Patent ID: 7626301

Claim:
An electric rotating machine having permanent magnets comprising a rotor having a plurality of permanent magnets, a stator core disposed in opposite relation with respect to rotating the rotor, and a stator winding wound around the stator core, wherein the stator core is constituted by a yoke and a plurality of teeth portions disposed to the yoke, the teeth portions being projected towards the inner periphery of the rotor, and wherein the teeth portions are made of compacted magnetic particles of amorphous magnetic material and another magnetic material for filling gaps of the amorphous magnetic material, and wherein a relationship between the number S of slots formed in the stator core and the number P of poles of the rotor is represented by P=S±1, or when (2/3)S<P<(4/3)S, S=6n or P≦6n−2 or P≧6n+2, where P is a multiple of 2, and n is an integer of 2 or more.