Patent ID: 7568785

Claim:
A nozzle plate, comprising: a first nozzle layer having a first nozzle hole through which a liquid substance is discharged; a second nozzle layer having a second nozzle hole that is connected to the first nozzle hole and receives the liquid substance; and a discharge layer that has an opening and has a higher resistance to etching than the first nozzle layer, the discharge layer being provided on a liquid substance discharging side in a liquid substance flow direction of the first nozzle layer, the opening determining a diameter of a discharge opening of the liquid substance discharge side, and the first nozzle hole penetrating the first nozzle layer and being connected with the opening, wherein the first nozzle layer has an outer surface, an inner surface and an intermediate surface, the outer surface being a surface facing the liquid substance discharge side, the inner surface being a surface facing the second nozzle layer, and the intermediate surface being a base surface of a concave section for locating the discharge layer formed on the outer surface; wherein the discharge layer is made of a metal, an inorganic oxide or an inorganic nitride, the discharge layer is located on the intermediate surface of the first nozzle layer, and the discharge layer has a discharging surface facing the liquid substance discharge side, and wherein the discharging surface of the discharge layer is flush with the outer surface of the first nozzle layer.