| 摘要 |
A multilayer piezoelectric element is provided with a multilayer body in which internal electrodes are arranged between stacked piezoelectric layers. The multilayer body has an active part piezoelectrically active, and nonactive parts piezoelectrically nonactive. The nonactive parts are located so as to interpose the active part in between in a direction intersecting with a displacement direction of the active part. The nonactive parts are provided with a release portion for releasing restraint on displacement of the active part.
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