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US 8,616,682 B2Granted
Liquid ejection head
AssigneeSeiko Epson Corporation
InventorsTakayuki Yonemura, Hiromu Miyazawa
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Abstract
A liquid ejection head, comprises a pressure generation chamber communicating with a nozzle opening and a piezoelectric element having a piezoelectric layer and an electrodes. The piezoelectric layer is a perovskite type complex oxide containing bismuth, iron, and cerium. The piezoelectric layer contains the cerium in a proportion of 0.01 molar ratio or more and 0.13 molar ratio or lower based on the total amount of the bismuth and the cerium.
Claims6
A liquid ejection head, comprising:
- a pressure generation chamber communicating with a nozzle opening;
- and
- a piezoelectric element having a piezoelectric layer between electrodes,
- wherein the piezoelectric layer is a ABO3 perovskite type complex oxide containing bismuth, iron, and cerium, the cerium exists in the A site, and the piezoelectric layer contains the cerium in a proportion of 0.01 molar ratio or more and 0.13 molar ratio or lower based on the total amount of the bismuth and the cerium.
1 more element
Dependencies are inferred from the claim text.