Liquid jet head and an actuator apparatus

Details Liquid jet head and an actuator apparatus Liquid jet head and an actuator apparatus

2011-04-05

2011-04-05

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07918543

ABSTRACT:
A liquid jet head includes a flow passage forming substrate formed of a crystal substrate provided with a pressure generating chamber communicating with nozzle openings, and a piezoelectric element including a lower electrode, a piezoelectric layer, and an upper electrode, which are provided on the flow passage forming substrate to change pressure in the pressure generating chamber. The piezoelectric layer has a thickness of 5 μm or less and is formed of perovskite type crystals, and the distance between a diffraction peak position A of an X-ray derived from a surface (220) of the flow passage forming substrate and a diffraction peak position B of an X-ray derived from a surface (100) of the piezoelectric layer is within the range of 2θ=25.487±0.1°.

REFERENCES:
patent: 6103072 (2000-08-01), Nishiwaki et al.
patent: 6284434 (2001-09-01), Kamei et al.
patent: 2006/0146097 (2006-07-01), Fujii et al.
patent: 2006-278835 (2006-10-01), None

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