JPS57117122A - Magnetic recording body - Google Patents

Magnetic recording body

Info

Publication number
JPS57117122A
JPS57117122A JP56000735A JP73581A JPS57117122A JP S57117122 A JPS57117122 A JP S57117122A JP 56000735 A JP56000735 A JP 56000735A JP 73581 A JP73581 A JP 73581A JP S57117122 A JPS57117122 A JP S57117122A
Authority
JP
Japan
Prior art keywords
thin film
thickness
film layer
support base
frequency characteristics
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
JP56000735A
Other languages
Japanese (ja)
Inventor
Takeshi Matsuo
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 JP56000735A priority Critical patent/JPS57117122A/en
Publication of JPS57117122A publication Critical patent/JPS57117122A/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
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
    • G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer

Landscapes

  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To obtain a recording medium with high vertical orientation rate and excellent in reproduction output frequency characteristics, by providing a Co-Cr system ferromagnetic metallic film layer via a thin film layer having a specific thickness or lower of isotropic polycrystal or amorphous soft magnetic metal, on a support base. CONSTITUTION:On the surface of a support base made of polyimide film or the like, 80% N-20% Fe isotropic polycrystal resistive magnetic thin film is formed or amorphous soft magnetic metallic thin film is formed in <=0.1mu thickness. On the thin film layer, Co-Cr ferromagnetic alloy film is formed in 1,500-5,000Angstrom thickness by a sputtering method. Thus, a magnetic tape having high vertical orientation rate, excellent saturated magnetizing amount, coercive force and excelent reproduction output frequency characteristics for high density recording, less film curl and good running peroperty can be obtained.
JP56000735A 1981-01-08 1981-01-08 Magnetic recording body Pending JPS57117122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56000735A JPS57117122A (en) 1981-01-08 1981-01-08 Magnetic recording body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56000735A JPS57117122A (en) 1981-01-08 1981-01-08 Magnetic recording body

Publications (1)

Publication Number Publication Date
JPS57117122A true JPS57117122A (en) 1982-07-21

Family

ID=11481977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56000735A Pending JPS57117122A (en) 1981-01-08 1981-01-08 Magnetic recording body

Country Status (1)

Country Link
JP (1) JPS57117122A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6063710A (en) * 1983-09-19 1985-04-12 Hitachi Ltd Magnetic recording medium
JPS60117413A (en) * 1983-11-29 1985-06-24 Tdk Corp Magnetic recording medium
EP0309202A2 (en) * 1987-09-21 1989-03-29 Hitachi Maxell Ltd. Magnetic recording medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6063710A (en) * 1983-09-19 1985-04-12 Hitachi Ltd Magnetic recording medium
JPH0587888B2 (en) * 1983-09-19 1993-12-20 Hitachi Seisakusho Kk
JPS60117413A (en) * 1983-11-29 1985-06-24 Tdk Corp Magnetic recording medium
JPH0533461B2 (en) * 1983-11-29 1993-05-19 Tdk Electronics Co Ltd
EP0309202A2 (en) * 1987-09-21 1989-03-29 Hitachi Maxell Ltd. Magnetic recording medium
US5543221A (en) * 1987-09-21 1996-08-06 Hitachi Maxell, Ltd. Magnetic recording medium

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