Ink jet head substrate, ink jet head having same and manufacturing method for ink jet head
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United States of America Patent
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-
Aug 17, 1993
Issued Date -
N/A
app pub date -
Mar 11, 1992
filing date -
Mar 24, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ink jet recording head substrate includes a supporting member supporting a plurality of electrothermal transducers having heat generating resistors and electrodes electrically connected to the heat generating resistors; and identification marks for easy identification of each of the electrothermal transducers.
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