Photo-chemical generation of stable fluorescent derivatives of rhodamine B
US6280904A · kind A · utility
3Cited by
3References
16Claims
0Family size
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Inventors
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the field of optical recording materials, in particular, fluorescent compounds and matrices suitable for use in optical memory systems, including three dimensional optical memory systems for READ ONLY MEMORY (ROM). In particular, nonfluorescent Rhodamine B lactams are photochemically transformed into fluorescent Rhodamine B derivatives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.