JPS58169902A - 磁気記録用磁性粉の製造方法 - Google Patents

磁気記録用磁性粉の製造方法

Info

Publication number
JPS58169902A
JPS58169902A JP57051399A JP5139982A JPS58169902A JP S58169902 A JPS58169902 A JP S58169902A JP 57051399 A JP57051399 A JP 57051399A JP 5139982 A JP5139982 A JP 5139982A JP S58169902 A JPS58169902 A JP S58169902A
Authority
JP
Japan
Prior art keywords
magnetic
ferrite
powder
magnetic recording
fe2o3
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
JP57051399A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0341964B2 (enrdf_load_stackoverflow
Inventor
Osamu Kubo
修 久保
Tsutomu Nomura
野村　力
Masahiro Fukazawa
深沢　昌弘
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 JP57051399A priority Critical patent/JPS58169902A/ja
Publication of JPS58169902A publication Critical patent/JPS58169902A/ja
Publication of JPH0341964B2 publication Critical patent/JPH0341964B2/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)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP57051399A 1982-03-31 1982-03-31 磁気記録用磁性粉の製造方法 Granted JPS58169902A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57051399A JPS58169902A (ja) 1982-03-31 1982-03-31 磁気記録用磁性粉の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57051399A JPS58169902A (ja) 1982-03-31 1982-03-31 磁気記録用磁性粉の製造方法

Publications (2)

Publication Number Publication Date
JPS58169902A true JPS58169902A (ja) 1983-10-06
JPH0341964B2 JPH0341964B2 (enrdf_load_stackoverflow) 1991-06-25

Family

ID=12885860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57051399A Granted JPS58169902A (ja) 1982-03-31 1982-03-31 磁気記録用磁性粉の製造方法

Country Status (1)

Country Link
JP (1) JPS58169902A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7132164B2 (en) 2004-06-21 2006-11-07 Fuji Photo Film Co., Ltd. Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125219A (en) * 1980-03-07 1981-10-01 Toshiba Corp Manufacture of fine-particle and hexagonol ferrite
JPS56155022A (en) * 1980-04-24 1981-12-01 Toshiba Corp Preparation of magnetic powder
JPS56169128A (en) * 1980-05-27 1981-12-25 Toshiba Corp Manufacture of magnetic powder for magnetic recording

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125219A (en) * 1980-03-07 1981-10-01 Toshiba Corp Manufacture of fine-particle and hexagonol ferrite
JPS56155022A (en) * 1980-04-24 1981-12-01 Toshiba Corp Preparation of magnetic powder
JPS56169128A (en) * 1980-05-27 1981-12-25 Toshiba Corp Manufacture of magnetic powder for magnetic recording

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7132164B2 (en) 2004-06-21 2006-11-07 Fuji Photo Film Co., Ltd. Hexagonal ferrite magnetic powder, method for producing the same and magnetic recording medium

Also Published As

Publication number Publication date
JPH0341964B2 (enrdf_load_stackoverflow) 1991-06-25

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