| 摘要 |
A drive apparatus having a shortened axial dimension. First and second magnets are each formed into a semi-cylindrical shape and each provided with a magnetized pattern portion. A rotor yoke includes a shaft portion and a magnetic pole portion facing magnetized surfaces of the magnets. First and second stator yokes are each disposed to cooperate with the rotor yoke to sandwich therebetween a part of the first or second magnet where the magnetized pattern portion is formed. First and second coils each magnetize a part of the magnetic pole portion of the rotor yoke which faces the first or second stator yoke.
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