HIGH FREQUENCY THAWING HEATER

摘要

PURPOSE: To satisfactory thaw and heat without warming topping in sushi by differentiating heating efficiency partially in the vertical way. CONSTITUTION: A surface wave heating plate (surface wave transmission line) 12 comprising alumina which functions as carrier base of frozen sushi 13 while forming a surface wave is provided in a thawing/heating container 10 together with a metal plate 11 and a microwave is supplied to the surface wave heating plate 12 directly from waveguides 14A and 14B. As a result, a surface wave which has the intensity of an electric field the weaker upward can be formed on the surface wave heating plate 12 and the frozen sushi 13 is thawed and heated by the surface wave uneven vertically to obtain a rice M warmed up to a proper temperature and a chilled topping N. A metal periodic structural body may be arranged in place of the surface wave heating plate 12 to allow the introduction of the microwave into the surface wave transmission lines thereof from multiple directions.