FR2318479A1 - Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information - Google Patents

Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information

Info

Publication number
FR2318479A1
FR2318479A1 FR7621644A FR7621644A FR2318479A1 FR 2318479 A1 FR2318479 A1 FR 2318479A1 FR 7621644 A FR7621644 A FR 7621644A FR 7621644 A FR7621644 A FR 7621644A FR 2318479 A1 FR2318479 A1 FR 2318479A1
Authority
FR
France
Prior art keywords
reading
intended
magnetic head
thin layers
writing information
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.)
Withdrawn
Application number
FR7621644A
Other languages
English (en)
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2318479A1 publication Critical patent/FR2318479A1/fr
Withdrawn legal-status Critical Current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
    • G11B5/3925—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 the two parts being thin films
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
    • 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
    • G11B5/488—Disposition 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
    • G11B5/48—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
    • 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
    • G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR7621644A 1975-07-17 1976-07-15 Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information Withdrawn FR2318479A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7508533A NL7508533A (nl) 1975-07-17 1975-07-17 Dunne film magneetkop voor het lezen en schrijven van informatie.

Publications (1)

Publication Number Publication Date
FR2318479A1 true FR2318479A1 (fr) 1977-02-11

Family

ID=19824167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621644A Withdrawn FR2318479A1 (fr) 1975-07-17 1976-07-15 Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information

Country Status (6)

Country Link
US (1) US4100583A (fr)
JP (1) JPS5212814A (fr)
DE (1) DE2630515A1 (fr)
FR (1) FR2318479A1 (fr)
GB (1) GB1560393A (fr)
NL (1) NL7508533A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424602A1 (fr) * 1978-04-25 1979-11-23 Philips Nv Tete magnetique operant par magnetoresistance
EP0023175A1 (fr) * 1979-07-20 1981-01-28 L.C.C.-C.I.C.E. - Compagnie Europeenne De Composants Electroniques Transducteur magnéto-électrique pour système d'enregistrement magnétique, et système d'enregistrement comportant un tel transducteur
EP0122660A1 (fr) * 1983-04-05 1984-10-24 Koninklijke Philips Electronics N.V. Tête magnétique à bande mince de matériau magnétorésistif utilisée comme élément de lecture

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574326Y2 (fr) * 1976-06-11 1982-01-27
US4388662A (en) * 1981-01-28 1983-06-14 Eastman Kodak Company Thin film magnetoresistive head
US4566050A (en) * 1982-12-30 1986-01-21 International Business Machines Corp. (Ibm) Skew insensitive magnetic read head
JPH0630130B2 (ja) * 1984-08-11 1994-04-20 富士通株式会社 薄膜磁気ヘッドの製造方法
US4698711A (en) * 1985-10-02 1987-10-06 International Business Machines Corporation Simplified, shielded twin-track read/write head structure
US4782415A (en) * 1985-10-02 1988-11-01 International Business Machines Corp. Differential twin track vertical read/write magnetic head structure
JP2613876B2 (ja) * 1986-11-28 1997-05-28 日本電気株式会社 薄膜磁気ヘッドの製造方法
EP0269129B1 (fr) * 1986-11-28 1993-09-22 Nec Corporation Tête magnétique à films minces
JPS63292408A (ja) * 1987-05-26 1988-11-29 Canon Electronics Inc 磁気抵抗効果型磁気ヘッド
US4860138A (en) * 1987-11-12 1989-08-22 International Business Machines Corp. Differentially sensitive single track read/write head design with improved biasing
US5311386A (en) * 1989-06-02 1994-05-10 Digital Equipment Corporation Transducer with improved inductive coupling
US5195005A (en) * 1989-06-02 1993-03-16 Digital Equipment Corporation Tranducer with improved inductive coupling
US5428893A (en) * 1989-06-02 1995-07-04 Quantum Corporation Method of making a transducer with improved inductive coupling
US5184267A (en) * 1989-06-02 1993-02-02 Digital Equipment Corporation Transducer with improved inductive coupling
JP2563597B2 (ja) * 1989-08-04 1996-12-11 松下電器産業株式会社 複合型薄膜磁気ヘッド
JPH0383213A (ja) * 1989-08-24 1991-04-09 Matsushita Electric Ind Co Ltd 薄膜磁気ヘッド
EP0478256B1 (fr) * 1990-09-27 1997-05-14 Kabushiki Kaisha Toshiba Tête magnétique
US5452151A (en) * 1992-05-29 1995-09-19 J. Money & Associates, Inc. Data access module
US5508868A (en) * 1993-01-25 1996-04-16 Read-Rite Corporation Dual element magnetoresistive sensing head having in-gap flux guide and flux closure piece with particular connection of magnetoresistive sensing elements to differential amplifier
US7505233B2 (en) * 2004-12-15 2009-03-17 International Business Machines Corporation Magnetic sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007011A (en) * 1957-07-26 1961-10-31 Magnetic transducing heads

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852617A (en) * 1955-01-14 1958-09-16 Zeiss Ikon Ag Magnet head
US3921217A (en) * 1971-12-27 1975-11-18 Ibm Three-legged magnetic recording head using a magnetorestive element
US3860965A (en) * 1973-10-04 1975-01-14 Ibm Magnetoresistive read head assembly having matched elements for common mode rejection
US3864751A (en) * 1973-10-04 1975-02-04 Ibm Induced bias magnetoresistive read transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007011A (en) * 1957-07-26 1961-10-31 Magnetic transducing heads

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV700/75 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424602A1 (fr) * 1978-04-25 1979-11-23 Philips Nv Tete magnetique operant par magnetoresistance
EP0023175A1 (fr) * 1979-07-20 1981-01-28 L.C.C.-C.I.C.E. - Compagnie Europeenne De Composants Electroniques Transducteur magnéto-électrique pour système d'enregistrement magnétique, et système d'enregistrement comportant un tel transducteur
FR2461995A1 (fr) * 1979-07-20 1981-02-06 Lcc Cice Cie Europ Compo Elect Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur
EP0122660A1 (fr) * 1983-04-05 1984-10-24 Koninklijke Philips Electronics N.V. Tête magnétique à bande mince de matériau magnétorésistif utilisée comme élément de lecture

Also Published As

Publication number Publication date
GB1560393A (en) 1980-02-06
JPS5212814A (en) 1977-01-31
DE2630515A1 (de) 1977-02-03
US4100583A (en) 1978-07-11
NL7508533A (nl) 1977-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse