Title:
CARD
Document Type and Number:
Japanese Patent JPH07214956
Kind Code:
A
Abstract:
PURPOSE: To provide a card capable of immediately detecting injustice by a processor when injustice is executed to prevent a dishonest act.
CONSTITUTION: A card is constituted of a card main body 10, the first reading code 11 showing the inherent data such as use frequency formed on the surface of the card main body 10 in a visible state and a second reading code 12 formed using invisible ink and showing the same inherent data as the first reading code. By this constitution, it becomes generally impossible that a user operates the second invisible reading code 12 arbitrarily.
Inventors:
SUZUKI MANABU
NOJIMA SHIGEKI
NOJIMA SHIGEKI
Application Number:
JP17881094A
Publication Date:
August 15, 1995
Filing Date:
July 29, 1994
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B42D15/10; G06K19/06; G06K19/10; (IPC1-7): B42D15/10; G06K19/06; G06K19/10