Magnetically structured materials
US4242400A · kind A · utility
12Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1978 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Oct 4, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2486
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Production of a magnetically and visibly detectable two-layer structure by coating a first layer including a binder with a visibly distinct magnetic material in a dispersion comprising a partial solvent for the binder and selectively applying a magnetic field to cause the magnetic material to migrate into the first layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.