| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f26050f88749eb4c1733df80cf863e7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5fb9798bf05293ffe6d2e0fde58c3cdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b46e16d4049356ec8e5d510dadfcf3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_411524151c3b56b39bb3d267c59a82cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d3d9bfc0212b34777822c72388ccc28b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8c8e9e4eaa55d9cb65bd6ddf666b103a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F2999-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F2998-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C2202-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-112
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C33-0235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-712
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-113 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-20 |
| filingDate |
2011-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_954d7d7fe7333da710804f97b3ebe171
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_caadf1cbc7cb48f3cbbb15b42850f19f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85e76b1f597e42538c167d18c7e02fc9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48bdb0f1d26c86da9d50bb3354c9e9a3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e272d833513aba6601cf2b7504189930 |
| publicationDate |
2012-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012042750-A1 |
| titleOfInvention |
Process for producing magnetic metal particles for magnetic recording, and magnetic recording medium |
| abstract |
The present invention relates to a process for producing magnetic metal particles for magnetic recording, comprising: n heat-treating goethite particles having an aluminum content of 4 to 50 atom % in terms of Al based on whole Fe to obtain hematite particles; and n heat-reducing the hematite particles at a temperature of 200 to 600° C., n the goethite particles being obtained by adding a peroxodisulfate to a reaction solution comprising: n a ferrous salt aqueous solution and n a mixed alkali aqueous solution comprising: n an alkali hydrogen carbonate aqueous solution or alkali carbonate aqueous solution and n an alkali hydroxide aqueous solution before initiation of an oxidation reaction of the reaction solution, and then conducting the oxidation reaction. |
| priorityDate |
2008-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |