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. 10, 2012
Filed:
Feb. 26, 2007
Shingo Uraki, Tokyo, JP;
Ryo Suzuki, Kanagawa, JP;
Takaaki Tsurumi, Kanagawa, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
Abstract
Disclosed is a piezoelectric ceramic composition which is produced by adding two or more metal elements and has excellent piezoelectric properties. The piezoelectric composition comprises the main ingredient represented by the general formula: [Li(KNa)](NbTaSb)O(0≦x≦0.2, 0≦y≦1, 0≦z≦0.4, 0<w≦0.2) and the auxiliary ingredient represented by the general formula: ABO(wherein A and B independently represent a metal element having a valence of +3 or together represent a combination of at least two metal elements each having a valence of +3 in average; and ABOrepresents a compound having a perovskite structure).