| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0e7f7286c46e676b1bc0daf37b9f6c63 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-24079
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-00718 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B7-24 |
| filingDate |
2005-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1620d017e0b95725e904bf23dd9ada6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fea16aff54e9541d1796dcaef2e44fff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_906bc6b2b5d635f03006431f2f81e31e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_210a7ec519b8ade37e6f687f6bba4ea1 |
| publicationDate |
2006-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2006087959-A1 |
| titleOfInvention |
Optical disk |
| abstract |
An optical disk of a land-and-groove recording system capable of reducing a track pitch while suppressing the drop of an S/N ratio of reproduction signals is provided. The optical disk includes guide groove portions and space portions between the groove portions and is loaded to an optical disk recording/reproduction apparatus having a mechanism for removing or reducing leakage signals from adjacent tracks by using three or more light beam spots and signals are recorded to the groove portions and the space portions between the groove portions, wherein a wavelength λ of reproduction light irradiated from the optical disk recording/reproduction apparatus and a refractive index n of a cover layer on an incidence side of reproduction light or a substrate are from λ/12n to λ/6n. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9245570-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104347090-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111244271-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111244271-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010014407-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008002561-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010195474-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2731105-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8243577-B2 |
| priorityDate |
2004-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |