GB1366192A - Dual-layer magnetic recording tape - Google Patents

Dual-layer magnetic recording tape

Info

Publication number
GB1366192A
GB1366192A GB888772A GB888772A GB1366192A GB 1366192 A GB1366192 A GB 1366192A GB 888772 A GB888772 A GB 888772A GB 888772 A GB888772 A GB 888772A GB 1366192 A GB1366192 A GB 1366192A
Authority
GB
United Kingdom
Prior art keywords
layer
magnetisable
magnetic recording
microinches
thickness
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
GB888772A
Other languages
English (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.)
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
Publication of GB1366192A publication Critical patent/GB1366192A/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

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
GB888772A 1971-02-26 1972-02-25 Dual-layer magnetic recording tape Expired GB1366192A (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
GB1366192A true GB1366192A (en) 1974-09-11

Family

ID=26817106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB888772A Expired GB1366192A (en) 1971-02-26 1972-02-25 Dual-layer magnetic recording tape

Country Status (11)

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

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
WO1983001145A1 (fr) * 1981-09-28 1983-03-31 Kubota, Isao Support d'enregistrement magnetique
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
AR192622A1 (es) 1973-02-28
JPS5228364B1 (fr) 1977-07-26
FR2126451B1 (fr) 1975-10-24
SE382274B (sv) 1976-01-19
DE2208792A1 (de) 1973-03-08
NL7202051A (fr) 1972-08-29
CA963321A (en) 1975-02-25
DE2208792B2 (de) 1976-08-19
IT948737B (it) 1973-06-11
BE779893A (fr) 1972-08-25
ES399853A1 (es) 1975-09-16
FR2126451A1 (fr) 1972-10-06

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Legal Events

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