^○Ryota Ishiguro, Naoya Yoshitake, Yusaku Seimiya, Shumpei Ozawa (Chiba Inst. of Tech.)

^○Seung Hwan Shin¹, Sakiko Kawanishi¹, Sohei Sukenaga¹, Junichi Takahashi², Hiroyuki Shibata¹ (1.Tohoku Univ., 2.Sumitomo Metal Mining)

^○Yoshiki Takeuchi, Kazuki Morita, Takeshi Yoshikawa, Hisao Esaka (The Univ. of Tokyo)