JPS57158035A - Magnetic storage body - Google Patents

Magnetic storage body

Info

Publication number
JPS57158035A
JPS57158035A JP56042967A JP4296781A JPS57158035A JP S57158035 A JPS57158035 A JP S57158035A JP 56042967 A JP56042967 A JP 56042967A JP 4296781 A JP4296781 A JP 4296781A JP S57158035 A JPS57158035 A JP S57158035A
Authority
JP
Japan
Prior art keywords
layer
antistatic agent
coating
organic compound
substrate
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
JP56042967A
Other languages
Japanese (ja)
Other versions
JPH0440782B2 (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 JP56042967A priority Critical patent/JPS57158035A/en
Publication of JPS57158035A publication Critical patent/JPS57158035A/en
Publication of JPH0440782B2 publication Critical patent/JPH0440782B2/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
    • G11B5/726—Two or more protective coatings
    • G11B5/7262—Inorganic protective coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To prevent a head and a medium from breaking down by coating the surface of a continuous thin film type magnetic recording medium layer with an antistatic agent made of a surface active agent. CONSTITUTION:On a recording medium formed of a base material layer 2 formed on a substrate 1, a metallic magnetic medium layer 3 covering the layer 2, and a protective film 4 further coated on it, an antistatic agent layer 5 is provided. In another way, the antistatic agent layer 5 is formed over a ferrite layer coated on the substrate 1 having an ''Alumite '' coating. The antistatic agent uses metal having wear resistance, e.g. Rh and Cr in addition to an organic compound consisting essentially of a surface active agent. The organic compound uses an anionic, cationic, amphoteric, or nonionic material, and the antistatic agent layer is formed by coating or sputtering. Thus, trouble due to the operation of a contact-stop-start system and a noise due to discharge are prevented.
JP56042967A 1981-03-24 1981-03-24 Magnetic storage body Granted JPS57158035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56042967A JPS57158035A (en) 1981-03-24 1981-03-24 Magnetic storage body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56042967A JPS57158035A (en) 1981-03-24 1981-03-24 Magnetic storage body

Publications (2)

Publication Number Publication Date
JPS57158035A true JPS57158035A (en) 1982-09-29
JPH0440782B2 JPH0440782B2 (en) 1992-07-06

Family

ID=12650804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56042967A Granted JPS57158035A (en) 1981-03-24 1981-03-24 Magnetic storage body

Country Status (1)

Country Link
JP (1) JPS57158035A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038721A (en) * 1983-08-09 1985-02-28 Tdk Corp Magnetic recording medium
JPS61137221A (en) * 1984-12-06 1986-06-24 Mitsubishi Electric Corp Magnetic disk
JPS61242323A (en) * 1985-04-19 1986-10-28 Fuji Electric Co Ltd Magnetic recording medium
JPS61261814A (en) * 1985-05-16 1986-11-19 Fuji Electric Co Ltd Magnetic recording medium
JPS62103839A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium

Citations (1)

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

Patent Citations (1)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6038721A (en) * 1983-08-09 1985-02-28 Tdk Corp Magnetic recording medium
JPS61137221A (en) * 1984-12-06 1986-06-24 Mitsubishi Electric Corp Magnetic disk
JPS61242323A (en) * 1985-04-19 1986-10-28 Fuji Electric Co Ltd Magnetic recording medium
JPS61261814A (en) * 1985-05-16 1986-11-19 Fuji Electric Co Ltd Magnetic recording medium
JPS62103839A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium

Also Published As

Publication number Publication date
JPH0440782B2 (en) 1992-07-06

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