Abstract: A nonvolatile semiconductor memory device that have a new structure are provided, in which memory cells are laminated in a three dimensional state so that the chip area may be reduced. The nonvolatile semiconductor memory device of the present invention is a nonvolatile semiconductor memory device that has a plurality of the memory strings, in which a plurality of electrically programmable memory cells is connected in series. The memory strings comprise a pillar shaped semiconductor; a first insulation film formed around the pillar shaped semiconductor; a charge storage layer formed around the first insulation film; the second insulation film formed around the charge storage layer; and first or nth electrodes formed around the second insulation film (n is natural number more than 1). The first or nth electrodes of the memory strings and the other first or nth electrodes of the memory strings are respectively the first or nth conductor layers that are spread in a two dimensional state.

Abstract: A management system for objects under monitoring that is capable of managing the presence of moving objects under monitoring. The management system includes a plurality of beacon terminals, one or more management terminals, and a management server. The beacon terminals are respectively held by the moving objects under monitoring, and each have a unique identifier and broadcast a beacon signal. The one or more management terminals are respectively held by one or more moving bodies moving in one or more areas, receive beacon signals to acquire beacon identifiers and beacon presence information, and acquire location information via a positioning system. The management terminals output beacon information spontaneously or upon request. The management server determines the state of presence of the objects under monitoring in the one or more areas, based on the beacon information acquired from the one or more management terminals.

Abstract: A management system for objects under monitoring that is capable of managing the presence of moving objects under monitoring. The management system includes a plurality of beacon terminals, one or more management terminals, and a management server. The beacon terminals are respectively held by the moving objects under monitoring, and each have a unique identifier and broadcast a beacon signal. The one or more management terminals are respectively held by one or more moving bodies moving in one or more areas, receive beacon signals to acquire beacon identifiers and beacon presence information, and acquire location information via a positioning system. The management terminals output beacon information spontaneously or upon request. The management server determines the state of presence of the objects under monitoring in the one or more areas, based on the beacon information acquired from the one or more management terminals.