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. 14, 2009

Filed:

Oct. 17, 2005
Applicants:

Mutsumi Kitagawa, Inuyama, JP;

Koji Kimura, Nagoya, JP;

Inventors:

Mutsumi Kitagawa, Inuyama, JP;

Koji Kimura, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piezoelectric/electrostrictive device is provided including a substrate section and an operation section disposed on the substrate section. The operation section includes a piezoelectric/electrostrictive film and an electrode film, and the device operates by displacement of the operation section. The piezoelectric/electrostrictive films and electrode films are alternately laminated so that uppermost and lowermost layers form the electrode films. The operation section and the substrate section are integrally fired, and the substrate section is ceramic material containing a titanium element.


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