BE852362A - Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication - Google Patents

Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication

Info

Publication number
BE852362A
BE852362A BE175714A BE175714A BE852362A BE 852362 A BE852362 A BE 852362A BE 175714 A BE175714 A BE 175714A BE 175714 A BE175714 A BE 175714A BE 852362 A BE852362 A BE 852362A
Authority
BE
Belgium
Prior art keywords
manufacturing
magnetic recording
ferric oxide
ferric
oxide
Prior art date
Application number
BE175714A
Other languages
English (en)
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 BE852362A publication Critical patent/BE852362A/fr

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
    • G11B5/70652—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 gamma - Fe2 O3
    • G11B5/70668—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 gamma - Fe2 O3 containing a dopant
    • G11B5/70673—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 gamma - Fe2 O3 containing a dopant containing Co
BE175714A 1976-03-12 1977-03-10 Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication BE852362A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7607074A FR2344107A1 (fr) 1976-03-12 1976-03-12 Oxyde ferrique aciculaire pour l'enregistrement magnetique et procede pour sa fabrication

Publications (1)

Publication Number Publication Date
BE852362A true BE852362A (fr) 1977-09-12

Family

ID=9170308

Family Applications (1)

Application Number Title Priority Date Filing Date
BE175714A BE852362A (fr) 1976-03-12 1977-03-10 Oxyde ferrique pour l'enregistrement magnetique et procede pour sa fabrication

Country Status (6)

Country Link
JP (1) JPS52114499A (fr)
BE (1) BE852362A (fr)
DE (1) DE2710776A1 (fr)
FR (1) FR2344107A1 (fr)
GB (1) GB1552405A (fr)
NL (1) NL7702651A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57501053A (fr) * 1980-07-16 1982-06-10
JPS5826035A (ja) * 1981-07-31 1983-02-16 Ishihara Sangyo Kaisha Ltd コバルト含有磁性酸化鉄の製造方法
DE3514008A1 (de) * 1985-04-18 1986-10-23 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung isotroper magnetischer, kobalthaltiger eisenoxide aus eisen (iii)-salzen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD91017A (fr) *
JPS5523449B2 (fr) * 1974-08-11 1980-06-23
JPS5422838B2 (fr) * 1974-08-11 1979-08-09

Also Published As

Publication number Publication date
FR2344107B1 (fr) 1980-04-30
GB1552405A (en) 1979-09-12
FR2344107A1 (fr) 1977-10-07
JPS52114499A (en) 1977-09-26
DE2710776A1 (de) 1977-09-15
NL7702651A (nl) 1977-09-14

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: EASTMAN KODAK CY

Effective date: 19860331