| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0e7f7286c46e676b1bc0daf37b9f6c63 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F1-00 |
| filingDate |
1979-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfe32fc2f57e4464e0446d26a6313ecd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_540bb733c20dc58a653c2fa84993e5e2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec61714eb069b5f3ea7e97ff16375f47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8efddfd61b48f9d3a112474c94faed8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b69107caaea81aa2245139d2a74b0490
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e11049697e30ee618cc9b9fe20fda049 |
| publicationDate |
1980-12-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S55154501-A |
| titleOfInvention |
Ferromagnetic powder and its production |
| abstract |
PURPOSE: To obtain the powder of superior magnetic characteristic by depositing the specific amount of Ca atoms on metal iron surfaces. n CONSTITUTION: Ca components are deposited on the surfaces of the needle-form particle powder composed primarily of ion oxide or iron oxy-oxide, in such a manner that the atom ratio of Ca/Fe become 0.001W0.05, and this is reduced by heating to obtain the powder composed primarily of metal iron. For example, CaCl 2 . 2H 2 O 4.61g is dissolved in pure water 1l and α-FeOOH of grain size about 0.5μm 100g is suspended in this under stirring. This is evaporated of its moisture content at 100°C in a dryer and the resulted powder is heated for 2hr at 600°C in an electric furnace. Next, this powder is reduced by heating at 300W500°C at hydrogen flow 1l/min in the electric furnace. This yields the metal iron powder containing calcium of superior magnetic characteristic. n COPYRIGHT: (C)1980,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6250889-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5819733-A |
| priorityDate |
1979-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |