Patent · US Active

Piezoelectric material, piezoelectric element, and electronic equipment

US9260348B2 · kind B2 · utility

1Cited by

2References

23Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Miki Ueda · Tokyo, JP
Takayuki Watanabe · Ebeye, US
Shunsuke Murakami · Kawasaki, JP

Key dates

Filing date	Jan 24, 2014
Grant date	Feb 16, 2016
Priority date	—
Expiry date	Jan 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04N23/52
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

There is provided a lead- and potassium-free piezoelectric material having a high piezoelectric constant and a satisfactory insulation property and a piezoelectric element that includes the piezoelectric material. The piezoelectric material contains a perovskite-type metal oxide having the general formula (1): (NaxBa1-y)(NbyTi1-y)O3 (wherein x satisfies 0.80≦x≦0.95, and y satisfies 0.85≦y≦0.95) and Zn, wherein the Zn content corresponds to more than 0 mol % and 5 mol % or less of the amount of perovskite-type metal oxide. The piezoelectric element includes the piezoelectric material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.