*Keita KITAZAWA¹, Naofumi Ohtsu², Mitsuhiro Hirano² (1. Kitami Inst. of Technol.(M), 2. Kitami Inst. of Technol.)

*Xiao Wang¹, Weiwei Zhou¹, Naoyuki Nomura¹ (1. Department of Materials Processing, Graduate School of Engineering, Tohoku University)

*Hatakeyama Kosei¹, Washihira Naoto¹, Kobayashi Mako¹, Fujii Sho², Tanabe Tadao³, Kimura Tsuyoshi⁴, Yamamoto Masaya¹ (1. Grad.Sch.of Eng., Tohoku Univ., 2. Facul. of. Sci, Yamagata Univ., 3. College. of. Eng and Design, Shibaura Institute of Technology, 4. Dept. of. Biomed Eng, Toyo Univ.)

*Tomoya NAKAE¹, Sengo KOBAYASHI², Satoshi OKANO² (1. Ehime Univ.(graduate student), 2. Ehime Univ.)