〇Michiyo Inoue1, Kengo Iwase1, Satoshi Watanabe1, Michitaka Yamaguchi1, Yuki Nagao1, Yoshinori Endo1, Takashi Wakabayashi1, Takahiro Endo2, Saburo Hosokawa3, Tsunehiro Tanaka2
(1. Mitsui Mining & Smelting Co., Ltd., 2. Kyoto Univ., 3. National Univ. Corporation Kyoto Institute of Technology)