10:45 AM - 11:00 AM
*Toshitsugu Yamazaki1, Osamu Ishizuka2, Tetsuya Fukazawa3, Naoki Uto3, Fumisato Tajima3, Kazuyoshi Moriyama3, Satoshi Sorimachi3 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Institute of Advanced Industrial Science and Technology, 3.Koken Boring Machine Co. Ltd.)