1. Department of Information Systems Engineering, Osaka Sangyo University, 3-1-1 Nakagaito, Daito, Osaka 574-8530, Japan,
2. TOYOBO Co., Ltd. Research Center, 1-1, Katata 2-Chome, Otsu, Shiga 520-0292, Japan
3. Industrial Technology Center of Wakayama Prefecture, 60 Ogura, Wakayama 649-6261, Japan