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案件記録

Liquid Ejecting Head And Liquid Ejecting Apparatus

発明審査中
3閲覧数
16請求項 · 2 独立
§ Ⅰ

案件概要

発明者

Yu SHIOZAWA; Takahiro KANEGAE

IPC分類

B41J 2/45B41J 2/14

CPC分類

B41J2/4508B41J2/451B41J2/4581B41J2/14233B41J2002/14491

A liquid ejecting head includes a pressure chamber that applies a pressure of a liquid for ejecting a liquid from a nozzle when a first piezoelectric element is driven, and a detection chamber in which a second piezoelectric element detects a residual vibration of the pressure of the liquid applied in the pressure chamber. The first piezoelectric element includes a first piezoelectric body, a first upper electrode, a first lower electrode, and a first vibration plate provided below the first lower electrode, the second piezoelectric element includes a second piezoelectric body, a second upper electrode, a second lower electrode, and a second vibration plate provided below the second lower electrode, and a neutral axis of the second piezoelectric element is positioned above a neutral axis of the first piezoelectric element.

原文(中国語)

A liquid ejecting head includes a pressure chamber that applies a pressure of a liquid for ejecting a liquid from a nozzle when a first piezoelectric element is driven, and a detection chamber in which a second piezoelectric element detects a residual vibration of the pressure of the liquid applied in the pressure chamber. The first piezoelectric element includes a first piezoelectric body, a first upper electrode, a first lower electrode, and a first vibration plate provided below the first lower electrode, the second piezoelectric element includes a second piezoelectric body, a second upper electrode, a second lower electrode, and a second vibration plate provided below the second lower electrode, and a neutral axis of the second piezoelectric element is positioned above a neutral axis of the first piezoelectric element.

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