BE768176A - COATING FOR MAGNETIC RECORDING - Google Patents

COATING FOR MAGNETIC RECORDING

Info

Publication number
BE768176A
BE768176A BE768176A BE768176A BE768176A BE 768176 A BE768176 A BE 768176A BE 768176 A BE768176 A BE 768176A BE 768176 A BE768176 A BE 768176A BE 768176 A BE768176 A BE 768176A
Authority
BE
Belgium
Prior art keywords
coating
magnetic recording
recording
magnetic
Prior art date
Application number
BE768176A
Other languages
French (fr)
Inventor
J E Haefele
C R Hawkins
R E Kubec
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BE768176A publication Critical patent/BE768176A/en

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
    • G11B5/708—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 addition of non-magnetic particles to the layer
    • G11B5/7085—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 addition of non-magnetic particles to the layer non-magnetic abrasive particles
    • 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
    • G11B5/708—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 addition of non-magnetic particles to the layer
BE768176A 1970-06-08 1971-06-07 COATING FOR MAGNETIC RECORDING BE768176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4428470A 1970-06-08 1970-06-08

Publications (1)

Publication Number Publication Date
BE768176A true BE768176A (en) 1971-12-07

Family

ID=21931507

Family Applications (1)

Application Number Title Priority Date Filing Date
BE768176A BE768176A (en) 1970-06-08 1971-06-07 COATING FOR MAGNETIC RECORDING

Country Status (6)

Country Link
BE (1) BE768176A (en)
CA (1) CA974046A (en)
DE (1) DE2124174A1 (en)
FR (1) FR2096031A5 (en)
GB (1) GB1342797A (en)
NL (1) NL7106779A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2512450C3 (en) * 1975-03-21 1981-11-12 Basf Ag, 6700 Ludwigshafen Layer magnetogram carrier
JPS5758227A (en) * 1980-09-25 1982-04-07 Tdk Corp Magnetic recording medium
US4451532A (en) * 1981-05-29 1984-05-29 International Business Machines Corporation Magnetic recording composition employing mono-dispersed spherical load-bearing particles
EP0179934B1 (en) * 1984-10-31 1988-04-27 Ibm Deutschland Gmbh Magnetic disc and process for producing it
EP0180651B1 (en) * 1984-10-31 1988-09-07 Ibm Deutschland Gmbh Magnetic disc and process for producing it

Also Published As

Publication number Publication date
CA974046A (en) 1975-09-09
GB1342797A (en) 1974-01-03
FR2096031A5 (en) 1972-02-11
DE2124174A1 (en) 1971-12-16
NL7106779A (en) 1971-12-10

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: INTERNATIONAL BUSINESS MACHINES CORPORATION

Effective date: 19910607