JPS64801B2 - - Google Patents

Info

Publication number
JPS64801B2
JPS64801B2 JP54150881A JP15088179A JPS64801B2 JP S64801 B2 JPS64801 B2 JP S64801B2 JP 54150881 A JP54150881 A JP 54150881A JP 15088179 A JP15088179 A JP 15088179A JP S64801 B2 JPS64801 B2 JP S64801B2
Authority
JP
Japan
Prior art keywords
magnetic powder
magnetic
producing
solution
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP54150881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5673408A (en
Inventor
Shintaro Suzuki
Juichi Omote
Akira Ishida
Shuichi Mya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanto Denka Kogyo Co Ltd
Original Assignee
Kanto Denka Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanto Denka Kogyo Co Ltd filed Critical Kanto Denka Kogyo Co Ltd
Priority to JP15088179A priority Critical patent/JPS5673408A/ja
Publication of JPS5673408A publication Critical patent/JPS5673408A/ja
Publication of JPS64801B2 publication Critical patent/JPS64801B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • G11B5/70668—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 containing a dopant
    • G11B5/70673—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 containing a dopant containing Co

Landscapes

  • Paints Or Removers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
JP15088179A 1979-11-21 1979-11-21 Magnetic powder for magnetic recording and magnetic tape employing that magnetic powder Granted JPS5673408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15088179A JPS5673408A (en) 1979-11-21 1979-11-21 Magnetic powder for magnetic recording and magnetic tape employing that magnetic powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15088179A JPS5673408A (en) 1979-11-21 1979-11-21 Magnetic powder for magnetic recording and magnetic tape employing that magnetic powder

Publications (2)

Publication Number Publication Date
JPS5673408A JPS5673408A (en) 1981-06-18
JPS64801B2 true JPS64801B2 (OSRAM) 1989-01-09

Family

ID=15506415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15088179A Granted JPS5673408A (en) 1979-11-21 1979-11-21 Magnetic powder for magnetic recording and magnetic tape employing that magnetic powder

Country Status (1)

Country Link
JP (1) JPS5673408A (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107503A (ja) * 1982-12-13 1984-06-21 Kanto Denka Kogyo Kk 主成分を鉄とする磁気記録用磁性粉末の製造法
JPS59154638A (ja) * 1983-02-23 1984-09-03 Hitachi Maxell Ltd 磁気記録用金属磁性粉末とその製造法
JPS62108738A (ja) * 1985-11-08 1987-05-20 Fuji Photo Film Co Ltd 強磁性酸化鉄粉末の製造方法
CN110205748B (zh) * 2019-04-30 2022-04-01 西南石油大学 一种β-FeOOH/聚丙烯腈的复合纳米纤维膜及其制备方法与应用

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835241B2 (ja) * 1976-02-13 1983-08-01 ソニー株式会社 鉄−銅を主成分とする合金磁性粉の製造方法

Also Published As

Publication number Publication date
JPS5673408A (en) 1981-06-18

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