1. Corporate Research & Development Division; Takasago International Corporation; 1-4-11 Nishi-Yawata Hiratsuka, Kanagawa 254-0043 Japan
2. Department of Chemical Science and Engineering, School of Materials and Chemical Technology; Tokyo Institute of Technology; 2-12-1-E4-1 O-okayama Meguro-ku, Tokyo 152-8552 Japan