Inkjet head

Details Inkjet head Inkjet head

2006-03-21

2006-03-21

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S068000

Reexamination Certificate

active

07014300

ABSTRACT:
An inkjet head includes a cavity unit and a piezoelectric unit stacked on the cavity unit. The cavity unit has a plurality of ink pressure chambers and a plurality of nozzles being in fluid communication with respective ones of the ink pressure chambers. The piezoelectric unit includes a laminate of four piezoelectric layers and two common electrodes. The piezoelectric unit is provided with a plurality of driving electrodes formed on a top face thereof at positions corresponding to respective ones of the pressure chambers. One of the common electrodes is provided between the upper most piezoelectric layer and the piezoelectric layer immediately therebelow so as to extend substantially over the whole area defined between those two piezoelectric layers. The other common electrode is located between the lower most piezoelectric layer and the piezoelectric layer immediately thereabove so as to extend substantially over the whole area defined therebetween.

REFERENCES:
patent: 1803274 (1931-04-01), Sawyer
patent: 5233256 (1993-08-01), Hayashi et al.
patent: 5266964 (1993-11-01), Takahashi et al.
patent: 5402159 (1995-03-01), Takahashi et al.
patent: 6416172 (2002-07-01), Jeong et al.
patent: 6419348 (2002-07-01), Kojima et al.
patent: 6431691 (2002-08-01), Tanikawa et al.
patent: 6478412 (2002-11-01), Hanabata
patent: 2002/0024567 (2002-02-01), Takagi
patent: 11179898 (1999-07-01), None
patent: 2001-162796 (2001-06-01), None
patent: 2000127384 (2002-07-01), None

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