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. 15, 2011
Filed:
Aug. 02, 2007
Shingo Uraki, Machida, JP;
Shingo Uraki, Machida, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
This invention provides a shear mode-type piezoelectric actuator using a piezoelectric ceramic composition free from lead having a high coercive electric field and a liquid ejection head having the shear mode-type piezoelectric actuator. The shear mode-type piezoelectric actuator is characterized by using a piezoelectric ceramic composition having a solid solution including a main component of general formula (1) and an auxiliary component of general formula (2) added in an amount of less than 1% by mole based on the total amount of the solid solution:{Li(KNa)}(NbTaSb)O  General formula (1)(Wherein 0≦x≦0.2, 0≦y≦1, 0<z≦0.4, 0<w≦0.2)ABO  General formula (2)(Wherein A denotes Bi and B denotes at least one of Fe, In and Sc).