1. Sagami Chemical Research Institute, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan
2. JNC Corporation, 1-1 Noguchi-Cho, Minamata, Kumamoto 867-8501, Japan
3. JNC Corporation, Shin-Otemachi Bldg. 2-1 Otemachi 2-Chome Chiyoda-ku, Tokyo 100-8105, Japan