Thermal printhead

Details Thermal printhead Thermal printhead

2005-04-26

2008-10-28

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

Reexamination Certificate

active

07443409

ABSTRACT:
A thermal printhead (A) according to the present invention includes a heating resistor (5) formed on a substrate (1), an electrode (3) for energizing the heating resistor (5), and a protection film (6) for covering the heating resistor (5) and the electrode (3). The protection film (6) has a surface with a ten-point mean roughness of no smaller than 0.2 μm.

REFERENCES:
patent: 6236423 (2001-05-01), Yamaji
patent: 6445402 (2002-09-01), Kinjyo et al.
patent: 7-186429 (1995-07-01), None
patent: 11-301001 (1999-11-01), None
patent: 2000-141729 (2000-05-01), None
patent: 2000-255089 (2000-09-01), None
patent: 2001-47652 (2001-02-01), None
International Search Report from corresponding PCT.JP2005/007903 application, mailed Aug. 9, 2005.

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