JPS61167022U - - Google Patents

Info

Publication number
JPS61167022U
JPS61167022U JP5010485U JP5010485U JPS61167022U JP S61167022 U JPS61167022 U JP S61167022U JP 5010485 U JP5010485 U JP 5010485U JP 5010485 U JP5010485 U JP 5010485U JP S61167022 U JPS61167022 U JP S61167022U
Authority
JP
Japan
Prior art keywords
magnetic recording
protective film
recording medium
film
alumina
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
JP5010485U
Other languages
English (en)
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 filed Critical
Priority to JP5010485U priority Critical patent/JPS61167022U/ja
Publication of JPS61167022U publication Critical patent/JPS61167022U/ja
Pending legal-status Critical Current

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  • Magnetic Record Carriers (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す断面図、第2
図は本考案の他の実施例を示す断面図、第3図は
第2図の実施例における磁化膜およびアルミ膜の
加工説明図、第4図は垂直磁化記録ヘツドの一例
を示す斜視図、第5図は従来の磁気記録媒体の一
例を示す断面図。 符号表1……記録媒体、2……主磁極、2a…
…主磁極材、2b,2c……非磁性ホルダ、3…
…補助磁極、5……基板、6……垂直磁化膜、1
0……保護膜、11……アルミ膜、12……アル
ミナ膜、13,14……蒸着源。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 基材の表面に形成された磁化膜に磁気記録
    ヘツドを接触または近接させた状態で情報の書き
    込み又は読み出しが行われる磁気記録媒体におい
    て、 前記磁化膜の表面にアルミナによる保護膜を設
    けたことを特徴とする表面保護膜を有する磁気記
    録媒体。 (2) 前記保護膜を陽極酸化法により形成するこ
    とを特徴とする実用新案登録請求の範囲第1項に
    記載の表面保護膜を有する磁気記録媒体。
JP5010485U 1985-04-04 1985-04-04 Pending JPS61167022U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5010485U JPS61167022U (ja) 1985-04-04 1985-04-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5010485U JPS61167022U (ja) 1985-04-04 1985-04-04

Publications (1)

Publication Number Publication Date
JPS61167022U true JPS61167022U (ja) 1986-10-16

Family

ID=30567921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5010485U Pending JPS61167022U (ja) 1985-04-04 1985-04-04

Country Status (1)

Country Link
JP (1) JPS61167022U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5265409A (en) * 1975-11-27 1977-05-30 Fujitsu Ltd Preparation for magnetic recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5265409A (en) * 1975-11-27 1977-05-30 Fujitsu Ltd Preparation for magnetic recording medium

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