JPS59147414A - コバルト含有磁性酸化鉄粉末の製造方法 - Google Patents

コバルト含有磁性酸化鉄粉末の製造方法

Info

Publication number
JPS59147414A
JPS59147414A JP58021282A JP2128283A JPS59147414A JP S59147414 A JPS59147414 A JP S59147414A JP 58021282 A JP58021282 A JP 58021282A JP 2128283 A JP2128283 A JP 2128283A JP S59147414 A JPS59147414 A JP S59147414A
Authority
JP
Japan
Prior art keywords
compound
cobalt
iron oxide
aqueous solution
oxide 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.)
Granted
Application number
JP58021282A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0425687B2 (enrdf_load_stackoverflow
Inventor
Kazuo Nakada
中田 和男
Masatake Maruo
丸尾 正剛
Kiyoshi Asano
清 浅野
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.)
Ishihara Sangyo Kaisha Ltd
Original Assignee
Ishihara Sangyo Kaisha 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 Ishihara Sangyo Kaisha Ltd filed Critical Ishihara Sangyo Kaisha Ltd
Priority to JP58021282A priority Critical patent/JPS59147414A/ja
Priority to AU13089/83A priority patent/AU558199B2/en
Priority to KR1019830001384A priority patent/KR880001711B1/ko
Priority to DE19833312243 priority patent/DE3312243A1/de
Priority to CA000425211A priority patent/CA1257961A/en
Priority to US06/482,225 priority patent/US4539261A/en
Priority to GB08309296A priority patent/GB2127797B/en
Priority to FR8305623A priority patent/FR2533206B1/fr
Priority to NL8301209A priority patent/NL191291C/xx
Publication of JPS59147414A publication Critical patent/JPS59147414A/ja
Publication of JPH0425687B2 publication Critical patent/JPH0425687B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70626Record 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
    • G11B5/70642Record 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
    • G11B5/70652Record 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
    • G11B5/70668Record 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
    • G11B5/70673Record 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)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
JP58021282A 1982-09-16 1983-02-10 コバルト含有磁性酸化鉄粉末の製造方法 Granted JPS59147414A (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP58021282A JPS59147414A (ja) 1983-02-10 1983-02-10 コバルト含有磁性酸化鉄粉末の製造方法
AU13089/83A AU558199B2 (en) 1982-09-16 1983-03-31 Production of magnetic powder
KR1019830001384A KR880001711B1 (ko) 1982-09-16 1983-04-04 자성분말의 제조방법
DE19833312243 DE3312243A1 (de) 1982-09-16 1983-04-05 Verfahren zur herstellung eines magnetpulvers
CA000425211A CA1257961A (en) 1982-09-16 1983-04-05 Process for producing magnetic powder
US06/482,225 US4539261A (en) 1982-09-16 1983-04-05 Process for producing magnetic powder and product
GB08309296A GB2127797B (en) 1982-09-16 1983-04-06 Process for producing magnetic powder
FR8305623A FR2533206B1 (fr) 1982-09-16 1983-04-06 Procede de preparation d'une poudre magnetique a base d'oxyde de fer magnetique et produit obtenu
NL8301209A NL191291C (nl) 1982-09-16 1983-04-06 Werkwijze ter bereiding van een magnetisch poeder, alsmede registratiemedium dat een dergelijk poeder bevat.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58021282A JPS59147414A (ja) 1983-02-10 1983-02-10 コバルト含有磁性酸化鉄粉末の製造方法

Publications (2)

Publication Number Publication Date
JPS59147414A true JPS59147414A (ja) 1984-08-23
JPH0425687B2 JPH0425687B2 (enrdf_load_stackoverflow) 1992-05-01

Family

ID=12050776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58021282A Granted JPS59147414A (ja) 1982-09-16 1983-02-10 コバルト含有磁性酸化鉄粉末の製造方法

Country Status (1)

Country Link
JP (1) JPS59147414A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203226A (ja) * 1988-02-10 1989-08-16 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄の製造方法
JPH0283219A (ja) * 1988-09-19 1990-03-23 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄粉末の製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55141712A (en) * 1979-04-23 1980-11-05 Basf Ag Acicular magnetic iron oxide and method for producing same
JPS5818904A (ja) * 1981-07-27 1983-02-03 Ishihara Sangyo Kaisha Ltd コバルト含有磁性酸化鉄の製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55141712A (en) * 1979-04-23 1980-11-05 Basf Ag Acicular magnetic iron oxide and method for producing same
JPS5818904A (ja) * 1981-07-27 1983-02-03 Ishihara Sangyo Kaisha Ltd コバルト含有磁性酸化鉄の製造方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01203226A (ja) * 1988-02-10 1989-08-16 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄の製造方法
JPH0283219A (ja) * 1988-09-19 1990-03-23 Ishihara Sangyo Kaisha Ltd コバルト含有強磁性酸化鉄粉末の製造方法

Also Published As

Publication number Publication date
JPH0425687B2 (enrdf_load_stackoverflow) 1992-05-01

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