1. Department of General Systems Studies; Graduate School of Arts and Sciences; The University of Tokyo; Komaba 3-8-1 Meguro-ku Tokyo 153-8902 Japan
2. Research Center for Advanced Science and Technology; The University of Tokyo; Komaba 4-6-1 Meguro-ku Tokyo 153-8904 Japan
3. Department of Advanced Interdisciplinary Studies Graduate School of Engineering; The University of Tokyo; Komaba 4-6-1 Meguro-ku Tokyo 153-8904 Japan
4. Department of Materials Engineering; The University of Tokyo; Hongo 7-3-1 Bunkyo-ku Tokyo 113-8656 Japan
5. Hitachi High-Technologies Corporation; 1040, Ichige Hitachinaka-shi Ibaraki-ken 312-0033 Japan