To cope with flattening and reduction in size of an electromagnetic induction machine and allow greater output and mass-production thereof with a reduction in cost as well.

The structure includes a coil disc 1 where conductor patterns 12 serving as coils are formed and through holes 13 are perforated at the terminals of the conductor patterns 12, wherein a commutator disc 2 where conductor patterns 22 serving as commutator pieces are formed and through holes 23 are perforated at the terminals of the conductor patterns 22, and the coil disc 1 and the commutator disc 2 are laminated coaxially, the conductor patterns 12 of the coil disc 1 and the conductor patterns 22 of the commutator disc 2 are connected at the through holes 13, 23.