A magnetic recording medium is disclosed. The magnetic recording medium is capable of high density recording; has excellent electromagnetic conversion properties including S/N ratio; whose magnetic powder has good dispersibility and good corrosion resistance; and that has good durability. The magnetic recording medium has a magnetic layer comprising a binder and magnetic metal powder dispersed in the binder. The powder has a specific surface area of not less than 45 m<2>/g, and comprises not less than 90 atomic % of iron atoms, not less than 0.1 atomic % to less than 5 atomic % of aluminum atoms and not less than 0.1 atomic % to less than 10 atomic % of nickel atoms and the aluminum atoms present in the superficial portion of individual particles of the powder are bound with oxygen atoms.
申请公布号
DE68912815(D1)
申请公布日期
1994.03.17
申请号
DE1989612815
申请日期
1989.04.26
申请人
KONICA CORP., TOKIO/TOKYO, JP
发明人
ISOBE, RYOSUKE KONICA CORPORATION, HINO-SHI TOKYO, JP;ANDO, YASUO KONICA CORPORATION, HINO-SHI TOKYO, JP