Patent ID: 8777381
Filing Date: 2014-07-15
Classification: B41J,Y10T

Abstract:
1. An inkjet head comprising: a substrate which is formed of a piezoelectric material, the substrate including a plurality of grooves that are arranged at intervals; a nozzle plate which is fixed onto the substrate by an adhesive, the nozzle plate including a plurality of nozzles that are formed by laser processing to communicate with the grooves; a plurality of electrodes to which a driving voltage that deforms the grooves is applied, the electrodes being formed on respective internal surfaces of the grooves; a first inorganic film which is superposed on the electrodes, the first inorganic film having a flat surface that is apart from the electrodes; a second inorganic film which is superposed on the first inorganic film; and a third inorganic film which is superposed on the second inorganic film, the third inorganic film being soaked in ink that is supplied to the grooves.