JPS5941289B2 - 磁性酸化鉄の製造方法 - Google Patents

磁性酸化鉄の製造方法

Info

Publication number
JPS5941289B2
JPS5941289B2 JP49028423A JP2842374A JPS5941289B2 JP S5941289 B2 JPS5941289 B2 JP S5941289B2 JP 49028423 A JP49028423 A JP 49028423A JP 2842374 A JP2842374 A JP 2842374A JP S5941289 B2 JPS5941289 B2 JP S5941289B2
Authority
JP
Japan
Prior art keywords
cobalt
iron oxide
magnetic
magnetic iron
added
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
JP49028423A
Other languages
English (en)
Japanese (ja)
Other versions
JPS50119997A (enrdf_load_stackoverflow
Inventor
幸司 笹沢
真人 清水
達治 北本
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP49028423A priority Critical patent/JPS5941289B2/ja
Priority to CA221,442A priority patent/CA1056150A/en
Priority to DE19752510799 priority patent/DE2510799A1/de
Publication of JPS50119997A publication Critical patent/JPS50119997A/ja
Priority to US05/862,884 priority patent/US4179387A/en
Publication of JPS5941289B2 publication Critical patent/JPS5941289B2/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
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70694—Non-stoechiometric ferro-ferrioxydes, e.g. berthollide

Landscapes

  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
JP49028423A 1974-03-12 1974-03-12 磁性酸化鉄の製造方法 Expired JPS5941289B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP49028423A JPS5941289B2 (ja) 1974-03-12 1974-03-12 磁性酸化鉄の製造方法
CA221,442A CA1056150A (en) 1974-03-12 1975-03-04 Magnetic fe oxide and process for producing the same
DE19752510799 DE2510799A1 (de) 1974-03-12 1975-03-12 Magnetisches eisenoxid und verfahren zu dessen herstellung
US05/862,884 US4179387A (en) 1974-03-12 1977-12-21 Process for producing magnetic FE oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49028423A JPS5941289B2 (ja) 1974-03-12 1974-03-12 磁性酸化鉄の製造方法

Publications (2)

Publication Number Publication Date
JPS50119997A JPS50119997A (enrdf_load_stackoverflow) 1975-09-19
JPS5941289B2 true JPS5941289B2 (ja) 1984-10-05

Family

ID=12248237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49028423A Expired JPS5941289B2 (ja) 1974-03-12 1974-03-12 磁性酸化鉄の製造方法

Country Status (3)

Country Link
JP (1) JPS5941289B2 (enrdf_load_stackoverflow)
CA (1) CA1056150A (enrdf_load_stackoverflow)
DE (1) DE2510799A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276183A (en) * 1978-10-25 1981-06-30 Pfizer Inc. Cobalt modified magnetic iron oxide
JPS56107506A (en) * 1980-01-30 1981-08-26 Anelva Corp Magnetic thin-film
JPS5832027A (ja) * 1981-07-28 1983-02-24 Ishihara Sangyo Kaisha Ltd コバルト含有酸化鉄強磁性粉末の製造方法
JPS5860630A (ja) * 1981-10-07 1983-04-11 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄の製造方法
JPS5888122A (ja) * 1981-11-20 1983-05-26 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄の製造方法
MY107614A (en) * 1990-09-26 1996-05-15 Ishihara Sangyo Kaisha Acicular ferromagnetic iron oxide particles and process for producing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790376A (fr) * 1971-10-27 1973-02-15 Ampex Particules d'oxyde de fer magnétique dopé au cobalt
BE792847A (fr) * 1971-12-17 1973-06-15 Bayer Ag Procede de preparation d'oxydes de fer magnetiques aciculaires
JPS5529577B2 (enrdf_load_stackoverflow) * 1972-02-04 1980-08-05

Also Published As

Publication number Publication date
CA1056150A (en) 1979-06-12
JPS50119997A (enrdf_load_stackoverflow) 1975-09-19
DE2510799A1 (de) 1975-09-18

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