*Teppei Okamoto¹, Naoya Kashiwazaki², Hidetoshi Kambe², Hisao Koizumi³ (1. Ricoh Company, Ltd., 2. Tokyo Denki University, 3. Specified Nonprofit Corporation Study Group on M2M/IoT)

*Hiroharu OCHIHARA¹, Shinya WATANUKI², Katsue EDO³ (1. Graduate School of Business Administration Hosei University, 2. University of Marketing and Distribution Sciences, 3. Prefectural University of Hiroshima)

Makiko Tanaka¹, *Katsunari Sato¹ (1. Graduate School of Nara Women’s University)

*Seiya Fujiwara¹, Minami Sasakura¹, Haruki Oita¹, Mayumi Uemae¹, Hiroaki Yoshida¹, Takashi Matsuoka², Yumi Shibagaki², Masayoshi Kamijo¹ (1. Shinshu University, 2. DENSO corporation)