1. 1) K. Murakami: Parametric Motor (in Japanese), p. 1 (Ohmsha, Tokyo, 1989).
2. 2) K. Ide, O. Ichinokura, and K. Murakami: The Papers of Technical Meeting on Magnetics, IEE Japan, MAG-87-99 (1987) (in Japanese).
3. 3) K. Ide, O. Ichinokura, S. Kikuchi, and K. Murakami: The Papers of Technical Meeting on Magnetics, IEE Japan, MAG-87-139 (1987) (in Japanese).
4. Trial Manufacture of a Parametric Motor Using a Laminated Iron Core.
5. Relation between Width of Inner Ring Core and Characteristics of Laminated Core Parametric Motor Using Asymmetric Stator.