| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that information cannot be transferred among a plurality of persons without information on the writing side and even an owner is unknown only by an IC tag when data is written in an IC tag medium based on the IC tag medium and opened by placing it to a place where it can be be publicly observed, etc. <P>SOLUTION: An individual, etc. 6 performs writing to the IC tag medium 1 and incorporates the IC tag medium in an umbrella, etc. Optional information or personal information is registered in a computer 4 using a device 2a for reading the medium. The information is stored in a data storage device 5. After the umbrella is lost, a person 7 who acquires the umbrella reads the IC tag by the device 3 for reading the IC tag, checks presence/absence of the information to the data storage device 5 via the computer 4 and browses the optional information or the personal information registered by 6. In addition, as for 6, whereabouts of the umbrella becomes clear by transmitting a message by 7. Anonymity of 7 in the case is maintained without a need for transmitting the personal information. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
