JPS54136814A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS54136814A
JPS54136814A JP4495978A JP4495978A JPS54136814A JP S54136814 A JPS54136814 A JP S54136814A JP 4495978 A JP4495978 A JP 4495978A JP 4495978 A JP4495978 A JP 4495978A JP S54136814 A JPS54136814 A JP S54136814A
Authority
JP
Japan
Prior art keywords
core
writing
slider
magnetic
orthogonal
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
JP4495978A
Other languages
Japanese (ja)
Inventor
Tsuneo Iida
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 JP4495978A priority Critical patent/JPS54136814A/en
Publication of JPS54136814A publication Critical patent/JPS54136814A/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

Landscapes

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

Abstract

PURPOSE:To improve only the rise of writing current at the writing and make possible high density recording by applying a specific DC magnetic field to a part of a magnetic circuit only at the writing thereby obviating hampering of reading. CONSTITUTION:A core 3 wound with a coil 4 is bonded to one lateral side in the central part between the air chanels 2 of a slider 1, whereby a minute gap 5 is formed. In a partly opened magnetic circuit 6 constituted by the slider 1, core 3 and gap 5, other core 8 orthogonal to the core 3 is mounted to the connecting part 7 of the core 3 in the upper part of the slider 1. When at the writing the coil 9 of the core 8 is energized from a d.c. power source 10, the connection part 7 is magnetized in the direction of A or B orthogonal to the magnetic flux C passing there through by the core 8 and a d.c. magnetic field is applied. This turns out that the magnetic flux C became small and magnetic resistance became substantially large, thus the inductance viewed from the signal power source side becomes small and the writing current rises sharply.
JP4495978A 1978-04-17 1978-04-17 Magnetic head Pending JPS54136814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4495978A JPS54136814A (en) 1978-04-17 1978-04-17 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4495978A JPS54136814A (en) 1978-04-17 1978-04-17 Magnetic head

Publications (1)

Publication Number Publication Date
JPS54136814A true JPS54136814A (en) 1979-10-24

Family

ID=12706010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4495978A Pending JPS54136814A (en) 1978-04-17 1978-04-17 Magnetic head

Country Status (1)

Country Link
JP (1) JPS54136814A (en)

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