| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_faf522b8b83eded745c73018576219ba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2eb784806bf4ec15eb978409697439d7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-12 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-344 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-00 |
| filingDate |
2020-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a9b3c7be3a34625082988d7995a786c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce56c2f573734f5d95bb2401cb5edd5d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e5d6725cba9e1e5f0ffdd14da5b5ae0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_000b02b99483ab628e4ed282da06fcb3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_885cc4f2765f586b6d95d092f95bdc74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2195eb4e4c7273a704a1eecbe57b89d0 |
| publicationDate |
2020-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-202037563-A |
| titleOfInvention |
Iron-based oxide magnetic powder and method for producing the same |
| abstract |
This invention provides an iron-based oxide magnetic powder having good thermal stability with small change in coercivity even in a high temperature environment, that is formed of a [epsilon] iron oxide in which a part of Fe site is substituted by other metal elements; this invention also provides a method for producing iron-based oxide magnetic powder. An acidic aqueous solution containing trivalent iron ions and metal ions for partially replacing a part of Fe site is neutralized to produce a precipitate of an iron hydroxide containing the substituting metal elements, and a silane compound is used to coat silicon oxide on the precipitate while phosphorus-containing ions are brought into co-existing, thereby obtaining an iron-based oxide magnetic powder, the iron-based oxide magnetic powder having good thermal stability with small change in coercivity even in a high temperature environment, that is formed of particles of a [epsilon] iron oxide in which a part of Fe site is substituted by other metal elements. |
| priorityDate |
2019-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |