Abstract: A microwave oven includes a heating chamber in which food to be cooked is contained, a magnetron for range-heating the food contained in the heating chamber, a temperature sensor for sensing the temperature of an atmosphere containing hot air emanating from the food being range-heated in the heating chamber, and a controller for controlling an operation of the magnetron based on fluctuations of the temperatures sensed by the temperature sensor.

Abstract: A high frequency heating apparatus such as microwave ovens includes an inverter circuit having a switching element and converting a commercial ac power supply to a high frequency power supply by controlling "on" and "off" periods of the switching element, a magnetron driven by the inverter circuit, a counter cumulatively counting an operating period of time and a deenergization period of time of the magnetron, and a compensator for compensating an "on" period of the switching element based on a count value of the counter so that an input power to the inverter circuit is rendered constant.

Abstract: A cooking apparatus has a heating chamber having a plurality of heating functions so as to cook food in accordance with a plurality of cooking modes, cooking information settings for setting at least one of the cooking modes and cooking information including a cooking time, a cooking information display having a display element for performing graphic display of at least time elapsed information of the cooking information in accordance with a plurality of colors respectively corresponding to the plurality of cooking modes, a first control component for designating a given heating function in the heating chamber in accordance with the set cooking information and controlling at least a cooking drive time required for the given heating function, and second control component for calculating the time for elapsed information to drive at least the graphic display element in the cooking information display component and for designating a color for the time elapsed information in accordance with a type of cooking mode.

Abstract: A cooking apparatus comprising a cooking apparatus housing having a heating chamber which allows an oven-cooking mode by the operation of a heater, and a temperature sensor for detecting the temperature inside the heating chamber, a first control section for comparing the temperature in the heating chamber detected by the temperature sensor with a preset cooking temperature, and for controlling the heater in accordance with the comparison results, a first setting unit for setting the cooking temperature in steps in response to the operation of a temperature setting member, a second setting unit for initially setting the cooking temperature at a predetermined value which is frequently used before a setting operation of the first setting unit, and a second control section for controlling the operation time of the first control section in accordance with a preset cooking time.