JPS57120227A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57120227A
JPS57120227A JP56005461A JP546181A JPS57120227A JP S57120227 A JPS57120227 A JP S57120227A JP 56005461 A JP56005461 A JP 56005461A JP 546181 A JP546181 A JP 546181A JP S57120227 A JPS57120227 A JP S57120227A
Authority
JP
Japan
Prior art keywords
base
layer
metal
recording medium
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
JP56005461A
Other languages
Japanese (ja)
Inventor
Hisahiro Hanaoka
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP56005461A priority Critical patent/JPS57120227A/en
Publication of JPS57120227A publication Critical patent/JPS57120227A/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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To reduce discharge noise, etc., due to static electricity by providing a metallic magnetic thin film to one side of a base and by forming a conductive layer made of a high polymer compound with a protective layer on the other side. CONSTITUTION:On one side of a base 1, metal, such as Al, is formed into a base layer 2, a metallic magnetic thin film 3 is made of single metal or alloy, and on it, a protective film 4 is provided. The other side of the base, on the other hand, is back-coated with metal, such as Al, with high conductivity to about 300Angstrom thickness by vaccum deposition, ion plating, planting, etc., to form a conductive layer 5 for removing discharge noise, and on the layer 5, a protective film 6 of a high polymer compound is provided.
JP56005461A 1981-01-17 1981-01-17 Magnetic recording medium Pending JPS57120227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56005461A JPS57120227A (en) 1981-01-17 1981-01-17 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56005461A JPS57120227A (en) 1981-01-17 1981-01-17 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57120227A true JPS57120227A (en) 1982-07-27

Family

ID=11611860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56005461A Pending JPS57120227A (en) 1981-01-17 1981-01-17 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57120227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111334A (en) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111334A (en) * 1983-11-18 1985-06-17 Matsushita Electric Ind Co Ltd Magnetic recording medium

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