1. MURORAN INSTITUTE OF TECHNOLOGY, Division of Sustainable and Environmental Engineering(27-1, Mizumoto-cho, Muroran-shi, Hokkaido 050-8585, Japan)
2. SUMITOMO METAL MINING SIPOREX CO., LTD, Engineering Department Mie Division(1117-11, Seki-choege, Kameyama-shi, Mie 519-1106, Japan)
3. SUMITOMO METAL MINING SIPOREX CO., LTD, Engineering Department(5-11-3, Shinbashi, Minato-ku, Tokyo 105-0004, Japan)
4. MURORAN INSTITUTE OF TECHNOLOGY(27-1, Mizumoto-cho, Muroran-shi, Hokkaido 050-8585, Japan)