JPS57130237A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57130237A
JPS57130237A JP1595381A JP1595381A JPS57130237A JP S57130237 A JPS57130237 A JP S57130237A JP 1595381 A JP1595381 A JP 1595381A JP 1595381 A JP1595381 A JP 1595381A JP S57130237 A JPS57130237 A JP S57130237A
Authority
JP
Japan
Prior art keywords
magnetic recording
disk
recording medium
magnetic disk
magnetic
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
JP1595381A
Other languages
Japanese (ja)
Inventor
Yoichi Nakamura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1595381A priority Critical patent/JPS57130237A/en
Publication of JPS57130237A publication Critical patent/JPS57130237A/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Abstract

PURPOSE:To prolong the life of a magnetic recording medium by improving fittingness between a magnetic disk and a disk driver, by constituting the peripheral part of the drive spindle hole of the magnetic disk by using a different material from a part which performs magnetic recording. CONSTITUTION:At the peripheral part of the drive spindle hole of a magnetic disk 2 inserted into a jacket 1, a reinforcing pad 9 made of synthetic resin which has a coefficient of thermal expansion close to that of the disk and enough strength is provided.
JP1595381A 1981-02-05 1981-02-05 Magnetic recording medium Pending JPS57130237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1595381A JPS57130237A (en) 1981-02-05 1981-02-05 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1595381A JPS57130237A (en) 1981-02-05 1981-02-05 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57130237A true JPS57130237A (en) 1982-08-12

Family

ID=11903108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1595381A Pending JPS57130237A (en) 1981-02-05 1981-02-05 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57130237A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111217A2 (en) * 1982-11-26 1984-06-20 Tabor Corporation Apparatus for disk memory
US4654733A (en) * 1984-01-10 1987-03-31 Kabushiki Kaisha Toshiba Floppy disc chucking device
JPS62121972A (en) * 1985-11-22 1987-06-03 Hoya Corp Magnetic disk device
JPS62129986A (en) * 1985-11-30 1987-06-12 Hoya Corp Magnetic disk device
US4675768A (en) * 1983-03-29 1987-06-23 Fuji Photo Film Co., Ltd. Flexible magnetic disk having an embossed circular hole
US4843512A (en) * 1987-08-28 1989-06-27 Minnesota Mining And Manufacturing Company Recording disk centering hub

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111217A2 (en) * 1982-11-26 1984-06-20 Tabor Corporation Apparatus for disk memory
EP0111217A3 (en) * 1982-11-26 1984-10-17 Tabor Corporation Apparatus for disk memory
US4675768A (en) * 1983-03-29 1987-06-23 Fuji Photo Film Co., Ltd. Flexible magnetic disk having an embossed circular hole
US4654733A (en) * 1984-01-10 1987-03-31 Kabushiki Kaisha Toshiba Floppy disc chucking device
JPS62121972A (en) * 1985-11-22 1987-06-03 Hoya Corp Magnetic disk device
JPS62129986A (en) * 1985-11-30 1987-06-12 Hoya Corp Magnetic disk device
US4843512A (en) * 1987-08-28 1989-06-27 Minnesota Mining And Manufacturing Company Recording disk centering hub

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