The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2015
Filed:
May. 17, 2012
Tomohiko Hibino, Nagoya, JP;
Tomohiko Hibino, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is provided a piezoelectric/electrostrictive elementcomprising a piezoelectric/electrostrictive bodymade of a piezoelectric/electrostrictive ceramic composition containing Pb(NiNb)O—PbTiO—PbZrOternary solid solution system composition as the main components, and an electrode disposed on the piezoelectric/electrostrictive body, wherein the ternary solid solution system composition is represented by the following composition formula:(PbSr){(TiZr)(NiNb)(AlNb)}O(where 0.005≦x≦0.03, 0.45≦y≦0.54, 0.58≦a≦0.91, 0.07≦b≦0.36, 0.02≦c≦0.08, 0.97≦α≦1.03, 0.97≦β≦1.03, 0.97≦γ≦1.03, and (a+b+c=1.000)).