Electric heating – Heating devices – With heating unit structure
Patent
1997-03-27
1999-09-07
Hoang, Tu Ba
Electric heating
Heating devices
With heating unit structure
219270, 219544, H05B 310
Patent
active
059483067
ABSTRACT:
A ceramic heater is formed by embedding a heating element in a ceramic body. A ceramic body is formed from a sintered basic ceramic component containing an adjustment ceramic component in the range of 1 to 3% by weight. The adjustment ceramic component includes at least one component selected from the group consisting of metal silicate, metal carbonate, metal boride, and metal nitride each of which is larger in thermal expansion coefficient than the basic ceramic component.
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patent: 4912305 (1990-03-01), Tatemasu et al.
patent: 5206484 (1993-04-01), Issartel
patent: 5304778 (1994-04-01), Dasgupta et al.
patent: 5362944 (1994-11-01), Hatanaka et al.
Konishi Masahiro
Tatematsu Kazuho
Hoang Tu Ba
NGK Spark Plug Co. Ltd.
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