JPH0340485B2 - - Google Patents

Info

Publication number
JPH0340485B2
JPH0340485B2 JP56000026A JP2681A JPH0340485B2 JP H0340485 B2 JPH0340485 B2 JP H0340485B2 JP 56000026 A JP56000026 A JP 56000026A JP 2681 A JP2681 A JP 2681A JP H0340485 B2 JPH0340485 B2 JP H0340485B2
Authority
JP
Japan
Prior art keywords
particles
particle
fine
iron oxyhydroxide
granules
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 - Lifetime
Application number
JP56000026A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57113202A (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 JP56000026A priority Critical patent/JPS57113202A/ja
Publication of JPS57113202A publication Critical patent/JPS57113202A/ja
Publication of JPH0340485B2 publication Critical patent/JPH0340485B2/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
    • G11B5/70647—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

Landscapes

  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP56000026A 1981-01-05 1981-01-05 Manufacture of acicular ultrafine particle of iron oxyhydroxide Granted JPS57113202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56000026A JPS57113202A (en) 1981-01-05 1981-01-05 Manufacture of acicular ultrafine particle of iron oxyhydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56000026A JPS57113202A (en) 1981-01-05 1981-01-05 Manufacture of acicular ultrafine particle of iron oxyhydroxide

Publications (2)

Publication Number Publication Date
JPS57113202A JPS57113202A (en) 1982-07-14
JPH0340485B2 true JPH0340485B2 (esLanguage) 1991-06-19

Family

ID=11462867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56000026A Granted JPS57113202A (en) 1981-01-05 1981-01-05 Manufacture of acicular ultrafine particle of iron oxyhydroxide

Country Status (1)

Country Link
JP (1) JPS57113202A (esLanguage)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926800A (esLanguage) * 1972-07-05 1974-03-09
JPS52135897A (en) * 1976-05-09 1977-11-14 Toda Kogyo Corp Process for preparing cobaltt modified acicular crystal magnetic ironoxide particle
JPS53114799A (en) * 1977-03-07 1978-10-06 Toda Kogyo Corp Method of making magnetic iron oxide powder for use in magnetic recording material
JPS5613409A (en) * 1979-07-06 1981-02-09 Sony Corp Manufacture of ferromagnetic alloy powder
US4305753A (en) * 1980-07-31 1981-12-15 Hercules Incorporated Process for producing ferromagnetic metallic particles

Also Published As

Publication number Publication date
JPS57113202A (en) 1982-07-14

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