1. Graduate School of Life Science and Systems Engineering; Kyushu Institute of Technology; 2-4 Hibikino, Waka-matsu-ku Kitakyushu 808-0196 Japan
2. Department of Electrical and Electronic Engineering; Ritsumeikan University; 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
3. Department of Electrical and Electronic Engineering; University of Miyazaki, Gakuenkibanadainishi; Miyazaki Miyazaki Prefecture 899-2192 Japan
4. Department of Engineering Science; The University of Electro-Communications; 1-5-1 Chofugaoka Chofu Tokyo 182-8585 Japan