JPS55117724A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55117724A
JPS55117724A JP2485579A JP2485579A JPS55117724A JP S55117724 A JPS55117724 A JP S55117724A JP 2485579 A JP2485579 A JP 2485579A JP 2485579 A JP2485579 A JP 2485579A JP S55117724 A JPS55117724 A JP S55117724A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic pole
main
pole
tip
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
JP2485579A
Other languages
Japanese (ja)
Inventor
Fukashi Kobayashi
Ryuji Sugita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2485579A priority Critical patent/JPS55117724A/en
Publication of JPS55117724A publication Critical patent/JPS55117724A/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 form easily sharp magnetic distribution tangent to a magnetic recording medium, by positioning the tip part of a magnetic pole, made of a ferromagnetic substance, at a magnetic recording medium side in an even magnetic field provided by an exciting coil of sectional area much greater than that of the magnetic pole. CONSTITUTION:Thickness t1 of main pole 7 is much less than total thickness t2 of main magnetic pole 7 and substrates 9 and 9' made of a non-magnetic substance, and further less than the winding diameter of exciting coil 8. Therefore, at least the tip of main magnetic pole 7 made of a ferromagnetic film is positioned in an even magnetic field. In this constitution, magnetic saturation, even if occurring at the center part, for example, of main magnetic pole 7, exerts no influence on magnetic distribution formed on the tip surface of the magnetic pole, and sharp magnetic distribution is easily formed on the tip surface of main magnetic pole 7.
JP2485579A 1979-03-02 1979-03-02 Magnetic head Pending JPS55117724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2485579A JPS55117724A (en) 1979-03-02 1979-03-02 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2485579A JPS55117724A (en) 1979-03-02 1979-03-02 Magnetic head

Publications (1)

Publication Number Publication Date
JPS55117724A true JPS55117724A (en) 1980-09-10

Family

ID=12149821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2485579A Pending JPS55117724A (en) 1979-03-02 1979-03-02 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55117724A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753814A (en) * 1980-09-17 1982-03-31 Toshiba Corp Vertical magnetization type magnetic head
JPS60258712A (en) * 1985-04-15 1985-12-20 Toshiba Corp Vertically magnetizable magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753814A (en) * 1980-09-17 1982-03-31 Toshiba Corp Vertical magnetization type magnetic head
JPS60258712A (en) * 1985-04-15 1985-12-20 Toshiba Corp Vertically magnetizable magnetic head

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