JPS57138054A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57138054A
JPS57138054A JP56024438A JP2443881A JPS57138054A JP S57138054 A JPS57138054 A JP S57138054A JP 56024438 A JP56024438 A JP 56024438A JP 2443881 A JP2443881 A JP 2443881A JP S57138054 A JPS57138054 A JP S57138054A
Authority
JP
Japan
Prior art keywords
delta
thin film
recording medium
magnetic recording
alphafe2
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
JP56024438A
Other languages
Japanese (ja)
Inventor
Kidai Nochi
Toshiaki Kunieda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56024438A priority Critical patent/JPS57138054A/en
Publication of JPS57138054A publication Critical patent/JPS57138054A/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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/722—Protective coatings, e.g. anti-static or antifriction containing an anticorrosive material

Abstract

PURPOSE:To improve corrosion resistance and abrasion resistnce, by providing this film, 50-300Angstrom in thickness made of alphaFe2-delta O3 (0<=delta<=1) on a ferromagnetic thin film including Co. CONSTITUTION:On a base 2 such as polyethylene telephthalate, a ferromagnetic thin film 1 including Co such as Co, Co-Ni or Co-Cr is evaporated, and a non- magnetic thin film 3 made of alphaFe2-delta O3 (0<=delta<=1), 50-300Angstrom thick is laminated on a surface 11 by evaporating Fe in oxygen atmosphere. Thus, corrosion resistance and abrasion resistance are improved.
JP56024438A 1981-02-20 1981-02-20 Magnetic recording medium Pending JPS57138054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56024438A JPS57138054A (en) 1981-02-20 1981-02-20 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56024438A JPS57138054A (en) 1981-02-20 1981-02-20 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57138054A true JPS57138054A (en) 1982-08-26

Family

ID=12138145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56024438A Pending JPS57138054A (en) 1981-02-20 1981-02-20 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57138054A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489706A (en) * 1977-12-27 1979-07-17 Fujitsu Ltd Protecting film for magnetic recording media

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489706A (en) * 1977-12-27 1979-07-17 Fujitsu Ltd Protecting film for magnetic recording media

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