1. JASCO Technical Research Laboratories Corporation, 2097-2, Ishikawa, Hachioji, Tokyo 192-0032 Japan (J.K.); Department of Mechanical Engineering, Faculty of Engineering, University of Tokushima, Minami-Jyosanjima-cho-2, Tokushima 770-8506 Japan (T.I.); and Osaka Electro-Communication University, 18-8, Hatsu-cho, Neyagawa, Osaka, 572-8530 Japan (S.M.)