[1] Toray Research Center Inc., Otsu 520-8567, Japan
[2] Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
[3] Department of Material Engineering, University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
[4] AdvanceSoft Corporation, Minato, Tokyo 107-0052, Japan