Thermal head

Details Thermal head Thermal head

1995-05-10

1997-01-14

Fuller, Benjamin R.

Incremental printing of symbolic information

Thermal marking apparatus or processes

Specific resistance recording element type

B41J 232, B41J 2335

Patent

active

055944884

ABSTRACT:
A thermal head including a temperature keeping layer disposed on a substrate, a plurality of heat generating elements formed on the temperature keeping layer, a plurality of individual electrodes connected to the corresponding heat generating elements, a common electrode connected to the heat generating elements, respectively. Each heat generating element includes a heat generating portion formed between one of the individual electrodes and the common electrode. Each of the individual electrodes and the common electrode have a dual layered structure including a lower electrode and an upper electrode, the lower electrode being formed between the temperature keeping layer and one of the heat generating elements, and the upper electrode being formed above the heat generating element.

REFERENCES:
patent: 4768038 (1988-08-01), Shibata
patent: 5091736 (1992-02-01), Narita
patent: 5148188 (1992-09-01), Ota et al.

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