Title:
INFORMATION IDENTIFICATION SHEET CAPABLE OF DISCRIMINATING IDENTITY AND ITS INFORMATION IDENTIFICATION METHOD
Document Type and Number:
Japanese Patent JPH0628707
Kind Code:
A
Abstract:
PURPOSE: To obtain the information identification sheet excellent for prevention of forgery or alteration and its information identification method.
CONSTITUTION: Random pattern information of different kinds of fibers is read or recorded and the recording of the random pattern is repetitively identified by blending a specific different kind of fibers to the information identification sheet and giving an energy acting on the major component fibers or the specific different kind of fibers. Thus, the random pattern information is coded for each information identification sheet as a paper-print like a fingerprint for a person thereby providing the excellent effect for preventing forgery or alternation.
Inventors:
TAWARA YUKIO
ITO KAZUHIKO
MATSUSHITA TOSHIHIKO
MORISHITA SADAO
ITO KAZUHIKO
MATSUSHITA TOSHIHIKO
MORISHITA SADAO
Application Number:
JP18256492A
Publication Date:
February 04, 1994
Filing Date:
July 09, 1992
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
G11B7/244; G11B5/80; G11B7/24003; (IPC1-7): G11B7/24
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