1. Department of Chemical Engineering; Kyushu University; 744 Motooka Fukuoka 819-0395 Japan
2. Department of Electrical Engineering and Information Systems; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
3. Japan Science and Technology Agency; 4-1-8 Honcho Kawaguchi-shi Saitama 332-0012 Japan
4. Department of Chemistry; University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
5. Department of Electrical Engineering; University of California; 420 Westwood Plaza Los Angeles CA 90095 USA