Oliff & Berridge
Spirally layered and aligned printed-circuit armature coil
 An armature coil has sets of unit coil groups, each comprising an even number of unit coils, which are printed and arranged on a belt-like, thin and pliable insulating material to form a printed coil. The printed coil is wound and fixed into a cylindrical shape, the armature coil being featured in that the gap between adjacent conductors of the unit coil groups located on the outer periphery side of the cylindrical shape is set larger than the gap between adjacent conductors of the unit coil groups located on the inner periphery side thereof such that the conductors of respective unit coils are axially arranged to take the same angle in the circumferential direction. 
Minebea Co., Ltd.
Y Y Y H
Y10T Y10T Y10S H02K
additional additional additional inventional
Yuuji Yuzuru Masato Masahiko
Shishido Suzuki Okamoto Fujita