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.:
Date of Patent:
Dec. 25, 2012
Filed:
Aug. 29, 2006
Junya Shoji, Kirishima, JP;
Masahiro Inagaki, Kirishima, JP;
Shigenobu Nakamura, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
To provide a multi-layer piezoelectric element having high strength against breakage, high insulation and excellent displacement performance, and an injection apparatus that incorporates the same. The multi-layer piezoelectric element comprising a stackconstituted from a plurality of piezoelectric layersstacked one on another via internal electrode layers, wherein at least a part of peripheral areas, that are disposed between two piezoelectric layerslocated adjacently in the stacking direction and are located between an edgeof the internal electrode layerand side faceof the stack, is dispersed areas where a plurality of metallic regions are dispersed via voids