Ink jet head having heat generating resistor made of non-single crystalline substance containing Ir, Ta and Al and ink jet apparatus having such ink jet head
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United States of America Patent
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Sep 15, 1992
Grant Date -
N/A
app pub date -
Oct 25, 1990
filing date -
Feb 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet head is provided which includes an electrothermal converting body having a heat generating registor which generates, upon energization, heat energy to be directly applied to ink on a heat acting face to discharge the ink. The ink jet head is characterized in that the heat generating resistor is formed from a non-single crystalline substance substantially composed of Ir, Ta and Al and containing the Ir, Ta and Al at the following respective composition rates: 28 atom percent.ltoreq.Ir.ltoreq.90 atom percent, 5 atom percent.ltoreq.Ta.ltoreq.65 atom percent, and 1 atom percent.ltoreq.Al.ltoreq.45 atom percent.
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