Affiliation: | (1) Department of Physical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, 560 Osaka, Japan;(2) Research Development Division, Nissin Electric Co. Ltd., Umezu-Takase-cho, Ukyouku, 615 Kyoto, Japan;(3) Research and Headquarters Kubota LTD., Amagasaki, 661 Hyogo, Japan;(4) Faculty of Science, Kwansei-Gakuin University, Nishinomiya, 662 Hyogo, Japan |