BE770795A - METHOD FOR PRODUCING MAGNETIC RECORDING DISCS. - Google Patents

METHOD FOR PRODUCING MAGNETIC RECORDING DISCS.

Info

Publication number
BE770795A
BE770795A BE770795A BE770795A BE770795A BE 770795 A BE770795 A BE 770795A BE 770795 A BE770795 A BE 770795A BE 770795 A BE770795 A BE 770795A BE 770795 A BE770795 A BE 770795A
Authority
BE
Belgium
Prior art keywords
magnetic recording
producing magnetic
recording discs
discs
producing
Prior art date
Application number
BE770795A
Other languages
French (fr)
Original Assignee
Memorex Corp
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 Memorex Corp filed Critical Memorex Corp
Priority to BE770795A priority Critical patent/BE770795A/en
Publication of BE770795A publication Critical patent/BE770795A/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • 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
    • G11B5/41—Cleaning of heads
    • 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
    • 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
BE770795A 1971-07-30 1971-07-30 METHOD FOR PRODUCING MAGNETIC RECORDING DISCS. BE770795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE770795A BE770795A (en) 1971-07-30 1971-07-30 METHOD FOR PRODUCING MAGNETIC RECORDING DISCS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE770795A BE770795A (en) 1971-07-30 1971-07-30 METHOD FOR PRODUCING MAGNETIC RECORDING DISCS.

Publications (1)

Publication Number Publication Date
BE770795A true BE770795A (en) 1971-12-01

Family

ID=3858469

Family Applications (1)

Application Number Title Priority Date Filing Date
BE770795A BE770795A (en) 1971-07-30 1971-07-30 METHOD FOR PRODUCING MAGNETIC RECORDING DISCS.

Country Status (1)

Country Link
BE (1) BE770795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132040A1 (en) * 1983-06-09 1985-01-23 E.I. Du Pont De Nemours And Company Nonmagnetic particles to improve properties of magnetic recording compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0132040A1 (en) * 1983-06-09 1985-01-23 E.I. Du Pont De Nemours And Company Nonmagnetic particles to improve properties of magnetic recording compositions

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MEMOREX CORP.

Effective date: 19890731