GB1552405A - Magnetisable material - Google Patents

Magnetisable material

Info

Publication number
GB1552405A
GB1552405A GB1044877A GB1044877A GB1552405A GB 1552405 A GB1552405 A GB 1552405A GB 1044877 A GB1044877 A GB 1044877A GB 1044877 A GB1044877 A GB 1044877A GB 1552405 A GB1552405 A GB 1552405A
Authority
GB
United Kingdom
Prior art keywords
magnetisable material
magnetisable
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
GB1044877A
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.)
Eastman Kodak Co
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 GB1552405A publication Critical patent/GB1552405A/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
    • G11B5/706—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
GB1044877A 1976-03-12 1977-03-11 Magnetisable material Expired GB1552405A (en)

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
GB1552405A true GB1552405A (en) 1979-09-12

Family

ID=9170308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1044877A Expired GB1552405A (en) 1976-03-12 1977-03-11 Magnetisable material

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57501053A (enrdf_load_stackoverflow) * 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 (enrdf_load_stackoverflow) *
JPS5523449B2 (enrdf_load_stackoverflow) * 1974-08-11 1980-06-23
JPS5422838B2 (enrdf_load_stackoverflow) * 1974-08-11 1979-08-09

Also Published As

Publication number Publication date
JPS52114499A (en) 1977-09-26
NL7702651A (nl) 1977-09-14
FR2344107B1 (enrdf_load_stackoverflow) 1980-04-30
DE2710776A1 (de) 1977-09-15
FR2344107A1 (fr) 1977-10-07
BE852362A (fr) 1977-09-12

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Legal Events

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