Inkjet head for inkjet printing apparatus
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United States of America Patent
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-
Jul 6, 2004
Grant Date -
Jun 5, 2003
app pub date -
Nov 29, 2002
filing date -
Nov 30, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An inkjet head employed in an inkjet printing apparatus includes a main body provided with a printing surface, which has a substantially rectangular elongated shape, and a plurality of piezoelectric modules. Each of the piezoelectric modules has a substantially trapezoidal shape, and is provided with a plurality of piezoelectric unit structures. The plurality of piezoelectric modules are arranged along a longitudinal direction of the printing surface such that upper base of the trapezoidal shape is located at a central portion in a direction perpendicular to the longitudinal direction. Further, the plurality of piezoelectric modules are oriented in opposite directions alternately in the direction perpendicular to the longitudinal direction.
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