Liquid discharge head, liquid discharge apparatus, liquid discharge module, and manufacturing method for liquid discharge head
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United States of America Patent
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Feb 7, 2023
Grant Date -
Nov 18, 2021
app pub date -
May 7, 2021
filing date -
May 13, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid discharge head includes a substrate, a pressure chamber through which a first liquid and a second liquid flow while being in contact with each other, a pressure generating element configured to pressurize the first liquid, and a discharge port configured to discharge the second liquid. The substrate has a first channel and a second channel that each extend through the substrate. The first channel is used to supply the first liquid to the pressure chamber. The second channel is used to supply the second liquid to the pressure chamber. A viscosity of the second liquid is greater than a viscosity of the first liquid. An average cross-section area of the second channel is greater than an average cross-section area of the first channel.
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