| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a74c748e616a075e8491ce2fbe66e00 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F2202-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B26-026 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B42D25-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y20-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B42D15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B26-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G07D7-04 |
| filingDate |
2010-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5087b18cad146d7a5e135fef7150aae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac99376aee8a24736389dea7ee8e35cf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34d1359f35b6ab3827736dced8869dd8 |
| publicationDate |
2012-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2440412-A1 |
| titleOfInvention |
Security element containing a magnetic fluid |
| abstract |
The invention relates to a security element comprising an optical image that can be modified by an external magnetic field. According to the invention, the security element (30) comprises a plurality of microcapsules (40) containing a suspension of a carrier liquid (42) and magnetic nanoparticles that reversibly form a photonic crystal (56, 58) in an external magnetic field of a magnet (60) in the microcapsules (40). |
| priorityDate |
2009-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |