Patent ID: 7793648

Claim:
A heating cooker comprising: a top panel for placing a load thereon; a heater for heating the load; and a touch operation part of capacitance type on a top surface of the top panel including an operation display part; the operation display part including: an annular layer of electroconductive paint on a bottom surface of the top panel, the layer of electronconductive paint forming an electrode; a mask printing part disposed around the electrode; a display including a display character under an electrode center; and a backlight for emitting light from under the display character in lighting, the light passing through the electrode center which is not applied with the electroconductive paint and the top panel so as to display the display character thereby placing the operation display part in a display state, wherein the operation display part is switchable between: a non-display state in which the operation display part including the display character is entirely unlit and is made inoperable, and a display state in which the heating of the heater can be controlled by the operation display part; wherein the operation display part is placed in a non-display state and is made inoperable when the touch operation part has not received an input within a predetermined period of time.