| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_18e1fd49abcd9328261ae3adc27b66f2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-84
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/C01P2004-61 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-0819
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-0072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-0036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-1131
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-1136
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-1085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G9-1075 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G9-113
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G9-107 |
| filingDate |
2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16910864a4a372af2e4facb209fbd3de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7544eb7df93f7c813593507a1d98fb9f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b5232e55c6c16e03bd27074c9eed915 |
| publicationDate |
2019-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2019086829-A1 |
| titleOfInvention |
Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer |
| abstract |
An object of the present invention is to provide a ferrite carrier core material for an electrophotographic developer having desired resistance properties and charging properties with small environmental variation of resistivity and charge amount while maintaining the advantages of ferrite carriers, a ferrite carrier for an electrophotographic developer, an electrophotographic developer using the ferrite carrier, and a method for manufacturing the ferrite carrier core material for an electrophotographic developer. In order to solve the problem, a ferrite carrier core material comprising ferrite particles containing 15 mass % or more and 25 mass % or less of Mn, 0.5 mass % or more and 5.0 mass % or less of Mg, 0.05 mass % or more and 4.0 mass % of Sr, and 45 mass % or more and 55 mass % or less of Fe, with Si localized in the surface thereof is used. |
| priorityDate |
2016-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |