Patent ID: 7683295

Claim:
A heating element comprising: at least a single-piece heat-resistant base member with a plate portion in which a heater pattern is formed, a rod portion extending from one surface of the plate portion and in which a current-carrying part is formed, and an end portion at an end of the rod portion on the opposite side of the plate portion and in which a power-supply terminal is formed; a dielectric layer with insulating property on the surface of the heat-resistant base member; a conductive layer with conductive property on the dielectric layer, in which the conductive layer is formed as the heater pattern in the plate portion, as the current-carrying part in the rod portion, and as the power-supply terminal in the end portion; and a protection layer with insulating property which covers the surface of the heater pattern and the current-carrying part, in which the dielectric layer, the conductive layer and the protection layer are formed to unite with the heat-resistant base member; wherein the end portion of the single-piece heat-resistant base member is enlarged a second the plate portion and the power-supply terminal is formed in the enlarged part of the end portion.