4:15 PM - 5:30 PM
*Takanori YOSHIDA1, Satoshi OKAMURA1, Izumi SAKAMOTO2, Yoshiko ADACHI3, Yasuo IKEDA4, Ryuichi SHINJO5, Makoto SUGAWARA6 (1.Hokkaido University of Education Sapporo, 2.Tokai University, 3.Niigata University, 4.Hokkaido University of Education Kushiro, 5.Ryukyu University, 6.Mitsubishi Materials Techno Corporation)