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US 9,957,167 B2Granted
Method of manufacturing hexagonal ferrite powder, hexagonal ferrite powder, magnetic recording medium and method of manufacturing magnetic recording medium
AssigneeFUJIFILM Corporation
InventorMasashi Shirata
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Abstract
The method of manufacturing hexagonal ferrite powder includes preparing a hexagonal ferrite precursor by mixing an iron salt and a divalent metal salt in a water-based solution, and converting the hexagonal ferrite precursor into hexagonal ferrite within a reaction flow passage, within which a fluid flowing therein is subjected to heating and pressurizing, by continuously feeding a water-based solution containing the hexagonal ferrite precursor and gelatin to the reaction flow passage.
Claims18
A method of manufacturing hexagonal ferrite powder,
- which comprises:
- preparing a hexagonal ferrite precursor by mixing an iron salt and a divalent metal salt in a water-based solution;
- and
- converting the hexagonal ferrite precursor into hexagonal ferrite within a reaction flow passage, within which a fluid flowing therein is subjected to heating and pressurizing, by continuously feeding a water-based solution comprising the hexagonal ferrite precursor and gelatin to the reaction flow passage.
1 more element
Dependencies are inferred from the claim text.