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:
Jul. 03, 2012
Filed:
Nov. 17, 2009
Xin-shan LI, Shiojiri, JP;
Xin-shan Li, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting head includes: pressure generation chambers which communicate with nozzle orifices; and piezoelectric elements which induce pressure change in the pressure generation chambers and each include a first electrode, a piezoelectric body layer formed on the first electrode, and a second electrode formed on the side opposite to the first electrode of the piezoelectric body layer, wherein the piezoelectric body layer includes two dielectric films having the substantially same interstitial distance and an intervening layer provided between the two dielectric films and having a different interstitial distance from that of the dielectric film.