Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44b2ac87aeadb161b83426d9cf6c4bdc |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-218 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24082 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B2007-0009 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24079 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2472 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-248 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-0045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24088 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-258 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-125 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-248 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-013 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-0045 |
filingDate |
2002-03-28^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2004-03-02^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7623ea0857d07c46b7fd1711f57a7df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67af636f18d3bad09501ead80be0b696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_829cde14ecd215d1d7b66e674f5bab74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99f1b6397b5c232e32ee26b02f2baad5 |
publicationDate |
2004-03-02^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-6699557-B2 |
titleOfInvention |
Optical recording medium and optical recording method |
abstract |
An optical recording medium (10) is adapted such that information is recorded by forming recording marks on a recording layer (12) that covers grooves (16) of an optical transparent substrate (14). In the recording layer (16), contiguously defined along a feed direction S of irradiation are virtual recording cells (40) which have a given unit length in the feed direction S of irradiation along the groove 16 and a given unit width in the direction orthogonal thereto. In addition, the groove width W is set so that 0.20x(lambda/NA)<W<0.50x(lambda/NA), where lambda is the wavelength of a laser beam to be irradiated with and NA is the numerical aperture of the objective lens for the laser beam in a irradiation optical system. The irradiation time is set in five stages or more to radiate the laser beam, thereby making it possible to record information in multi-levels. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002044512-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6956804-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6891790-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002191519-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005013234-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7167439-B2 |
priorityDate |
2001-03-30^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |