Patent ID: 7329842

Claim:
A ceramic heater comprising: at least a plate member made of insulating ceramics in which one or more pair(s) of through-holes are formed; a rod member, being made of conductive ceramics, having a power-supply terminal at one end thereof, and being inserted into the through-hole of the plate member at another end thereof; a conductive layer made of conductive ceramics formed on the plate member; and a coating layer made of insulating ceramics formed on the conductive layer; wherein one end face opposite to a side having the power-supply terminal of the rod member has a same plane with a main surface of the plate member; the conductive layer having a heater pattern is formed on the main surface of the plate member having the same plane; and the rod members are electrically insulated not to be short-circuited to each other in a main surface of the plate member opposite to a side on which the heater pattern is formed.