A laminated piezoelectric element according to the present invention includes a plurality of unit laminates and a plurality of adhesive layers. The unit laminates are stacked together. Each of the unit laminates includes a plurality of piezoelectric ceramic layers and a plurality of internal electrode...http://www.google.es/patents/US7567020?utm_source=gb-gplus-sharePatente US7567020 - Laminated piezoelectric element including adhesive layers having small thickness and high adhesive strength
Laminated piezoelectric element including adhesive layers having small ...