FR2180802A1 - - Google Patents

Info

Publication number
FR2180802A1
FR2180802A1 FR7313534A FR7313534A FR2180802A1 FR 2180802 A1 FR2180802 A1 FR 2180802A1 FR 7313534 A FR7313534 A FR 7313534A FR 7313534 A FR7313534 A FR 7313534A FR 2180802 A1 FR2180802 A1 FR 2180802A1
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.)
Granted
Application number
FR7313534A
Other languages
French (fr)
Other versions
FR2180802B3 (enrdf_load_stackoverflow
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of FR2180802A1 publication Critical patent/FR2180802A1/fr
Application granted granted Critical
Publication of FR2180802B3 publication Critical patent/FR2180802B3/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • 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
FR7313534A 1972-04-15 1973-04-13 Expired FR2180802B3 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2218306A DE2218306C3 (de) 1972-04-15 1972-04-15 Magnetischer Aufzeichnungsträger

Publications (2)

Publication Number Publication Date
FR2180802A1 true FR2180802A1 (enrdf_load_stackoverflow) 1973-11-30
FR2180802B3 FR2180802B3 (enrdf_load_stackoverflow) 1976-04-02

Family

ID=5842074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7313534A Expired FR2180802B3 (enrdf_load_stackoverflow) 1972-04-15 1973-04-13

Country Status (4)

Country Link
JP (1) JPS4920081A (enrdf_load_stackoverflow)
DE (1) DE2218306C3 (enrdf_load_stackoverflow)
FR (1) FR2180802B3 (enrdf_load_stackoverflow)
GB (1) GB1417521A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258518A (en) * 1975-11-08 1977-05-14 Nakamatsu Yoshiro Air head recorder reproducer
JPS5258509A (en) * 1975-11-08 1977-05-14 Nakamatsu Yoshiro Medium air pressing recorder reproducer
US4074330A (en) * 1976-08-30 1978-02-14 International Business Machines Corporation Flexible disk storage apparatus
JPS60160001A (ja) * 1984-01-31 1985-08-21 Nippon Kogaku Kk <Nikon> 炭化物で表面保護されたミラー
US4777068A (en) * 1984-08-10 1988-10-11 Canon Kabushiki Kaisha Optical recording medium
JPS6180640A (ja) * 1984-09-28 1986-04-24 Canon Inc 光学的記録媒体
GB8827541D0 (en) * 1988-11-25 1988-12-29 Atomic Energy Authority Uk Multilayer coatings

Also Published As

Publication number Publication date
DE2218306B2 (enrdf_load_stackoverflow) 1980-10-16
GB1417521A (en) 1975-12-10
DE2218306C3 (de) 1981-07-30
DE2218306A1 (de) 1973-10-25
FR2180802B3 (enrdf_load_stackoverflow) 1976-04-02
JPS4920081A (enrdf_load_stackoverflow) 1974-02-22

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