Liquid dispenser head, liquid dispensing unit using same,...

Details Liquid dispenser head, liquid dispensing unit using same,... Liquid dispenser head, liquid dispensing unit using same,...

2007-10-31

2011-10-25

Rahll, Jerry (Department: 2874)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

08042917

ABSTRACT:
A liquid dispenser head includes a plurality of nozzles, a plurality of liquid chambers, and a plurality of vibration members. The nozzle is used to discharge liquid. The liquid chamber communicates with the nozzle. The vibration member has a vibration portion, which is used as a deformable wall face of the liquid chamber. The vibration member includes a metal member and a resin layer directly formed on the metal member, and the resin layer has a coefficient of linear expansion greater than a coefficient of linear expansion of the metal member.

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patent: 7156504 (2007-01-01), Akahane
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patent: 2004-284196 (2004-10-01), None
patent: 2005-81790 (2005-03-01), None
patent: 2005-265784 (2005-09-01), None
patent: WO93/25390 (1993-12-01), None

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