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| Number | Title | Issue Date |
| 8058762 | Rotor, axial gap type motor, method of driving motor, and compressor A technique of employing a rotor having anti-saliency and being rotatable about a predetermined axis in an axial gap type motor is provided. A plurality of magnets are disposed annularly on a substrate with polarities being symmetric around a shaft hole. For instanc... | 11/15/2011 |
| 7567004 | Motor-generator system with a current control feedback loop A motor-generator system with a current control feedback loop for generating electrical energy in stationary, portable, and automotive applications. The generator includes a housing defining an interior space and including a first portion and a second portion; an el... | 07/28/2009 |
| 7355312 | Brushless Motor Small brushless motor having high output and small torque ripple. The brushless motor includes induction voltage adjusting means. With this, induction voltage of each phase of the stator is adjusted into a flatly spread waveform having no abrupt variation where odd-... | 04/08/2008 |
| 7339294 | Vehicular starting and charging rotary electric machine A vehicular starting and charging rotary electric machine includes a rotor, a stator, brackets, a brush, and a rotation detection sensor. The rotor has a field winding. The stator has a stator winding. The brackets supports the rotor and the stator. One end of the b... | 03/04/2008 |
| 7173357 | Axial gap type dynamo-electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using, for example, a strong magnet by reducing an energy loss by an induced current. An axial gap t... | 02/06/2007 |
| 7126309 | Motor The electric machine of the present invention comprises a first coil group containing a plurality of coils and a magnet group. The first coil group is classified into M phase sub coil groups, with the coils of the sub coil groups aligned one at a time in sequence at... | 10/24/2006 |
| 7105974 | AC motor having stator windings formed as loop coils, and control apparatus for the motor A synchronous AC motor has a stator with stator poles arranged as a plurality of circumferentially extending stator pole groups, with each stator pole group having a pair of corresponding circumferentially extending loop-configuration stator windings disposed adjace... | 09/12/2006 |
| 6891295 | Flywheel magneto generator A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w... | 05/10/2005 |
| 6455969 | Multiple layer double rotor single stator skew symmetry permanent magnet rotating motor A single-stator-double-rotor rotating motor has one upper-layer rotor, one intermediate-layer armature and one lower-layer rotor. The upper-layer rotor and lower-layer rotor are embedded with the same number of magnets to form a magneto type magnetic pole... | 09/24/2002 |
| 6211593 | Synchronous motor with permanent magnet provided on magnetic pole end A synchronous motor comprising permanent magnets (35, 41) with N poles arranged at ends of N magnetic poles of a rotor, permanent magnets (38, 34) with S poles arranged at ends of S magnetic poles of the rotor, magnetic pole portions (40) made of soft mag... | 04/03/2001 |
| 5177054 | Flux trapped superconductor motor and method therefor A motor (10) comprises a stator (14) having an associated stator winding (24) formed of a conventional material such as copper, or of a superconductive material. A rotor (12) for the motor is also formed of a superconductive material. The rotor is placed ... | 01/05/1993 |
| 4529903 | Pulse generators combined with micromotors A pulse generator combined with a micromotor is constructed by a disc shaped rotary magnet secured to the shaft of the motor and magnetized in the axial director, a rotary yoke made of magnetic material and provided with a plurality of equally spaced magn... | 07/16/1985 |
