Invention Grant
US09481173B2 Nozzle plate, method of manufacturing nozzle plate, inkjet head, and inkjet printing apparatus 有权
喷嘴板,喷嘴板的制造方法,喷墨头和喷墨打印装置

Nozzle plate, method of manufacturing nozzle plate, inkjet head, and inkjet printing apparatus
Abstract:
A nozzle plate having a nozzle hole that penetrates through the nozzle plate in a thickness direction is disclosed. The nozzle plate includes a discharge outlet that is formed at the nozzle hole, and provided curvatures of four corner portions of an opening shape of the discharge outlet are denoted as R1, R2, R3, and R4, the opening shape of the discharge outlet is configured to approximate the equation R1=R2≧R3=R4≈0.
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