| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably read and write data even in a state that a plurality of documents stuck with RFID tags or the like are laminated. <P>SOLUTION: In a document management system, RFIDs with IC chips and antenna coils are stuck on document packets, and the document management system makes data communicate with a reader by coupling the RFID tags with a device antenna in electromagnetic induction in a non-contact manner. In the document management system, one-end sides of the document packets are abutted on and fitted to a document mounting surface, the coil-shaped device antenna having an axis parallel with the document mounting surface is fitted under the document mounting surface and the antenna coil is mounted near one-end sides of the document packets. In the document management system, the antenna coil is covered with a mutual-intervention suppression section in a layer configuration fitting a metallic thin-film layer between magnetic material layers within a range of 30 to 90% from a side far from one-end sides to the side of one side. Such a document management system is manufactured. <P>COPYRIGHT: (C)2009,JPO&INPIT |
