To heat food merely by placing it by elastically bonding upper and lower cases and a plate-like conductive member horizontally extended in a slightly lower position than an intermediate part of the upper and lower cases, and omitting part of an adhesive to communicate inner and outer space of the upper and lower cases.
A surface wave generating body, composed of upper and lower ceramic cases 10, 11 and a plate-like conductive member 12, is installed on a rotary base 8, and a food container 16 with frozen food 17, 17,... arranged is placed on the upper face. When magnetrons 2, 3 are operated, surface wave is generated to the outer surface of the upper case 10, and the frozen food 17, 17... is heated. Powerful surface wave is generated by using the upper case 10 placed on the upper side, and this intensity is rapidly lowered away from the surface of the upper case 10, so that the upper case 10 is installed on the upper side in order to convergently heat the lower part of food, while thawing of the upper part of food is slow. When the lower case 11 is placed on the upper side, the intensity lowering of surface wave is gentle, and the food is heated properly up to the upper part.
YAJIMA HIROSHI
IWABUCHI YASUSHI
MITOMO AKIO
ARAI TATSUSHI
| JP58097666B |
Next Patent: MALFUNCTION DETECTING DEVICE USING WATCHDOG TIMER