Patent ID: 8016394

Claim:
A liquid droplet ejection head, comprising: a substrate having first through-holes that serve as ejection liquid reservoir chambers for reserving an ejection liquid and a second through-hole that serves as an ejection liquid supply chamber for supplying the ejection liquid to the ejection liquid reservoir chambers, the substrate having one surface and the other surface opposite to the one surface; a nozzle plate having nozzles that ejects the ejection liquid in the form of liquid droplets, the nozzle plate provided on a side of the one surface of the substrate so as to cover the first through-holes and the second through-hole of the substrate; a sealing plate provided on a side of the other surface of the substrate so as to cover the first through-holes of the substrate; a driving means that drives the liquid droplet ejection head to eject the ejection liquid from the nozzles; a first bonded portion through which the substrate and the nozzle plate are bonded together; and a second bonded portion through which the substrate and the sealing plate are bonded together, wherein at least one of the first and second bonded portions includes a bonding film formed by drying a liquid coating formed of a liquid material containing a silicone material composed of silicone compounds, and wherein the bonding film bonds the substrate and at least one of the nozzle plate and the sealing plate together due to a bonding property developed in the bonding film by applying energy thereto.