GB2019638A - Magnetoresistive head - Google Patents

Magnetoresistive head

Info

Publication number
GB2019638A
GB2019638A GB7913826A GB7913826A GB2019638A GB 2019638 A GB2019638 A GB 2019638A GB 7913826 A GB7913826 A GB 7913826A GB 7913826 A GB7913826 A GB 7913826A GB 2019638 A GB2019638 A GB 2019638A
Authority
GB
United Kingdom
Prior art keywords
recording medium
permeable material
magnetically permeable
magnetoresistive head
flux coupling
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
GB7913826A
Other versions
GB2019638B (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
Priority claimed from NL7804377A external-priority patent/NL7804377A/en
Priority claimed from NL7901578A external-priority patent/NL7901578A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2019638A publication Critical patent/GB2019638A/en
Application granted granted Critical
Publication of GB2019638B publication Critical patent/GB2019638B/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
    • 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

An elongate magnetoresistive element 3 bearing a pattern of equipotential strips 12 extending obliquely to its longitudinal axis bridges a gap between two components 6, 7 of magnetically permeable material one 6 of which, in operation, is in direct flux coupling with a magnetic recording medium 2 and the other 7 of which is in flux coupling with the recording medium via a further element 4 of magnetically permeable material, in particular ferrite. <IMAGE>
GB7913826A 1978-04-25 1979-04-20 Magnetoresistive head Expired GB2019638B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7804377A NL7804377A (en) 1978-04-25 1978-04-25 MAGNETO RESISTANCE CUP.
NL7901578A NL7901578A (en) 1979-02-28 1979-02-28 MAGNETIC RESISTANCE HEAD.

Publications (2)

Publication Number Publication Date
GB2019638A true GB2019638A (en) 1979-10-31
GB2019638B GB2019638B (en) 1982-04-28

Family

ID=26645410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913826A Expired GB2019638B (en) 1978-04-25 1979-04-20 Magnetoresistive head

Country Status (5)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215270A1 (en) * 1985-08-20 1987-03-25 International Business Machines Corporation Method and apparatus for reading recorded data by a magnetoresistive head
US5412524A (en) * 1991-12-05 1995-05-02 Matsushita Electric Industrial Co., Ltd. Magneto-resistive head
EP0690438A3 (en) * 1994-06-30 1996-06-19 Sony Corp Magneto-resistance effect thin-film magnetic head

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58102324A (en) * 1981-12-15 1983-06-17 Seiko Epson Corp Magnetic head
JPS58102323A (en) * 1981-12-15 1983-06-17 Seiko Epson Corp Magnetic head
US4535375A (en) * 1983-01-14 1985-08-13 Magnetic Peripherals, Inc. Magnetoresistive head
JPS6087417A (en) * 1983-10-20 1985-05-17 Matsushita Electric Ind Co Ltd Thin film magnetic head

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887944A (en) * 1973-06-29 1975-06-03 Ibm Method for eliminating part of magnetic crosstalk in magnetoresistive sensors
NL164410C (en) * 1974-04-01 1980-12-15 Philips Nv MAGNETIC RESISTANCE MAGNETIC HEAD.
GB1518515A (en) * 1974-08-20 1978-07-19 Matsushita Electric Ind Co Ltd Magnetic heads
NL7508533A (en) * 1975-07-17 1977-01-19 Philips Nv THIN FILM MAGNETIC HEAD FOR READING AND WRITING INFORMATION.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215270A1 (en) * 1985-08-20 1987-03-25 International Business Machines Corporation Method and apparatus for reading recorded data by a magnetoresistive head
US5412524A (en) * 1991-12-05 1995-05-02 Matsushita Electric Industrial Co., Ltd. Magneto-resistive head
US5585985A (en) * 1991-12-05 1996-12-17 Matsushita Electric Industrial Co., Ltd. Magneto-resistive head including a film of hard magnetic material
EP0690438A3 (en) * 1994-06-30 1996-06-19 Sony Corp Magneto-resistance effect thin-film magnetic head
US5617276A (en) * 1994-06-30 1997-04-01 Sony Corporation Magneto-resistance effect thin-film magnetic head having a laminated flux guide of permalloy and titanium films

Also Published As

Publication number Publication date
GB2019638B (en) 1982-04-28
DE2916283C2 (en) 1985-07-25
JPS5749965B2 (en) 1982-10-25
CA1137627A (en) 1982-12-14
FR2424602B1 (en) 1987-11-27
FR2424602A1 (en) 1979-11-23
DE2916283A1 (en) 1979-11-08
JPS54143612A (en) 1979-11-09

Similar Documents

Publication Publication Date Title
DE3475665D1 (en) Read write magnetic head for vertically magnetizable recording medium
JPS54119220A (en) Magnetic head
JPS54131917A (en) Magnetic head
GB2019638A (en) Magnetoresistive head
JPS545417A (en) Magnetic head
KR900016948A (en) Magnetic recording device
JPS56163517A (en) Vertical magnetization recording head
JPS52130614A (en) Magnetic head
JPS6455710A (en) Magnetic head
JPS5737712A (en) Vertical magnetization recording head
JPS5740709A (en) Magnetic recording system
JPS5323608A (en) Magnet ic recording medium
JPS55146632A (en) Magnetic recording medium and magnetic recording and reproducing method
JPS5720962A (en) Magnetic head slider
JPS55100159A (en) Image forming device
JPS53101411A (en) Mr type magnetic head
JPS57162116A (en) Compound magnetic head and its manufacture
JPS54136311A (en) Magnetic recording-reproducing system
JPS5241893A (en) Magnetic recording medium
JPS51148407A (en) Magnetic recording medium
JPS5569470A (en) Image recorder
JPS5634A (en) Magnetic recording medium
JPS57143710A (en) Magnetic head
JPS55146630A (en) Magnetic head
KR960004066B1 (en) Magnetic transducer head structure with reduced leakage between core circuits

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980420