IC card and method of manufacturing the same

Registers – Records – Particular code pattern

Reexamination Certificate

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Details

C235S380000

Reexamination Certificate

active

07090139

ABSTRACT:
The invention provides an IC card in which it is difficult to separate IC chips from the IC card. In accordance with the invention, an IC card formed by laminating a plurality of substrates can include a sensor for identifying an authorized person, a signal processing circuit for processing the identification based on an output from the sensor and a card-shaped card medium containing the sensor and the signal processing circuit. At least the signal processing circuit can include a thin film circuit which is sufficiently thinner than the card medium and contains a material which is dissolvable equally to or more than the card medium.

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patent: 2001/0002874 (2001-06-01), Sakamoto et al.

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