CA1014657A - Magnetoresistive recording head - Google Patents

Magnetoresistive recording head

Info

Publication number
CA1014657A
CA1014657A CA159,872A CA159872A CA1014657A CA 1014657 A CA1014657 A CA 1014657A CA 159872 A CA159872 A CA 159872A CA 1014657 A CA1014657 A CA 1014657A
Authority
CA
Canada
Prior art keywords
recording head
magnetoresistive recording
magnetoresistive
head
recording
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
CA159,872A
Other versions
CA159872S (en
Inventor
David A. Thompson
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to CA278,378A priority Critical patent/CA1025113A/en
Priority to CA278,379A priority patent/CA1031860A/en
Application granted granted Critical
Publication of CA1014657A publication Critical patent/CA1014657A/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
    • G11B5/127—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
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters
    • G01T1/10—Luminescent dosimeters
    • G01T1/11—Thermo-luminescent dosimeters
    • G01T1/115—Read-out devices
    • 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
    • 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
CA159,872A 1971-12-27 1972-12-11 Magnetoresistive recording head Expired CA1014657A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA278,378A CA1025113A (en) 1971-12-27 1977-05-13 Shielded thin film magnetoresistive head
CA278,379A CA1031860A (en) 1971-12-27 1977-05-13 Thin film magnetoresistive recording head with shielding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21259171A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
CA1014657A true CA1014657A (en) 1977-07-26

Family

ID=22791669

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,872A Expired CA1014657A (en) 1971-12-27 1972-12-11 Magnetoresistive recording head

Country Status (12)

Country Link
JP (1) JPS5325488B2 (en)
AU (1) AU466336B2 (en)
BE (1) BE792917A (en)
CA (1) CA1014657A (en)
CH (1) CH557073A (en)
DK (1) DK132595C (en)
ES (1) ES408374A1 (en)
FR (1) FR2165974B1 (en)
GB (1) GB1368908A (en)
IT (1) IT967901B (en)
NL (1) NL7217350A (en)
SE (1) SE382512B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813692A (en) * 1972-10-11 1974-05-28 Ibm Internally biased magnetoresistive magnetic transducer
US3887945A (en) * 1973-12-12 1975-06-03 Ibm Head assembly for recording and reading, employing inductive and magnetoresistive elements
JPS5110918A (en) * 1974-07-17 1976-01-28 Matsushita Electric Ind Co Ltd JIKI HETSUDO
JPS5123125A (en) * 1974-08-20 1976-02-24 Matsushita Electric Ind Co Ltd JIKI HETSUDO
JPS5821326B2 (en) * 1974-08-20 1983-04-28 松下電器産業株式会社 Jikihed
JPS5846766B2 (en) * 1974-08-22 1983-10-18 日本電気株式会社 Shuyuuseki head
JPS5165923A (en) * 1974-12-04 1976-06-08 Matsushita Electric Ind Co Ltd JIKI HETSUDO
JPS5165925A (en) * 1974-12-04 1976-06-08 Matsushita Electric Ind Co Ltd JIKI HETSUDO
US3975772A (en) * 1975-06-02 1976-08-17 International Business Machines Corporation Double shielded magnetorestive sensing element
JPS5261305A (en) * 1975-11-17 1977-05-20 Nittoku Kensetsu Kk Method of and apparatus for sinking casttin place concrete pile
US4206958A (en) * 1978-03-27 1980-06-10 The Bendix Corporation Electrical conductor having an integral electrical contact
FR2455330A1 (en) * 1979-04-25 1980-11-21 Cii Honeywell Bull MAGNETIC RESISTANCE TRANSDUCTION DEVICE
US4492997A (en) * 1980-11-28 1985-01-08 Hitachi, Ltd. Reproducing and amplifying circuit for magnetoresistive head
US4435634A (en) * 1982-12-22 1984-03-06 International Business Machines Corporation Thermal printer edge compensation
GB2143071B (en) * 1983-07-09 1987-10-28 Magnetic Components Limited Magnetoresistive transducers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB900652A (en) * 1957-11-06 1962-07-11 Emi Ltd Improvements in or relating to magnetic transducing heads
US3274575A (en) * 1963-08-01 1966-09-20 Koster Heinz Adolf De Transducer having a magneto-resistive bridge circuit
US3493694A (en) * 1966-01-19 1970-02-03 Ampex Magnetoresistive head

Also Published As

Publication number Publication date
CH557073A (en) 1974-12-13
AU5041172A (en) 1974-06-27
SE382512B (en) 1976-02-02
DE2262659A1 (en) 1973-07-12
IT967901B (en) 1974-03-11
JPS4877818A (en) 1973-10-19
DK132595B (en) 1976-01-05
ES408374A1 (en) 1976-01-16
BE792917A (en) 1973-04-16
FR2165974B1 (en) 1976-08-27
FR2165974A1 (en) 1973-08-10
DK132595C (en) 1976-05-31
NL7217350A (en) 1973-06-29
GB1368908A (en) 1974-10-02
JPS5325488B2 (en) 1978-07-27
AU466336B2 (en) 1974-06-27
DE2262659B2 (en) 1975-10-23

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