Patent ID: 7926726

Claim:
A survey method comprising the steps of: arranging an object equipped with a wireless chip having a memory device, the object being capable of being transported by a user; writing, into the memory device, information indicating an entrance of the object into a saleroom, wherein the writing of the information indicating the entrance is wirelessly performed; writing, into the memory device, information indicating a location of the object in the saleroom, wherein the writing of the information indicating the location is wirelessly performed; writing, into the memory device, information indicating an exit of the object from the saleroom, wherein the writing of the information indicating the exit is wirelessly performed; and analyzing information stored in the memory device, wherein the memory device comprises a memory layer comprising an organic material sandwiched between a pair of electrodes, and wherein the memory device is arranged to irreversibly undergo a short circuit between the pair of electrodes when a voltage is applied therebetween.