Ink-jet head and manufacturing method thereof

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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Details

C347S053000

Reexamination Certificate

active

07980681

ABSTRACT:
Disclosed are an ink-jet head and a manufacturing method thereof. The ink-jet head, which has a reservoir storing ink, a chamber being supplied with the ink from the reservoir, a restrictor connecting the reservoir to the chamber, and a nozzle discharging the ink, includes: a chamber plate, in which the chamber is formed; a vibration plate, which is laminated on an upper surface of the chamber plate to cover the chamber and in which a first coil is placed; a first middle plate, which is laminated on a lower surface of the chamber plate and in which the restrictor is formed, and a second coil is placed; and a lower plate part, which is laminated on a lower surface of the first middle plate and in which the reservoir and the nozzle are formed.

REFERENCES:
patent: 4730197 (1988-03-01), Raman et al.
patent: 6386682 (2002-05-01), Kimura
patent: 2002-187272 (2002-07-01), None
patent: 2006-264079 (2006-10-01), None
Japanese Office Action for corresponding Japanese Patent Application No. 2008-260956 dated Feb. 22, 2011, 3 pages.

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