JPS6476518A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6476518A
JPS6476518A JP23261687A JP23261687A JPS6476518A JP S6476518 A JPS6476518 A JP S6476518A JP 23261687 A JP23261687 A JP 23261687A JP 23261687 A JP23261687 A JP 23261687A JP S6476518 A JPS6476518 A JP S6476518A
Authority
JP
Japan
Prior art keywords
metallic film
ferromagnetic metallic
tungsten
protective layer
recording medium
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
JP23261687A
Other languages
Japanese (ja)
Inventor
Tetsuo Mizumura
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP23261687A priority Critical patent/JPS6476518A/en
Publication of JPS6476518A publication Critical patent/JPS6476518A/en
Pending legal-status Critical Current

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  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To protect the surface of a ferromagnetic metallic film against corrosive environment and to prevent the corrosion thereof by forming a protective layer of a metal contg. either of tungsten or molybdenum on the surface of the ferromagnetic metallic film. CONSTITUTION:The protective layer 3 contg. at least either of the tungsten or molybdenum is formed on the surface of the ferromagnetic metallic film 2 of a magnetic recording medium formed with the ferromagnetic metallic film 2 essentially consisting of Co on a nonmagnetic substrate 1. The protective layer 3 consisting of the acid salt, etc., of the cobalt and tungsten on the surface of the ferromagnetic metallic film 2 is chemically stable as a salt and is structurally dense. The ferromagnetic metallic film 2 is thereby effectively protected against the corrosion.
JP23261687A 1987-09-18 1987-09-18 Magnetic recording medium Pending JPS6476518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23261687A JPS6476518A (en) 1987-09-18 1987-09-18 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23261687A JPS6476518A (en) 1987-09-18 1987-09-18 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6476518A true JPS6476518A (en) 1989-03-22

Family

ID=16942125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23261687A Pending JPS6476518A (en) 1987-09-18 1987-09-18 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6476518A (en)

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Yazawa et al. Thin Film Ferromagnetic Layer for Magnetic Recording Media