Patent ID: 9522534
Filing Date: 2016-12-20
CPC Classification: B41J

Claim Text:
1. A liquid jet head comprising: a piezoelectric body substrate including two adjacent groove arrays in which a long and narrow ejection groove and a long and narrow non-ejection groove are alternately arrayed in a reference direction, wherein, an other side end portion of the ejection groove included in one groove array and a one side end portion of the non-ejection groove included in the other groove array do not overlap in a thickness direction of the piezoelectric body substrate, and the other side end portion of the ejection groove included in the one groove array and a one side end portion of the ejection groove included in the other groove array overlap each other in the reference direction, and the other side end portion of the ejection groove included in the one groove array slopes upwardly from a lower surface to an upper surface of the piezoelectric body substrate, and the one side end portion of the ejection groove included in the other groove array slopes upwardly from the lower surface to the upper surface and communicates with the other side end portion of the ejection groove included in the one groove array.