Liquid discharge head
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United States of America Patent
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-
Jul 12, 2016
Grant Date -
Dec 3, 2015
app pub date -
May 26, 2015
filing date -
May 29, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A liquid discharge head includes a substrate, a heat resistor layer, and a side wall member that forms a side wall of a pressure chamber. The heat resistor layer has a heat effect portion configured to foam liquid in an interior of the pressure chamber to discharge liquid from a discharge port. The heat effect portion is apart from the substrate, at least part of a surface of the heat resistor layer is covered with a covering layer in the interior of the pressure chamber, and the covering layer extends from the interior of the pressure chamber to a position coming into contact with the side wall of the side wall member.
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