Electric heating – Heating devices – With heating unit structure
Patent
1994-03-11
1996-09-10
Walberg, Teresa J.
Electric heating
Heating devices
With heating unit structure
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.
Fujii Namitsugu
Sano Hiromi
Sugino Hiroshi
Suzuki Masatoshi
Tsuruta Tadashi
Nippondenso Co. Ltd.
Paik Sam
Walberg Teresa J.
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