Piezoelectric actuator and liquid discharging head
US-2024334834-A1 · Oct 3, 2024 · US
Liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
US8991984B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8991984-B2 |
| Application number | US-201313847712-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 20, 2013 |
| Priority date | Mar 27, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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A liquid ejecting head that discharges a liquid through a nozzle aperture includes a piezoelectric element. The piezoelectric element includes a piezoelectric layer and a first and a second electrode provided for the piezoelectric layer. The piezoelectric layer is made of a complex oxide containing bismuth, iron, barium and titanium and having a perovskite structure. The iron content in the piezoelectric layer is higher at the interface with the second electrode than other portions in the thickness direction of the piezoelectric layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A liquid ejecting head that discharges a liquid through a nozzle aperture, the liquid ejecting head comprising: a nozzle plate that includes the nozzle aperture; a piezoelectric element including a plurality of piezoelectric layers positioned on the nozzle plate, the piezoelectric layers each being made of a complex oxide containing bismuth, iron, barium and titanium and having a perovskite structure; a first electrode located between the piezoelectric l…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8991984B2 cover?
- A liquid ejecting head that discharges a liquid through a nozzle aperture includes a piezoelectric element. The piezoelectric element includes a piezoelectric layer and a first and a second electrode provided for the piezoelectric layer. The piezoelectric layer is made of a complex oxide containing bismuth, iron, barium and titanium and having a perovskite structure. The iron content in the pie…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification B41J2/14233. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).