1. Department of Applied Chemistry, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579
2. Yamamoto Chemicals Inc., 1-43 Yugecho-Minami, Yao, Osaka 581-0034
3. Research Institute for Electronic Science (RIES), Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021
4. WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577