*Tetsujiro ETO¹, Hitoshi MAETA¹, Xiao XU², Tatsuya ITO², Ryosuke KAINUMA², Yasushi AMAKO³, Yoshiya ADACHI⁴, Takeshi KANOMATA⁵ (1. Kurume Inst. of Tech., 2. Tohoku Univ., 3. Shinshu Univ., 4. Yamagata Univ., 5. Tohoku Gakuin Univ.)

*Yoshifuru MITSUI¹, Kohei BABA², Ryota KOBAYASHI¹, Masahira ONOUE¹, Wataru ITO³, Shunsuke KUZUHARA³, Keiichi KOYAMA¹ (1. Kagoshima Univ., 2. Kagoshima Univ., 3. NIT, Sendai College)

*Daiki SAITO¹, Masaaki BABA², Masatoshi TAKEDA² (1. Nagaoka Univ. of Tech., 2. Nagaoka Univ. of Tech.)

*Takumi OKUBO¹, Kentaro KYUNO^1,2 (1. Shibaura Institute of Tecnology, 2. SIT International Research Center for Green Electronics)

*Taiki Oikawa¹, Yoshitaka Takezawa¹, Tsuyoshi Nishi¹, Hiromichi Ohta¹ (1. Ibaraki Univ.)