Method for producing a data carrier and data carrier produced therefrom
US8505979B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2007 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Oct 20, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D2035/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of producing a data carrier with a marking is disclosed. The data carrier includes a laser-markable portion and a beam-modifying portion adjacent the laser-markable portion. The beam-modifying portion has a beam modifying property. The method includes irradiating a laser beam through the beam-modifying portion to allow the beam modifying property thereof to modify at least one beam property to produce a resultant laser beam. This resultant laser beam creates a marking with a visual impression corresponding to the resultant laser beam at the laser-markable portion. The method further includes modifying the beam modifying property of at least a part of the beam-modifying portion through which the laser beam is irradiated for creating the marking so that the exact same resultant beam is difficult to be obtained thereat. A data carrier thereby produced is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.