BR7204004D0 - Material em lencol revestido tal como fita magnetica registradora - Google Patents

Material em lencol revestido tal como fita magnetica registradora

Info

Publication number
BR7204004D0
BR7204004D0 BR4004/72A BR400472A BR7204004D0 BR 7204004 D0 BR7204004 D0 BR 7204004D0 BR 4004/72 A BR4004/72 A BR 4004/72A BR 400472 A BR400472 A BR 400472A BR 7204004 D0 BR7204004 D0 BR 7204004D0
Authority
BR
Brazil
Prior art keywords
lencol
magnetic tape
material coated
recording magnetic
recording
Prior art date
Application number
BR4004/72A
Other languages
English (en)
Portuguese (pt)
Inventor
R Brekkern
E Evans
G Olson
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 BR7204004D0 publication Critical patent/BR7204004D0/pt

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
    • G11B5/73—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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73931—Two or more layers, at least one layer being polyester
BR4004/72A 1971-06-21 1972-06-20 Material em lencol revestido tal como fita magnetica registradora BR7204004D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15535371A 1971-06-21 1971-06-21

Publications (1)

Publication Number Publication Date
BR7204004D0 true BR7204004D0 (pt) 1973-06-14

Family

ID=22555101

Family Applications (1)

Application Number Title Priority Date Filing Date
BR4004/72A BR7204004D0 (pt) 1971-06-21 1972-06-20 Material em lencol revestido tal como fita magnetica registradora

Country Status (3)

Country Link
BR (1) BR7204004D0 (enrdf_load_stackoverflow)
GB (1) GB1375670A (enrdf_load_stackoverflow)
SU (1) SU568401A3 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1199982B (it) * 1982-03-26 1989-01-05 Anic Spa Lega polimerica termoplastica a base di policarbonato

Also Published As

Publication number Publication date
SU568401A3 (ru) 1977-08-05
GB1375670A (enrdf_load_stackoverflow) 1974-11-27

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