Incremental printing of symbolic information – Thermal marking apparatus or processes – Specific resistance recording element type
Patent
1996-09-24
1997-08-26
Tran, Huan H.
Incremental printing of symbolic information
Thermal marking apparatus or processes
Specific resistance recording element type
347205, 347208, B41J 2335
Patent
active
056615132
ABSTRACT:
To realize a high-quality and high-speed printing which can sufficiently comply with high definition, a thermal head having a high heat resistance and excellent thermal responsivity comprises a high thermal conductivity substrate, a heat accumulating layer formed on the surface of the substrate, a plurality of heater elements formed on the surface of the heat accumulating layer in line, a common electrode and an individual electrode energizing each of the heater elements, and a protective layer formed so as to cover the heat accumulating layer, the heater elements and the electrodes, wherein a stress-resistant layer composed of an insulating high-modulus ceramic is provided on the surface of the heat accumulating layer.
REFERENCES:
patent: 4963893 (1990-10-01), Homma et al.
patent: 5119112 (1992-06-01), Homma et al.
patent: 5177498 (1993-01-01), Homma et al.
patent: 5473357 (1995-12-01), Shirakawa et al.
Endoh Toshiya
Nakatani Toshifumi
Shirakawa Takashi
Alps Electric Co. ,Ltd.
Bever Patrick T.
Shoup Guy W.
Tran Huan H.
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