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.

Date of Patent:
Jul. 31, 2012

Filed:

Mar. 11, 2009
Applicants:

Masahito Furukawa, Chuo-ku, JP;

Daisuke Tanaka, Tokyo, JP;

Masakazu Hirose, Chuo-ku, JP;

Tadashi Takenaka, Noda, JP;

Hajime Nagata, Noda, JP;

Yuji Hiruma, Christchurch, NZ;

Inventors:

Masahito Furukawa, Chuo-ku, JP;

Daisuke Tanaka, Tokyo, JP;

Masakazu Hirose, Chuo-ku, JP;

Tadashi Takenaka, Noda, JP;

Hajime Nagata, Noda, JP;

Yuji Hiruma, Christchurch, NZ;

Assignee:

TDK Corporation, Chuo-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/00 (2006.01); C04B 35/495 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piezoelectric ceramiccomposed mainly of a three-component solid solution represented by the following general formula (1), wherein x, y and z in general formula (1) satisfy the following formulas (2), (3), (4) and (5).(BiNa)TiO(BiLi)TiO(BiK)TiO  (1)0.80≦x≦0.96  (2)0.02≦y≦0.08  (3)0.01≦z≦0.15  (4)  (5)


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