JPS4889704A - - Google Patents

Info

Publication number
JPS4889704A
JPS4889704A JP1250873A JP1250873A JPS4889704A JP S4889704 A JPS4889704 A JP S4889704A JP 1250873 A JP1250873 A JP 1250873A JP 1250873 A JP1250873 A JP 1250873A JP S4889704 A JPS4889704 A JP S4889704A
Authority
JP
Japan
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.)
Pending
Application number
JP1250873A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4889704A publication Critical patent/JPS4889704A/ja
Pending 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/852—Orientation in a magnetic field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/005—Producing optically read record carriers, e.g. optical discs
    • B29D17/007—Forming the relief pattern on a support larger than the record
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs
    • 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
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP1250873A 1972-02-03 1973-02-01 Pending JPS4889704A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22307872A 1972-02-03 1972-02-03

Publications (1)

Publication Number Publication Date
JPS4889704A true JPS4889704A (fr) 1973-11-22

Family

ID=22834929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1250873A Pending JPS4889704A (fr) 1972-02-03 1973-02-01

Country Status (5)

Country Link
JP (1) JPS4889704A (fr)
CA (1) CA1010568A (fr)
DE (1) DE2304311A1 (fr)
FR (1) FR2173983B3 (fr)
GB (1) GB1416495A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002520A1 (fr) * 1982-01-14 1983-07-21 Chubachi, Ryoji Support d'enregistrement magnetique en forme de disque

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075672A (en) * 1976-02-09 1978-02-21 Graham Magnetics Incorporated Magnetic recording members
JPS6011370B2 (ja) * 1976-11-16 1985-03-25 富士写真フイルム株式会社 磁気記録媒体
US4237506A (en) * 1978-04-03 1980-12-02 Graham Magnetics Inc. Polymodal magnetic recording member
DE2928096A1 (de) * 1979-07-12 1981-02-05 Basf Ag Magnetischer aufzeichnungstraeger
BR8008111A (pt) * 1979-12-13 1981-06-30 Dysan Corp Processo para a fabricacao de um disco revestido flexivel,aparelhagem para o tratamento deste e dito disco de gravacao flexivel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002520A1 (fr) * 1982-01-14 1983-07-21 Chubachi, Ryoji Support d'enregistrement magnetique en forme de disque

Also Published As

Publication number Publication date
DE2304311A1 (de) 1973-08-16
FR2173983B3 (fr) 1976-01-30
CA1010568A (en) 1977-05-17
FR2173983A1 (fr) 1973-10-12
GB1416495A (en) 1975-12-03

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