Akira Chiba,     Tokyo University of Science, 2641 Yamazaki Noda, Chiba, Japan

David G. Dorrell,     University of Glasgow, Glasgow, UK

Tadashi Fukao,     Musashi Institute of Technology, 1-28-1 Tamatsutsumi Setagaya, Tokyo, Japan

Osamu Ichikawa,     Polytechnic University, 4-1-1 Hashimotodai Sagamihara, Kanagawa, Japan

Masahide Oshima,     Tokyo University of Science Suwa, 5000-1 Toyohira Chino, Nagano, Japan

Masatsugu Takemoto,     Musashi Institute of Technology, 1-28-1 Tamatsutsumi Setagaya, Tokyo, Japan