Linear driving apparatus |
| 11/28/1989 | US4883994 Linear motor |
| 11/22/1989 | CN1037435A Linear motor propulsion system |
| 11/21/1989 | US4882508 Dual flux path voice coil motor |
| 11/07/1989 | US4879482 Linear pulse motor |
| 10/31/1989 | US4876765 Door apparatus with magnetic support |
| 10/11/1989 | CN1005441B Linear motion electric machine with electronic commutation |
| 10/05/1989 | DE3809736A1 Linear motor device for a door drive |
| 10/04/1989 | EP0335766A1 Releasable linear step by step motor |
| 09/27/1989 | EP0334645A1 Linear motor and linear driving device employing said linear motor |
| 09/27/1989 | CN1035869A Polymer of unusual materials and their matutacturing methods |
| 09/26/1989 | US4870306 Method and apparatus for precisely moving a motor armature |
| 09/20/1989 | EP0333539A1 Disconnectible linear stepping motor with a recentered rotor |
| 09/20/1989 | EP0333323A1 A dual magnetic flux path linear voice coil motor |
| 09/19/1989 | US4868432 Multi-coil actuator with end cap flux carrier |
| 09/19/1989 | US4868431 Linear motor with an elongated core using oppositely polarized magnets to maximize perpendicular flux lines |
| 09/19/1989 | US4867652 Balanced rolling rotor motor compressor |
| 09/13/1989 | CN1035592A Single-phase ac linear motor |