| Patents for H02K 29 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes, semiconductor devices (10,091) |
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| 09/16/1980 | US4223255 Electric wheel |
| 09/02/1980 | US4220879 Brushless DC motor |
| 08/12/1980 | US4217541 Method of accurate control of current and power of a magnetic current and power control device |
| 08/12/1980 | US4217508 DC motor |
| 08/05/1980 | US4216512 Disc recorder with brushless DC motor drive |
| 07/24/1980 | WO1980001525A1 Direct current motor without collector |
| 07/08/1980 | US4211963 Brushless, permanent magnet d-c pulse current controlled, essentially uniform torque dynamo electric machine, particularly motor |
| 07/08/1980 | US4211962 Brushless d-c motor |
| 07/08/1980 | US4211452 Inertia wheel |
| 05/27/1980 | US4204810 Bi-directional pump |
| 04/08/1980 | US4197489 Spindle drive system |
| 04/08/1980 | US4196875 Magnetic tape recording and/or reproducing apparatus |
| 03/25/1980 | US4194743 Record player |
| 02/19/1980 | CA1072194A1 Position coder associated with a variable reluctance machine |
| 02/05/1980 | US4187453 Electric motor drive system |
| 02/05/1980 | US4187441 High power density brushless dc motor |
| 01/09/1980 | EP0006669A1 Variable-reluctance electric machine |
| 01/01/1980 | US4181867 Brushless direct-current motor |
| 11/13/1979 | US4174484 Motor with a disk rotor |
| 10/31/1979 | EP0005078A1 Stepper motors |
| 10/02/1979 | US4169990 Electronically commutated motor |
| 09/19/1979 | EP0004138A1 A pulse operated electric motor |
| 09/11/1979 | US4167692 Brush-less DC motor |
| 09/11/1979 | US4167691 Control arrangement for a brushless motor |
| 08/14/1979 | US4164691 Multiphase brushless DC motor using two Hall-effect generators |
| 08/14/1979 | US4164690 Compact miniature fan |
| 07/24/1979 | US4162435 Method and apparatus for electronically commutating a direct current motor without position sensors |
| 07/24/1979 | US4162399 Optical encoder with fiber optics |
| 07/24/1979 | US4161884 Turn rate indicator of aircraft using gyroscope |
| 07/24/1979 | CA1059211A1 Brushless d.c. motor |
| 07/17/1979 | US4161680 AC rotary machine apparatus |
| 07/10/1979 | US4160797 Assembling carriers from thin flexible graphite foils |
| 06/19/1979 | US4158795 Brushless DC motors |
| 05/22/1979 | US4156168 Electric motor |
| 05/01/1979 | CA1053751A1 Field winding assembly of a synchronous alternator |
| 04/10/1979 | CA1052433A1 Cylindrical core with toroidal windings at angularly spaced locations on the core, and method of producing the same |
| 04/03/1979 | CA1051969A1 Brushless direct current motor |
| 12/19/1978 | US4130769 Brushless DC motor |
| 11/28/1978 | US4127799 Apparatus for damping rotation of turntable |
| 11/14/1978 | US4125792 Brushless D-C motor |
| 10/10/1978 | US4119895 Brushless d.c. motor with precise speed control |
| 09/19/1978 | US4115715 Brushless d. c. motor |
| 08/29/1978 | US4110672 Position coder used with a machine of variable reluctance |
| 08/29/1978 | US4110669 Synchronous machine control system |
| 08/29/1978 | CA1037562A1 Apparatus for detecting the direction of a magnetic field |
| 08/22/1978 | US4109170 Electric motor having frequency generator |
| 08/15/1978 | US4107587 Three-phase DC motor having non-superimposed armature coils |
| 07/25/1978 | US4103197 Cylindrical core with toroidal windings at angularly spaced locations on the core |
| 07/04/1978 | US4099104 Brushless d-c motor system |
| 06/20/1978 | US4096420 Control circuit for a brushless D.C. motor |
| 06/20/1978 | US4096419 Electric motors |
| 06/13/1978 | US4095148 Direct current motors |
| 06/06/1978 | US4093897 Electric motor |
| 05/30/1978 | US4092572 Brushless D.C. motor driving system |
| 05/09/1978 | US4088908 Photoelectric position sensor of step motor |
| 04/25/1978 | US4086519 Hall effect shaft angle position encoder |
| 04/11/1978 | US4084118 Synchrotransmission system controlled by Hall effect |
| 03/28/1978 | US4081724 Variable reluctance electric motor |
| 03/21/1978 | US4080553 Electric motor system |
| 02/14/1978 | US4074173 Electric machine |
| 02/07/1978 | US4072881 Axial-air-gap type semiconductor electric motor |
| 12/27/1977 | US4065706 Brushless D.C. motor |
| 10/11/1977 | US4053829 Apparatus for detecting the direction of a magnetic field to sense the position of, for example, a rotary element or the like |
| 09/06/1977 | US4047084 Semiconductor motor controlled for energization by a single position sensing element |
| 08/09/1977 | US4040605 Magnetic stirring apparatus |
| 08/02/1977 | US4039912 Three-phase brushless dc motor using two hall effect devices |
| 07/12/1977 | US4035699 Brushless direct current machine and method of controlling the same |
| 06/14/1977 | US4030005 Brushless d.c. motor having rotor position-dependent control means |
| 05/24/1977 | US4025831 Brushless direct current motor |
| 05/17/1977 | US4024446 Motor control |
| 04/12/1977 | US4016713 Drive for high-speed axles or shafts of spindles |
| 03/08/1977 | US4011487 Solid state commutator motor with internally powered armature |
| 03/08/1977 | US4011475 Torque equalized brushless permanent magnet rotor motor |
| 02/15/1977 | US4008422 Fractional horsepower brushless direct current motor |
| 02/08/1977 | US4007390 Brushless D-C motor |
| 01/25/1977 | US4005347 Electronically commutated motor and method of making same |
| 01/18/1977 | US4004202 Brushless D.C. motor |
| 11/30/1976 | US3995203 Reluctance-type arrangement |
| 10/26/1976 | US3988654 Miniature brushless motor |
| 10/26/1976 | US3988024 Turntable apparatus |
| 10/12/1976 | US3986086 Control circuit for brushless D-C motor |
| 08/31/1976 | US3978356 Self-starting synchronous motor with permanent magnet rotor |
| 08/03/1976 | US3973153 Rotor for an electronically controlled micromotor |
| 06/01/1976 | US3961211 Gyroscope motor |
| 05/11/1976 | US3956679 Brushless A.C. synchronous motors |
| 05/11/1976 | US3956678 Electrodynamic system comprising a variable reluctance machine |
| 04/27/1976 | US3953751 Motor and mounting thereof |
| 04/06/1976 | US3949346 Magnetoresistive element |
| 03/02/1976 | US3942083 Brushless motor |
| 03/02/1976 | US3942054 Stator winding for a miniature brushless DC motor |
| 02/10/1976 | US3938014 Brushless d-c motor |