Invention Grant
US08210659B2 Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element 有权
液体喷射头,液体喷射装置和压电元件

  • Patent Title: Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
  • Patent Title (中): 液体喷射头,液体喷射装置和压电元件
  • Application No.: US12620261
    Application Date: 2009-11-17
  • Publication No.: US08210659B2
    Publication Date: 2012-07-03
  • Inventor: Xin-shan Li
  • Applicant: Xin-shan Li
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Workman Nydegger
  • Priority: JP2008-311630 20081205
  • Main IPC: B41J2/045
  • IPC: B41J2/045
Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
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.
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