1. Waseda University, 27 Waseda-cho, Shinjuku-ku,Graduate School of Creative Science and Engineering,Tokyo,Japan,162-0042
2. Constoruction Machinery Manufacturing Engineering Sec.,Awazu Plant, Komatsu Ltd, Tsu 23 Futsu-machi, komatsu-shi,Manufacturing Engineering Dept.,ishikawa,Japan,923-0392
3. Waseda University, 27 Waseda-cho, Shinjuku-ku,Faculty of Science and Engineering,Tokyo,Japan,162-0042