Patent ID: 8632161

Claim:
A liquid ejection head comprising: a common-chamber formation member including a common chamber to supply liquid to a plurality of pressure chambers communicating a plurality of nozzles for ejecting liquid droplets; a flexible thin-film member to form part of a wall face of the common chamber; and a thin-film support member bonded to the thin-film member with glue, wherein the thin-film support member has one of an opening and a recessed portion at least partially having a shape that is broad in an area proximal to a first surface of the thin-film support member bonded to the thin-film member and becomes narrower as an area of the one of the opening and the recessed portion is more distant from the first surface of the thin-film support member bonded to the thin-film member, the one of the opening and the recessed portion of the thin-film support member is sealed with the thin-film member, and a portion of the thin-film member corresponding to the one of the opening and the recessed portion of the thin-film support member has the glue on only a periphery area of the portion of the thin-film member that contacts the thin-film support member.