Nozzle plate, liquid ejection head using same, and recording device

A nozzle plate comprising:

• a first surface from which the liquid is ejected, comprising:
• at least one first region;
• and
• at least one second region which is not superimposed on the first region;
• a second surface on the opposite side to the first surface;
• and
• a plurality of through holes which penetrate through the plate from the first surface to the second surface and become nozzles, comprising:
• at least one first through hole disposed in the at least one first region;
• and
• at least one second through hole disposed in the at least one second region, wherein
• each of the through holes comprises an inversely tapered part where a cross-sectional area increases toward the first surface, on at least the first surface side the width T of the at least one first through hole is larger than the width T of the at least one second through hole, where the width of the inversely tapered part when viewed from the first surface side is defined as “T”, and
• a first thickness from the first region to the second surface is thinner than a second thicknesses from the second region to the second surface.