http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-20050198-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_30e3d3033a789d6a8c0ad34b140b492f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C18-16 |
| filingDate | 2005-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9d1bd68377f1ea1bb20b2016d81f7ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a9ccfe7d4a8fea6784512306cb620bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a10b0422e68aa1250fbf099448735649 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_357f683d0a71071701fee61a9685b1bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f85bfa2bbd55ac86428f0a5ef94678d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b59acabd5f245fef18b57ac1e5df18a |
| publicationDate | 2006-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-20050198-A1 |
| titleOfInvention | Disk substrate for a perpendicular magnetic recording medium and a perpendicular magnetic recording medium using the substrate |
| abstract | An object of the invention is to provide a disk substrate for a perpendicular magnetic recording medium, the substrate exhibiting sufficient productivity, serving a function as a soft magnetic backing layer of the perpendicular magnetic recording medium, and scarcely generating noises. Another object of the invention is to provide a perpendicular magnetic recording medium using such a substrate. The disk substrate 10 comprises at least a soft magnetic underlayer 2 formed on a nonmagnetic base plate 1 by means of an electroless plating method. The thermal expansion coefficient of the soft magnetic underlayer 2 is larger than a thermal expansion coefficient of the nonmagnetic disk shaped base plate1. A saturation magnetostriction constant (lambda)s satisfies a relation (lambda)s is greater than or equal to -1 x 10 to the power of (-5). <Figure 1> |
| priorityDate | 2004-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.