FR1081522A - Magnetic recording medium, especially in tape or film form - Google Patents

Magnetic recording medium, especially in tape or film form

Info

Publication number
FR1081522A
FR1081522A FR1081522DA FR1081522A FR 1081522 A FR1081522 A FR 1081522A FR 1081522D A FR1081522D A FR 1081522DA FR 1081522 A FR1081522 A FR 1081522A
Authority
FR
France
Prior art keywords
tape
recording medium
magnetic recording
film form
film
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
Other languages
French (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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1081522A publication Critical patent/FR1081522A/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
    • G11B5/62—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
    • G11B5/706—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 the composition of the magnetic material
    • G11B5/70626—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 the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
FR1081522D 1952-07-30 1953-07-22 Magnetic recording medium, especially in tape or film form Expired FR1081522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1081522X 1952-07-30

Publications (1)

Publication Number Publication Date
FR1081522A true FR1081522A (en) 1954-12-21

Family

ID=7720925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1081522D Expired FR1081522A (en) 1952-07-30 1953-07-22 Magnetic recording medium, especially in tape or film form

Country Status (1)

Country Link
FR (1) FR1081522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052210A2 (en) * 1980-11-14 1982-05-26 BASF Aktiengesellschaft Method of producing fine barium ferrite particles having a high coercivity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052210A2 (en) * 1980-11-14 1982-05-26 BASF Aktiengesellschaft Method of producing fine barium ferrite particles having a high coercivity
EP0052210A3 (en) * 1980-11-14 1983-09-07 Basf Aktiengesellschaft Method of producing fine barium ferrite particles having a high coercivity, and their use in the production of magnetic record carriers

Similar Documents

Publication Publication Date Title
CH268583A (en) Magnetic tape recording and playback apparatus.
FR1136491A (en) Recording medium
CH350326A (en) Device for guiding recording or playback tapes
NL189160B (en) MAGNETIC RECORDING MEDIA.
FR1094401A (en) Magnetic recording soundtrack loader
FR1103477A (en) Magnetic recording, reproducing and erasing heads
CH350327A (en) Message storage device with tape or film-shaped recording medium
FR1049360A (en) Tape recorder in particular for perforated tape recorders
FR1081522A (en) Magnetic recording medium, especially in tape or film form
NL179689B (en) MAGNETIC RECORDING MEDIA.
CH301485A (en) Tape-shaped recording media for recording measuring instruments.
FR1105934A (en) Recording medium, in particular for facsimile signals
FR1050118A (en) Relay coil and its casing, in particular for recording track signals
FR1153503A (en) Reel for magnetic recording tape
CH301000A (en) Tape-shaped recording media for recording measuring instruments.
FR1090243A (en) Advanced recording medium for phonographs
FR1099554A (en) Improvement in devices for reading recordings on discs
BE517912A (en) TRACING MECHANISM - IN PARTICULAR FOR RECORDING INSTRUMENTS.
NL188873B (en) RECORDING MEDIA FOR MAGNETIC REGISTRATION.
DK86119C (en) Magnetic sound recording and reproducing apparatus.
NL182593B (en) MAGNETIC TAPE CASSETTE DEVICE.
NL178823B (en) MAGNETIC TAPE UNIT.
AU157785B2 (en) Recording digital information
FR1061975A (en) Magnetic recording medium
FR1079056A (en) Plotter mechanism, in particular for recording instruments