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JPS5794931A - Magnetic storage body - Google Patents

Magnetic storage body

Info

Publication number
JPS5794931A
JPS5794931A JP55171617A JP17161780A JPS5794931A JP S5794931 A JPS5794931 A JP S5794931A JP 55171617 A JP55171617 A JP 55171617A JP 17161780 A JP17161780 A JP 17161780A JP S5794931 A JPS5794931 A JP S5794931A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic storage
storage body
iron oxide
thin film
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
JP55171617A
Other languages
Japanese (ja)
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 JP55171617A priority Critical patent/JPS5794931A/en
Publication of JPS5794931A publication Critical patent/JPS5794931A/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

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To prevent head crush by using a magnetic iron oxide thin film as a magnetic layer and by providing a protective film on it. CONSTITUTION:A substrate 1 of aluminum alloy, etc., having alumina formed on the surface is coated with a thin film of magnetic iron oxide, such as gamma-Fe2O3 and Fe2O4, as a magnetic medium 2, and on this magnetic medium 2, a tetrahydroxysilane solution is applied and baked to form a protective film made of a silicic acid polymer.
JP55171617A 1980-12-05 1980-12-05 Magnetic storage body Pending JPS5794931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55171617A JPS5794931A (en) 1980-12-05 1980-12-05 Magnetic storage body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55171617A JPS5794931A (en) 1980-12-05 1980-12-05 Magnetic storage body

Publications (1)

Publication Number Publication Date
JPS5794931A true JPS5794931A (en) 1982-06-12

Family

ID=15926486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55171617A Pending JPS5794931A (en) 1980-12-05 1980-12-05 Magnetic storage body

Country Status (1)

Country Link
JP (1) JPS5794931A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220804A (en) * 1975-07-01 1977-02-17 Nec Corp Magnetic memory device and the manufacturing method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5220804A (en) * 1975-07-01 1977-02-17 Nec Corp Magnetic memory device and the manufacturing method

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