| 摘要 |
Provided is a heating resistance element component, including: a supporting substrate; an insulating film laminated on the supporting substrate; a plurality of heating resistors arranged at intervals on the insulating film; a common wire connected to one end of each of the plurality of heating resistors; and individual wires each connected to another end of the each of the plurality of heating resistors, in which a surface of the supporting substrate is formed with a first concave portion and a second concave portion, the first concave portion being arranged in a region opposed to heating portions of the plurality of heating resistors, the second concave portion being arranged at an interval in a vicinity of the first concave portion. Accordingly, heating efficiency of the heating resistors can be increased to reduce power consumption, and a strength of the substrate under the heating resistors can be increased.
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