1. Department of Biobased Materials Science, Kyoto Institute of Technology, Kyoto 606-8585, Japan
2. Bridgestone, Kodaira, Tokyo 187-8531, Japan
3. High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
4. Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, Sayo-cho, Hyogo 679-5198, Japan
5. Department of Material Chemistry, Kyoto University, Kyoto 615-8510, Japan