JPS5589906A - Magnetic head for erase - Google Patents

Magnetic head for erase

Info

Publication number
JPS5589906A
JPS5589906A JP16122978A JP16122978A JPS5589906A JP S5589906 A JPS5589906 A JP S5589906A JP 16122978 A JP16122978 A JP 16122978A JP 16122978 A JP16122978 A JP 16122978A JP S5589906 A JPS5589906 A JP S5589906A
Authority
JP
Japan
Prior art keywords
magnetic
gap
erase
tape
high coercive
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
JP16122978A
Other languages
Japanese (ja)
Inventor
Shinji Yasuda
Masaru Masumoto
Hiroyuki Oota
Satoshi Miyaguchi
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP16122978A priority Critical patent/JPS5589906A/en
Publication of JPS5589906A publication Critical patent/JPS5589906A/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
    • G11B5/325—Erasing heads using permanent magnets

Abstract

PURPOSE:To obtain the DC erase head which makes easy the erase of high coercive magnetic tape, by forming the closed magnetic circuit in combination of permanent magnet and magnetic core, and making small the sectional area of the gap forming part of core than other sectional areas. CONSTITUTION:In the erase head for high coercive magnetic tape such as metal tape, to the permanent magnet 1, the magnetic core 2 is bonded, in which the width d of the gap is made narrower than other part and the magnetic substance chip 3 is fixed to the gap via the spacer 4. Thus, greater magnetic flux density than that at the magnetic main body 1 is given at the gap since the gap depth d is narrower. The erase of tape of high coercive magnetic force can sufficiently be made even with low cost ferrite less in the magnetic flux density comparatively.
JP16122978A 1978-12-28 1978-12-28 Magnetic head for erase Pending JPS5589906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16122978A JPS5589906A (en) 1978-12-28 1978-12-28 Magnetic head for erase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16122978A JPS5589906A (en) 1978-12-28 1978-12-28 Magnetic head for erase

Publications (1)

Publication Number Publication Date
JPS5589906A true JPS5589906A (en) 1980-07-08

Family

ID=15731076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16122978A Pending JPS5589906A (en) 1978-12-28 1978-12-28 Magnetic head for erase

Country Status (1)

Country Link
JP (1) JPS5589906A (en)

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