| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5fb9798bf05293ffe6d2e0fde58c3cdb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2991
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-52 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-70621 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-706
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-06 |
| filingDate |
1999-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2001-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97ffe76825e3150a1e3face1a4bd25f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eddfc1a094df6216cd81021232f79d0b |
| publicationDate |
2001-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6183868-B1 |
| titleOfInvention |
Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles |
| abstract |
The present invention relates to spindle-shaped goethite particles and spindle-shaped hematite particles, which have a narrow particle size distribution, include no dendrites, and have an appropriate particle shape and a large aspect ratio (major axial diameter/minor axial diameter); and spindle-shaped magnetic iron based alloy particles which are obtained from the spindle-shaped goethite particle or spindle-shaped hematite particles as a beginning material and which have a high coercive force and an excellent coercive force distribution. Such spindle-shaped goethite particles comprises: goethite seed containing 0.5 to 25 atm % of Co based on the total Fe in the spindle-shaped goethite particles, and goethite surface layer containing 0.5 to 15 atm % of Al based on the total Fe in the spindle-shaped goethite particles; and having an average major axial diameter of 0.05 to 1.0 mum. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002031666-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008153904-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1764806-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6830635-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006088564-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006115507-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006115509-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6753084-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6720094-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7438923-B2 |
| priorityDate |
1996-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |