Thermal head and thermal printer

Details Thermal head and thermal printer Thermal head and thermal printer

2009-08-24

2011-11-22

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

Reexamination Certificate

active

08063926

ABSTRACT:
The present invention has an object to reduce a thickness of a protecting film having a small thermal conductivity. A thermal head includes: a plurality of heat generating resistors formed via an insulating layer; a driver circuit unit for driving the plurality of heat generating resistors to generate a heat; a wiring for connecting the driver circuit unit to the plurality of heat generating resistors; a protecting film formed to cover the plurality of heat generating resistors, the driver circuit unit and the wiring, wherein the plurality of heat generating resistors, the driver circuit unit, the wiring11and the protecting film are formed on a substrate, and wherein a thermal conductor having a thermal conductivity larger than that of the protecting film is disposed on the protecting film, in opposition to each of the plurality of heat generating resistors.

REFERENCES:
patent: 4587399 (1986-05-01), Higeta et al.
patent: 5095318 (1992-03-01), Sugiyama
patent: 5157414 (1992-10-01), Seino et al.
patent: 2010/0053294 (2010-03-01), Fukumoto
patent: 60-137670 (1985-07-01), None
patent: 61-293869 (1986-12-01), None
patent: 2-137943 (1990-05-01), None
patent: 3-175058 (1991-07-01), None
patent: 4-259571 (1992-09-01), None
patent: 2002-254686 (2002-09-01), None

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