| 摘要 |
The present invention aims at providing a motor having short axial length and large torque. For an object concerned, a motor according to the present invention has the structure of comprising an approximately disk-shaped rotor that is dividedly magnetized so that at least one plane may become a plurality of polarities in a rotational direction, a coil that has an inner circumferential surface facing an outer circumferential surface of the rotor, or an outer circumferential surface facing an inner circumferential surface of the rotor, a first magnetic pole portion that extends in a radial direction of the rotor and is magnetized by the coil while facing a surface of the rotor, and a second magnetic pole portion that is magnetized by the rotor.
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