BE779893A - Bande a deux couches pour l'enregistrement - Google Patents

Bande a deux couches pour l'enregistrement

Info

Publication number
BE779893A
BE779893A BE779893A BE779893A BE779893A BE 779893 A BE779893 A BE 779893A BE 779893 A BE779893 A BE 779893A BE 779893 A BE779893 A BE 779893A BE 779893 A BE779893 A BE 779893A
Authority
BE
Belgium
Prior art keywords
recording
layer tape
tape
layer
Prior art date
Application number
BE779893A
Other languages
English (en)
French (fr)
Inventor
K J Perrington
P J Vogelgesang
J K Knudsen
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of BE779893A publication Critical patent/BE779893A/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
    • G11B5/68—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
    • G11B5/716—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 two or more magnetic layers
BE779893A 1971-02-26 1972-02-25 Bande a deux couches pour l'enregistrement BE779893A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11919071A 1971-02-26 1971-02-26
US17411371A 1971-08-23 1971-08-23

Publications (1)

Publication Number Publication Date
BE779893A true BE779893A (fr) 1972-08-25

Family

ID=26817106

Family Applications (1)

Application Number Title Priority Date Filing Date
BE779893A BE779893A (fr) 1971-02-26 1972-02-25 Bande a deux couches pour l'enregistrement

Country Status (11)

Country Link
JP (1) JPS5228364B1 (pm)
AR (1) AR192622A1 (pm)
BE (1) BE779893A (pm)
CA (1) CA963321A (pm)
DE (1) DE2208792B2 (pm)
ES (1) ES399853A1 (pm)
FR (1) FR2126451B1 (pm)
GB (1) GB1366192A (pm)
IT (1) IT948737B (pm)
NL (1) NL7202051A (pm)
SE (1) SE382274B (pm)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843815B2 (ja) * 1975-10-23 1983-09-29 富士写真フイルム株式会社 ジキキロクテ−プ
JPS5817539A (ja) * 1981-07-21 1983-02-01 Sony Corp 磁気記録媒体
GB2118070B (en) * 1981-09-28 1985-08-14 Sony Corp Magnetic recording medium
DE3420466A1 (de) * 1984-06-01 1985-12-05 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von magnetogrammtraegern
JPH0727631B2 (ja) * 1987-09-21 1995-03-29 富士写真フイルム株式会社 磁気記録媒体
JP2581570B2 (ja) * 1987-10-19 1997-02-12 富士写真フイルム株式会社 ビデオ用磁気記録媒体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671269A (en) * 1949-11-02 1952-04-30 Brush Dev Co Improvements in or relating to multi-layer magnetic record members

Also Published As

Publication number Publication date
IT948737B (it) 1973-06-11
SE382274B (sv) 1976-01-19
CA963321A (en) 1975-02-25
DE2208792A1 (de) 1973-03-08
AR192622A1 (es) 1973-02-28
NL7202051A (pm) 1972-08-29
FR2126451A1 (pm) 1972-10-06
DE2208792B2 (de) 1976-08-19
JPS5228364B1 (pm) 1977-07-26
FR2126451B1 (pm) 1975-10-24
GB1366192A (en) 1974-09-11
ES399853A1 (es) 1975-09-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MINNESOTA MINING AND MFG CY

Effective date: 19900228