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.:

US 7477004 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2009

Filed:

Sep. 22, 2005
Applicants:

Tsutomu Nanataki, Toyoake, JP;

Hirofumi Yamaguchi, Nagoya, JP;

Toshikatsu Kashiwaya, Inazawa, JP;

Inventors:

Tsutomu Nanataki, Toyoake, JP;

Hirofumi Yamaguchi, Nagoya, JP;

Toshikatsu Kashiwaya, Inazawa, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Nanataki, Tsutomu. (2009). Piezoelectric/electrostrictive porcelain composition, piezoelectric/electrostrictive article, and piezoelectric/electrostrictive film type element (U.S. Patent No. 7477004). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7477004

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