Patent ID: 8229805

Claim:
A product information management system, comprising: a reader/writer associated with each of a plurality of distribution steps through which a product to which a tag device is disposed is distributed, wherein information indicating passage through each distribution step is written to the tag device by the reader/writer associated with that distribution step; a server device that records information related to the product; and a terminal device that acquires and presents information recorded on the server device; the terminal device including an input receiving unit that accepts input of information recorded on the tag device, a query unit that sends information input through the input receiving unit to the server device and requests verification of the validity of the product, and a presentation unit that presents information that is transmitted when the validity of the product is verified by the server device; and the server device including a recording unit that records information related to the product, a verification unit that determines validity based on information sent from the terminal device when the terminal device requests verification of product validity, and a transmission unit that acquires and sends the corresponding information recorded in the recording unit to the terminal device when validity is verified by the verification unit; wherein server device causes the presentation unit of the terminal device to present information related to the product when verification of validity is successful based on information indicating passage through each distribution step.