BE691147A - - Google Patents

Info

Publication number
BE691147A
BE691147A BE691147A BE691147A BE691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A BE 691147 A BE691147 A BE 691147A
Authority
BE
Belgium
Application number
BE691147A
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 filed Critical
Publication of BE691147A publication Critical patent/BE691147A/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
    • G11B5/70636—CrO2
BE691147A 1965-12-14 1966-12-13 BE691147A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51382565A 1965-12-14 1965-12-14

Publications (1)

Publication Number Publication Date
BE691147A true BE691147A (da) 1967-06-13

Family

ID=24044799

Family Applications (1)

Application Number Title Priority Date Filing Date
BE691147A BE691147A (da) 1965-12-14 1966-12-13

Country Status (6)

Country Link
US (1) US3449073A (da)
BE (1) BE691147A (da)
DE (1) DE1592492B1 (da)
FR (1) FR1505024A (da)
GB (1) GB1127968A (da)
NL (1) NL6617476A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512930A (en) * 1969-05-07 1970-05-19 Du Pont Stabilized ferromagnetic chromium dioxide
JPS4843436B1 (da) * 1970-10-20 1973-12-18
JPS4843437B1 (da) * 1970-12-16 1973-12-18
IT1012202B (it) * 1974-05-09 1977-03-10 Montedison Spa Procedimento per la produzione di biossido di cromo ferromagnetico
DE2942646A1 (de) 1979-10-22 1981-04-30 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von ferromagnetischem chromdioxid
DE3513723A1 (de) * 1985-04-17 1986-10-23 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von ferromagnetischem chromdioxid
AU2003276682A1 (en) * 2002-08-29 2004-03-19 Tata Institute Of Fundamental Research Chromium dioxide (cro2) and composites of chromium dioxide and other oxides of chromium such as cro2/cr2o3 and cro2/cr2o5 and process for manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278263A (en) * 1964-11-27 1966-10-11 Du Pont Ferromagnetic chromium dioxide and preparation thereof

Also Published As

Publication number Publication date
GB1127968A (en) 1968-09-25
NL6617476A (da) 1967-06-15
FR1505024A (fr) 1967-12-08
DE1592492B1 (de) 1971-04-08
US3449073A (en) 1969-06-10

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: E.I. DU PONT DE NEMOURS AND CY

Effective date: 19861213