Thermal head

Details Thermal head Thermal head

1999-03-31

2000-09-05

Tran, Huan

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

B41J 2335

Patent

active

06115055&

ABSTRACT:
The thermal head having a protective film of a heating element, the protective film comprising at least one protective layer including a carbon-based carbon protective layer, wherein an oxygen amount in an interface between the carbon protective layer and a lower layer formed under the carbon protective layer is not more than 20 atm %. The thermal head includes a protective film which has significantly reduced corrosion and wear, which is free from cracking and peeling due to heat and mechanical impact and which allows the thermal head to have sufficient durability to ensure that the thermal recording of high-quality images is consistently performed over an extended period of time. Even for an application in which recording under high-energy and high-pressure conditions is performed on a thermal film using a high rigid substrate to be employed in the medical use and the like, the thermal head also has sufficient durability to exhibit high reliability over an extended period of time.

REFERENCES:
Patent Abstracts of Japan, vol. 018, No. 033 1/30/87, & JP 61 201479 (Teijin Ltd) 9/6/86 *Abstract.
Patent Abstracts of Japan, vol. 018, No. 264, 5/19/94 & JP 06 036210 A (Alps Electric Co Ltd) 2/1098 *Abstract.
Patent Abstracts of Japan, vol. 1998, No. 06 4/30/98 & JP 10 034989 A (Rohm Co Ltd), 2/10/98 *Abstract.
Patent Abstracts of Japan, vol. 012, No. 475, 12/1388, & JP 63 197665 A (Alps Electric Co Ltd). 8/1698 *Abstract.

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