JPS57143710A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS57143710A
JPS57143710A JP2779581A JP2779581A JPS57143710A JP S57143710 A JPS57143710 A JP S57143710A JP 2779581 A JP2779581 A JP 2779581A JP 2779581 A JP2779581 A JP 2779581A JP S57143710 A JPS57143710 A JP S57143710A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic pole
pedestal
area
main magnetic
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
JP2779581A
Other languages
Japanese (ja)
Inventor
Atsunori Hayakawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP2779581A priority Critical patent/JPS57143710A/en
Publication of JPS57143710A publication Critical patent/JPS57143710A/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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Landscapes

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

Abstract

PURPOSE:To widen an opposing area of a main magnetic pole to a pedestal, to reduce magnetic reluctance in this area, and to raise the reproducing sensitivity, by providing an auxiliary core on the base part side of the main magnetic pole. CONSTITUTION:An auxiliary core 16 consisting of a magnetic material having high magnetic permeability (example: Ni-Zn ferrite, etc.) is provided on a magnetic connecting part with a magnetic material block (example: that which consists of Ni-Zn ferrite, etc.) 11 of a main magnetic pole (example: that which consists of a magnetic thin film of permalloy, etc.) 14, that is to say, the end part for installing it to a pedestal 12. This auxiliary core is constituted so that it is not extended up to the end part of the opposite side of the connecting end part to the pedestal 12 of the main magnetic pole 14, and the end part of the opposite side of the magnetic connecting part to the magnetic block body 11 of the main magnetic pole 14, that is to say, the end of the tip part is faced to the slide surface to the magnetic medium. In this way, it is possible to widen a substantial opposed area to the pedestal of the main magnetic pole 14, to reduce magnetic reluctance in this area, and to raise the reproducing sensitivity.
JP2779581A 1981-02-27 1981-02-27 Magnetic head Pending JPS57143710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2779581A JPS57143710A (en) 1981-02-27 1981-02-27 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2779581A JPS57143710A (en) 1981-02-27 1981-02-27 Magnetic head

Publications (1)

Publication Number Publication Date
JPS57143710A true JPS57143710A (en) 1982-09-06

Family

ID=12230903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2779581A Pending JPS57143710A (en) 1981-02-27 1981-02-27 Magnetic head

Country Status (1)

Country Link
JP (1) JPS57143710A (en)

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