Piezoelectric film, piezoelectric element, piezoelectric...

Details Piezoelectric film, piezoelectric element, piezoelectric... Piezoelectric film, piezoelectric element, piezoelectric...

2007-01-23

2007-01-23

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C252S06290R, C252S06290R, C501S134000, C310S31300R

Reexamination Certificate

active

10980749

ABSTRACT:
A piezoelectric film is provided that is represented by the following general formula: Pb1−b[((X1/3Nb2/3)1−cB′c)1−aYa]O3wherein X is at least one of Mg, Zn and Ni; B′ is at least one of Zr, Ti and Hf; Y is at least one of V, Nb, Ta, Cr, Mo and W; a satisfies 0.05≦a<0.30; b satisfies 0.025≦b≦0.15; when X is Mg, c satisfies 0.25≦c≦0.35; when X is Ni, c satisfies 0.30≦c≦0.40; and when X is Zn, c satisfies 0.05≦c≦0.15.

REFERENCES:
patent: 476703 (1992-03-01), None
patent: 03083859 (1991-04-01), None
patent: 2001-223404 (2001-08-01), None
patent: 2003063865 (2003-03-01), None
patent: 2003267796 (2003-09-01), None

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