1. R & D Centre, Murakami Co. Ltd., 1-6-12 Ohnodai, Midori-ku, Chiba 267-0056, Japan
2. Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama, Kanagawa 240-8501, Japan