http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11316938-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_294881271413951a95f284b588a68e66 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-842 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-738 |
| filingDate | 1999-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91e8de2bd4a655b17971d948c8780cce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e0f09e4e9d58fad344b5e19f24153d2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8cb588881813f80d12a365ac193e52d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cd75a77b74a70e724965c1a0de249f2 |
| publicationDate | 1999-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11316938-A |
| titleOfInvention | Magnetic recording media |
| abstract | (57) [Summary] [PROBLEMS] To obtain a magnetic recording medium capable of obtaining good electromagnetic conversion characteristics even when achieving high-density recording. SOLUTION: A non-magnetic layer is formed as a lower layer 4 on a non-magnetic support 1 and a magnetic layer is formed as an upper layer 2, and the lower non-magnetic powder contains carbon black and needle-like inorganic material. The powder is included in a ratio of 70:30 to 90:10. The major axis length of the acicular inorganic powder is 0.05 ~ 0.2 μm, needle ratio 2-10. The average particle size of the carbon black is 0.01 to 0.04 μm. The surface roughness of the upper layer surface is set to 4.2 nm or less in center line average roughness Ra. |
| priorityDate | 1999-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.