IT1022795B - Testina magnetica di lettura e registrazione - Google Patents

Testina magnetica di lettura e registrazione

Info

Publication number
IT1022795B
IT1022795B IT28323/74A IT2832374A IT1022795B IT 1022795 B IT1022795 B IT 1022795B IT 28323/74 A IT28323/74 A IT 28323/74A IT 2832374 A IT2832374 A IT 2832374A IT 1022795 B IT1022795 B IT 1022795B
Authority
IT
Italy
Prior art keywords
recording head
magnetic reading
reading
magnetic
recording
Prior art date
Application number
IT28323/74A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1022795B publication Critical patent/IT1022795B/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
    • 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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
IT28323/74A 1973-12-12 1974-10-11 Testina magnetica di lettura e registrazione IT1022795B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US424242A US3887945A (en) 1973-12-12 1973-12-12 Head assembly for recording and reading, employing inductive and magnetoresistive elements

Publications (1)

Publication Number Publication Date
IT1022795B true IT1022795B (it) 1978-04-20

Family

ID=23681973

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28323/74A IT1022795B (it) 1973-12-12 1974-10-11 Testina magnetica di lettura e registrazione

Country Status (6)

Country Link
US (1) US3887945A (it)
JP (1) JPS5337206B2 (it)
DE (1) DE2455485A1 (it)
FR (1) FR2254849B1 (it)
GB (1) GB1449989A (it)
IT (1) IT1022795B (it)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945038A (en) * 1971-12-22 1976-03-16 Compagnie Internationale Pour L'informatique Read-write magnetoresistive transducer having a plurality of MR elements
US3940797A (en) * 1973-09-20 1976-02-24 International Business Machines Corporation Shielded magnetoresistive magnetic transducer
GB1518515A (en) * 1974-08-20 1978-07-19 Matsushita Electric Ind Co Ltd Magnetic heads
US4068272A (en) * 1974-11-19 1978-01-10 Matsushita Electric Industrial Co., Ltd. High sensitivity magnetic head using magneto-resistive effect element
US4071868A (en) * 1974-12-20 1978-01-31 Matsushita Electric Industrial Co., Ltd. Narrow track MR head with side shields
JPS6112593Y2 (it) * 1975-09-10 1986-04-19
US4130847A (en) * 1977-03-31 1978-12-19 International Business Machines Corporation Corrosion resistant thin film head assembly and method for making
US4321641A (en) * 1977-09-02 1982-03-23 Magnex Corporation Thin film magnetic recording heads
FR2455330A1 (fr) * 1979-04-25 1980-11-21 Cii Honeywell Bull Dispositif magnetique de transduction a magnetoresistances
US4255772A (en) * 1979-06-29 1981-03-10 International Business Machines Corporation Read/write magnetic head assembly with magnetoresistive sensor
JPS5613513A (en) * 1979-07-11 1981-02-09 Matsushita Electric Ind Co Ltd Magnetic head and its manufacture
JPS5616932A (en) * 1979-07-18 1981-02-18 Olympus Optical Co Ltd Recording and reproducing head for vertical magnetic recording and manufacture of this recording and reproducing head and recording and reproducing unit using this recording and reproducing head
US4555740A (en) * 1983-04-04 1985-11-26 Hewlett-Packard Company Thin film transducer head for inductive recording and magnetoresistive reading
EP0185289B1 (de) * 1984-12-21 1988-07-27 Siemens Aktiengesellschaft Dünnfilm-Magnetkopf auf einem nicht-magnetischen Substrat zur senkrechten Magnetisierung
US4881143A (en) * 1988-01-19 1989-11-14 Hewlett-Packard Company Compensated magneto-resistive read head
US4970621A (en) * 1988-09-09 1990-11-13 Hewlett-Packard Company Demagnetization of thin film magnetic recording transducers utilizing a decreasing AC current
JPH02168408A (ja) * 1988-09-19 1990-06-28 Hitachi Ltd 記録再生用磁気ヘッドおよびその製造方法
US5023738A (en) * 1989-12-18 1991-06-11 Seagate Technology, Inc. Corrosion resistant magnetic recording read
FR2657189B1 (fr) * 1990-01-18 1993-12-31 Commissariat A Energie Atomique Tete magnetique de lecture et d'ecriture a element magnetoresistant.
JPH05114119A (ja) * 1991-10-21 1993-05-07 Fujitsu Ltd 磁気抵抗効果型磁気ヘツド
US5311385A (en) * 1991-12-18 1994-05-10 Minnesota Mining And Manufacturing Company Magnetoresistive head with integrated bias and magnetic shield layer
US5331493A (en) * 1992-08-21 1994-07-19 Minnesota Mining And Manufacturing Company Bidirectional thin-film magnetoresistive tape head assembly
US5446613A (en) * 1994-02-28 1995-08-29 Read-Rite Corporation Magnetic head assembly with MR sensor
US5435053A (en) * 1994-03-02 1995-07-25 International Business Machines Corporation Simplified method of making merged MR head
JP2015089215A (ja) 2013-10-30 2015-05-07 株式会社デンソー 回転電機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493694A (en) * 1966-01-19 1970-02-03 Ampex Magnetoresistive head
BE792917A (fr) * 1971-12-27 1973-04-16 Ibm Tete de transduction magnetique
US3814863A (en) * 1972-10-11 1974-06-04 Ibm Internally biased magnetoresistive magnetic transducer
US3813692A (en) * 1972-10-11 1974-05-28 Ibm Internally biased magnetoresistive magnetic transducer

Also Published As

Publication number Publication date
GB1449989A (en) 1976-09-15
FR2254849A1 (it) 1975-07-11
JPS5093127A (it) 1975-07-25
DE2455485A1 (de) 1975-06-19
US3887945A (en) 1975-06-03
JPS5337206B2 (it) 1978-10-07
FR2254849B1 (it) 1976-10-22

Similar Documents

Publication Publication Date Title
IT1022795B (it) Testina magnetica di lettura e registrazione
IT1039310B (it) Testina magnetica per la registrazione e la lettura di informazioni
BE820322A (fr) Tete de lecture magnetique a elements magneto-resistifs
SE414840B (sv) Anordning for uppteckning och avlesning av information
IT1038937B (it) Testina magnetica per la lettura e la registrazione di informazioni
SE396253B (sv) Magnethuvud
SE400404B (sv) Magnethuvud
AT352426B (de) Magnetbandaufnahme- und/oder wiedergabean- ordnung
IT991645B (it) Testina magnetica
SE400403B (sv) Magnethuvud
BE823013A (fr) Objet d'enregistrement magnetique d'informations superposees
SE406828B (sv) Medium for magnetisk uppteckning
IT1015220B (it) Testina magnetica di lettura regi strazione e relativo procedimen to di fabbricazione
IT999365B (it) Testina perfezionata per registratori magnetici
AT348035B (de) Magnetaufzeichnungs- und wiedergabegeraet
CH539909A (de) Magnetischer Aufzeichnungsträger
BE761579A (fr) Milieu d'enregistrement magnetique
SE387459B (sv) Medium for magnetisk uppteckning
FR2288369A1 (fr) Enregistrement magnetique
BE771786A (fr) Tete d'enregistrement magnetique
IT1041037B (it) Macchina di registrazione e riproduzione
IT1022571B (it) Testina magnetica di cancellazione
BE790000A (fr) Tete d'enregistrement et de lecture magnetiques
BR7405986D0 (pt) Fita de gravacao magnetica
BE807421A (fr) Supports d'enregistrements magnetiques