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 (en
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/en
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)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Compounds Of Iron (AREA)
JP2515973A 1973-03-05 1973-03-05 Expired JPS5321118B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2515973A JPS5321118B2 (en) 1973-03-05 1973-03-05
DE19742410517 DE2410517C3 (en) 1973-03-05 1974-03-05 A magnetic recording material, a method for producing the same, and a magnetic recording tape containing the same
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 (en) 1973-03-05 1973-03-05

Publications (2)

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

Family

ID=12158232

Family Applications (1)

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

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426450Y2 (en) * 1987-05-27 1992-06-25

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 (en) * 1977-02-12 1990-01-04 Basf Ag, 6700 Ludwigshafen Process for the production of acicular cobalt-containing magnetic iron oxide
JPS5939814B2 (en) * 1978-03-16 1984-09-26 ティーディーケイ株式会社 Method for manufacturing magnetic recording media
DE2905351A1 (en) 1979-02-13 1980-08-21 Basf Ag METHOD FOR PRODUCING NEEDLE-SHAPED COBAL-CONTAINING, MAGNETIC IRON OXIDE
DE2905352A1 (en) 1979-02-13 1980-08-21 Basf Ag METHOD FOR PRODUCING NEEDLE-SHAPED COBAL-CONTAINING MAGNETIC IRON OXIDE
JPS5852806A (en) * 1981-09-24 1983-03-29 Hitachi Maxell Ltd Magnetic recording medium
JPS6018609B2 (en) * 1981-10-01 1985-05-11 工業技術院長 Ferromagnetic powder and its manufacturing method
DE3438093A1 (en) * 1984-10-18 1986-04-24 Basf Ag, 6700 Ludwigshafen FERRIMAGNETIC PARTICLES AND METHOD FOR THEIR PRODUCTION
DE3631193A1 (en) * 1986-09-13 1988-03-24 Bayer Ag MAGNETIC IRON OXIDE PIGMENTS AND METHOD FOR THE PRODUCTION THEREOF
US4944985A (en) * 1988-04-11 1990-07-31 Leach & Garner Method for electroless plating of ultrafine or colloidal particles and products produced thereby
DE3910782C2 (en) * 1988-12-24 2003-08-28 Toda Kogyo Corp Process for the production of magnetic iron oxides and pigments thus obtained
CN112374877B (en) * 2020-10-09 2022-05-13 河南师范大学 CoFe with magnetoresistive switching behavior2O4-CrO2Method for preparing composite material

Citations (2)

* 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
JPS5224238A (en) * 1972-12-11 1977-02-23 Toshiyuki Oota Dip coating of aluminum

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974400U (en) * 1972-10-12 1974-06-27

Patent Citations (2)

* 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
JPS5224238A (en) * 1972-12-11 1977-02-23 Toshiyuki Oota Dip coating of aluminum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426450Y2 (en) * 1987-05-27 1992-06-25

Also Published As

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

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