CA963321A - Dual-layer magnetic recording tape - Google Patents

Dual-layer magnetic recording tape

Info

Publication number
CA963321A
CA963321A CA135,600A CA135600A CA963321A CA 963321 A CA963321 A CA 963321A CA 135600 A CA135600 A CA 135600A CA 963321 A CA963321 A CA 963321A
Authority
CA
Canada
Prior art keywords
dual
magnetic recording
recording tape
layer magnetic
layer
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
CA135,600A
Other versions
CA135600S (en
Inventor
Kenneth J. Perrington
James K. Knudsen
Peter J. Vogelgesang
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA963321A publication Critical patent/CA963321A/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
    • G11B5/68—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
CA135,600A 1971-02-26 1972-02-25 Dual-layer magnetic recording tape Expired CA963321A (en)

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
CA963321A true CA963321A (en) 1975-02-25

Family

ID=26817106

Family Applications (1)

Application Number Title Priority Date Filing Date
CA135,600A Expired CA963321A (en) 1971-02-26 1972-02-25 Dual-layer magnetic recording tape

Country Status (11)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843815B2 (en) * 1975-10-23 1983-09-29 富士写真フイルム株式会社 Jikiki Loc Tape
JPS5817539A (en) * 1981-07-21 1983-02-01 Sony Corp Magnetic recording medium
NL8220324A (en) * 1981-09-28 1983-08-01 Sony Corp MAGNETIC RECORD MEDIUM.
DE3420466A1 (en) * 1984-06-01 1985-12-05 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING MAGNETOGRAM CARRIERS
JPH0727631B2 (en) * 1987-09-21 1995-03-29 富士写真フイルム株式会社 Magnetic recording medium
JP2581570B2 (en) * 1987-10-19 1997-02-12 富士写真フイルム株式会社 Video magnetic recording media

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
DE2208792B2 (en) 1976-08-19
NL7202051A (en) 1972-08-29
FR2126451B1 (en) 1975-10-24
GB1366192A (en) 1974-09-11
SE382274B (en) 1976-01-19
JPS5228364B1 (en) 1977-07-26
BE779893A (en) 1972-08-25
FR2126451A1 (en) 1972-10-06
DE2208792A1 (en) 1973-03-08
AR192622A1 (en) 1973-02-28
ES399853A1 (en) 1975-09-16
IT948737B (en) 1973-06-11

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