CH506155A - Magnetische Datenspeichervorrichtung - Google Patents

Magnetische Datenspeichervorrichtung

Info

Publication number
CH506155A
CH506155A CH439870A CH439870A CH506155A CH 506155 A CH506155 A CH 506155A CH 439870 A CH439870 A CH 439870A CH 439870 A CH439870 A CH 439870A CH 506155 A CH506155 A CH 506155A
Authority
CH
Switzerland
Prior art keywords
storage device
data storage
magnetic data
magnetic
storage
Prior art date
Application number
CH439870A
Other languages
English (en)
Inventor
Vincent Peugh Herbert
Ricco Leo Di
Ray Hawkins Cecil
George Newman Ernest
Francis Ryon Robert
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 CH506155A publication Critical patent/CH506155A/de

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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • 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
    • G11B5/702—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 bonding agent
    • G11B5/7023—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 bonding agent containing polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins
    • 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
    • G11B5/716—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 two or more magnetic layers
    • G11B5/718—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 two or more magnetic layers at least one on each side of the base layer
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/733—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the addition of non-magnetic 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
CH439870A 1969-04-14 1970-03-24 Magnetische Datenspeichervorrichtung CH506155A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81573669A 1969-04-14 1969-04-14
US81560069A 1969-04-14 1969-04-14

Publications (1)

Publication Number Publication Date
CH506155A true CH506155A (de) 1971-04-15

Family

ID=27123975

Family Applications (1)

Application Number Title Priority Date Filing Date
CH439870A CH506155A (de) 1969-04-14 1970-03-24 Magnetische Datenspeichervorrichtung

Country Status (4)

Country Link
BE (1) BE748938A (de)
CH (1) CH506155A (de)
DE (1) DE2016422A1 (de)
FR (1) FR2039149A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136044B1 (de) * 1971-04-20 1976-10-06
DE2254981A1 (de) * 1972-11-10 1974-06-12 Basf Ag Verfahren zur herstellung von magnetplatten mit duennen magnetschichten
DE2255028A1 (de) * 1972-11-10 1974-06-12 Basf Ag Verfahren zur herstellung von magnetischen aufzeichnungsplatten
GB1536818A (en) * 1976-09-14 1978-12-20 Dainippon Printing Co Ltd Magnetic sable recording structure
FR2461996A1 (fr) * 1979-07-18 1981-02-06 Matsushita Electric Ind Co Ltd Support d'enregistrement magnetique
US4515828A (en) * 1981-01-02 1985-05-07 International Business Machines Corporation Planarization method
DE3212907C2 (de) * 1981-04-06 1985-10-24 Olympus Optical Co., Ltd., Tokio/Tokyo Magnetband sowie Verfahren zu dessen Herstellung
US4548855A (en) * 1982-11-02 1985-10-22 Toray Industries, Inc. Polyester film for magnetic recording medium
JPH0610873B2 (ja) * 1984-02-08 1994-02-09 日立マクセル株式会社 磁気デイスク
JPH0618067B2 (ja) * 1984-02-13 1994-03-09 日本ビクター株式会社 磁気記録媒体
CA1243402A (en) * 1984-05-16 1988-10-18 Burroughs Corporation Methods of preparing and applying subbing layers for optical data disks
US4677032A (en) * 1985-09-23 1987-06-30 International Business Machines Corporation Vertical magnetic recording media with multilayered magnetic film structure

Also Published As

Publication number Publication date
DE2016422A1 (de) 1970-10-15
BE748938A (fr) 1970-09-16
FR2039149A1 (de) 1971-01-15

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Legal Events

Date Code Title Description
PL Patent ceased