1. Shipro Kasei Kaisha, LTD., Mikuni-cho, Sakai-shi, Fukui 913-0036, Japan
2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Naka-ku, Sakai 599-8531, Japan
3. Shin-Nakamura Chemical Co., LTD., Wakayama-shi 640-8390, Japan