BE804829A - Materiau pour l'enregistrement magnetique a haute resolution - Google Patents

Materiau pour l'enregistrement magnetique a haute resolution

Info

Publication number
BE804829A
BE804829A BE135629A BE135629A BE804829A BE 804829 A BE804829 A BE 804829A BE 135629 A BE135629 A BE 135629A BE 135629 A BE135629 A BE 135629A BE 804829 A BE804829 A BE 804829A
Authority
BE
Belgium
Prior art keywords
magnetic recording
recording material
high resolution
resolution magnetic
resolution
Prior art date
Application number
BE135629A
Other languages
English (en)
French (fr)
Inventor
S.A. Kodak-Pathe
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 BE804829A publication Critical patent/BE804829A/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
BE135629A 1972-09-13 1973-09-13 Materiau pour l'enregistrement magnetique a haute resolution BE804829A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE804829A true BE804829A (fr) 1974-03-13

Family

ID=9104193

Family Applications (1)

Application Number Title Priority Date Filing Date
BE135629A BE804829A (fr) 1972-09-13 1973-09-13 Materiau pour l'enregistrement magnetique a haute resolution

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801452C2 (de) * 1978-01-13 1985-03-28 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches Aufzeichnungsmaterial
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
JPS4969104A (cs) 1974-07-04
FR2199155A1 (cs) 1974-04-05
JPS5814047B2 (ja) 1983-03-17
DD105920A5 (cs) 1974-05-12
DE2343562A1 (de) 1974-03-28
DE2343562C3 (de) 1978-09-28
NL7312614A (cs) 1974-03-15
GB1436140A (en) 1976-05-19
DE2343562B2 (de) 1978-02-02
IT995315B (it) 1975-11-10
FR2199155B1 (cs) 1978-04-28
CH581075A5 (cs) 1976-10-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: EASTMAN KODAK CY

Effective date: 19880930