发明名称 DOCUMENT MANAGEMENT SYSTEM
摘要 PROBLEM TO BE SOLVED: To prevent a responsible person or the like from leaving or losing documents carried by the responsible person or the like. SOLUTION: This document management system 10 is provided with a clear file 12 for storing documents. A transmitting part 14 for transmitting a weak radio wave signal 24 is attached to the clear file 12. A receiving part 16 for receiving the radio wave signal 24 transmitted by the transmitting part 14 is carried by a person carrying the clear file 12. The receiving part 16 is provided with a warning part. When the transmitting part 14 is separated away from a receiving part 16 at a predetermined distance or more, the warning part gives a warning to the person carrying the receiving part 16. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007241935(A) 申请公布日期 2007.09.20
申请号 JP20060067197 申请日期 2006.03.13
申请人 KYOWA EXEO CORP 发明人 WATANABE KAZUNORI;NAGAHARA SHIGERU;OGAWA MIYUKI
分类号 G08B21/24;B42F7/00;H04B7/26 主分类号 G08B21/24
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