○Tatsuya Sehata¹, Tomonori Koda¹, Taichi Nishio¹, Akihiro Nnishioka¹, Motoaki Isokawa² (1.Yamagata University, 2.Dow-Mitsui polychemicals co. ltd)

○Kimitoshi Sato¹, Masataka Santoku² (1.Kokushikan University, 2.Consortium on Development and Promotion for Laser Advanced Welding of Plastics)

○Fuminobu Kimura¹, Yusuke Kajihara¹ (1.The University of Tokyo)

○Hao Chang¹, Shotaro Kadoya¹, Fuminobu Kimura¹, Yusuke Kajihara¹ (1.Tokyo Univ.)