Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card

• US 20060237544A1
• Filed: 04/19/2006
• Published: 10/26/2006
• Est. Priority Date: 04/25/2005
• Status: Active Grant

• Current Assignee: Lintec Corporation
• Original Assignee: Lintec Corporation
• Inventors: Matsuura, Katsuyoshi, Matsushita, Taiga
• Granted Patent: US 7,434,739 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/0726 the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07779 the inductive antenna being a coil
• CPC Class Codes: G06K 19/07783 the coil being planar
• CPC Class Codes: G06K 19/07784 the inductive antenna consisting of a plurality of coils stacked on top of one another

Abstract

An IC tag and an IC card are provided to achieve reduction in size, improvement on workability and the yield rate when manufacturing, reduction of manufacturing cost, etc., The IC tag of this invention is formed for transmitting information in non-contact manner, and two pieces of antenna circuits 2 are folded and superposed on each other therebetween. One of the two pieces of antenna circuits 2 is a mounted circuit 2A on which an IC chip 6 is not mounted, and the other is an opened circuit 2B on which on IC chip 6 is mounted. On one surface of the antenna circuit 2 is provided a surface printing material 10 on which visible information is printed. On the other surface of the antenna circuit 2 is provided an adhesive member, so that the antenna circuit 2 can be stuck with each other by folding a circuit support portion 4.

Claims

1. An antenna circuit, comprising a plurality of antenna circuits constructed so that each antenna circuit is superposed thereon by folding between the antenna circuits.

2. An IC inlet, comprising:

at least one or a plurality of antenna circuits on which an IC chip is mounted, wherein each antenna circuit comprises a plurality of antenna circuits, and is constructed so that each antenna circuit is superposed thereon, by folding between the antenna circuits.

3. An IC tag, comprising:

a set of IC inlets provided on a substrate portion, wherein each of said IC inlets comprises;

at least one or a plurality of antenna circuits on which an IC chip is mounted, wherein each antenna circuit comprises a plurality of antenna circuits, and is constructed so that each antenna circuit is superposed thereon, by folding between the antenna circuits.

4. The IC tag according to claim 3, further comprising:

two substrate portions for supporting said antenna circuit and displaying visible information thereon; and

a circuit supporting portion for connecting said two substrate portions and superposing two antenna circuits supported on each substrate portion on each other, while fitting the positions thereof.

5. An IC card, comprising:

a set of IC inlets provided on a substrate portion, wherein each of said IC inlets comprises;

at least one or a plurality of antenna circuits on which an IC chip is mounted, wherein each antenna circuit comprises a plurality of antenna circuits, and is constructed so that each antenna circuit is superposed thereon, by folding between the antenna circuits.

6. A method for manufacturing an IC tag, comprising the steps of:

forming antenna circuits on a belt-like substrate portion;

punching out the substrate portion, on which the antenna circuits are formed, into a tag-like shape; and

folding the tag-like substrate portion between the plurality of antenna circuits formed thereon.

7. A method for manufacturing an IC card, comprising the steps of:

forming antenna circuits on a belt-like substrate portion;

punching out the substrate portion, on which the antenna circuits are formed, into a card-like shape; and

folding the card-like substrate portion between the plurality of antenna circuits formed thereon.