Patent ID: 7326524

Claim:
A method for producing a nozzle plate, comprising: applying a photocuring resin onto a surface of a substrate that includes a nozzle while filling an ink ejection port of the nozzle with the photocuring resin; irradiating light to the photocuring resin from a rear surface of the substrate through the nozzle to form a columnar cured portion, wherein the columnar cured portion includes: a head portion that protrudes from the surface of the substrate and has an outer diameter smaller than an inner diameter of the ink ejection port; and a base portion that is disposed in the nozzle and has an outer diameter equal to the inner diameter of the ink ejection port; removing the photocuring resin except for the columnar cured portion; and forming a water-repellent film on the surface of the substrate in a state where the columnar cured portion remains, wherein; the columnar cured portion is in a semi-cured state that is an intermediate state of a photocuring reaction.