| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44b2ac87aeadb161b83426d9cf6c4bdc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-259
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-2431
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-24314
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-258 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-0052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-00455
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-126 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-125 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-243
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-0045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-26 |
| filingDate |
2001-12-12^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3257c11a04775c733cefb3fd688d144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f724b05f15950e0354908b5f18846491 |
| publicationDate |
2003-06-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2003178447-A |
| titleOfInvention |
Optical recording medium recording / reproducing method and optical recording medium |
| abstract |
(57) Abstract: A write-once optical recording medium that can maintain a high recording / reproducing stability at low cost while allowing a relative ratio of read power to write power to be set high. Get. SOLUTION: High-speed write-once type optical recording medium recording layer 1 of medium 10 Numeral 8 is formed by laminating first and second sub-recording layers 18A and 18B each containing one kind of metal, for example, Al and Sb as main components. With the optical recording medium 10 having this configuration, the write power P The ratio Pw / Pr of w to the read power Pr is 2.0 to 8. Take a value in the range of 0. A laser beam having a laser power of 200 nm to 450 nm and a write power Pw of 2.5 to 5.0 mW is applied to the recording layer 18 at a recording transfer speed of 35 Mbps or more. , The Al and Sb contained in each of the sub-recording layers 18A and 18B are diffused and mixed by the irradiation to form a recording mark having a low reflectance, a single layer, and irreversibly changed. . |
| priorityDate |
2001-12-12^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |