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US 5,476,605 AGranted
Mn-Zn ferrite
AssigneeTDK Corporation
InventorsNaoe Hirai, Tohoru Murase, Katsunobu Okutani, Teruo Mori
Life of this patent
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Abstract
A Mn-Zn ferrite containing a maximum of 0.005 wt. % P.
Claims3
A Mn-Zn ferrite having a phosphorus content of 0.0022 to 0.0044 wt. %, which is produced by forming the ferrite from an iron oxide powder containing 0.1 to 0.3 wt. % of manganese and less than 0.005 wt. % of phosphorus.
Dependencies are inferred from the claim text.