JPS57127915A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57127915A
JPS57127915A JP1266581A JP1266581A JPS57127915A JP S57127915 A JPS57127915 A JP S57127915A JP 1266581 A JP1266581 A JP 1266581A JP 1266581 A JP1266581 A JP 1266581A JP S57127915 A JPS57127915 A JP S57127915A
Authority
JP
Japan
Prior art keywords
ferrite
electromagnetic conversion
polycrystal
magnetic head
single crystal
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
JP1266581A
Other languages
Japanese (ja)
Inventor
Shinji Furuichi
Shunichi Ko
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP1266581A priority Critical patent/JPS57127915A/en
Publication of JPS57127915A publication Critical patent/JPS57127915A/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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • G11B5/1335—Assembling or shaping of elements

Landscapes

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

Abstract

PURPOSE:To achieve high density recording with less missing part of electromagnetic conversion part, by using a composite ferrite taking the electromagnetic conversion part as a single crystal ferrite and other parts as polycrystal ferrite. CONSTITUTION:An electromagnetic conversion part 2 of a magnetic head is formed with an Mn-Zn system single crystal ferrite and other parts are formed with an Mn-Zn system polycrystal ferrite 3. The polished surface of the single and polycrystal ferrites is opposed and pressed with hot pressing. Since the electromagnetic conversion part is made of the single crystal ferrite, break of the electromagnetic conversion gap is very less in comparison with that of the Mn- Zn system polycrystal ferrite to avoid any hindrance for the electromagnetic conversion characteristics. The junction of single and polycrystal is not bonded with glass, no break takes place at the bonding part, allowing to extend the life of a magnetic head.
JP1266581A 1981-01-30 1981-01-30 Magnetic head Pending JPS57127915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1266581A JPS57127915A (en) 1981-01-30 1981-01-30 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1266581A JPS57127915A (en) 1981-01-30 1981-01-30 Magnetic head

Publications (1)

Publication Number Publication Date
JPS57127915A true JPS57127915A (en) 1982-08-09

Family

ID=11811655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1266581A Pending JPS57127915A (en) 1981-01-30 1981-01-30 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57127915A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6214312A (en) * 1985-07-12 1987-01-22 Matsushita Electric Ind Co Ltd Magnetic head
JPH04101905U (en) * 1991-01-31 1992-09-02 信越化学工業株式会社 magnetic head
JPH07167471A (en) * 1993-12-13 1995-07-04 Toshikazu Kawai Suction device for local ventilation and its designing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6214312A (en) * 1985-07-12 1987-01-22 Matsushita Electric Ind Co Ltd Magnetic head
JPH04101905U (en) * 1991-01-31 1992-09-02 信越化学工業株式会社 magnetic head
JPH07167471A (en) * 1993-12-13 1995-07-04 Toshikazu Kawai Suction device for local ventilation and its designing method

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