Patent · US Active

Lead-free piezoelectric material

US9780295B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignees

Oregon State University · US
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Eric Andrew Patterson · Corvallis, US
David Cann · Leatherhead, GB
Peter Mardilovich · Corvallis, US

Key dates

Filing date	Jan 28, 2013
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Aug 4, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/3298
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A lead-free piezoelectric ceramic material has the general chemical formula xBiCoO3-y(Bi0.5Na0.5)TiO3-z(Bi0.5K0.5)TiO3, xBiCoO3-y(Bi0.5Na0.5)TiO3-zNaN-bO3, xBiCoO3-y(Bi0.5Na0.5)TiO3-zKNbO3, xBiCoO3-yBi(Mg0.5Ti0.5)O3-z(Bi0.5Na0.5)TiO3, xBiCoO3-yBa-TiO3-z(Bi0.5Na0.5)TiO3, or xBiCoO3-yNaNbO3-zKNbO3; wherein x+y+z=1, and x, y, z≠0.

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