| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2258615b3f57aa14f910395c862a110e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2531
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-913 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-00455
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-00552
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-0052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-245 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-0045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-0055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-249
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-73 |
| filingDate |
1993-08-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_115433a3bd3662fd3c122e5c44cb3a55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_623d7e8128d23fcd3162b4dcb201f021 |
| publicationDate |
1994-03-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-4329351-A1 |
| titleOfInvention |
Methods for recording, reproducing and erasing information on and from an optical recording medium |
| abstract |
Recording, reproducing and erasing of information on and from an optical recording medium having a film consisting of a binder and a bis(thienylethene anhydride) photochromic cpd. of formula (I) with a light-activated ring opening/ring closing site comprises (i) recording by irradiation of the film with 300-500 nm light such that the temp. reaches T1 and ring closure of (I) occurs; (ii) reproducing the information by irradiation with 300-500 nm light to give temp. R2 which is below T1; and (iii) erasing by irradiating with 500-700 nm light so as to give temp. T1 and ring open cpd. (I). In (I), P and Q = opt. substd. benzene or naphthalene rings; and Me = methyl. ADVANTAGE - Medium has good reproduction. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-02080163-A1 |
| priorityDate |
1992-08-31^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |