JPS57158036A - Magnetic storage body - Google Patents

Magnetic storage body

Info

Publication number
JPS57158036A
JPS57158036A JP56042968A JP4296881A JPS57158036A JP S57158036 A JPS57158036 A JP S57158036A JP 56042968 A JP56042968 A JP 56042968A JP 4296881 A JP4296881 A JP 4296881A JP S57158036 A JPS57158036 A JP S57158036A
Authority
JP
Japan
Prior art keywords
alloy
antistatic agent
protective film
coating
layer
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.)
Granted
Application number
JP56042968A
Other languages
Japanese (ja)
Other versions
JPH0419609B2 (en
Inventor
Masahiro Yanagisawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56042968A priority Critical patent/JPS57158036A/en
Publication of JPS57158036A publication Critical patent/JPS57158036A/en
Publication of JPH0419609B2 publication Critical patent/JPH0419609B2/ja
Granted 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

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To prevent a head and a medium from breaking down by coating a specularly polished base material layer on a substrate with a metallic magnetic medium layer, and coating a proteective film which contains an antistatic agent over it directly or with a nonmagnetic alloy layer interposed. CONSTITUTION:A substrate 1 is obtained by mechanically working titanium or aluminum alloy, and a base material layer 2 is plated with Ni-P alloy, etc., and polished mechanically. On it, a metallic magnetic medium layer 3 is formed of alloy containing Co, Ni or Fe by plating, vapor dposition, or sputtering. A protective film 4 is formed by coating, vapor-depositing or sputtering a silicic acid polymer, glass or other silicates, nonmagnetic metal such as Rh and Cr or its alloy, or oxide of alloy of Al, Co and Ni. An antistatic agent is added to the protective film by dissolving a prescribed amount of the desired antistatic agent in a solution for protective film formation, or by dipping a magnetic storage body coated with the protective film in a solution of the antistatic agent. The antistatic agent uses a cationic or anionic surface active agent.
JP56042968A 1981-03-24 1981-03-24 Magnetic storage body Granted JPS57158036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042968A JPS57158036A (en) 1981-03-24 1981-03-24 Magnetic storage body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042968A JPS57158036A (en) 1981-03-24 1981-03-24 Magnetic storage body

Publications (2)

Publication Number Publication Date
JPS57158036A true JPS57158036A (en) 1982-09-29
JPH0419609B2 JPH0419609B2 (en) 1992-03-31

Family

ID=12650831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042968A Granted JPS57158036A (en) 1981-03-24 1981-03-24 Magnetic storage body

Country Status (1)

Country Link
JP (1) JPS57158036A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961107A (en) * 1982-09-30 1984-04-07 Nec Corp Magnetic memory body
JPS5961106A (en) * 1982-09-30 1984-04-07 Nec Corp Magnetic memory body
JPS5988806A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPS5988805A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPS5988807A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPS59116925A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPS59116924A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPS59116923A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPS61137221A (en) * 1984-12-06 1986-06-24 Mitsubishi Electric Corp Magnetic disk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442107A (en) * 1977-08-02 1979-04-03 Nec Corp Magnetic storage medium
JPS54143114A (en) * 1978-04-27 1979-11-08 Matsushita Electric Ind Co Ltd Magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442107A (en) * 1977-08-02 1979-04-03 Nec Corp Magnetic storage medium
JPS54143114A (en) * 1978-04-27 1979-11-08 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572727B2 (en) * 1982-09-30 1993-10-12 Nippon Electric Co
JPS5961106A (en) * 1982-09-30 1984-04-07 Nec Corp Magnetic memory body
JPS5961107A (en) * 1982-09-30 1984-04-07 Nec Corp Magnetic memory body
JPS5988806A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPS5988805A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPS5988807A (en) * 1982-11-12 1984-05-22 Nec Corp Magnetic storage body
JPH0580804B2 (en) * 1982-11-12 1993-11-10 Nippon Electric Co
JPH0580803B2 (en) * 1982-11-12 1993-11-10 Nippon Electric Co
JPH0580805B2 (en) * 1982-11-12 1993-11-10 Nippon Electric Co
JPS59116924A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPH0556006B2 (en) * 1982-12-22 1993-08-18 Nippon Electric Co
JPH0556007B2 (en) * 1982-12-22 1993-08-18 Nippon Electric Co
JPS59116923A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPS59116925A (en) * 1982-12-22 1984-07-06 Nec Corp Magnetic storage medium
JPS61137221A (en) * 1984-12-06 1986-06-24 Mitsubishi Electric Corp Magnetic disk

Also Published As

Publication number Publication date
JPH0419609B2 (en) 1992-03-31

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