Piezoelectric element, ink jet head, angular velocity...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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C347S070000, C310S363000

Reexamination Certificate

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07033001

ABSTRACT:
In a piezoelectric element, an adhesive layer12is provided on a substrate11, a first electrode layer14made of a noble metal containing titanium or titanium oxide is provided on the adhesive layer12, and an orientation control layer15that is preferentially oriented along a (100) or (001) plane is provided on the first electrode layer14. In the vicinity of a surface of the orientation control layer15that is closer to the first electrode layer14, a (100)- or (001)-oriented region extends over titanium or titanium oxide located on one surface of the first electrode layer14that is closer to the orientation control layer15, and the cross-sectional area of the region in the direction perpendicular to the thickness direction gradually increases in the direction away from the first electrode layer14toward the opposite side. Further, a piezoelectric layer16that is preferentially oriented along a (001) plane is provided on the orientation control layer15.

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