Patent ID: 8823242

Claim:
A disc motor comprising: an output shaft; a coil disc that is substantially disc-shaped, the coil disc including an at least two-layer structure having a first layer and a second layer, the coil disc including a coil having a plurality of partial coil sections each extending outward in a radial direction of the output shaft and connecting sections each connecting together two partial coil sections; an electric current supplying section configured to supply an electric current to the coil; and a magnet disposed in opposition to the plurality of partial coil sections, wherein: the plurality of partial coil sections includes first partial coil sections formed on the first layer and second partial coil sections formed on the second layer, the first partial coil sections provide a total number different from that of the second partial coil sections, and the first partial coil sections have a width in a circumferential direction of the coil disc different from a width of the second partial coil sections.