Short-range wireless communication apparatus and registration management program

A short-range wireless communication apparatus includes a contactless communicator, a short-range wireless communicator, a power detector for detecting a power-on state and a power-off state, and a controller for registering the mobile terminal establishing contactless communication upon determining that the contactless communication is established between the mobile terminal and the contactless communicator, and for permitting connection of the short-range wireless communication between the short-range wireless communicator and the mobile terminal until determining that the short-range wireless communication becomes unconnectable. When the power detector detects that the power-on state is changed to the power-off state and the power-off state is then changed to the power-on state, the controller causes the short-range wireless communicator to search for the registered mobile terminal. When the search is unsuccessful, the controller unregisters the mobile terminal for which the search is unsuccessful.