Title:
RADIO IC TAG
Document Type and Number:
WIPO Patent Application WO/2007/116830
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a radio IC tag which is readable even in a plurality of countries
(destination countries) using different radio frequency bands for reading.
[MEANS FOR SOLVING PROBLEMS] The radio IC tag characterized by comprising a
case (20), an antenna (60) provided in the case (20), a metal plate (901) disposed
in the case oppositely to the antenna (60), and a mechanism for varying the resonance
characteristics of the radio IC tag (10) by moving at least one of the antenna (60)
and the metal plate (901) in the case (20) thereby varying the distance (D) between
the metal plate (901) and the antenna (60). With such a radio IC tag (10), capacitance
of an equivalent tuning capacitor consisting of the antenna (60) and the metal
plate (901) can be altered arbitrarily by a distance alteration means, and thereby
the resonance characteristics of the radio IC tag (10) can be altered in accordance
with the frequency band of reading radio wave used by a reader/writer.
More Like This:
Inventors:
NONAKA NOBUYUKI (JP)
Application Number:
PCT/JP2007/057168
Publication Date:
October 18, 2007
Filing Date:
March 30, 2007
Export Citation:
Assignee:
ARUZE CORP (JP)
SETA CORP (JP)
NONAKA NOBUYUKI (JP)
SETA CORP (JP)
NONAKA NOBUYUKI (JP)
International Classes:
G06K19/07; G06K19/00; G06K19/077; H01Q1/12; H01Q5/10; H01Q9/16; H04B5/02
Foreign References:
| JPH10105660A | 1998-04-24 | |||
| JPH08263609A | 1996-10-11 | |||
| JP2003271913A | 2003-09-26 | |||
| JP2003529163A | 2003-09-30 | |||
| JP2004287942A | 2004-10-14 | |||
| JPH1131201A | 1999-02-02 |
Attorney, Agent or Firm:
MIZUNO, Koji et al. (6-13 Kyobashi 1-chome, Chuo-k, Tokyo 31, JP)
Download PDF:
Previous Patent: BISANTHRACENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
Next Patent: OPTICAL LAMINATED BODY
Next Patent: OPTICAL LAMINATED BODY