| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b736c561cbdab9dc00a821b3227284aa |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-062
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2201-061 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G07D7-1205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6489
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-643
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M3-144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-037
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D5-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 |
| filingDate |
2016-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e3012812f514840990f4659466c0ec9 |
| publicationDate |
2018-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3353533-A1 |
| titleOfInvention |
Quantum dot security inks |
| abstract |
A security ink is provided which includes a liquid medium having a plurality of quantum dots disposed therein. Upon excitation with a suitable light source, the ink exhibits a quantum yield greater than 30%, and a photoluminescence which has a lifetime of more than 40 nanoseconds and which varies by at least 5% across the emission spectrum of the quantum dots. Also disclosed are apparatuses for using the same for anti-counterfeit or authentication purposes, which uniquely identifying the presence of photoluminescent materials by spectrally resolving their photoluminescence lifetime. |
| priorityDate |
2015-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |