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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akihito Tsuda0
Date of Patent
February 22, 2011
Patent Application Number
12371258
Date Filed
February 13, 2009
Patent Primary Examiner
Patent abstract
Provided is a liquid jet head including: a flow path forming substrate having formed therein a row of pressure generating chambers, each of which is communicated with a nozzle opening; a piezoelectric element which is provided in each of the pressure generating chambers via a vibration plate formed of a plurality of layers; and a bonding substrate which is bonded to a piezoelectric element forming side of the flow path forming substrate, in which: a groove is formed in a region of the vibration plate surrounding the piezoelectric element so as to extend to an interface of the plurality of layers or extend over the interface; and an insulator formed of an inorganic insulating material is formed in the groove.
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