JPS57133513A - Magnetic reluctance effect type recording and reproducing head - Google Patents

Magnetic reluctance effect type recording and reproducing head

Info

Publication number
JPS57133513A
JPS57133513A JP1672981A JP1672981A JPS57133513A JP S57133513 A JPS57133513 A JP S57133513A JP 1672981 A JP1672981 A JP 1672981A JP 1672981 A JP1672981 A JP 1672981A JP S57133513 A JPS57133513 A JP S57133513A
Authority
JP
Japan
Prior art keywords
layers
magnetic
magnetic reluctance
effect type
type 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.)
Granted
Application number
JP1672981A
Other languages
Japanese (ja)
Other versions
JPS6367250B2 (en
Inventor
Tokio Tatsuta
Mitsumasa Oshiki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1672981A priority Critical patent/JPS57133513A/en
Publication of JPS57133513A publication Critical patent/JPS57133513A/en
Publication of JPS6367250B2 publication Critical patent/JPS6367250B2/ja
Granted 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
    • G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read

Landscapes

  • Magnetic Heads (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

PURPOSE:To eliminate the interference to a reproduced signal and at the same time to realize writing, by providing a magnetic reluctance effect element at the edge part of a main magnetic pole in the linear direction. CONSTITUTION:A pair of shielding magnetic layers 7 and 7' are provided vertically to a core 4 of a magnetic head, and a magnetic reluctance element 9 coated with nonmagnetic insulated layers 8 and 8' is buried between the layers 7 and 7'. A permalloy thin film is generally used for the element 9, and the thickness of this film is extremely reduced down to <=0.1mum to increase the electric resistance to some extent. In order to avoid the interference between codes, the layers 7 and 7' are provided at both surfaces of the magnetic head via the layers 8 and 8'. The magnetic flux generated from a coil 5 is made to pass through the layers 7 and 7' to form a concentrated magnetic flux at the edge of the layers 7 and 7', respectively. Then writing is carried out, and reading is performed by the element 9.
JP1672981A 1981-02-06 1981-02-06 Magnetic reluctance effect type recording and reproducing head Granted JPS57133513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1672981A JPS57133513A (en) 1981-02-06 1981-02-06 Magnetic reluctance effect type recording and reproducing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1672981A JPS57133513A (en) 1981-02-06 1981-02-06 Magnetic reluctance effect type recording and reproducing head

Publications (2)

Publication Number Publication Date
JPS57133513A true JPS57133513A (en) 1982-08-18
JPS6367250B2 JPS6367250B2 (en) 1988-12-23

Family

ID=11924345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1672981A Granted JPS57133513A (en) 1981-02-06 1981-02-06 Magnetic reluctance effect type recording and reproducing head

Country Status (1)

Country Link
JP (1) JPS57133513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645315A1 (en) * 1989-03-29 1990-10-05 Commissariat Energie Atomique MAGNETTIC READING HEAD WITH MAGNETORESISTANCE FOR PERPENDICULAR RECORDING AND METHOD OF MAKING SUCH A HEAD

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584025A (en) * 1978-12-18 1980-06-24 Toshiba Corp Vertical magnetization recorder/reproducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584025A (en) * 1978-12-18 1980-06-24 Toshiba Corp Vertical magnetization recorder/reproducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645315A1 (en) * 1989-03-29 1990-10-05 Commissariat Energie Atomique MAGNETTIC READING HEAD WITH MAGNETORESISTANCE FOR PERPENDICULAR RECORDING AND METHOD OF MAKING SUCH A HEAD
US5196976A (en) * 1989-03-29 1993-03-23 Commissariat A L'energie Atomique Magnetoresistance magnetic head for perpendicular recording on a magnetic support

Also Published As

Publication number Publication date
JPS6367250B2 (en) 1988-12-23

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