Canon Kabushiki Kaisha

Chiaki Arii

Makoto Kubota

Yasushi Shimizu

Tatsuo Furuta

Kanako Oshima

Akira Uebayashi

Mikio Shimada

Provided is a piezoelectric ceramics including crystal grains each including: a first region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at an asymmetrical position; and a second region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at a symmetrical position, and that is present inside the first region, wherein a ratio of a cross-sectional area of the second region to a cross-sectional area of the piezoelectric ceramics is 0.1% or less.

Growing community of inventors

Tokyo, Japan

Chiaki Arii