CH581075A5 - - Google Patents

Info

Publication number
CH581075A5
CH581075A5 CH1309873A CH1309873A CH581075A5 CH 581075 A5 CH581075 A5 CH 581075A5 CH 1309873 A CH1309873 A CH 1309873A CH 1309873 A CH1309873 A CH 1309873A CH 581075 A5 CH581075 A5 CH 581075A5
Authority
CH
Switzerland
Application number
CH1309873A
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of CH581075A5 publication Critical patent/CH581075A5/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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • 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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • 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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70689—Magnetite
CH1309873A 1972-09-13 1973-09-12 CH581075A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7232367A FR2199155B1 (en) 1972-09-13 1972-09-13

Publications (1)

Publication Number Publication Date
CH581075A5 true CH581075A5 (en) 1976-10-29

Family

ID=9104193

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1309873A CH581075A5 (en) 1972-09-13 1973-09-12

Country Status (9)

Country Link
JP (1) JPS5814047B2 (en)
BE (1) BE804829A (en)
CH (1) CH581075A5 (en)
DD (1) DD105920A5 (en)
DE (1) DE2343562C3 (en)
FR (1) FR2199155B1 (en)
GB (1) GB1436140A (en)
IT (1) IT995315B (en)
NL (1) NL7312614A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801452C2 (en) * 1978-01-13 1985-03-28 Agfa-Gevaert Ag, 5090 Leverkusen Magnetic recording material
US4778719A (en) * 1986-08-25 1988-10-18 Eastman Kodak Company Particulate magnetic recording media and method of manufacture thereof

Also Published As

Publication number Publication date
BE804829A (en) 1974-03-13
DE2343562C3 (en) 1978-09-28
FR2199155B1 (en) 1978-04-28
NL7312614A (en) 1974-03-15
FR2199155A1 (en) 1974-04-05
IT995315B (en) 1975-11-10
DE2343562A1 (en) 1974-03-28
DD105920A5 (en) 1974-05-12
JPS5814047B2 (en) 1983-03-17
JPS4969104A (en) 1974-07-04
DE2343562B2 (en) 1978-02-02
GB1436140A (en) 1976-05-19

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