Katsuya Nagata
National Institute for Resources and Environment (MITI) & Waseda University, Japan
Masafumi Katsuta
Waseda University, faculty of science and engineering, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo, 169-8555, JAPAN
Kiyoshi Tanaka
NEC Corporation, Yokohama Plant, Japan
Ichiro Mase
NEC Corporation, Yokohama Plant, Japan
Kazumori Hama
NEC Corporation, Yokohama Plant, Japan