A liquid-ejecting head includes a pressure-generating chamber communicating with a nozzle opening and includes a piezoelectric element including a piezoelectric layer and electrodes. The piezoelectric layer contains bismuth sodium potassium titanate and satisfies the inequality 0â‰¦P r /P m â‰¦0.25 at 25Â° C., where P m and P r are the saturation polarization and remanent polarization, respectively, of the piezoelectric layer.

Claims

7 · 2 independent · depth 2

7 granted claims

›1.independentA piezoelectric element comprising:na piezoelectric layer; anda pair of electrodes associated with the piezoelectric layer,wherein the piezoelectric l…+4

›6.independentA piezoelectric element comprising:na piezoelectric layer; anda pair of electrodes associated with the piezoelectric layer,wherein the piezoelectric l…+1

Classifications

5 codes

IPC · International Patent Classification

Section B — Performing operations; transporting

B41J2/015

Section H — Electricity

H01L41/00
H02N2/00

USPC · US Patent Classification

347/68310/311

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Pendency

3.3 y

1,194 days filing → grant

Office actions

non-final + final

Responses

1 RCE

Examiner

Matthew Luu

art unit 2853 · TC 2800

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Citations: 17 back · 0 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20110216135 A1	8 Sep 2011

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