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 7518292 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 14, 2009

Filed:

Oct. 14, 2004
Applicants:

Mitsuyoshi Matsushita, Chiba, JP;

Yosuke Iwasaki, Chiba, JP;

Inventors:

Mitsuyoshi Matsushita, Chiba, JP;

Yosuke Iwasaki, Chiba, JP;

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

An inexpensive piezoelectric single-crystal device being excellent in the piezoelectric characteristics and having a complex perovskite structure can be provided by adding a specific additive to a lead magnesium niobate-lead titanate (PMN-PT) single crystal or a lead zinc niobate-lead titanate (PZN-PT or PZNT) single crystal. Specifically, the piezoelectric single crystal has a complex perovskite structure and is formed of a composition containing 35 to 98 mol % lead magnesium niobate [Pb(MgNb)O] or lead zinc niobate [Pb(ZnNb)O], 0.1 to 64.9 mol % lead titanate [PbTiO], and 0.05 to 30 mol % lead indium niobate [Pb(InNb)O] wherein calcium is substituted for 0.05 to 10 mol % lead in the composition.


Find Patent Forward Citations

Matsushita, Mitsuyoshi. (2009). Piezoelectric single crystal and piezoelectric single-crystal device and method for manufacturing the same (U.S. Patent No. 7518292). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7518292

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