KR870004409A - Magnetic disk and its manufacturing method - Google Patents

Magnetic disk and its manufacturing method

Info

Publication number
KR870004409A
KR870004409A KR1019860008308A KR860008308A KR870004409A KR 870004409 A KR870004409 A KR 870004409A KR 1019860008308 A KR1019860008308 A KR 1019860008308A KR 860008308 A KR860008308 A KR 860008308A KR 870004409 A KR870004409 A KR 870004409A
Authority
KR
South Korea
Prior art keywords
manufacturing
magnetic disk
disk
magnetic
Prior art date
Application number
KR1019860008308A
Other languages
Korean (ko)
Other versions
KR910004633B1 (en
Inventor
이사오 사까구찌
다쓰오 가와이데
마사아끼 이마무라
요시끼 가또오
후지오 마에다
마사아끼 하야시
Original Assignee
가부시기가이샤 히다찌세이사꾸쇼
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 가부시기가이샤 히다찌세이사꾸쇼 filed Critical 가부시기가이샤 히다찌세이사꾸쇼
Publication of KR870004409A publication Critical patent/KR870004409A/en
Application granted granted Critical
Publication of KR910004633B1 publication Critical patent/KR910004633B1/en

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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer
KR1019860008308A 1985-10-04 1986-10-04 Magnetic disk and its manufacturing method KR910004633B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60220043A JPS6280827A (en) 1985-10-04 1985-10-04 Magnetic disc
JP85-220043 1985-10-04

Publications (2)

Publication Number Publication Date
KR870004409A true KR870004409A (en) 1987-05-09
KR910004633B1 KR910004633B1 (en) 1991-07-08

Family

ID=16745028

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860008308A KR910004633B1 (en) 1985-10-04 1986-10-04 Magnetic disk and its manufacturing method

Country Status (4)

Country Link
JP (1) JPS6280827A (en)
KR (1) KR910004633B1 (en)
CN (1) CN86106834A (en)
DE (1) DE3633590A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447606A (en) * 1977-09-22 1979-04-14 Hitachi Ltd Production of magnetic recording media
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk

Also Published As

Publication number Publication date
DE3633590C2 (en) 1991-02-14
CN86106834A (en) 1987-04-08
DE3633590A1 (en) 1987-04-16
JPH0518175B2 (en) 1993-03-11
JPS6280827A (en) 1987-04-14
KR910004633B1 (en) 1991-07-08

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20060704

Year of fee payment: 16

EXPY Expiration of term