GB933772A - Improvements in or relating to the orientation of magnetic particles - Google Patents

Improvements in or relating to the orientation of magnetic particles

Info

Publication number
GB933772A
GB933772A GB241660A GB241660A GB933772A GB 933772 A GB933772 A GB 933772A GB 241660 A GB241660 A GB 241660A GB 241660 A GB241660 A GB 241660A GB 933772 A GB933772 A GB 933772A
Authority
GB
United Kingdom
Prior art keywords
tape
bars
magnetic
relating
orientation
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
GB241660A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB933772A publication Critical patent/GB933772A/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
    • G11B5/84—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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Abstract

933,772. Magnetic compositions. EASTMAN KODAK CO. Jan. 22, 1960 [Feb. 2, 1959], No. 2416/60. Class 38 (2). In order to align the magnetic oxide particles of a magnetic tape transversely to its length prior to the hardening of a binder material, the tape 4 moves between magnetic poles 9, 10 which provide a transverse field and bars 14 of soft iron are disposed above the tape at a small angle with the length of the tape so that a concentrated field is provided at the tape in the spaces between bars. The slight offsetting of the bars permits all areas of the tape to be affected during the passage of the tape. The bars are secured to a brass plate and a second similar assembly may be provided below the tape.
GB241660A 1959-02-02 1960-01-22 Improvements in or relating to the orientation of magnetic particles Expired GB933772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR785598A FR1231059A (en) 1959-02-02 1959-02-02 Method and apparatus for the orientation of magnetic films and tapes in the transverse direction

Publications (1)

Publication Number Publication Date
GB933772A true GB933772A (en) 1963-08-14

Family

ID=8710765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB241660A Expired GB933772A (en) 1959-02-02 1960-01-22 Improvements in or relating to the orientation of magnetic particles

Country Status (3)

Country Link
DE (1) DE1141469B (en)
FR (1) FR1231059A (en)
GB (1) GB933772A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476362A1 (en) * 1980-02-19 1981-08-21 Sony Corp METHOD FOR MANUFACTURING A MAGNETIC RECORDING MEANS
FR2476891A1 (en) * 1980-02-22 1981-08-28 Sony Corp METHOD FOR MANUFACTURING A MAGNETIC RECORDING MEDIUM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE649596C (en) * 1932-12-01 1937-08-28 Aeg Process for the production of a phonetic transcription carrier
FR1008218A (en) * 1950-01-11 1952-05-15 Further training in the manufacture of magnetic tapes carrying a sound recording
US2711901A (en) * 1952-05-21 1955-06-28 Minnesota Mining & Mfg Magnetic recording tape and method of making same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476362A1 (en) * 1980-02-19 1981-08-21 Sony Corp METHOD FOR MANUFACTURING A MAGNETIC RECORDING MEANS
FR2476891A1 (en) * 1980-02-22 1981-08-28 Sony Corp METHOD FOR MANUFACTURING A MAGNETIC RECORDING MEDIUM

Also Published As

Publication number Publication date
DE1141469B (en) 1962-12-20
FR1231059A (en) 1960-09-26
DE1141469C2 (en) 1963-07-05

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