Heating resistance element component and thermal printer
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United States of America Patent
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Apr 9, 2013
Grant Date -
Apr 9, 2009
app pub date -
Oct 2, 2008
filing date -
Oct 3, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A heating resistance element component has a supporting substrate, an insulating film laminated on the supporting substrate, heating resistors arranged at intervals on the insulating film, a common wire connected to one end of each of the heating resistors, and individual wires each connected to another end of the each of the of heating resistors. A surface of the supporting substrate is formed with a first concave portion and a second concave portion. The first concave portion is arranged in a region opposed to heating portions of the heating resistors. The second concave portion is arranged at an interval in a vicinity of the first concave portion so that heat generated by the heating portions of the plurality of heating resistors is prevented from flowing into the supporting substrate.
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