Registers – Records – Conductive
Patent
1996-06-28
1999-01-05
Le, Thien Minh
Registers
Records
Conductive
235488, G06K 1906
Patent
active
058566627
ABSTRACT:
The present invention is intended to provide an information carrier which has flat surfaces, is excellent in beautiful appearance, and permits necessary printing thereon after the production of the carrier, and a process for producing such a thin information carrier easily in high yield. The substrate 3 of the information storage carrier is composed of a material obtained by infiltrating a resin 8 into a reinforcer 7 made of a sheet-like material deformable in the direction of the thickness. An IC module 1 and a coil 2 are embedded in indents 34 formed by compressing the reinforcer 7 in the direction of the thickness, to smoothen both right and reverse sides of the substrate 3. Cover sheets 4 and 5 are attached to the right and reverse sides, respectively, of the substrate 3 with a bonding layer 6 to obtain the required information storage carrier. The substrate 3 having smooth right and reverse sides can be produced by placing the IC module 1 and the coil 2 on the aforesaid reinforcer impregnated with the resin and pressing the IC module 1 and the coil 2 until the surface of the resin layer and the surfaces of the IC module 1 and the coil 2 are placed on the same plane.
REFERENCES:
patent: 5399847 (1995-03-01), Droz
patent: 5585618 (1996-12-01), Droz
Daido Kazuhiko
Kohama Kyoichi
Takasugi Wasao
Hitachi Maxell Ltd.
Le Thien Minh
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