Patent ID: 7225514

Claim:
A method for producing a stacked piezoelectric element by alternately a stacking piezoelectric layer comprising a piezoelectric material and an inner electrode layer comprising an electrically conducting material, the method comprising: a green sheet production step of producing a green sheet for a base, which constitutes a part of the piezoelectric layer, a unit body formation step of forming a unit body by disposing a narrow stacked part on the green sheet for a base, wherein the narrow stacked part is comprised of by a narrow piezoelectric material layer which constitutes a part of the piezoelectric layer and has an area smaller than the green sheet for a base and an electrode material layer which constitutes the inner electrode layer and has an area smaller than the green sheet for a base, a stacked body formation step of forming a stacked body having groove parts by stacking a plurality of the unit bodies, wherein the groove part having the bottom being defined by the side face of the narrow stacked part, and a firing step of firing the stacked body.