Patent ID: 8541723

Claim:
An induction heat cooking device comprising: a top plate made of a material through which an infrared light is transmitted; a heating coil for receiving a high frequency current to heat a cooking container placed on the top plate by induction; an inverter circuit for providing the high frequency current to the heating coil; an operation unit including an operation mode setting unit for setting an operation mode of the inverter circuit; an infrared sensor for detecting an infrared light that is emitted from a bottom surface of the cooking container and transmitted through the top plate; a control unit for controlling an output of the inverter circuit, based on an output of the infrared sensor and a setting inputted to the operation unit; and a notification unit, wherein the operation mode includes a preheating heating mode for performing preheating before performing heating, wherein when the operation mode is set to a preheating heating mode, the control unit starts operation in a preheating mode for heating the cooking container with a first heating output corresponding to the preheating heating mode, and wherein when an increment of an output value of the infrared sensor is more than a first predetermined increment since the heating starts with the first heating output, the control unit causes the notification unit to notify a user that the preheating is finished, and the operation mode is changed to a waiting mode for performing heating with a second heating output that is lower than the first heating output.