IC Label for Prevention of Forgery

• US 20090303044A1
• Filed: 05/16/2007
• Published: 12/10/2009
• Est. Priority Date: 05/16/2006
• Status: Active Grant

• Current Assignee: Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Original Assignee: Hitachi, Ltd., Toppan Printing Co., Ltd. (TOPPAN Holdings, Inc.)
• Inventors: Suzuki, Manabu, Endo, Toru, Kando, Hidehiko, Furuichi, Kozue
• Granted Patent: US 8,395,504 B2
• Time in Patent Office: Days
• US Class Current: 340/568.100
• CPC Class Codes: G06K 19/07381 with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
• CPC Class Codes: G06K 19/0776 the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
• CPC Class Codes: G06K 19/07798 part of the antenna or the integrated circuit being adapted for rupturing or breaking, e.g. record carriers functioning as sealing devices for detecting not-authenticated opening of containers electronic seals G09F3/03

Abstract

An IC label for prevention of forgery includes: a label substrate which has an adhesive agent for affixing the same to an object; a non-contact IC medium which is provided on the label substrate and has an IC chip for storing predetermined identification information and an antenna for wireless transmission of the identification information; and a security function portion which is provided on the label substrate and prevents replication.

Claims

1. An IC label for prevention of forgery comprising:

a label substrate which has an adhesive agent for affixing the same to an object;

a non-contact IC medium which is provided on the label substrate and has an IC chip for storing predetermined identification information and an antenna for wireless transmission of the identification information; and

a security function portion which is provided on the label substrate.

2. The IC label for prevention of forgery according to claim 1, wherein the label substrate is formed of a breakable material.

3. The IC label for prevention of forgery according to claim 1, wherein the label substrate includes a solvent detection portion which is dissolved by a peeling solvent for peeling the label substrate affixed to the object, or reacts chemically with the peeling solvent.

4. The IC label for prevention of forgery according to claim 1, wherein the label substrate includes a heat detection portion which undergoes color change when heated or reacts chemically by the effect of heat.

5. The IC label for prevention of forgery according to claim 1, wherein the identification information is intrinsic identification information for each IC chip.

6. The IC label for prevention of forgery according to claim 1, wherein the identification information is correlated with management information for management of the object.

7. The IC label for prevention of forgery according to claim 1, wherein:

the IC chip includes a read-only memory; and

the identification information is stored in the read-only memory.

8. The IC label for prevention of forgery according to claim 1, wherein the security function portion includes at least one of:

an OVD functional material which undergoes color change depending on an angle of light incident on the security function portion or an angle of visual recognition of the security function portion;

a fluorescent material or a phosphorescent material excited by electromagnetic waves of a specified wavelength to emit electromagnetic waves of a wavelength different from that of the specified wavelength; and

a liquid crystal material which has polarizability of a specific pattern and displays the pattern by taking out specifically polarized light.

9. The IC label for prevention of forgery according to claim 1, wherein:

the label substrate includes an optical identification portion which has optically readable optical identification information; and

the identification information and the optical identification information are at least partly correlated with each other.

10. The IC label for prevention of forgery according to claim 9, wherein the security function portion and the optical identification portion are provided on the same surface of the label substrate.