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 7808161 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 05, 2010

Filed:

Mar. 25, 2008
Applicants:

Masato Yamazaki, Komaki, JP;

Kohei Ito, Komaki, JP;

Yasuhiro Fujii, Komaki, JP;

Katsuya Yamagiwa, Komaki, JP;

Takeshi Mitsuoka, Konan, JP;

Inventors:

Masato Yamazaki, Komaki, JP;

Kohei Ito, Komaki, JP;

Yasuhiro Fujii, Komaki, JP;

Katsuya Yamagiwa, Komaki, JP;

Takeshi Mitsuoka, Konan, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a piezoelectric ceramic composition that contains Na, Bi, Ti and Co wherein the composition ratio of Na, Bi, Ti and Co in terms of oxides thereof is in the following composition range (1):NaO-BiO-TiO-CoO  (1)where a, b, c and d are mole fractions; 0.03≦a≦0.042; 0.330≦b≦0.370; 0.580≦c≦0.620; 0<d≦0.017; and a+b+c+d=1.


Find Patent Forward Citations

Yamazaki, Masato. (2010). Piezoelectric ceramic composition and piezoelectric device (U.S. Patent No. 7808161). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7808161

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