JPS55113121A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS55113121A
JPS55113121A JP2027179A JP2027179A JPS55113121A JP S55113121 A JPS55113121 A JP S55113121A JP 2027179 A JP2027179 A JP 2027179A JP 2027179 A JP2027179 A JP 2027179A JP S55113121 A JPS55113121 A JP S55113121A
Authority
JP
Japan
Prior art keywords
track
width
core
difference
level
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.)
Granted
Application number
JP2027179A
Other languages
Japanese (ja)
Other versions
JPS6242329B2 (en
Inventor
Makoto Watanabe
Takashi Kaneko
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 JP2027179A priority Critical patent/JPS55113121A/en
Publication of JPS55113121A publication Critical patent/JPS55113121A/en
Publication of JPS6242329B2 publication Critical patent/JPS6242329B2/ja
Granted 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
    • G11B5/2452—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 where the dimensions of the effective gap are controlled

Landscapes

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

Abstract

PURPOSE:To simplify recording of high track density with a little cross talk, by making effective track width in signal read mode less than that in write mode by giving a difference in level at both side parts of the track surface of the core of a magnetic head. CONSTITUTION:Ring type magnetic head core 1, which consists of magnetic-substance core blocks 2 and 3 butted by a fixture such as glass with gap 4 given, is provided with coil 6. Difference 5b in level is provided on both sides of track surface 5 including gap 4 of core 1. Width (l) of difference 5b in level depends upon a track pitch, width L in track-surface center 5a of core 1, and a setting error of the head in the track-width direction on a tape, etc. Further, height (h) of difference 5b in level is preferably as high as possible, but should be less than an integer greater than gap length (g). Thus, L+2l is effective track width in write mode and only L is the effective track width in read mode.
JP2027179A 1979-02-23 1979-02-23 Magnetic head Granted JPS55113121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2027179A JPS55113121A (en) 1979-02-23 1979-02-23 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2027179A JPS55113121A (en) 1979-02-23 1979-02-23 Magnetic head

Publications (2)

Publication Number Publication Date
JPS55113121A true JPS55113121A (en) 1980-09-01
JPS6242329B2 JPS6242329B2 (en) 1987-09-08

Family

ID=12022514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2027179A Granted JPS55113121A (en) 1979-02-23 1979-02-23 Magnetic head

Country Status (1)

Country Link
JP (1) JPS55113121A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112015A (en) * 1974-02-12 1975-09-03
JPS51128514A (en) * 1975-05-01 1976-11-09 Furukawa Electric Co Ltd:The Wear-resistant magnetic head core

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112015A (en) * 1974-02-12 1975-09-03
JPS51128514A (en) * 1975-05-01 1976-11-09 Furukawa Electric Co Ltd:The Wear-resistant magnetic head core

Also Published As

Publication number Publication date
JPS6242329B2 (en) 1987-09-08

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