Heating device

Details Heating device Heating device

2006-05-23

2006-05-23

Fuqua, Shawntina T. (Department: 3742)

Electric heating

Heating devices

With heating unit structure

C219S544000, C219S538000, C219S542000, C219S546000, C219S549000, C072S204000, C072S204000, C072S204000, C072S204000, C072S204000

Reexamination Certificate

active

07049556

ABSTRACT:
A heating device at least having an electrically insulating film formed on a surface of a substrate, a heating member formed on the electrically insulating film, and a protection film formed over the electrically insulating film and the heating member, the electrically insulating film and the protection film containing a silicon nitride film having a silicon cont ent in excess of an elemental ratio of silicon to nitrogen of 3:4.

REFERENCES:
patent: 6450025 (2002-09-01), Wado et al.
patent: 2003/0019860 (2003-01-01), Sol
patent: 2003/0175527 (2003-09-01), Lingle
patent: 0 859 536 (1998-08-01), None
patent: 2327028 (1999-01-01), None
patent: 11-31577 (1999-02-01), None
patent: 2000-002571 (2000-01-01), None
patent: 2000-2571 (2000-01-01), None

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