| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink jet recording head and an ink jet recorder in which deformation of a diaphragm is enhanced. SOLUTION: The ink jet recording head comprises an elastic film 50 constituting a part of a pressure generating chamber 12 communicating with nozzle opening, a lower electrode 60 provided on the elastic film 50, a piezoelectric layer 70 formed on the lower electrode 60, and an upper electrode 80 formed on the piezoelectric layer 70 wherein a piezoelectric oscillator comprising the piezoelectric layer 70 and the upper electrode 80 is formed in a region corresponding to the pressure generating chamber 12. The piezoelectric oscillator has a recess 325 from where at least the upper electrode 80 is removed. Consequently, tension is relaxed in the longitudinal direction and deformation of the diaphragm is enhanced.
|
