JPS5321118B2 - - Google Patents

Info

Publication number
JPS5321118B2
JPS5321118B2 JP2515973A JP2515973A JPS5321118B2 JP S5321118 B2 JPS5321118 B2 JP S5321118B2 JP 2515973 A JP2515973 A JP 2515973A JP 2515973 A JP2515973 A JP 2515973A JP S5321118 B2 JPS5321118 B2 JP S5321118B2
Authority
JP
Japan
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
JP2515973A
Other languages
Japanese (ja)
Other versions
JPS49113199A (enrdf_load_stackoverflow
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 filed Critical
Priority to JP2515973A priority Critical patent/JPS5321118B2/ja
Priority to DE19742410517 priority patent/DE2410517C3/de
Priority to GB983874A priority patent/GB1441183A/en
Publication of JPS49113199A publication Critical patent/JPS49113199A/ja
Publication of JPS5321118B2 publication Critical patent/JPS5321118B2/ja
Expired 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
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70689—Magnetite
    • 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
    • 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
    • G11B5/70647—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 with a skin
    • 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
    • G11B5/70657—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 with a skin

Landscapes

  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
JP2515973A 1973-03-05 1973-03-05 Expired JPS5321118B2 (enrdf_load_stackoverflow)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2515973A JPS5321118B2 (enrdf_load_stackoverflow) 1973-03-05 1973-03-05
DE19742410517 DE2410517C3 (de) 1973-03-05 1974-03-05 Magnetisches Aufzeichnungsmaterial, Verfahren zu dessen Herstellung und magnetisches Aufzeichnungsband mit einem Gehalt desselben
GB983874A GB1441183A (en) 1973-03-05 1974-03-05 Magnetic recording particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2515973A JPS5321118B2 (enrdf_load_stackoverflow) 1973-03-05 1973-03-05

Publications (2)

Publication Number Publication Date
JPS49113199A JPS49113199A (enrdf_load_stackoverflow) 1974-10-29
JPS5321118B2 true JPS5321118B2 (enrdf_load_stackoverflow) 1978-06-30

Family

ID=12158232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2515973A Expired JPS5321118B2 (enrdf_load_stackoverflow) 1973-03-05 1973-03-05

Country Status (3)

Country Link
JP (1) JPS5321118B2 (enrdf_load_stackoverflow)
DE (1) DE2410517C3 (enrdf_load_stackoverflow)
GB (1) GB1441183A (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5259894A (en) * 1975-11-13 1977-05-17 Tdk Corp Magnetic material
US4137342A (en) * 1976-10-29 1979-01-30 Minnesota Mining And Manufacturing Company Cobalt-doped acicular hyper-magnetite particles
DE2705967C2 (de) * 1977-02-12 1990-01-04 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadelförmigem kobalthaltigem magnetischem Eisenoxid
JPS5939814B2 (ja) * 1978-03-16 1984-09-26 ティーディーケイ株式会社 磁気記録媒体の製造方法
DE2905352A1 (de) 1979-02-13 1980-08-21 Basf Ag Verfahren zur herstellung von nadelfoermigem kobalthaltigem magnetischem eisenoxid
DE2905351A1 (de) 1979-02-13 1980-08-21 Basf Ag Verfahren zur herstellung von nadelfoermigem kobalthaltigem, magnetischem eisenoxid
JPS5852806A (ja) * 1981-09-24 1983-03-29 Hitachi Maxell Ltd 磁気記録媒体
JPS6018609B2 (ja) * 1981-10-01 1985-05-11 工業技術院長 強磁性粉末およびその製造方法
DE3438093A1 (de) * 1984-10-18 1986-04-24 Basf Ag, 6700 Ludwigshafen Ferrimagnetische teilchen und verfahren zu ihrer herstellung
DE3631193A1 (de) * 1986-09-13 1988-03-24 Bayer Ag Magnetische eisenoxidpigmente und verfahren zu ihrer herstellung
US4944985A (en) * 1988-04-11 1990-07-31 Leach & Garner Method for electroless plating of ultrafine or colloidal particles and products produced thereby
DE3910782C2 (de) * 1988-12-24 2003-08-28 Toda Kogyo Corp Verfahren zur Herstellung von magnetischen Eisenoxiden und so erhaltene Pigmente
CN112374877B (zh) * 2020-10-09 2022-05-13 河南师范大学 具有磁阻转换行为的CoFe2O4-CrO2复合材料的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA902968A (en) * 1972-06-20 Sony Corporation Method of making acicular cobalt-modified maghemite powder
JPS4974400U (enrdf_load_stackoverflow) * 1972-10-12 1974-06-27
JPS5224238A (en) * 1972-12-11 1977-02-23 Toshiyuki Oota Dip coating of aluminum

Also Published As

Publication number Publication date
JPS49113199A (enrdf_load_stackoverflow) 1974-10-29
GB1441183A (en) 1976-06-30
DE2410517A1 (de) 1974-09-12
DE2410517C3 (de) 1979-09-27
DE2410517B2 (de) 1979-02-01

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