JPS57198606A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57198606A
JPS57198606A JP56082882A JP8288281A JPS57198606A JP S57198606 A JPS57198606 A JP S57198606A JP 56082882 A JP56082882 A JP 56082882A JP 8288281 A JP8288281 A JP 8288281A JP S57198606 A JPS57198606 A JP S57198606A
Authority
JP
Japan
Prior art keywords
magnetic powder
powder
recording medium
treated
magnetic recording
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.)
Pending
Application number
JP56082882A
Other languages
Japanese (ja)
Inventor
Takeo Ito
Akio Ishizawa
Mitsuo Yaegashi
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 JP56082882A priority Critical patent/JPS57198606A/en
Publication of JPS57198606A publication Critical patent/JPS57198606A/en
Pending 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
    • G11B5/712—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 surface treatment or coating of magnetic particles

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain very excellent dispersibility by employing magnetic powder surface-treated with Al and Zr compounds having organic groups. CONSTITUTION:Magnetic powder is surface-treated with Al or Zr compound having organic groups, thereby obtaining the magnetic powder to which Al or Zr compound adheres. It is preferable to employ hexagonal ferrite powder represented by the general formula AFe12O19, where A represents at least one element selected from the group consisting of Ba, Sr, Ca and Pb, as the magnetic powder. The magnetic powder thus obtained has very excellent dispersibility and excellent wear resistance due to rigid adherence to the resin component. Further, this powder has strong adherence to a base and is difficult to peel off from the base.
JP56082882A 1981-05-30 1981-05-30 Magnetic recording medium Pending JPS57198606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56082882A JPS57198606A (en) 1981-05-30 1981-05-30 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082882A JPS57198606A (en) 1981-05-30 1981-05-30 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57198606A true JPS57198606A (en) 1982-12-06

Family

ID=13786640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082882A Pending JPS57198606A (en) 1981-05-30 1981-05-30 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57198606A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147539A (en) * 1982-02-26 1983-09-02 Toshiba Corp Amorphous alloy for magnetic head
EP0136631A2 (en) * 1983-09-30 1985-04-10 International Business Machines Corporation A process for forming a magnetic record member and a magnetic record member
JPS63306526A (en) * 1987-06-06 1988-12-14 Taiyo Yuden Co Ltd Magnetic recording medium and its production
WO1990008380A1 (en) * 1989-01-19 1990-07-26 Konica Corporation Magnetic recording medium
JPH03150721A (en) * 1990-09-21 1991-06-27 Konica Corp Magnetic recording medium
US5514463A (en) * 1991-01-08 1996-05-07 Tdk Corporation Magnetic recording medium

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147539A (en) * 1982-02-26 1983-09-02 Toshiba Corp Amorphous alloy for magnetic head
JPH0360908B2 (en) * 1982-02-26 1991-09-18 Tokyo Shibaura Electric Co
EP0136631A2 (en) * 1983-09-30 1985-04-10 International Business Machines Corporation A process for forming a magnetic record member and a magnetic record member
JPS63306526A (en) * 1987-06-06 1988-12-14 Taiyo Yuden Co Ltd Magnetic recording medium and its production
WO1990008380A1 (en) * 1989-01-19 1990-07-26 Konica Corporation Magnetic recording medium
US5284716A (en) * 1989-01-19 1994-02-08 Konica Corporation Magnetic recording medium
JPH03150721A (en) * 1990-09-21 1991-06-27 Konica Corp Magnetic recording medium
US5514463A (en) * 1991-01-08 1996-05-07 Tdk Corporation Magnetic recording medium

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