Title:
GENUINE/COUNTERFEIT DISCRIMINATING METHOD, GENUINE/COUNTERFEIT DISCRIMINATION OBJECT, AND GENUINE/COUNTERFEIT DISCRIMINATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2000/033263
Kind Code:
A1
Abstract:
A genuine/counterfeit discriminating method characterized in that combinations of an electric field pattern, a magnetic pattern, an electron beam reaction pattern, and reflection or absorption patterns of visible light, ultraviolet radiation, and infrared radiation are discriminated by means of an electric field, magnetism, an electron beam, visible light, ultraviolet radiation, or infrared radiation. A genuine/counterfeit discrimination object characterized in that combinations of an electric field pattern, a magnetic pattern, an electron beam reaction pattern, and reflection or absorption patterns of visible light, ultraviolet radiation, and infrared radiation are recognized by means of an electric field, magnetism, an electron beam, visible light, ultraviolet radiation, or infrared radiation. A genuine/counterfeit discriminating device characterized by comprising any combination of a device for discriminating electric field patterns, a device for discriminating magnetic patterns, a device for discriminating electron beam reaction patterns, a device for discriminating visible light patterns, a device for discriminating ultraviolet radiation patterns, and a device for discriminating infrared radiation patterns, and a device for comparing patterns obtained by the devices from one another and discriminating them.
Inventors:
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
ATARASHI TAKAFUMI (JP)
Application Number:
PCT/JP1999/006586
Publication Date:
June 08, 2000
Filing Date:
November 25, 1999
Export Citation:
Assignee:
NITTETSU MINING CO LTD (JP)
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
NAKATSUKA KATSUTO (JP)
ATARASHI TAKAFUMI (JP)
International Classes:
G06T1/00; G07D7/00; G07D7/02; G07D7/04; G07D7/12; G07D7/20; (IPC1-7): G07D7/00
Domestic Patent References:
| WO1998007792A1 | 1998-02-26 |
Foreign References:
| JPH0644437A | 1994-02-18 | |||
| JPH08305923A | 1996-11-22 | |||
| JPH0712763A | 1995-01-17 | |||
| JPS6460350A | 1989-03-07 | |||
| JPH0790310A | 1995-04-04 |
Other References:
See also references of EP 1134704A4
Attorney, Agent or Firm:
Hagino, Taira (ARK Mori Building 12-32, Akasaka 1-chome Minato-ku Tokyo, JP)
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