Title:
ELECTRONIC TAG, AND VEHICLE DOOR LOCKING/UNLOCKING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/125755
Kind Code:
A1
Abstract:
An electronic tag (1) is provided with: a coil conductor (22); a button battery housing unit (23) housing a button battery (30); a substrate (20); and a metal member (52). The coil conductor is provided in the form of a loop through which a magnetic flux radiated from an external antenna passes for near-field wireless communication. The substrate carries the coil conductor and the button battery housing unit at a proximate position where leakage towards the outside of the loop is promoted by the button battery. The metal member guides the magnetic flux, of which leakage towards the outside of the loop is promoted by the proximate position, towards the inside of the loop.
Inventors:
MAEHARA HIROAKI (JP)
MATSUMOTO MUNENORI (JP)
MATSUMOTO MUNENORI (JP)
Application Number:
PCT/JP2014/000033
Publication Date:
August 21, 2014
Filing Date:
January 08, 2014
Export Citation:
Assignee:
DENSO CORP (JP)
NIPPON SOKEN (JP)
NIPPON SOKEN (JP)
International Classes:
E05B19/00; E05B49/00; G06K19/077; H01Q7/00; H04B5/02
Foreign References:
| JP3669883B2 | 2005-07-13 | |||
| JP2012036668A | 2012-02-23 | |||
| JP2012135020A | 2012-07-12 | |||
| JP2006270681A | 2006-10-05 | |||
| JP5065149B2 | 2012-10-31 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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