Patent ID: 7049566

Claim:
A cooking device comprising: a heating chamber which houses an object to be heated; a microwave generator to generate a microwave; and a waveguide tube to guide said microwave generated by the microwave generator into said heating chamber, an object to be heated housed in said heating chamber being heated with said microwave radiated into said heating chamber through a communication hole through which said heating chamber and said waveguide tube communicate each other, wherein the cooking device comprises: a first waveguide portion to make said microwave emitted through said communication hole into said heating chamber propagate radially in the directions almost parallel with the inner face of a partition in said heating chamber having said communication hole and to guide said microwave propagated in said almost parallel directions into said heating chamber prior to said microwave being propagated into a region of said heating chamber into which said object may be placed; and a second waveguide portion to make said microwave guided into said heating chamber by said first waveguide portion further propagate radially in directions almost parallel with the inner face of the partition in said heating chamber having said communication hole and to guide the propagated microwave into said heating chamber prior to said microwave being propagated into said region of said heating chamber into which said object may be placed.