A heating cooking appliance includes a heater for the cooking, a switch generating an operation signal while being touched or depressed with a finger or the like, and a microcomputer for controlling the heater so that energization of the heater is initiated in the case where the operation signal generated...http://www.google.co.uk/patents/US5097113?utm_source=gb-gplus-sharePatent US5097113 - Touch switch arrangement for a heating cooking appliance