1. Japan Atomic Energy Agency, 4-33 Muramatsu, Tokai-mura, Naka-gun, Ibaraki 319-1194, Japan.
2. QJ Science Limited, Yokohama Portside Building 3F, 8-1 Sakae-cho, Yokohama Kanagawa-ku, Kanagawa 221-0052, Japan.
3. Kajima Corporation, 3-8 Motoakasaka 1-chome, Minato-ku, Tokyo 107-8477, Japan.
4. Quintessa Limited, Newtown Road, Henley-on-Thames, Oxfordshire, RG9 1HG, United Kingdom.