1. Japan Advanced Institute of Science and Technology, School of Material Science, 1-1 Asahidai, Nomi city, Ishikawa 923-1292, Japan
2. Nitto Denko Corporation, 1-1-2 Shimohozumi, Ibaraki, Osaka 567-8680, Japan
3. Center for Advanced Science and Innovation, Venture Business Laboratory, Osaka University, Suita, Osaka 565-0871, Japan
4. Department of Physics, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
5. Japan Science and Technology Agency, Precursory Research for Embryonic Science and Technology