Sealing container for microwave oven cooking

PURPOSE: To rapidly heat the lid of a container to a high temperature and to open the lid of the container by condensing microwave energy by the antenna of a large dimension and converting it into heat at a narrow part. CONSTITUTION: The antenna 4 composed of a conductor is laminated on the lid main body 1 of this container sealed by the lid main body 1 composed of an insulated flexible sheet, and when the container is exposed to microwaves in a microwave oven, the microwave energy is condensing near the opposing tip part of the antenna 4. The energy is converted into the heat and the lid main body 1 is opened by the heat. In such a manner, the lid of the insulated flexible sheet of the sealing container is rapidly heated in a short time by microwave oven heating and a hole for discharging generated steam is automatically opened on the lid of the container. COPYRIGHT: (C)1989,JPO