FR2424602A1 - Tete magnetique operant par magnetoresistance - Google Patents

Tete magnetique operant par magnetoresistance

Info

Publication number
FR2424602A1
FR2424602A1 FR7910192A FR7910192A FR2424602A1 FR 2424602 A1 FR2424602 A1 FR 2424602A1 FR 7910192 A FR7910192 A FR 7910192A FR 7910192 A FR7910192 A FR 7910192A FR 2424602 A1 FR2424602 A1 FR 2424602A1
Authority
FR
France
Prior art keywords
magnetic head
magnetoresistance
constituents
longitudinal axis
permeable material
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.)
Granted
Application number
FR7910192A
Other languages
English (en)
Other versions
FR2424602B1 (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.)
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 NL7804377A external-priority patent/NL7804377A/xx
Priority claimed from NL7901578A external-priority patent/NL7901578A/nl
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2424602A1 publication Critical patent/FR2424602A1/fr
Application granted granted Critical
Publication of FR2424602B1 publication Critical patent/FR2424602B1/fr
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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
    • G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
    • G11B5/3916—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide
    • G11B5/3919—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path
    • G11B5/3922—Arrangements in which the active read-out elements are coupled to the magnetic flux of the track by at least one magnetic thin film flux guide the guide being interposed in the flux path the read-out elements being disposed in magnetic shunt relative to at least two parts of the flux guide structure
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
    • G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
    • G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

TETE MAGNETIQUE MUNIE D'UN ELEMENT A MAGNETORESISTANCE QUI PORTE UNE CONFIGURATION DE BANDES EQUIPOTENTIELLES QUI SONT OBLIQUES PAR RAPPORT A L'AXE LONGITUDINAL DE L'ELEMENT ET QUI SERVENT A INSTALLER UN POINT DE FONCTIONNEMENT ADEQUAT. PAR CES BORDS QUI SONT PARALLELES A L'AXE LONGITUDINAL, LEDIT ELEMENT REPOSE SUR DES CONSTITUANTS EN MATERIAU MAGNETIQUEMENT PERMEABLE. LORS DU FONCTIONNEMENT, UN DE CES CONSTITUANTS EST EN COUPLAGE DIRECT AVEC LE FLUX D'UN MILIEU D'ENREGISTREMENT MAGNETIQUE, TANDIS QU'A TRAVERS UN AUTRE ELEMENT EN MATERIAU MAGNETIQUEMENT PERMEABLE, EN PARTICULIER DU FERRITE, L'AUTRE CONSTITUANT EST EN COUPLAGE DE FLUX INDIRECT AVEC LEDIT MILIEU. APPLICATION AUX APPAREILS D'ENREGISTREMENT ETOU DE REPRODUCTION D'INFORMATION.
FR7910192A 1978-04-25 1979-04-23 Tete magnetique operant par magnetoresistance Expired FR2424602B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7804377A NL7804377A (nl) 1978-04-25 1978-04-25 Magnetoweerstandkop.
NL7901578A NL7901578A (nl) 1979-02-28 1979-02-28 Magnetoweerstandkop.

Publications (2)

Publication Number Publication Date
FR2424602A1 true FR2424602A1 (fr) 1979-11-23
FR2424602B1 FR2424602B1 (fr) 1987-11-27

Family

ID=26645410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910192A Expired FR2424602B1 (fr) 1978-04-25 1979-04-23 Tete magnetique operant par magnetoresistance

Country Status (5)

Country Link
JP (1) JPS54143612A (fr)
CA (1) CA1137627A (fr)
DE (1) DE2916283C2 (fr)
FR (1) FR2424602B1 (fr)
GB (1) GB2019638B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58102324A (ja) * 1981-12-15 1983-06-17 Seiko Epson Corp 磁気ヘツド
JPS58102323A (ja) * 1981-12-15 1983-06-17 Seiko Epson Corp 磁気ヘツド
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
JPS6087417A (ja) * 1983-10-20 1985-05-17 Matsushita Electric Ind Co Ltd 薄膜磁気ヘツド
US4712144A (en) * 1985-08-20 1987-12-08 International Business Machines Corporation Method and apparatus for reading recorded data by a magnetoresistive head
DE69227758T2 (de) * 1991-12-05 1999-07-29 Matsushita Electric Ind Co Ltd Magnetoresistiver Kopf
JPH0817020A (ja) * 1994-06-30 1996-01-19 Sony Corp 磁気抵抗効果型薄膜磁気ヘッド

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235452A1 (fr) * 1973-06-29 1975-01-24 Ibm
DE2536931A1 (de) * 1974-08-20 1976-03-04 Matsushita Electric Ind Co Ltd Magnetkopf
FR2318479A1 (fr) * 1975-07-17 1977-02-11 Philips Nv Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL164410C (nl) * 1974-04-01 1980-12-15 Philips Nv Magnetoweerstand magneetkop.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235452A1 (fr) * 1973-06-29 1975-01-24 Ibm
DE2536931A1 (de) * 1974-08-20 1976-03-04 Matsushita Electric Ind Co Ltd Magnetkopf
FR2318479A1 (fr) * 1975-07-17 1977-02-11 Philips Nv Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PHILIPS TECHNICAL REVIEW, vol.37, nos.2/3, 1977, Eindhoven (NL) *

Also Published As

Publication number Publication date
GB2019638B (en) 1982-04-28
GB2019638A (en) 1979-10-31
DE2916283C2 (de) 1985-07-25
JPS5749965B2 (fr) 1982-10-25
CA1137627A (fr) 1982-12-14
FR2424602B1 (fr) 1987-11-27
DE2916283A1 (de) 1979-11-08
JPS54143612A (en) 1979-11-09

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse