DD74306A - - Google Patents

Info

Publication number
DD74306A
DD74306A DD74306DA DD74306A DD 74306 A DD74306 A DD 74306A DD 74306D A DD74306D A DD 74306DA DD 74306 A DD74306 A DD 74306A
Authority
DD
German Democratic Republic
Application number
Publication of DD74306A publication Critical patent/DD74306A/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
    • G11B5/70652—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
    • G11B5/70663—Preparation processes specially adapted therefor, e.g. using stabilising agents
DD74306D DD74306A (enExample)

Publications (1)

Publication Number Publication Date
DD74306A true DD74306A (enExample)

Family

ID=263167

Family Applications (1)

Application Number Title Priority Date Filing Date
DD74306D DD74306A (enExample)

Country Status (1)

Country Link
DD (1) DD74306A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449710A1 (fr) * 1979-02-23 1980-09-19 Philips Nv Procede pour la preparation d'un pigment magnetique de particules de g-fe2o3 et element d'enregistrement magnetique comportant un tel pigment
FR2449711A1 (fr) * 1979-02-23 1980-09-19 Philips Nv Procede pour la preparation d'un pigment de feooh, et element d'enregistrement magnetique comportant un tel pigment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449710A1 (fr) * 1979-02-23 1980-09-19 Philips Nv Procede pour la preparation d'un pigment magnetique de particules de g-fe2o3 et element d'enregistrement magnetique comportant un tel pigment
FR2449711A1 (fr) * 1979-02-23 1980-09-19 Philips Nv Procede pour la preparation d'un pigment de feooh, et element d'enregistrement magnetique comportant un tel pigment

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