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GB2169434B - Magnetoresistive sensors - Google Patents

Magnetoresistive sensors

Info

Publication number
GB2169434B
GB2169434B GB8528962A GB8528962A GB2169434B GB 2169434 B GB2169434 B GB 2169434B GB 8528962 A GB8528962 A GB 8528962A GB 8528962 A GB8528962 A GB 8528962A GB 2169434 B GB2169434 B GB 2169434B
Authority
GB
United Kingdom
Prior art keywords
magnetoresistive sensors
magnetoresistive
sensors
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
GB8528962A
Other versions
GB8528962D0 (en
GB2169434A (en
Inventor
Desmond James Mapps
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.)
MAGNETIC COMPONENTS Ltd
Original Assignee
MAGNETIC COMPONENTS Ltd
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 GB848429728A external-priority patent/GB8429728D0/en
Priority claimed from GB858504734A external-priority patent/GB8504734D0/en
Application filed by MAGNETIC COMPONENTS Ltd filed Critical MAGNETIC COMPONENTS Ltd
Priority to GB8528962A priority Critical patent/GB2169434B/en
Publication of GB8528962D0 publication Critical patent/GB8528962D0/en
Publication of GB2169434A publication Critical patent/GB2169434A/en
Application granted granted Critical
Publication of GB2169434B publication Critical patent/GB2169434B/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
    • G11B5/398—Specially shaped layers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Magnetic Variables (AREA)
  • Hall/Mr Elements (AREA)
GB8528962A 1984-11-24 1985-11-25 Magnetoresistive sensors Expired GB2169434B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8528962A GB2169434B (en) 1984-11-24 1985-11-25 Magnetoresistive sensors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB848429728A GB8429728D0 (en) 1984-11-24 1984-11-24 Magnetoresistive sensors
GB858504734A GB8504734D0 (en) 1985-02-23 1985-02-23 Magnetoresistive sensors
GB8528962A GB2169434B (en) 1984-11-24 1985-11-25 Magnetoresistive sensors

Publications (3)

Publication Number Publication Date
GB8528962D0 GB8528962D0 (en) 1986-01-02
GB2169434A GB2169434A (en) 1986-07-09
GB2169434B true GB2169434B (en) 1989-09-20

Family

ID=27262529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8528962A Expired GB2169434B (en) 1984-11-24 1985-11-25 Magnetoresistive sensors

Country Status (1)

Country Link
GB (1) GB2169434B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709549B1 (en) * 1993-09-02 1995-10-13 Commissariat Energie Atomique Magnetic flux guide with tabs and magnetoresistive sensor comprising this guide.
FR2713782B1 (en) * 1993-12-14 1996-01-05 Thomson Csf Magnetic sensor with magneto-resistive effect.
US6738234B1 (en) * 2000-03-15 2004-05-18 Tdk Corporation Thin film magnetic head and magnetic transducer
US7170721B2 (en) * 2002-06-25 2007-01-30 Quantum Corporation Method of producing flux guides in magnetic recording heads
US7290325B2 (en) 2004-08-13 2007-11-06 Quantum Corporation Methods of manufacturing magnetic heads with reference and monitoring devices
GB0423676D0 (en) * 2004-10-25 2004-11-24 Arjo Wiggins Ltd Method for reading magnetic data
US7751154B2 (en) 2005-05-19 2010-07-06 Quantum Corporation Magnetic recording heads with bearing surface protections and methods of manufacture

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364348A (en) * 1971-12-22 1974-08-21 Linformatique Comp Int Magneto-resistive devices
US3943570A (en) * 1973-09-28 1976-03-09 Hitachi, Ltd. Semiconductor magnetic head
GB1468551A (en) * 1973-02-20 1977-03-30 Matsushita Electric Ind Co Ltd Magnetic playback transducer
GB1506508A (en) * 1974-12-20 1978-04-05 Matsushita Electric Ind Co Ltd Magnetic head
GB1518515A (en) * 1974-08-20 1978-07-19 Matsushita Electric Ind Co Ltd Magnetic heads
GB2021843A (en) * 1978-05-26 1979-12-05 Sony Corp Magnetic transducer heads
US4477794A (en) * 1981-08-10 1984-10-16 Matsushita Electric Industrial Co., Ltd. Magnetoresistive element
EP0124293A2 (en) * 1983-04-04 1984-11-07 Hewlett-Packard Company Thin film tranducer head for inductive recording and magnetoresistive reading

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1364348A (en) * 1971-12-22 1974-08-21 Linformatique Comp Int Magneto-resistive devices
GB1468551A (en) * 1973-02-20 1977-03-30 Matsushita Electric Ind Co Ltd Magnetic playback transducer
US3943570A (en) * 1973-09-28 1976-03-09 Hitachi, Ltd. Semiconductor magnetic head
GB1518515A (en) * 1974-08-20 1978-07-19 Matsushita Electric Ind Co Ltd Magnetic heads
GB1506508A (en) * 1974-12-20 1978-04-05 Matsushita Electric Ind Co Ltd Magnetic head
GB2021843A (en) * 1978-05-26 1979-12-05 Sony Corp Magnetic transducer heads
US4477794A (en) * 1981-08-10 1984-10-16 Matsushita Electric Industrial Co., Ltd. Magnetoresistive element
EP0124293A2 (en) * 1983-04-04 1984-11-07 Hewlett-Packard Company Thin film tranducer head for inductive recording and magnetoresistive reading

Also Published As

Publication number Publication date
GB8528962D0 (en) 1986-01-02
GB2169434A (en) 1986-07-09

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Legal Events

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