*Ryota Tsuboi¹, Keisuke Ishikawa², Susumu Yasuda², Harada Kenji³, Ideno Tomoyuki³ (1. graduate school of Tokyo Denki University , 2. Tokyo Denki University , 3. Fudo Tetra)

*Takayuki Sakai¹, Masaki Nakano¹, Kouki Hirota² (1. Nagoya University, 2. Kansai Electric Power Co.)

*Kotaro Tsunashima¹, Toru Tsuchikura¹ (1. Maebashi Institute of Technology)

*Zhaocheng Wang¹, Mitutosi Yosimine¹, Misato Mori (1. Tokyo Metropolitan University)

*Akira Kitajima¹, Shinji Fukushima¹ (1. Fujita corp.)

*Kentaro Nakai¹, Miki Furuichi¹, Toshihiro Noda¹ (1. Nagoya University)

*Tomoaki Satomi¹, Kohei Shiota², Hiroshi Takahashi¹ (1. Tohoku University, 2. Hitachi, Ltd. (Former master's student at Tohoku University))