NL188251C - Magnetisch registratiemedium. - Google Patents

Magnetisch registratiemedium.

Info

Publication number
NL188251C
NL188251C NL8200654A NL8200654A NL188251C NL 188251 C NL188251 C NL 188251C NL 8200654 A NL8200654 A NL 8200654A NL 8200654 A NL8200654 A NL 8200654A NL 188251 C NL188251 C NL 188251C
Authority
NL
Netherlands
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
Prior art date
Application number
NL8200654A
Other languages
English (en)
Dutch (nl)
Other versions
NL8200654A (nl
NL188251B (nl
Original Assignee
Fuji Photo Film Co 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
Priority claimed from JP2352081A external-priority patent/JPS57138033A/ja
Priority claimed from JP56043388A external-priority patent/JPS57158037A/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of NL8200654A publication Critical patent/NL8200654A/nl
Publication of NL188251B publication Critical patent/NL188251B/xx
Application granted granted Critical
Publication of NL188251C publication Critical patent/NL188251C/xx

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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
NL8200654A 1981-02-19 1982-02-18 Magnetisch registratiemedium. NL188251C (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2352081 1981-02-19
JP2352081A JPS57138033A (en) 1981-02-19 1981-02-19 Magnetic recording medium
JP56043388A JPS57158037A (en) 1981-03-24 1981-03-24 Magnetic recording medium and its manufacture
JP4338881 1981-03-24

Publications (3)

Publication Number Publication Date
NL8200654A NL8200654A (nl) 1982-09-16
NL188251B NL188251B (nl) 1991-12-02
NL188251C true NL188251C (nl) 1994-08-16

Family

ID=26360887

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8200654A NL188251C (nl) 1981-02-19 1982-02-18 Magnetisch registratiemedium.

Country Status (3)

Country Link
DE (1) DE3206109A1 (enrdf_load_stackoverflow)
GB (1) GB2096920B (enrdf_load_stackoverflow)
NL (1) NL188251C (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119538A (ja) * 1982-12-25 1984-07-10 Tdk Corp 磁気記録媒体
JPS61115237A (ja) * 1984-11-12 1986-06-02 Victor Co Of Japan Ltd 磁気記録媒体
US4797303A (en) * 1985-09-04 1989-01-10 Unisys Corp. Surface lubricants for disc record
EP0279843B1 (en) * 1986-08-28 1993-11-24 Unisys Corporation Surface lubricants for recording surface and method of reducing their depletion

Also Published As

Publication number Publication date
GB2096920B (en) 1984-06-06
DE3206109C2 (enrdf_load_stackoverflow) 1991-03-14
GB2096920A (en) 1982-10-27
NL8200654A (nl) 1982-09-16
NL188251B (nl) 1991-12-02
DE3206109A1 (de) 1982-11-04

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
R1B Notice of opposition during period of laying open
NP1G Patent granted (not automatically) [patent specification modified]
V1 Lapsed because of non-payment of the annual fee

Effective date: 19970901