GB1416495A - Flexible magnetic recording media - Google Patents

Flexible magnetic recording media

Info

Publication number
GB1416495A
GB1416495A GB447073A GB447073A GB1416495A GB 1416495 A GB1416495 A GB 1416495A GB 447073 A GB447073 A GB 447073A GB 447073 A GB447073 A GB 447073A GB 1416495 A GB1416495 A GB 1416495A
Authority
GB
United Kingdom
Prior art keywords
binder
web
centre
magnetic recording
circular
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
GB447073A
Other languages
English (en)
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.)
Meritor Inc
Original Assignee
Arvin Industries Inc
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 Arvin Industries Inc filed Critical Arvin Industries Inc
Publication of GB1416495A publication Critical patent/GB1416495A/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
    • G11B5/84—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)
GB447073A 1972-02-03 1973-01-29 Flexible magnetic recording media Expired GB1416495A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1416495A true GB1416495A (en) 1975-12-03

Family

ID=22834929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB447073A Expired GB1416495A (en) 1972-02-03 1973-01-29 Flexible magnetic recording media

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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030858A1 (fr) * 1979-12-13 1981-06-24 Dysan Corporation Procédé et dispositif de fabrication de disques d'enregistrement flexibles ayant une contrainte thermique et hygroscopique améliorée
US4423454A (en) * 1979-07-12 1983-12-27 Basf Aktiengesellschaft Magnetic recording disk

Families Citing this family (4)

* 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
JPS58122623A (ja) * 1982-01-14 1983-07-21 Sony Corp 円盤状磁気記録媒体

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423454A (en) * 1979-07-12 1983-12-27 Basf Aktiengesellschaft Magnetic recording disk
EP0030858A1 (fr) * 1979-12-13 1981-06-24 Dysan Corporation Procédé et dispositif de fabrication de disques d'enregistrement flexibles ayant une contrainte thermique et hygroscopique améliorée

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
JPS4889704A (fr) 1973-11-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee