FR2173983B3 - - Google Patents

Info

Publication number
FR2173983B3
FR2173983B3 FR7303702A FR7303702A FR2173983B3 FR 2173983 B3 FR2173983 B3 FR 2173983B3 FR 7303702 A FR7303702 A FR 7303702A FR 7303702 A FR7303702 A FR 7303702A FR 2173983 B3 FR2173983 B3 FR 2173983B3
Authority
FR
France
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
FR7303702A
Other versions
FR2173983A1 (fr
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 FR2173983A1 publication Critical patent/FR2173983A1/fr
Application granted granted Critical
Publication of FR2173983B3 publication Critical patent/FR2173983B3/fr
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
FR7303702A 1972-02-03 1973-02-02 Expired FR2173983B3 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2173983A1 FR2173983A1 (fr) 1973-10-12
FR2173983B3 true FR2173983B3 (fr) 1976-01-30

Family

ID=22834929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7303702A Expired FR2173983B3 (fr) 1972-02-03 1973-02-02

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)

Families Citing this family (6)

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

Also Published As

Publication number Publication date
FR2173983A1 (fr) 1973-10-12
CA1010568A (en) 1977-05-17
GB1416495A (en) 1975-12-03
JPS4889704A (fr) 1973-11-22
DE2304311A1 (de) 1973-08-16

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Legal Events

Date Code Title Description
ST Notification of lapse