JPS57127925A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57127925A
JPS57127925A JP56013512A JP1351281A JPS57127925A JP S57127925 A JPS57127925 A JP S57127925A JP 56013512 A JP56013512 A JP 56013512A JP 1351281 A JP1351281 A JP 1351281A JP S57127925 A JPS57127925 A JP S57127925A
Authority
JP
Japan
Prior art keywords
base
recording medium
magnetic recording
crossed
angle
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
JP56013512A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Fukumoto
Masahiro Hotta
Yoji Kono
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP56013512A priority Critical patent/JPS57127925A/en
Publication of JPS57127925A publication Critical patent/JPS57127925A/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

Abstract

PURPOSE:To improve the initial magnetizing characteristics and to reduce the variance in reproduced output, by using a metallic magnetic thin film having at least two layers which have easy magnetizing axis with different directions to be crossed at a specific angle. CONSTITUTION:At least, two layers of ferromagnetic metal thin films 2, 3 are provided on a base 1, and easy magnetization axis lines 4, 5 drawn on the base of each layer are crossed at 30-70 deg. angle theta, by clipping a straight line 6 coincident with the lengthwise direction of the base. Either of easy magnetizing axis of each layer has >=50 deg. angle to the normal of the base member. Further, in manufacturing this magnetic recording medium, it is preferable to perform by a high-vaccum ion plating method.
JP56013512A 1981-01-30 1981-01-30 Magnetic recording medium Pending JPS57127925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56013512A JPS57127925A (en) 1981-01-30 1981-01-30 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56013512A JPS57127925A (en) 1981-01-30 1981-01-30 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57127925A true JPS57127925A (en) 1982-08-09

Family

ID=11835193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56013512A Pending JPS57127925A (en) 1981-01-30 1981-01-30 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57127925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191134A (en) * 1983-04-14 1984-10-30 Nec Corp Magnetic storage body and its manufacture
EP0498421A2 (en) * 1991-02-07 1992-08-12 Canon Kabushiki Kaisha Magnetic recording and reproducing methods as well as magnetic recording and reproducing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256510A (en) * 1975-11-05 1977-05-10 Mitsubishi Heavy Ind Ltd Magnetic recording material
JPS5418708A (en) * 1977-07-13 1979-02-13 Fuji Photo Film Co Ltd Production of magnetic recording media

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5256510A (en) * 1975-11-05 1977-05-10 Mitsubishi Heavy Ind Ltd Magnetic recording material
JPS5418708A (en) * 1977-07-13 1979-02-13 Fuji Photo Film Co Ltd Production of magnetic recording media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191134A (en) * 1983-04-14 1984-10-30 Nec Corp Magnetic storage body and its manufacture
EP0498421A2 (en) * 1991-02-07 1992-08-12 Canon Kabushiki Kaisha Magnetic recording and reproducing methods as well as magnetic recording and reproducing apparatus

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