JPH033361B2 - - Google Patents

Info

Publication number
JPH033361B2
JPH033361B2 JP56153753A JP15375381A JPH033361B2 JP H033361 B2 JPH033361 B2 JP H033361B2 JP 56153753 A JP56153753 A JP 56153753A JP 15375381 A JP15375381 A JP 15375381A JP H033361 B2 JPH033361 B2 JP H033361B2
Authority
JP
Japan
Prior art keywords
magnetic
temperature
powder
precipitate
hexagonal ferrite
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
JP56153753A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5856302A (ja
Inventor
Takashi Anami
Tatsumi Maeda
Tadashi Ido
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
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP56153753A priority Critical patent/JPS5856302A/ja
Publication of JPS5856302A publication Critical patent/JPS5856302A/ja
Publication of JPH033361B2 publication Critical patent/JPH033361B2/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

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
JP56153753A 1981-09-30 1981-09-30 高密度磁気記録用磁性粉の製造方法 Granted JPS5856302A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56153753A JPS5856302A (ja) 1981-09-30 1981-09-30 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
JP56153753A JPS5856302A (ja) 1981-09-30 1981-09-30 高密度磁気記録用磁性粉の製造方法

Publications (2)

Publication Number Publication Date
JPS5856302A JPS5856302A (ja) 1983-04-04
JPH033361B2 true JPH033361B2 (en, 2012) 1991-01-18

Family

ID=15569362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56153753A Granted JPS5856302A (ja) 1981-09-30 1981-09-30 高密度磁気記録用磁性粉の製造方法

Country Status (1)

Country Link
JP (1) JPS5856302A (en, 2012)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207605A (ja) * 1983-05-11 1984-11-24 Tohoku Metal Ind Ltd 磁気記録用粉末の製造方法
JPS6069822A (ja) * 1983-08-19 1985-04-20 Toshiba Corp 磁気記録媒体
JPS6055516A (ja) * 1983-09-06 1985-03-30 Toshiba Corp 磁気記録媒体
JPS6095902A (ja) * 1983-10-31 1985-05-29 Toda Kogyo Corp 磁気記録用板状Ｂａフエライト微粒子粉末の製造法
JPH061546B2 (ja) * 1985-03-26 1994-01-05 株式会社東芝 磁気記録媒体用強磁性粉末及びその製造方法
JPS62176920A (ja) * 1986-01-31 1987-08-03 Sony Corp バリウムフエライト粉末の製法
JPH0761874B2 (ja) * 1986-09-12 1995-07-05 戸田工業株式会社 磁気記録用板状Ｂａフエライト微粒子粉末及びその製造法
US5585032A (en) * 1987-04-21 1996-12-17 Ishihara Sangyo Kaisha, Ltd. Ferromagnetic fine powder for magnetic recording
US5378384A (en) * 1991-09-19 1995-01-03 Minnesota Mining And Manufacturing Company Process of making hexagonal magnetic ferrite pigment for high density magnetic recording applications
US5616414A (en) * 1993-12-28 1997-04-01 Imation Corp. Hexagonal magnetic ferrite pigment for high density magnetic recording applications

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050323B2 (ja) * 1978-12-22 1985-11-08 株式会社東芝 高密度記録体

Also Published As

Publication number Publication date
JPS5856302A (ja) 1983-04-04

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