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Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 12, 2007
Patent Application Number
10852530
Date Filed
May 24, 2004
Patent Primary Examiner
Patent abstract
The present invention is directed to a piezoelectric ink jet head wherein contacts for the electrical connection of the upper and lower electrodes that sandwich the piezoelectric element on the upper and lower sides are disposed in a solid region of the substrate where any of recess to make the pressure cavity, common feed path, feed port, nozzle passage or nozzle is not formed, in order to surely prevent the vibration characteristic of individual drive regions or individual piezoelectric element from varying.
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