JPS56107324A - Thin film head - Google Patents

Thin film head

Info

Publication number
JPS56107324A
JPS56107324A JP905080A JP905080A JPS56107324A JP S56107324 A JPS56107324 A JP S56107324A JP 905080 A JP905080 A JP 905080A JP 905080 A JP905080 A JP 905080A JP S56107324 A JPS56107324 A JP S56107324A
Authority
JP
Japan
Prior art keywords
core
track width
recording
thin film
film head
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
JP905080A
Other languages
Japanese (ja)
Inventor
Masahiro Miyazaki
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 JP905080A priority Critical patent/JPS56107324A/en
Publication of JPS56107324A publication Critical patent/JPS56107324A/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
    • G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To avoid the noise produced due to off-track, in case of read-in, by the split of the core part of thin film head floating plane, so that the coercive force of external core toward track width of recording medium is increased than that of the inside core. CONSTITUTION:After forming the mask of Ti on the playback part 5 of inside the floating plane of the core 1 so that the recording track width W0 and playback track width W are obtained for the gap 2 of the core 1 of magnetic disc thin film head, the oxidation region 6 is formed through the processing of oxidation atmosphere at 200 deg.C. Next, Ti mask is removed by wrapping processing. In making new recording through the erasure of recorded region, even if the previous recording is remained, the playback track width W is narrower than the recording track width Wo so that the previous residual information can not be superimposed due to off- track at read-in, and the coercive force of oxidation regions 6, 6 is increased, allowing to avoid the production of noise.
JP905080A 1980-01-29 1980-01-29 Thin film head Pending JPS56107324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP905080A JPS56107324A (en) 1980-01-29 1980-01-29 Thin film head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP905080A JPS56107324A (en) 1980-01-29 1980-01-29 Thin film head

Publications (1)

Publication Number Publication Date
JPS56107324A true JPS56107324A (en) 1981-08-26

Family

ID=11709802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP905080A Pending JPS56107324A (en) 1980-01-29 1980-01-29 Thin film head

Country Status (1)

Country Link
JP (1) JPS56107324A (en)

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