1. Division of Biotechnology and Macromolecular Chemistry
2. Faculty of Engineering
3. Hokkaido University
4. Sapporo 060-8628
5. Japan
6. Graduate School of Chemical Sciences and Engineering
7. Faculty of Pharmaceutical Sciences
8. Sapporo 060-0812
9. Department of Applied Chemistry
10. Graduate School of Engineering
11. Nagoya University
12. Nagoya 464-8603