Liquid ejecting head, liquid ejecting apparatus and piezoelectric element
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United States of America Patent
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Jul 15, 2014
Grant Date -
May 2, 2013
app pub date -
Oct 31, 2012
filing date -
Nov 1, 2011
priority date (Note) -
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Abstract
A liquid ejecting head for discharging liquid from nozzle openings is provided. The liquid ejecting head includes a piezoelectric element comprising a piezoelectric film inserted between electrodes with buffer layer on one or two surfaces of the piezoelectric film, wherein the piezoelectric film is made from barium titanate-based composition having a perovskite structure containing barium, titanium as well as copper equal to or less than 3 mol % of titanium amount, lithium more than or equal to 2 mol % and less than or equal to 5 mol % of titanium amount, and boron more than or equal to 2 mol % and less than or equal to 5 mol % of titanium amount and the buffer layer is formed from a complex oxides with perovskite structure containing bismuth, iron, manganese, barium and titanium.
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