BE596224A - Perfectionnements aux éléments d'enregistrement magnétiques. - Google Patents

Perfectionnements aux éléments d'enregistrement magnétiques.

Info

Publication number
BE596224A
BE596224A BE596224A BE596224A BE596224A BE 596224 A BE596224 A BE 596224A BE 596224 A BE596224 A BE 596224A BE 596224 A BE596224 A BE 596224A BE 596224 A BE596224 A BE 596224A
Authority
BE
Belgium
Prior art keywords
magnetic recording
recording elements
elements
magnetic
recording
Prior art date
Application number
BE596224A
Other languages
English (en)
French (fr)
Inventor
Charles Hammond Arrington Jr
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of BE596224A publication Critical patent/BE596224A/fr

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
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field
    • 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
    • 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
    • G11B5/70636—CrO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/58—Processes of forming magnets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
BE596224A 1959-10-22 1960-10-20 Perfectionnements aux éléments d'enregistrement magnétiques. BE596224A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US847974A US3080319A (en) 1959-10-22 1959-10-22 Magnetic recording members and their preparation

Publications (1)

Publication Number Publication Date
BE596224A true BE596224A (fr) 1961-04-20

Family

ID=25301998

Family Applications (1)

Application Number Title Priority Date Filing Date
BE596224A BE596224A (fr) 1959-10-22 1960-10-20 Perfectionnements aux éléments d'enregistrement magnétiques.

Country Status (5)

Country Link
US (1) US3080319A (US07714131-20100511-C00038.png)
BE (1) BE596224A (US07714131-20100511-C00038.png)
FR (1) FR1273085A (US07714131-20100511-C00038.png)
GB (1) GB899483A (US07714131-20100511-C00038.png)
NL (1) NL257041A (US07714131-20100511-C00038.png)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243260A (en) * 1961-06-12 1966-03-29 Matsushita Electric Ind Co Ltd Method for preparing cro2 of rutile type crystalline structure
DE1238072B (de) * 1964-02-14 1967-04-06 Agfa Ag Schichtfoermiger Magnetspeicher
US3419420A (en) * 1964-11-02 1968-12-31 Eastman Kodak Co Magnetic coating compositions
US3278263A (en) * 1964-11-27 1966-10-11 Du Pont Ferromagnetic chromium dioxide and preparation thereof
US3484286A (en) * 1966-12-05 1969-12-16 Reeves Ind Inc High temperature magnetic tape
US3510489A (en) * 1968-07-31 1970-05-05 Ibm Web fabrication process
US3867299A (en) * 1971-08-11 1975-02-18 Bethlehem Steel Corp Method of making synthetic resin composites with magnetic fillers
EP0043882A1 (en) * 1980-07-16 1982-01-20 Kodak-Pathe Magnetic recording element, process for making the same and its use in recording
US4547534A (en) * 1983-03-18 1985-10-15 Memorex Corporation Method to disperse fine solids without size reduction

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA577428A (en) * 1959-06-09 E.I. Du Pont De Nemours And Company Preparation of ferromagnetic chromium oxide
US2694656A (en) * 1947-07-25 1954-11-16 Armour Res Found Magnetic impulse record member, magnetic material, and method of making magnetic material
US2796359A (en) * 1952-07-05 1957-06-18 Audio Devices Inc Production of magnetic sound recording tape
US2849312A (en) * 1954-02-01 1958-08-26 Milton J Peterman Method of aligning magnetic particles in a non-magnetic matrix
US2937028A (en) * 1954-06-17 1960-05-17 Kane Corp Du Plastic belt for sound recording and reproducing
US2883301A (en) * 1955-08-17 1959-04-21 Celanese Corp Magnetic recording tape
US2900282A (en) * 1956-07-20 1959-08-18 Sperry Rand Corp Method of treating magnetic material and resulting articles
US2911317A (en) * 1957-08-19 1959-11-03 Minnesota Mining & Mfg Magnetic recording media
US2975484A (en) * 1959-09-02 1961-03-21 Du Pont Process for producing films

Also Published As

Publication number Publication date
NL257041A (US07714131-20100511-C00038.png)
GB899483A (en) 1962-06-20
US3080319A (en) 1963-03-05
FR1273085A (fr) 1961-10-06

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