○Nobunao Okimoto¹, Saburo Yamagata¹, Hisafumi Mizukoshi¹, Hideo Sugimoto², Naoki Sakakibara² (1. Mitsubishi Materials Corporation, 2. Obayashi Corporation)

○YOSHISHIGE KAWABE¹, YASUHIDE SAKAMOTO¹ (1. National Institute of Advanced Industrial Science and Technology )

○Yohei Asada², Koichi Sato², Yuji Kawamura¹, Chiharu Tokoro³, Kenichi Muto³, Saburo Yamagata¹, Megumi Kondo¹ (1. Mitsubishi Materials Corporation, 2. Mitsubishi Materials Techno Corporation, 3. Waseda University)