Patent ID: 6933657

Claim:
A stacked electro-mechanical energy conversion element, comprising: a plurality of layers having a circular shape each of which is formed of a material having an electro-mechanical energy conversion function and has a through-hole in the center thereof; a plurality of electrode portions formed at least on one surface of the layers and spaced from each other by a plurality of first non-electrode portions; a plurality of wiring conductors which penetrate said plurality of layers and electrically connect electrode portions of the different layers; and a plurality of second non-electrode portions formed in the periphery of said wiring conductors so as to prevent said wiring conductors from being rendered conductive to said electrode portions; wherein said wiring conductors are formed at least on or in the vicinity of an edge of an outer diameter of each layer, and said electrode portions are formed over the edge of the outer diameter except for portions at which said second non-electrode portions are formed.