Security element for electronic article surveillance and method of manufacturing a security element
US6394357B1 · kind B1 · utility
2Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2437
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention relates to a security element for electronic article surveillance, having one lower and one upper conducting track with at least one winding each, the two conducting tracks being wound in opposing directions and overlapping in at least one area of overlap, and a dielectric layer in the area of overlap between the two conducting tracks. In a critical area in which a border edge of the lower and upper conducting tracks overlap, the dielectric layer is thicker than in the remaining area of overlap. The present invention also relates to a method of manufacturing such a security element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.