IT8125274A0 - Transduttore magnetoresistente di lettura d'un supporto di registrazione ad alta densita'd'informazioni. - Google Patents

Transduttore magnetoresistente di lettura d'un supporto di registrazione ad alta densita'd'informazioni.

Info

Publication number
IT8125274A0
IT8125274A0 IT8125274A IT2527481A IT8125274A0 IT 8125274 A0 IT8125274 A0 IT 8125274A0 IT 8125274 A IT8125274 A IT 8125274A IT 2527481 A IT2527481 A IT 2527481A IT 8125274 A0 IT8125274 A0 IT 8125274A0
Authority
IT
Italy
Prior art keywords
magnetoresisting
transducer
reading
recording media
high information
Prior art date
Application number
IT8125274A
Other languages
English (en)
Other versions
IT1200555B (it
Inventor
Jacques Desserre
Michel Helle
Original Assignee
Cii Honeywell Bull
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 Cii Honeywell Bull filed Critical Cii Honeywell Bull
Publication of IT8125274A0 publication Critical patent/IT8125274A0/it
Application granted granted Critical
Publication of IT1200555B publication Critical patent/IT1200555B/it

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
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • G11B5/11—Shielding of head against electric or magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Heads (AREA)
IT25274/81A 1980-11-27 1981-11-25 Transduttore magnetoresistente di lettura d'un supporto di registrazione ad alta densita d'informazioni IT1200555B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8025198A FR2494952B1 (fr) 1980-11-27 1980-11-27 Transducteur magnetoresistant de lecture d'un support d'enregistrement a haute densite d'informations

Publications (2)

Publication Number Publication Date
IT8125274A0 true IT8125274A0 (it) 1981-11-25
IT1200555B IT1200555B (it) 1989-01-27

Family

ID=9248409

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25274/81A IT1200555B (it) 1980-11-27 1981-11-25 Transduttore magnetoresistente di lettura d'un supporto di registrazione ad alta densita d'informazioni

Country Status (6)

Country Link
US (1) US4432028A (it)
JP (1) JPS57120222A (it)
DE (1) DE3146932A1 (it)
FR (1) FR2494952B1 (it)
GB (1) GB2089097B (it)
IT (1) IT1200555B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589041A (en) * 1982-08-30 1986-05-13 International Business Machines Corporation Differential magnetoresistive sensor for vertical recording
CA1249658A (en) * 1984-10-31 1989-01-31 Yorinobu Yoshisato Magnetic head and process for producing same
JPS62205511A (ja) * 1986-03-05 1987-09-10 Fuji Photo Film Co Ltd 磁気ヘツド特性測定装置
US5323285A (en) * 1992-06-23 1994-06-21 Eastman Kodak Company Shielded dual element magnetoresistive reproduce head exhibiting high density signal amplification
US5757183A (en) * 1996-07-26 1998-05-26 Eastman Kodak Company Device to shield a magnetic field in a given plane
WO1998016921A1 (en) * 1996-10-15 1998-04-23 Seagate Technology, Inc. Magnetoresistive head having shorted shield configuration for inductive pickup minimization
US5768070A (en) * 1997-05-14 1998-06-16 International Business Machines Corporation Horizontal thin film write, MR read head
US6680829B2 (en) * 2000-09-13 2004-01-20 Seagate Technology Llc MR structures for high areal density reader by using side shields
US20060250726A1 (en) * 2005-05-09 2006-11-09 Hitachi Global Storage Technologies Netherlands B. V. Shield structure in magnetic recording heads

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1114335B (de) * 1955-04-26 1961-09-28 Standard App Fabrik G M B H Magnetkopf
US3222754A (en) * 1959-12-23 1965-12-14 Ibm Method of making magnetic transducer head
JPS548726Y1 (it) * 1969-10-25 1979-04-21
FR2218611B1 (it) * 1973-02-21 1976-09-10 Cii
US3860965A (en) * 1973-10-04 1975-01-14 Ibm Magnetoresistive read head assembly having matched elements for common mode rejection
JPS5172419A (ja) * 1974-12-20 1976-06-23 Matsushita Electric Ind Co Ltd Jikihetsudo
US4071868A (en) * 1974-12-20 1978-01-31 Matsushita Electric Industrial Co., Ltd. Narrow track MR head with side shields
JPS56165924A (en) * 1980-05-24 1981-12-19 Matsushita Electric Ind Co Ltd Magnetic head

Also Published As

Publication number Publication date
FR2494952B1 (fr) 1986-06-06
GB2089097A (en) 1982-06-16
DE3146932A1 (de) 1982-07-15
FR2494952A1 (fr) 1982-05-28
GB2089097B (en) 1985-06-05
IT1200555B (it) 1989-01-27
JPS57120222A (en) 1982-07-27
US4432028A (en) 1984-02-14

Similar Documents

Publication Publication Date Title
IT7829878A0 (it) Piattaforma ad autostentazione comprendente almeno un trasduttore magnetico di lettura/scrittura di un supporto di informazione.
IT1074335B (it) Apparecchiatura per la lettura di un supporto di registrazione con una struttura d'informazione atta ad essere letta otticamente
GB2101788B (en) Recording medium and information record
DE3583599D1 (de) Informationsaufzeichnungsmedium.
JPS56101652A (en) Method of writing information on optically readable disk type recording media
BE886992A (fr) Porteur d'information, dispositif pour sa fabrication et dispositif pour l'enregistrement et la lecture
ES511506A0 (es) "un aparato para grabar y leer pistas de informacion en una superficie con informacion de un portador de registro".
IT1206372B (it) Metodo di scrittura di informazioni relativo ai difetti di un supporto di registrazione magnetica.
BE850782A (fr) Dispositif pour la lecture d'un support d'enregistrement dans lequel est enregistree de l'information
DE3783296T2 (de) Opto-magnetisches signalwiedergabegeraet zum lesen von information, aufgezeichnet auf einem aufzeichnungsmedium durch differentiale auswertung, gebrauchmachend von einem magneto-optischen effekt.
GB2084786B (en) Variable sensitivity optical recording medium and information record
DE3853640D1 (de) Informationsaufzeichnungsmedium.
FR2529701B1 (fr) Cassette pour disque d'enregistrement et de lecture d'informations
FR2575577B1 (fr) Transducteur magnetique d'ecriture/lecture pour enregistrement perpendiculaire
IT8468144A1 (it) Dispositivo di registrazione e riproduzione di dati su un supporto magnetico.
DE3577491D1 (de) Optisches informationsaufzeichnungsmedium.
KR860002007U (ko) 기록 매체 수용 카세트
ES510672A0 (es) "un aparato reproductor para senales de informacion registradas en un portador de registro en forma de una cinta".
FR2517099B1 (fr) Support d'enregistrement magnetique
JPS5555483A (en) Information writing on magnetic record medium
FR2506982B1 (fr) Dispositif pour l'enregistrement et/ou la lecture d'un support d'information
IT1109792B (it) Metodo ed apparato per l'indirizzamento e/o la localizzazione di informazioni su di un supporto di registrazioni
FR2502375B1 (fr) Transducteur magnetoresistant de lecture d'informations a tres haute densite
IT8125274A0 (it) Transduttore magnetoresistente di lettura d'un supporto di registrazione ad alta densita'd'informazioni.
FR2547095B1 (fr) Support d'enregistrement rotatif et appareil pour reproduire l'information enregistree a partir de ce support