JPH0480473B2 - - Google Patents

Info

Publication number
JPH0480473B2
JPH0480473B2 JP59251776A JP25177684A JPH0480473B2 JP H0480473 B2 JPH0480473 B2 JP H0480473B2 JP 59251776 A JP59251776 A JP 59251776A JP 25177684 A JP25177684 A JP 25177684A JP H0480473 B2 JPH0480473 B2 JP H0480473B2
Authority
JP
Japan
Prior art keywords
connecting groove
metal disc
disk
recording medium
annular body
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.)
Expired - Lifetime
Application number
JP59251776A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61131277A (ja
Inventor
Minoru Fujita
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP25177684A priority Critical patent/JPS61131277A/ja
Publication of JPS61131277A publication Critical patent/JPS61131277A/ja
Publication of JPH0480473B2 publication Critical patent/JPH0480473B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
JP25177684A 1984-11-30 1984-11-30 記録デイスク Granted JPS61131277A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25177684A JPS61131277A (ja) 1984-11-30 1984-11-30 記録デイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25177684A JPS61131277A (ja) 1984-11-30 1984-11-30 記録デイスク

Publications (2)

Publication Number Publication Date
JPS61131277A JPS61131277A (ja) 1986-06-18
JPH0480473B2 true JPH0480473B2 (OSRAM) 1992-12-18

Family

ID=17227749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25177684A Granted JPS61131277A (ja) 1984-11-30 1984-11-30 記録デイスク

Country Status (1)

Country Link
JP (1) JPS61131277A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62208480A (ja) * 1986-03-07 1987-09-12 Hitachi Maxell Ltd デイスクカ−トリツジ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643909Y2 (ja) * 1982-11-01 1994-11-14 ソニー株式会社 磁気ディスク保護装置

Also Published As

Publication number Publication date
JPS61131277A (ja) 1986-06-18

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