Patent ID: 8410654

Claim:
A motor comprising: a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof; and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap, wherein the magnetic poles of the stator have laminated bodies formed by stacking sheet-like plates, the laminated bodies have magnetic polar bases and extended portions formed in a manner to bend from the magnetic polar bases into a direction generally parallel to the permanent magnet, the extended portions are provided individually at both sides of the magnetic polar base, a total extending length of the extended portions at both sides in a direction parallel to the permanent magnet is set not to exceed a length of the magnetic polar base in the direction parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content within a range of 1.0 wt-% to 3.0 wt-%.