Dr. Hideaki Murotani (Yamaguchi University / JP; National Institute of Technology, Tokuyama College / JP), Keigo Nakatsuru (Yamaguchi University / JP), Satoshi Kurai (Yamaguchi University / JP), Prof. Dr. Narihito Okada (Yamaguchi University / JP), Yoshiki Yano (Taiyo Nippon Sanso / JP), Shuichi Koseki (Taiyo Nippon Sanso / JP), Guanxi Piao (Taiyo Nippon Sanso / JP), Professor Yoichi Yamada (Yamaguchi University / JP)