Patent ID: 7625076

Claim:
An inkjet head comprising a laminar structure including a plurality of plates superposed on each other, said laminar structure having a plurality of nozzles which are defined in an endmost one of said plurality of plates, such that ink can be ejected through said plurality of nozzles, for performing a recording operation, wherein said plurality of plates includes a first plate having (i) a plurality of first openings which includes all openings which are defined in an opening defining surface of said first plate and which are held in communication with said plurality of nozzles, and (ii) a plurality of second openings which includes all openings which are defined in said opening surface of said first plate and which are isolated from all of said plurality of nozzles, such that a number of said second openings is not smaller than a number of said first openings, wherein said second openings are positioned relative to said first openings such that each of said first openings is accompanied by at least one of said second openings, wherein said plurality of plates includes a second plate fixed to said opening defining surface of said first plate by an adhesive, and wherein at least a portion of the adhesive is located inside at least one of said plurality of second openings.