IT953770B - Mezzo magnetico di registrazione - Google Patents

Mezzo magnetico di registrazione

Info

Publication number
IT953770B
IT953770B IT23538/72A IT2353872A IT953770B IT 953770 B IT953770 B IT 953770B IT 23538/72 A IT23538/72 A IT 23538/72A IT 2353872 A IT2353872 A IT 2353872A IT 953770 B IT953770 B IT 953770B
Authority
IT
Italy
Prior art keywords
registration media
magnetic registration
magnetic
media
registration
Prior art date
Application number
IT23538/72A
Other languages
English (en)
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of IT953770B publication Critical patent/IT953770B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
    • G11B5/7371—Non-magnetic single underlayer comprising nickel
    • 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
    • G11B5/73913—Composites or coated substrates
    • 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
    • G11B5/73923—Organic polymer substrates

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Magnetic Record Carriers (AREA)
  • Chemically Coating (AREA)
  • Paints Or Removers (AREA)
IT23538/72A 1971-04-26 1972-04-26 Mezzo magnetico di registrazione IT953770B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2739571A JPS56850B1 (it) 1971-04-26 1971-04-26

Publications (1)

Publication Number Publication Date
IT953770B true IT953770B (it) 1973-08-10

Family

ID=12219857

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23538/72A IT953770B (it) 1971-04-26 1972-04-26 Mezzo magnetico di registrazione

Country Status (7)

Country Link
JP (1) JPS56850B1 (it)
CA (1) CA981533A (it)
DE (1) DE2220544A1 (it)
FR (1) FR2134565B1 (it)
GB (1) GB1366034A (it)
IT (1) IT953770B (it)
NL (1) NL7205642A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL181759C (nl) * 1976-09-14 1987-10-16 Dainippon Printing Co Ltd Magnetisch registratiemateriaal.
JPH0610873B2 (ja) * 1984-02-08 1994-02-09 日立マクセル株式会社 磁気デイスク
US4698251A (en) * 1985-01-22 1987-10-06 Victor Company Of Japan, Limited Magnetic recording medium and method of producing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1273334A (fr) * 1960-11-14 1961-10-06 Agfa Ag Support d'enregistrement magnétique à deux couches possédant une conductivité électrique améliorée
US3150939A (en) * 1961-07-17 1964-09-29 Ibm High density record carrier
DE1521152A1 (de) * 1965-07-16 1969-04-24 Basf Ag Metallisierung von Kunststoffoberflaechen
FR1473728A (fr) * 1966-04-01 1967-03-17 Wolfen Filmfab Veb Procédé et dispositif de production d'un matériau d'enregistrement magnétisable,de préférence sous forme de bande

Also Published As

Publication number Publication date
JPS56850B1 (it) 1981-01-09
CA981533A (en) 1976-01-13
NL7205642A (it) 1972-10-30
DE2220544A1 (de) 1972-11-09
GB1366034A (en) 1974-09-04
FR2134565B1 (it) 1974-12-20
FR2134565A1 (it) 1972-12-08

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