Patent ID: 8050654

Claim:
A method for locking function for a contactless type communication device of a mobile communication terminal fitted with the contactless type communication device that is capable of function lock control via a wired communication path, comprising: a lock request electronic mail content registration step in which a user of the mobile communication terminal registers, inside the mobile communication terminal, content that at least one of a title field and a text body should have as a lock request electronic mail for locking function of the contactless type communication device; a function lock decision step for deciding, in the mobile communication terminal that has received the lock request electronic mail via a mobile communication network, whether or not the contactless type communication device is in a function lock state; a function lock state for, when the decision result in the function lock decision step is negative, locking the function of the contactless type communication device in the mobile communication terminal via the wired communication path; a notified party registration decision step for, when the decision result in the function lock decision step is affirmative, or when the function lock step has been executed, deciding whether or not a function notified party who should be notified of function lock information to the effect that the contactless type communication device is in a function locked state, is registered in the mobile communication terminal; and a function lock notification step in which, when the decision result in the notified party registration decision step is affirmative, the mobile communication terminal notifies the function lock information to the function lock notified party via the mobile communication network.