| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c6a9fd6219b32cd3893a49979951bf4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6fdf596275d1ad69d4e5f96061caa4d3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1dd1ad9e02773167f651a7e0e9f75907
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24033a6746b98ed83fc5d57e8f257eaf |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2991
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70621
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-061 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-0054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-714 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-14 |
| filingDate |
2010-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2013-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12e55c20e6e550de541fec1299d89ae3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b305ac4ba3d9beffab59994be6aeeefd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ad3edac28f0f0b4a95e967443a81061 |
| publicationDate |
2013-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8357222-B2 |
| titleOfInvention |
Magnetic metal powder suitable for use in magnetic recording media and method of manufacturing the powder |
| abstract |
A metal magnetic powder for a magnetic recording medium is provided whose particles have a metal magnetic phase, composed mainly of Fe or Fe plus Co, and an oxide layer, wherein the average major axis length of the powder particles is 10-50 nm, the average particle volume including the oxide layer is 5,000 nm 3 or less, the atomic ratio (R+Al+Si)/(Fe+Co) calculated using the content values (at. %) of the elements contained in the powder particles is 20% or less, where R is rare earth element (Y being treated as a rare earth element). The metal magnetic powder is obtained by using a complexing agent and a reducing agent to elute nonmagnetic constituents after firing. The metal magnetic powder exhibits a large saturation magnetization as for its particle volume while maintaining weatherability comparable to the conventional level and is suitable for a coated-type magnetic recording medium. |
| priorityDate |
2006-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |