| 发明名称 |
A TAMPER-INDICATING RFID ANTENNA |
| 摘要 |
<p>A tamper-indicating radio frequency identification device (20) made of densified metal powder (12) and to a sticker including the same device. The present invention also relates to radio frequency identification antenna made of densified metal powder and to a sticker including the same antenna. The present invention also relates to methods of indicating that a radio frequency identification antenna or sticker has been tampered with.</p> |
| 申请公布号 |
WO2004061762(A1) |
申请公布日期 |
2004.07.22 |
| 申请号 |
WO2003US34921 |
申请日期 |
2003.11.04 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
KUHNS, DAVID, W. |
| 分类号 |
G06K19/073;G06K19/077;H05K3/10;(IPC1-7):G06K19/077;G09F3/03;B22F3/02 |
主分类号 |
G06K19/073 |
| 代理机构 |
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