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:
Jan. 13, 2009
Filed:
Sep. 22, 2005
Tsutomu Nanataki, Toyoake, JP;
Hirofumi Yamaguchi, Nagoya, JP;
Toshikatsu Kashiwaya, Inazawa, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A piezoelectric/electrostrictive porcelain composition which exhibits superior piezoelectric/electrostrictive characteristics without containing lead (Pb) is provided. A main component of the piezoelectric/electrostrictive composition is a binary solid solution represented by the general formula (1): (1−n)(AgLiNaK)(NbTaSbV)O+nMMO; wherein 0≦a≦0.2, 0≦b≦0.95, 0≦c≦0.95, 0<(1−a−b −c)≦1, 0≦x≦0.5, 0≦y≦0.2, 0≦z≦0.2, 0≦(y+z)≦0.3, 0≦n≦0.2, and wherein Mand Mare combinations of metal which satisfy pretermined conditions.