16:00 〜 16:15 ▲ [18p-Z16-10] Influence of grain size effect and Ba/Ti ratios on dielectric, ferroelectric, and piezoelectric properties of Barium titanate ceramics 〇(D)Piyush Sapkota1、Ichiro Fujii1、Shintaro Ueno1、Satoshi Wada1 (1.Univ. of Yamanashi)