FR2206548B1 - - Google Patents

Info

Publication number
FR2206548B1
FR2206548B1 FR7339706A FR7339706A FR2206548B1 FR 2206548 B1 FR2206548 B1 FR 2206548B1 FR 7339706 A FR7339706 A FR 7339706A FR 7339706 A FR7339706 A FR 7339706A FR 2206548 B1 FR2206548 B1 FR 2206548B1
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
FR7339706A
Other languages
French (fr)
Other versions
FR2206548A1 (xx
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 FR2206548A1 publication Critical patent/FR2206548A1/fr
Application granted granted Critical
Publication of FR2206548B1 publication Critical patent/FR2206548B1/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
    • 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer
    • G11B5/7085—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the layer non-magnetic abrasive particles
FR7339706A 1972-11-10 1973-11-08 Expired FR2206548B1 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722254981 DE2254981A1 (de) 1972-11-10 1972-11-10 Verfahren zur herstellung von magnetplatten mit duennen magnetschichten

Publications (2)

Publication Number Publication Date
FR2206548A1 FR2206548A1 (xx) 1974-06-07
FR2206548B1 true FR2206548B1 (xx) 1979-02-23

Family

ID=5861309

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339706A Expired FR2206548B1 (xx) 1972-11-10 1973-11-08

Country Status (7)

Country Link
JP (1) JPS50803A (xx)
BE (1) BE807105A (xx)
DE (1) DE2254981A1 (xx)
FR (1) FR2206548B1 (xx)
GB (1) GB1448593A (xx)
IT (1) IT996425B (xx)
NL (1) NL7315209A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067682A (en) * 1975-08-01 1978-01-10 Nichols Engineering & Research Corporation Oil burner system
JPS5260308U (xx) * 1975-10-28 1977-05-02
JPS5613525A (en) * 1979-07-16 1981-02-09 Tdk Corp Magnetic recording medium
JPS5724027A (en) * 1980-07-16 1982-02-08 Tdk Corp Magnetic recording medium
DE3407721A1 (de) * 1984-03-02 1985-09-12 Basf Ag, 6700 Ludwigshafen Magnetische aufzeichnungstraeger
FR2638000B1 (fr) * 1988-10-18 1990-12-14 Kodak Pathe Carte a memoire magnetique a grande capacite et procede de fabrication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1804393A1 (de) * 1968-10-22 1970-05-27 Basf Ag Verfahren zur Herstellung von magnetischen Aufzeichnungstraegern
CH506155A (de) * 1969-04-14 1971-04-15 Ibm Magnetische Datenspeichervorrichtung

Also Published As

Publication number Publication date
GB1448593A (en) 1976-09-08
DE2254981A1 (de) 1974-06-12
NL7315209A (xx) 1974-05-14
JPS50803A (xx) 1975-01-07
FR2206548A1 (xx) 1974-06-07
BE807105A (fr) 1974-05-09
IT996425B (it) 1975-12-10

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Legal Events

Date Code Title Description
ST Notification of lapse