AUTHENTICITY JUDGING METHOD AND DEVICE THEREFOR

Title:

AUTHENTICITY JUDGING METHOD AND DEVICE THEREFOR

Document Type and Number:

WIPO Patent Application WO/2005/055154

Kind Code:

A1

Abstract:

To ensure a high-reliability authenticity judgment on an information-providing-substance-imparted object. Individual fluorescent spectra, respectively emitted from a finite number of types of true information providing substances out of information providing substances that emit fluorescence when irradiated with an electromagnetic wave in a specified wavelength region, are stored in advance. An object (90) to be subjected to authenticity judgment is irradiated with an electromagnetic wave in a specified wavelength region to detect an emitted object fluorescent spectrum. The detected object fluorescent spectrum is reproduced by a combination of individual fluorescent spectra of a finite number of types of true information providing substances stored in advance, and, if it cannot be reproduced, the object (90) is judged to be a fake.

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Inventors:

MIYAKO YOSHIHITO (JP)

Application Number:

PCT/JP2004/017794

Publication Date:

June 16, 2005

Filing Date:

November 30, 2004

Export Citation:

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Assignee:

PLAGENOM CO LTD (JP)
MIYAKO YOSHIHITO (JP)

International Classes:

B42D15/10; G01N21/64; G07D7/00; G07D7/06; G07D7/12; (IPC1-7): G07D7/00; B42D15/10; G01N21/64; G07D7/06

Foreign References:

JP2002332414A	2002-11-22
JP2002336798A	2002-11-26
JP2001356689A	2001-12-26
JP2003329588A	2003-11-19

Attorney, Agent or Firm:

Shimizu, Hisayoshi (4-26 Minamisemba 3-chome, Chuo-ku, Osaka-sh, Osaka 81, JP)

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