Method of making a magnetically encodable card having magnetic particles uniformly distributed throughout
US6221296A · kind A · utility
11Cited by
18References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/06196
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of making a magnetically encodable card which comprises forming a dispersion of ferromagnetic particles in an organic fluid medium, forming a composite by intimately combining the dispersion with a thermoplastic resin plasticized by the organic fluid medium and forming the composite into an encodable card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.