GB2096920B - Metallic magnetic medium and process for its production - Google Patents

Metallic magnetic medium and process for its production

Info

Publication number
GB2096920B
GB2096920B GB8204395A GB8204395A GB2096920B GB 2096920 B GB2096920 B GB 2096920B GB 8204395 A GB8204395 A GB 8204395A GB 8204395 A GB8204395 A GB 8204395A GB 2096920 B GB2096920 B GB 2096920B
Authority
GB
United Kingdom
Prior art keywords
production
magnetic medium
metallic magnetic
metallic
medium
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
Application number
GB8204395A
Other versions
GB2096920A (en
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.)
Fujifilm Holdings Corp
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/en
Priority claimed from JP56043388A external-priority patent/JPS57158037A/en
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB2096920A publication Critical patent/GB2096920A/en
Application granted granted Critical
Publication of GB2096920B publication Critical patent/GB2096920B/en
Expired legal-status Critical Current

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
GB8204395A 1981-02-19 1982-02-15 Metallic magnetic medium and process for its production Expired GB2096920B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (2)

Publication Number Publication Date
GB2096920A GB2096920A (en) 1982-10-27
GB2096920B true GB2096920B (en) 1984-06-06

Family

ID=26360887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8204395A Expired GB2096920B (en) 1981-02-19 1982-02-15 Metallic magnetic medium and process for its production

Country Status (3)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119538A (en) * 1982-12-25 1984-07-10 Tdk Corp Magnetic recording medium
JPS61115237A (en) * 1984-11-12 1986-06-02 Victor Co Of Japan Ltd Magnetic recording medium
US4797303A (en) * 1985-09-04 1989-01-10 Unisys Corp. Surface lubricants for disc record
DE3788275T2 (en) * 1986-08-28 1994-05-19 Unisys Corp Surface lubricants for storage surfaces and methods of reducing their wear.

Also Published As

Publication number Publication date
GB2096920A (en) 1982-10-27
NL8200654A (en) 1982-09-16
NL188251B (en) 1991-12-02
DE3206109A1 (en) 1982-11-04
NL188251C (en) 1994-08-16
DE3206109C2 (en) 1991-03-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970215