1. Kyoto University, C1-220 Kyotodaigaku-katsura, Nishikyo-ku, Kyoto, Japan.
2. Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo, Japan.
3. Osaka Research Institute of Industrial Science and Technology, 2-7-1 Ayumino Izumi, Osaka, Japan.
4. Kyoto University, C1-455 Kyotodaigaku-katsura, Nishikyo-ku, Kyoto, Japan.