NL7312614A - - Google Patents

Info

Publication number
NL7312614A
NL7312614A NL7312614A NL7312614A NL7312614A NL 7312614 A NL7312614 A NL 7312614A NL 7312614 A NL7312614 A NL 7312614A NL 7312614 A NL7312614 A NL 7312614A NL 7312614 A NL7312614 A NL 7312614A
Authority
NL
Netherlands
Application number
NL7312614A
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 NL7312614A publication Critical patent/NL7312614A/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
NL7312614A 1972-09-13 1973-09-13 NL7312614A (enrdf_load_html_response)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL7312614A true NL7312614A (enrdf_load_html_response) 1974-03-15

Family

ID=9104193

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7312614A NL7312614A (enrdf_load_html_response) 1972-09-13 1973-09-13

Country Status (9)

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

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
GB1436140A (en) 1976-05-19
DD105920A5 (enrdf_load_html_response) 1974-05-12
CH581075A5 (enrdf_load_html_response) 1976-10-29
FR2199155B1 (enrdf_load_html_response) 1978-04-28
IT995315B (it) 1975-11-10
JPS4969104A (enrdf_load_html_response) 1974-07-04
BE804829A (fr) 1974-03-13
JPS5814047B2 (ja) 1983-03-17
DE2343562A1 (de) 1974-03-28
DE2343562C3 (de) 1978-09-28
FR2199155A1 (enrdf_load_html_response) 1974-04-05
DE2343562B2 (de) 1978-02-02

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Legal Events

Date Code Title Description
BB A search report has been drawn up
BV The patent application has lapsed