Element substrate and method for discharging liquid
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United States of America Patent
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Feb 7, 2017
Grant Date -
Sep 15, 2016
app pub date -
Feb 23, 2016
filing date -
Mar 11, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An element substrate including a base having a heat-generating resistor element which generates thermal energy used for discharging a liquid; an electrically conductive protective layer covering the heat-generating resistor element; an insulating layer provided between the heat-generating resistor element and the protective layer; and a potential applying unit for applying a potential to the protective layer such that a potential of the protective layer is lower than a potential at one end of the heat-generating resistor element and higher than a potential at the other end of the heat-generating resistor element with a voltage being applied between the one end and the other end of the heat-generating resistor element.
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