Patent ID: 7964827

Claim:
A laminated sheet heater comprising: a first insulating resin film; a second insulating resin film; a heater element interposed between an inner surface of the first insulating resin film and an inner surface of the second insulating resin film; and a film void part defined by one of a film through hole formed through at least one of the first and second insulating resin films and a film recess formed inward in at least one of the first and second insulating resin films in a planar direction of the laminated sheet heater, wherein the heater element includes a heater terminal portion connectable to a lead wire through which electric current can be conducted to the heater element, the heater terminal portion being formed protruding into the film void part in the planar direction, and the heater element is a foil heater element made of metal foil in one of a band shape and a sheet shape.