CA1046160A - Device for the magnetic recording by means of a magnetic strip domain as a recording playback head - Google Patents

Device for the magnetic recording by means of a magnetic strip domain as a recording playback head

Info

Publication number
CA1046160A
CA1046160A CA189,603A CA189603A CA1046160A CA 1046160 A CA1046160 A CA 1046160A CA 189603 A CA189603 A CA 189603A CA 1046160 A CA1046160 A CA 1046160A
Authority
CA
Canada
Prior art keywords
layer
domain
magnetic
field
recording medium
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
CA189,603A
Other languages
English (en)
French (fr)
Other versions
CA189603S (en
Inventor
Jan W. F. Dorleijn
Frederik A. De Jonge
Willem F. Druyvesteyn
Gerrit J. Koel
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Priority claimed from NL7300311A external-priority patent/NL7300311A/xx
Priority claimed from NL7312331A external-priority patent/NL7312331A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1046160A publication Critical patent/CA1046160A/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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4907—Details for scanning
    • G11B5/4915—Structure of specially adapted heads
    • G11B5/4923—Structure of specially adapted heads in which zones of the transducing part are being physically controllable
    • G11B5/493—Control of magnetic properties, e.g. saturation, anisotropy
    • G11B5/4938—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films
    • G11B5/4946—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films for formation or displacement of magnetic domains, e.g. walls, bubbles

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Record Carriers (AREA)
CA189,603A 1973-01-10 1974-01-07 Device for the magnetic recording by means of a magnetic strip domain as a recording playback head Expired CA1046160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7300311A NL7300311A (enExample) 1973-01-10 1973-01-10
NL7312331A NL7312331A (nl) 1973-09-07 1973-09-07 Inrichting voor magnetische registratie van televisiesignalen met een magnetisch strip- domein als schrijf/leeskop.

Publications (1)

Publication Number Publication Date
CA1046160A true CA1046160A (en) 1979-01-09

Family

ID=26644851

Family Applications (1)

Application Number Title Priority Date Filing Date
CA189,603A Expired CA1046160A (en) 1973-01-10 1974-01-07 Device for the magnetic recording by means of a magnetic strip domain as a recording playback head

Country Status (6)

Country Link
US (1) US4091429A (enExample)
JP (1) JPS5627923B2 (enExample)
CA (1) CA1046160A (enExample)
DE (1) DE2362844A1 (enExample)
FR (1) FR2213556A1 (enExample)
GB (1) GB1436041A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2506426A1 (de) * 1974-02-28 1975-09-04 Philips Nv Aufzeichnungsvorrichtung zur speicherung und wiedergabe von daten
US4700253A (en) * 1983-11-22 1987-10-13 Minnesota Mining And Manufacturing Company Slanted pole head for magnetic recording
US5331491A (en) * 1991-03-07 1994-07-19 Sony Corporation High-density magnetic recording and reproducing head
US8134801B2 (en) * 2007-03-19 2012-03-13 Dimambro Bryan Electromagnetic data storage devices

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7109572A (enExample) * 1971-07-10 1973-01-12
NL7204924A (enExample) * 1972-04-13 1973-10-16

Also Published As

Publication number Publication date
DE2362844A1 (de) 1974-07-11
US4091429A (en) 1978-05-23
JPS5627923B2 (enExample) 1981-06-27
JPS49105424A (enExample) 1974-10-05
GB1436041A (en) 1976-05-19
FR2213556A1 (enExample) 1974-08-02

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