1. Prof. T. Kawauchi, S. Matsumura; Department of Materials Chemistry; Faculty of Science and Technology; Ryukoku University; Oe-cho, Seta Otsu Shiga 520-2194 Japan
2. T. Osawa, T. Mori, Prof. T. Takeichi; Department of Environmental and Life Sciences; Toyohashi University of Technology; Tempaku-cho Toyohashi Aichi 441-8580 Japan
3. Prof. N. Furukawa; Department of Chemical and Biological Engineering; Sasebo National College of Technology; Okishin-cho Sasebo Nagasaki 857-1193 Japan
4. Dr. K. Ishikawa, Dr. K. Iwasaki; Functional Chemicals R&D Laboratories; Nippon Kayaku Co. Ltd.; 31-12 Shimo 3-chome Kita-ku Tokyo 115-8588 Japan