*Ryo Matsumoto¹, Yoshitaka Kakuwa¹, Manabu Tanahashi¹, Yutaka Yanagimoto¹, Glen Snyder¹ (1.Gas Hydrate Laboratory, Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Takao Ebinuma¹, Syu Kyouno², Yoshitaka Kakuwa³, Ryo Matsumoto³ (1.Methane Hydrate Science Course, Department of Management of Social Systems and Civil Engineering, Graduate School of Engineering, Tottori University, 2.OYO Corporation, 3.Gas Hydrate Research Laboratory, Organization for the Strategic Coordination of Research and Intellectural Properties, Meiji University)

*Yoshitaka Kakuwa¹, Akihiro Hiruta¹, Yoshihiro Kakizaki¹, Ryo Matsumoto¹ (1.Gas Hydrate Laboratory, Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University)

*Miyahara Reina¹, Taiki Mori¹, Akihiro Kano¹, Satoko Owari², Hitoshi Tomaru², Yoshihiro Kakizaki³, Yoshitaka Kakuwa³, Ryo Matsumoto³ (1.Kyushu University Graduate School of Integrated Sciences for Global Society, 2.Chiba University, 3.Meiji University)

*Yoshitaka Kakuwa¹, Olga I Nikitina², Tatiana J Tolmacheva³ (1.Gas Hydrate Laboratory, Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, 2.Sarpaev Institute of Geological Sciences, Almaty, Kazakhstan, 3.A.P. Karpinskii Russian Geological Research Institute, St. Petersburg, Russia)