1. Komaba Institute for Science Graduate School of Arts and Sciences The University of Tokyo 3-8-1 Komaba Meguro-ku, Tokyo 153-8902 Japan
2. Institute for Catalysis Hokkaido University Kita 21 Nishi 10 Kita-ku, Sapporo Hokkaido 001-0021 Japan
3. Graduate School of Chemical Sciences and Engineering Hokkaido University Kita 13 Nishi 8, Kita-ku Sapporo Hokkaido 060-8628 Japan
4. Department of Industrial Chemistry Faculty of Engineering Tokyo University of Science 6-3-1 Niijuku Katsushika-ku, Tokyo 125-8585 Japan
5. Showa Denko K.K. 1-13-9 Shiba Daimon Minato-ku, Tokyo 105-8518 Japan