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US 8,783,834 B2Granted
Liquid ejecting head and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsTomohiro Sakai, Satoshi Kimura
Life of this patent
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Abstract
There is provided a liquid ejecting head comprising a pressure generating chamber and a piezoelectric actuator having a piezoelectric material consisting of composite oxide. The composite oxide contains bismuth, sodium, barium, titanium, and zinc. A ratio of zinc content to the total amount of titanium and zinc is 0.35 mol % or more and 1.25 mol % or less.
Claims7
A liquid ejecting head comprising:
- a pressure generating chamber communicating with a nozzle opening;
- and
- a piezoelectric actuator having
- an electrode and
- a piezoelectric material consisting of composite oxide, wherein the composite oxide contains bismuth, sodium, barium, titanium, and zinc, and does not contain niobium;
- a ratio of zinc content to the total amount of titanium and zinc is 0.35 mol % or more and 1.25 mol % or less;
- and
- a ratio of barium content to the total amount of bismuth, sodium and barium is 4.5 mol % or more and 7.5 mol % or less.
5 more elements
A piezoelectric device comprising:
- a piezoelectric material consisting of a composite oxide, wherein the composite oxide contains bismuth, sodium, barium, titanium, and zinc and does not contain niobium;
- a ratio of zinc content to the total amount of titanium and zinc is 0.35 mol % or more and 1.25 mol % or less;
- and
- a ratio of barium content to the total amount of bismuth, sodium and barium is 4.5 mol % or more and 7.5 mol % or less.
1 more element
Dependencies are inferred from the claim text.