Liquid ejecting head and liquid ejecting apparatus including...

Details Liquid ejecting head and liquid ejecting apparatus including... Liquid ejecting head and liquid ejecting apparatus including...

2006-10-23

2009-12-29

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07637600

ABSTRACT:
A liquid ejecting head includes nozzle openings through which a liquid is ejected and a channel-containing substrate having pressure-generating chambers each communicating with the corresponding nozzle openings. Piezoelectric elements are disposed on a side of the channel-containing substrate, and each has a piezoelectric active portion. Each piezoelectric element has a lower electrode, a piezoelectric layer and an upper electrode. A protective film composed of an inorganic insulating material covers the piezoelectric elements. The protective film has exposed portions, each exposing a surface of the upper electrode of the corresponding piezoelectric element. The piezoelectric active portions substantially function as operating portions of the piezoelectric elements.

REFERENCES:
patent: 2006/0187269 (2006-08-01), Takahashi
patent: 2006/0192817 (2006-08-01), Miyata
patent: 10-226071 (1998-08-01), None
patent: 2001-260357 (2001-09-01), None

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