Title:
LIGHT-EMITTING MEDIUM, FORGERY PREVENTION MEDIUM, AND METHOD FOR DETERMINING AUTHENTICITY OF SAME
Document Type and Number:
WIPO Patent Application WO/2018/168742
Kind Code:
A1
Abstract:
To provide a light-emitting medium whereby different light-emitting forms can be realized that can easily be discriminated using a normal blacklight, and to provide a forgery prevention medium and a method for determining authenticity of the light-emitting medium. A light-emitting medium 1, 1A provided with a substrate 2 and a first light-emitting region 3 and a second light-emitting region 4 disposed on both sides of the substrate 2, the substrate 2 comprising a selective transmission region for transmitting non-visible light in a first wavelength region and essentially not transmitting non-visible light in a second wavelength region different from the first wavelength region, and the first light-emitting region 3 and the second light-emitting region 4 emitting light when irradiated by non-visible light in the first wavelength region and also emitting light when irradiated by non-visible light in the second wavelength region.
Inventors:
AOYAMA YUKO (JP)
SATO JUN (JP)
SATO JUN (JP)
Application Number:
PCT/JP2018/009427
Publication Date:
September 20, 2018
Filing Date:
March 12, 2018
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B41M3/14; B41M3/06; B42D25/351; B42D25/378
Foreign References:
| JP2016091121A | 2016-05-23 | |||
| US20060249951A1 | 2006-11-09 | |||
| JP5681725B2 | 2015-03-11 | |||
| JP4418881B2 | 2010-02-24 | |||
| JP2012011550A | 2012-01-19 | |||
| JP5573469B2 | 2014-08-20 | |||
| JP4276864B2 | 2009-06-10 | |||
| JP4498825B2 | 2010-07-07 |
Other References:
See also references of EP 3597442A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF:
Previous Patent: CARBON FOAM AND MANUFACTURING METHOD THEREFOR
Next Patent: INFORMATION PROCESSING DEVICE, CONTROL METHOD, AND PROGRAM
Next Patent: INFORMATION PROCESSING DEVICE, CONTROL METHOD, AND PROGRAM