JPS56111125A - Magnetic resistance head - Google Patents

Magnetic resistance head

Info

Publication number
JPS56111125A
JPS56111125A JP1251180A JP1251180A JPS56111125A JP S56111125 A JPS56111125 A JP S56111125A JP 1251180 A JP1251180 A JP 1251180A JP 1251180 A JP1251180 A JP 1251180A JP S56111125 A JPS56111125 A JP S56111125A
Authority
JP
Japan
Prior art keywords
width
wavelength
depthwise
depth
recorded
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
JP1251180A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tokuyado
Takao Ketori
Isao Oshima
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 JP1251180A priority Critical patent/JPS56111125A/en
Publication of JPS56111125A publication Critical patent/JPS56111125A/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 enable to obtain the high-sensitivity output characteristic even at the short wave length are of recorded wavelength, by forming the depthwise width of the ends connected to the electrode of a magnetic resistance (MR) element to the size close to recorded minimum wavelength and making the depthwise width at the centerlarger than the said width. CONSTITUTION:The depthwise width (de) of both ends 11, 12 connected to the electrodes 2, 3 at the both ends of an MR element 1 is taken near the recorded minimum wavelength and the depthwise width (dm) of the center 13 is formed greater in matching with the maximum recording wavelength. Further, from a surface 14 opposing to the recording medium of the center 13 of the MR element 1, a groove 16 of (dm) in depth is formed from a barber pole electrode 8 de in depth to provide a strip-shaped surface 15. As the example above, the electric depth (de) of the MR element 1 is made small and the magnetic depth (dm) is increased, allowing to increase the output level of the short wavelength recording area and to reduce the difference with the long wavelength area.
JP1251180A 1980-02-06 1980-02-06 Magnetic resistance head Pending JPS56111125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1251180A JPS56111125A (en) 1980-02-06 1980-02-06 Magnetic resistance head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1251180A JPS56111125A (en) 1980-02-06 1980-02-06 Magnetic resistance head

Publications (1)

Publication Number Publication Date
JPS56111125A true JPS56111125A (en) 1981-09-02

Family

ID=11807363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1251180A Pending JPS56111125A (en) 1980-02-06 1980-02-06 Magnetic resistance head

Country Status (1)

Country Link
JP (1) JPS56111125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715224A (en) * 1980-07-01 1982-01-26 Mitsubishi Electric Corp Magnetic resistance effect type magnetic head
JPS57179933A (en) * 1981-04-30 1982-11-05 Canon Inc Magnetoresistance effect type magnetic head and its manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715224A (en) * 1980-07-01 1982-01-26 Mitsubishi Electric Corp Magnetic resistance effect type magnetic head
JPS57179933A (en) * 1981-04-30 1982-11-05 Canon Inc Magnetoresistance effect type magnetic head and its manufacture
JPH0256722B2 (en) * 1981-04-30 1990-12-03 Canon Kk

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