JPS6198223U - - Google Patents

Info

Publication number
JPS6198223U
JPS6198223U JP18036484U JP18036484U JPS6198223U JP S6198223 U JPS6198223 U JP S6198223U JP 18036484 U JP18036484 U JP 18036484U JP 18036484 U JP18036484 U JP 18036484U JP S6198223 U JPS6198223 U JP S6198223U
Authority
JP
Japan
Prior art keywords
inner periphery
angle
disk substrate
magnetic disk
recording 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.)
Pending
Application number
JP18036484U
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 JP18036484U priority Critical patent/JPS6198223U/ja
Publication of JPS6198223U publication Critical patent/JPS6198223U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は従来の板厚2mmの磁気デイスク基板の
内周側の部分断面図、第2図は従来の板厚4mmの
磁気デイスク基板の内周側の部分断面図、第3図
は本考案の一実施例の内周側の部分断面図である
。図においてl,l,lは内周の磁気記録
層形成面と90°を成す面の幅である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 内周の面取り角度を45°以上85°以下とし
    、内周の磁気記録層形成面と90°を成す面の幅
    を小さくすることを特徴とする磁気デイスク基板
JP18036484U 1984-11-28 1984-11-28 Pending JPS6198223U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18036484U JPS6198223U (ja) 1984-11-28 1984-11-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18036484U JPS6198223U (ja) 1984-11-28 1984-11-28

Publications (1)

Publication Number Publication Date
JPS6198223U true JPS6198223U (ja) 1986-06-24

Family

ID=30737921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18036484U Pending JPS6198223U (ja) 1984-11-28 1984-11-28

Country Status (1)

Country Link
JP (1) JPS6198223U (ja)

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