Patent ID: 7154073

Claim:
A tray for frozen food comprising: a tray body having at least one concavity for accommodating frozen food, a dielectric material layer which is provided at least on the concavity so as to absorb microwave to generate heat, wherein the tray body has a base, a plurality of said concavities which are caved in the base, a surrounding wall standing from a peripheral edge of the base, and bulges standing upward from portions between the concavities, tops of the bulges and top of said surrounding wall having flat surfaces and being located on a same level, wherein each of the concavities comprises lengthwise side walls, crosswise side walls, and a bottom, and the concavities are aligned lengthwise and crosswise such that spaces are formed between the lengthwise side walls and spaces are formed between the crosswise side walls, and a microwave-blocking film for sealing an upper face of the tray body, which is configured to contact the bulges and the top of the surrounding wall to prevent tearing of the film and prevent the film from coming into contact with the frozen food, respectively, when pushed.