| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d70c1fca1b1dc7e39595df39371b0fcd |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24893
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24876
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-913 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-0045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G5-04 |
| filingDate |
1990-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cedd747fdb5d4bb633e9fd18ceae7dc2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6dbdd410a30ecb5880111921df0ca7de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e919b317222da9c8af1f1b34a6cd400
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6475e78d3d1cdf2e5948ce43771568cd |
| publicationDate |
1991-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0410183-A2 |
| titleOfInvention |
Optical information recording medium and recording method |
| abstract |
An optical information recording medium comprising a light transmitting substrate (2) having a spiral pregroove (6) formed on its surface, a light absorptive layer (3) of a coloring matter formed on the substrate (2) directly or with other layer interposed therebetween, and a light reflective layer (4) made of a metal film formed on the light absorptive layer (3) directly or with other layer interposed therebetween, wherein ΔS ≦ 0.3 wherein ΔS is the optical phase difference represented by wherein d sub is the depth of the layer boundary on the substrate side of the light absorptive layer (3) at the portion corresponding to the pregroove (6), d abs is the depth of the layer boundary on the light absorptive layer side of the light reflective layer (4) at the portion corresponding to the pregroove (6), n sub is the real part of the complex refractive index of the substrate and any layer present on the substrate side of the light absorptive layer, n abs is the real part of the complex refractive index of the light absorptive layer (3), and λ is the wavelength of a laser beam. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5369321-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1363279-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1363279-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0509423-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03060894-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7263707-B2 |
| priorityDate |
1989-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |