1. Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
2. Graduate School of Global Environmental Studies, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
3. Konica Minolta, Inc., 2970 Ishikawa-machi, Hachioji, Tokyo 192-8505, Japan