JPS5842203A - 高密度磁気記録用磁性粉の製造方法 - Google Patents

高密度磁気記録用磁性粉の製造方法

Info

Publication number
JPS5842203A
JPS5842203A JP56139663A JP13966381A JPS5842203A JP S5842203 A JPS5842203 A JP S5842203A JP 56139663 A JP56139663 A JP 56139663A JP 13966381 A JP13966381 A JP 13966381A JP S5842203 A JPS5842203 A JP S5842203A
Authority
JP
Japan
Prior art keywords
less
particles
amorphous
magnetic recording
temperature
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
JP56139663A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0312442B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Osamu Kubo
修 久保
Tsutomu Nomura
野村　力
Masahiro Fukazawa
深沢　昌広
Tadashi Ido
井戸　忠
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56139663A priority Critical patent/JPS5842203A/ja
Publication of JPS5842203A publication Critical patent/JPS5842203A/ja
Publication of JPH0312442B2 publication Critical patent/JPH0312442B2/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
    • G11B5/70678—Ferrites

Landscapes

  • Compounds Of Iron (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP56139663A 1981-09-07 1981-09-07 高密度磁気記録用磁性粉の製造方法 Granted JPS5842203A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56139663A JPS5842203A (ja) 1981-09-07 1981-09-07 高密度磁気記録用磁性粉の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56139663A JPS5842203A (ja) 1981-09-07 1981-09-07 高密度磁気記録用磁性粉の製造方法

Publications (2)

Publication Number Publication Date
JPS5842203A true JPS5842203A (ja) 1983-03-11
JPH0312442B2 JPH0312442B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-02-20

Family

ID=15250514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56139663A Granted JPS5842203A (ja) 1981-09-07 1981-09-07 高密度磁気記録用磁性粉の製造方法

Country Status (1)

Country Link
JP (1) JPS5842203A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151340A (ja) * 1983-02-16 1984-08-29 Fuji Photo Film Co Ltd 磁気記録用フエライト磁性粉の製造法
JPS59207605A (ja) * 1983-05-11 1984-11-24 Tohoku Metal Ind Ltd 磁気記録用粉末の製造方法
JPS6065728A (ja) * 1983-09-19 1985-04-15 Toshiba Corp 磁性粉の製造方法
JPS6077129A (ja) * 1983-09-30 1985-05-01 Toshiba Corp バリウムフエライト磁性粉
JPS62216920A (ja) * 1986-03-14 1987-09-24 Dowa Mining Co Ltd マグネトプランバイト型フエライト粉末およびその製造方法
JP2005340690A (ja) * 2004-05-31 2005-12-08 Asahi Techno Glass Corp 六方晶フェライト磁性粉末およびその製造方法
JP2006005300A (ja) * 2004-06-21 2006-01-05 Fuji Photo Film Co Ltd 六方晶フェライト磁性粉末、その製造方法および磁気記録媒体

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151340A (ja) * 1983-02-16 1984-08-29 Fuji Photo Film Co Ltd 磁気記録用フエライト磁性粉の製造法
JPS59207605A (ja) * 1983-05-11 1984-11-24 Tohoku Metal Ind Ltd 磁気記録用粉末の製造方法
JPS6065728A (ja) * 1983-09-19 1985-04-15 Toshiba Corp 磁性粉の製造方法
JPS6077129A (ja) * 1983-09-30 1985-05-01 Toshiba Corp バリウムフエライト磁性粉
JPS62216920A (ja) * 1986-03-14 1987-09-24 Dowa Mining Co Ltd マグネトプランバイト型フエライト粉末およびその製造方法
JP2005340690A (ja) * 2004-05-31 2005-12-08 Asahi Techno Glass Corp 六方晶フェライト磁性粉末およびその製造方法
JP2006005300A (ja) * 2004-06-21 2006-01-05 Fuji Photo Film Co Ltd 六方晶フェライト磁性粉末、その製造方法および磁気記録媒体
US7381482B2 (en) 2004-06-21 2008-06-03 Asahi Techno Glass Corporation Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium

Also Published As

Publication number Publication date
JPH0312442B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-02-20

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