| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_428b0a7949a0a7b179097d436a63a3bc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-21 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B23-281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-244 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-005 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-244 |
| filingDate |
2001-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e689d3eb1e0c9b1c3e1982a59b89ce0 |
| publicationDate |
2002-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0249010-A2 |
| titleOfInvention |
Lightfast limited replay disk and method of use |
| abstract |
An optically readable media (10) has an information-encoding layer (16) and at least one color-forming layer (12) that embodies an optical readout-limiting mechanism. In a first embodiment the at least one color-forming layer contains an additive that does not interfere with the optical readability of hte media for a duration of a readout period. The additive, upon eyposure to a source of optical radiation that is suitable for reversing the color-forming layer from an optical radiaiton that is suitable for reversing the color-forming layer from an optical readout inhibiting state to an optical readout enabling state, undergoes a transformation that maintains the color-forming layer in the optical readout inhibiting state. More specifically, exposure to the source causes the color-forming layer to photobleach and athe additive to oxidize, where the oxidation of the additive permanently inhibits the optical readability of the media. The additive may be a leuco dye. In one embodiment the color-forming layer is comprised of 3-[2,3-bis(4-diethylaminophenyl)vinyl]-6-dimethylaminophthalide and the additive is comprised of benzoyl leucomethylene blue. In a further embodiment the additive is placed into a protective layer (18) that overlies the color-forming layer. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1358653-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005025885-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03090219-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100385514-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006130496-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004070718-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6861541-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1358653-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6958181-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004044911-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005010872-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1411507-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004044911-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1411507-A2 |
| priorityDate |
2000-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |