JPS56153524A - Magnetic resistance head - Google Patents

Magnetic resistance head

Info

Publication number
JPS56153524A
JPS56153524A JP5296680A JP5296680A JPS56153524A JP S56153524 A JPS56153524 A JP S56153524A JP 5296680 A JP5296680 A JP 5296680A JP 5296680 A JP5296680 A JP 5296680A JP S56153524 A JPS56153524 A JP S56153524A
Authority
JP
Japan
Prior art keywords
magnetic
elements
magnetic substance
substance
groove
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
JP5296680A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tokuyado
Takao Ketori
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 JP5296680A priority Critical patent/JPS56153524A/en
Publication of JPS56153524A publication Critical patent/JPS56153524A/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

Landscapes

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

Abstract

PURPOSE:To increase the sensitivity and durability, by surrounding the magnetic resistance (MR) elements of a plurality of arrangements by magnetic substance, providing the magnetic yoke so that the magnetic substance can contact with both the ends of arranging direction of MR elements, and exerting the bias magnetic field to each MR element uniformly. CONSTITUTION:In a head providing a plurality of MR elements 1 having harbour pole electrodes, all the MR elements are enclosed with the magnetic substance 14 having good wear resistance such as ferrite. A groove 17 is provided in the magnetic substance 14 and the MR elements 1 are inserted in the groove 17. At both the ends of arranging direction of the elements 1 of the magnetic substance 14, the magnetic yoke 15 with the energizing winding 16 is magnetically coupled. When a control current is allowed to flow to the winding 16, the distribution of produced magnetic flux is made uniform in the magnetic substance 14, and uniform bias magnetic field is applied to each of the MR elements 1. Since the magnetic substance 14 acts like magnetic shield too, the output at the short wave region can be increased. Thus, the MR heads with good characteristics can be obtained.
JP5296680A 1980-04-23 1980-04-23 Magnetic resistance head Pending JPS56153524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5296680A JPS56153524A (en) 1980-04-23 1980-04-23 Magnetic resistance head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5296680A JPS56153524A (en) 1980-04-23 1980-04-23 Magnetic resistance head

Publications (1)

Publication Number Publication Date
JPS56153524A true JPS56153524A (en) 1981-11-27

Family

ID=12929622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5296680A Pending JPS56153524A (en) 1980-04-23 1980-04-23 Magnetic resistance head

Country Status (1)

Country Link
JP (1) JPS56153524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6288122A (en) * 1985-10-15 1987-04-22 Akai Electric Co Ltd Bias magnetic field impressing method for magneto-resistance effect type magnetic head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6288122A (en) * 1985-10-15 1987-04-22 Akai Electric Co Ltd Bias magnetic field impressing method for magneto-resistance effect type magnetic head

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