Title:
通信システム、情報記録媒体、中継通信装置
Document Type and Number:
Japanese Patent JP5278611
Kind Code:
B2
Abstract:
The disclosed communication system, information recording medium, and relay communication device allow communication via electromagnetic induction, allow the use of low-cost information recording media, improve communication stability when information recording media is misaligned or rotated, and provide high IC-chip tolerance to flexion in information recording media. An information recording medium (3-1) has: an IC chip (32-1) that is capable of communication via electromagnetic induction; and a pair of thin conductive sheets (21-1) connected to the IC chip (32-1). A relay medium (2-1) has thin conductive sheets (31-1) and a loop antenna (22-1), with one of said thin conductive sheets (31-1) connected to one end of the loop antenna (22-1) and the other thin conductive sheet (31-1) connected to the other end of the loop antenna (22-1). A read/write device (1-1) has a loop antenna (12-1).
Inventors:
Tomoya Akiyama
Kei Osugi
Kei Osugi
Application Number:
JP2012519392A
Publication Date:
September 04, 2013
Filing Date:
June 07, 2011
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G06K17/00; G06K19/07; G06K19/077; H04B5/02
Domestic Patent References:
| JP2005110131A | 2005-04-21 | |||
| JPH10320514A | 1998-12-04 | |||
| JP2002308437A | 2002-10-23 | |||
| JP2003044817A | 2003-02-14 | |||
| JP2003085510A | 2003-03-20 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Hayashi Ichiyoshi
Previous Patent: JPS5278610
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