CA974046A - Magnetic recording coating - Google Patents

Magnetic recording coating

Info

Publication number
CA974046A
CA974046A CA114,688A CA114688A CA974046A CA 974046 A CA974046 A CA 974046A CA 114688 A CA114688 A CA 114688A CA 974046 A CA974046 A CA 974046A
Authority
CA
Canada
Prior art keywords
magnetic recording
recording coating
coating
magnetic
recording
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
CA114,688A
Other versions
CA114688S (en
Inventor
Cecil R. Hawkins
Ronald E. Kubec
Joseph E. Haefele
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA974046A publication Critical patent/CA974046A/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
    • G11B5/708—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
CA114,688A 1970-06-08 1971-06-03 Magnetic recording coating Expired CA974046A (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
CA974046A true CA974046A (en) 1975-09-09

Family

ID=21931507

Family Applications (1)

Application Number Title Priority Date Filing Date
CA114,688A Expired CA974046A (en) 1970-06-08 1971-06-03 Magnetic recording coating

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
DE3473958D1 (en) * 1984-10-31 1988-10-13 Ibm Deutschland Magnetic disc and process for producing it

Also Published As

Publication number Publication date
FR2096031A5 (en) 1972-02-11
DE2124174A1 (en) 1971-12-16
NL7106779A (en) 1971-12-10
BE768176A (en) 1971-12-07
GB1342797A (en) 1974-01-03

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