Method for analyzing color code encoded in magnetic structure
US9564261B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Oct 12, 2011 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Jun 2, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a color encoding method including providing a composition including a liquid medium and magnetic nanoparticles dispersed in the liquid medium; applying a magnetic field to the composition to align the magnetic nanoparticles; and applying a patterned energy source to the composition to solidify the composition, wherein more than one region of the composition are sequentially solidified with varying magnetic field strength to fix a plurality of color codes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.