Ceramic heater

Electric heating – Heating devices – With heating unit structure

Patent

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Details

219553, H05B 344

Patent

active

055548393

ABSTRACT:
A ceramic heater which can be produced easily, induces no increase of production cost and can restrict the resistance change of a heating body due to migration. According to the present invention, a gap is formed between a ceramic sintered body and a heating body. Thus, migration in which cations are seized within the gap is caused so as to impede the cations from entering into the heating body. This makes it difficult for the cations to migrate and the volume in which the heating body is expanded is secured by the gap 13.

REFERENCES:
patent: 4523935 (1985-06-01), Takagi et al.
patent: 4613455 (1986-09-01), Suzuki et al.

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