JPS5744218A - Magnetic head of narrow track - Google Patents

Magnetic head of narrow track

Info

Publication number
JPS5744218A
JPS5744218A JP11953980A JP11953980A JPS5744218A JP S5744218 A JPS5744218 A JP S5744218A JP 11953980 A JP11953980 A JP 11953980A JP 11953980 A JP11953980 A JP 11953980A JP S5744218 A JPS5744218 A JP S5744218A
Authority
JP
Japan
Prior art keywords
gap
magnetic
track
magnetic material
magnetic 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
JP11953980A
Other languages
Japanese (ja)
Inventor
Makoto Watanabe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11953980A priority Critical patent/JPS5744218A/en
Publication of JPS5744218A publication Critical patent/JPS5744218A/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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • 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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • G11B5/2654—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing
    • G11B5/2655—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing with all the gaps disposed within the track or "guard band" between tracks, e.g. with erase gaps operative on track edges, with wide erase gap followed by narrow write gap
    • 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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Landscapes

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

Abstract

PURPOSE:To realize the recording with high accuracy of track width and high track density, by enclosing the three directions of a magnetic material of one side that forms a gap with other magnetic naterials via a nonmagnetic conductive filler. CONSTITUTION:A channel-shaped hollow groove having width T' is formed at the part near the medium opposite face of a lower magnetic material 2 attached on a base board 1, and an upper magnetic material 3 is provided at the center part of the groove with a slight gap. Then a nonmagnetic conductive filler 4 is filled into the gap, and a gap G formed by magnetic materials 2 and 3 is used as a magnetic recording/reproducing gap; while gaps G' and G'' across the gap G are used for the tunnel erasing gaps at the edge part respectively. As a result, the tunnel erasing effect is secured at both sides of a track. Thus a magnetic head is obtained with no effect of the crosstalk given from the adjacent track and high resistance to noise.
JP11953980A 1980-08-29 1980-08-29 Magnetic head of narrow track Pending JPS5744218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11953980A JPS5744218A (en) 1980-08-29 1980-08-29 Magnetic head of narrow track

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11953980A JPS5744218A (en) 1980-08-29 1980-08-29 Magnetic head of narrow track

Publications (1)

Publication Number Publication Date
JPS5744218A true JPS5744218A (en) 1982-03-12

Family

ID=14763785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11953980A Pending JPS5744218A (en) 1980-08-29 1980-08-29 Magnetic head of narrow track

Country Status (1)

Country Link
JP (1) JPS5744218A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62256208A (en) * 1986-04-28 1987-11-07 Tdk Corp Structure of gap section of thin-film magnetic head
JPS63153707A (en) * 1986-12-17 1988-06-27 Nec Corp Thin film magnetic head
JPH0191313A (en) * 1987-09-30 1989-04-11 Nec Corp Magnetic head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62256208A (en) * 1986-04-28 1987-11-07 Tdk Corp Structure of gap section of thin-film magnetic head
JPS63153707A (en) * 1986-12-17 1988-06-27 Nec Corp Thin film magnetic head
JPH0191313A (en) * 1987-09-30 1989-04-11 Nec Corp Magnetic head

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