JPS57208623A - Thin film magnetic head for control signal - Google Patents

Thin film magnetic head for control signal

Info

Publication number
JPS57208623A
JPS57208623A JP9387481A JP9387481A JPS57208623A JP S57208623 A JPS57208623 A JP S57208623A JP 9387481 A JP9387481 A JP 9387481A JP 9387481 A JP9387481 A JP 9387481A JP S57208623 A JPS57208623 A JP S57208623A
Authority
JP
Japan
Prior art keywords
thin film
recording
same time
medium
magneto
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.)
Pending
Application number
JP9387481A
Other languages
Japanese (ja)
Inventor
Masamichi Yamada
Isao Oshima
Masakatsu Saito
Katsuyuki Tanaka
Nobuhiro Tokuyado
Kenji Hayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9387481A priority Critical patent/JPS57208623A/en
Publication of JPS57208623A publication Critical patent/JPS57208623A/en
Pending 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

Landscapes

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

Abstract

PURPOSE:To reduce the generation of Joule heat, by unifying a magneto-resistance effect type reproduced element and a recording thin film inductive head element and at the same time unifying a permanent magnet magnetized in the uniaxial direction at the area close to both said elements. CONSTITUTION:A magneto-resistance effect type reproduced element 2 is unified with a recording thin film inductive head element 16 on a substrate 1. At the same time, a DC bias magnetic field HX is applied to the element 2 vertically to the traveling surface of a recording medium 10, and at the same time a bias magnetic field HY which is equivalent to or larger than the coercive force of the medium 10 is applied at a magnetic gap part of the element 16 and in the traveling direction of the medium 10. For this purpose, a permanent magnet 12 magnetized in the uniaxial direction 13 is provided. Thus the recording current which causes Joule heat can be reduced at the recording side by setting the magnetic fields HX and HY. Furthermore, the process of production is simplified at the reproducing side.
JP9387481A 1981-06-19 1981-06-19 Thin film magnetic head for control signal Pending JPS57208623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9387481A JPS57208623A (en) 1981-06-19 1981-06-19 Thin film magnetic head for control signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9387481A JPS57208623A (en) 1981-06-19 1981-06-19 Thin film magnetic head for control signal

Publications (1)

Publication Number Publication Date
JPS57208623A true JPS57208623A (en) 1982-12-21

Family

ID=14094606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9387481A Pending JPS57208623A (en) 1981-06-19 1981-06-19 Thin film magnetic head for control signal

Country Status (1)

Country Link
JP (1) JPS57208623A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6025977A (en) * 1994-12-30 2000-02-15 International Business Machines Corporation Combined magnetoresistive (MR) read and inductive write head with sunken write coil
US7672081B2 (en) * 2005-08-13 2010-03-02 Samsung Electronics Co., Ltd. Perpendicular magnetic recording head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6025977A (en) * 1994-12-30 2000-02-15 International Business Machines Corporation Combined magnetoresistive (MR) read and inductive write head with sunken write coil
US6156375A (en) * 1994-12-30 2000-12-05 International Business Machines Corporation Method of making read/write magnetoresistive (MR) head with sunken components
US7672081B2 (en) * 2005-08-13 2010-03-02 Samsung Electronics Co., Ltd. Perpendicular magnetic recording head

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