Patent ID: 7919736

Claim:
A heating device comprising: a main body provided with an opening and defining a cooking space; a magnetron configured to generate an electromagnetic wave for heating, the magnetron emitting the electromagnetic wave into the cooking space; a door configured to cover the opening; a reader configured to read information contained in a wireless IC tag attached to an object to be heated, the reader being provided on one of an inside surface of the door and a surface of the main body surrounding the opening of the main body, wherein the surface of the main body faces the inside surface of the door when the door is closed, such that the reader is not disposed within the cooking space when the door is closed; and a barrier positioned to act as a shield preventing the electromagnetic wave emitted by the magnetron from reaching the reader when the door is closed, and positioned to break the shield when the door is opened, the barrier being provided on at least one of the inside surface of the door and the surface of the main body surrounding the opening of the main body, such that the barrier is disposed between the reader and the cooking space when the door is closed.