Ink jet recording head with enhanced bonding force between a heat storing layer and substrate, a method of forming the same and a recording apparatus having said recording head
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United States of America Patent
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Mar 18, 1997
Grant Date -
N/A
app pub date -
Apr 15, 1993
filing date -
Apr 16, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet recording head comprising energy generating elements for applying the heat energy to the ink, heat acting portions for forming bubbles in the ink with said energy generating elements, a heat storing layer having insulating property for storing the heat energy disposed adjacent to said energy generating elements, and a support substrate for supporting said heat storing layer, characterized in that said support substrate is composed mainly of metal, and said heat storing layer is a chemical conversion coating which is formed through chemical treatment of the surface of said substrate.
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