JPH01124911U - - Google Patents
Info
- Publication number
- JPH01124911U JPH01124911U JP1872688U JP1872688U JPH01124911U JP H01124911 U JPH01124911 U JP H01124911U JP 1872688 U JP1872688 U JP 1872688U JP 1872688 U JP1872688 U JP 1872688U JP H01124911 U JPH01124911 U JP H01124911U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- center core
- ferrite
- thin film
- recording medium
- 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
Links
- 239000002184 metal Substances 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Description
第１図は、本考案の磁気消去ヘツドを説明する
ための図である。第２図ないし第３図は、本考案
の磁気消去ヘツドの作用を説明するための図であ
り、第２図は、第１図の部分拡大図に磁束Φの状
態を示した図であり、第３図は、磁化特性と磁気
記録媒体の一点に作用する磁束Φの変化を説明す
るための図である。第４図は、本考案の磁気消去
ヘツドの製造方法を説明するための図である。第
５図は、従来の軟磁性金属薄膜を配したダブルギ
ヤツプ磁気消去ヘツドを説明するための図である
。
１……センターコア、２，２ａ……サイドコア
、３……軟磁性金属薄膜、４……コイル、５……
磁気記録媒体進入側ギヤツプ、６……磁気記録媒
体出口側ギヤツプ、７……バツクコア、８……ガ
ラス、１１……一体化されたサイドコア、１２…
…第１の凹部、１３……第２の凹部、３１……セ
ンターコア、３２，３３……片側コア半体、３４
……コイル、３５……軟磁性金属薄膜。
FIG. 1 is a diagram for explaining the magnetic erasing head of the present invention. 2 and 3 are diagrams for explaining the operation of the magnetic erasing head of the present invention, and FIG. 2 is a partially enlarged view of FIG. 1 showing the state of the magnetic flux Φ, FIG. 3 is a diagram for explaining magnetization characteristics and changes in magnetic flux Φ acting on one point of the magnetic recording medium. FIG. 4 is a diagram for explaining the method of manufacturing the magnetic erasing head of the present invention. FIG. 5 is a diagram for explaining a conventional double-gap magnetic erase head in which a soft magnetic metal thin film is arranged. 1... Center core, 2, 2a... Side core, 3... Soft magnetic metal thin film, 4... Coil, 5...
Magnetic recording medium entrance gap, 6... Magnetic recording medium exit gap, 7... Back core, 8... Glass, 11... Integrated side core, 12...
...First recess, 13...Second recess, 31...Center core, 32, 33...One side core half, 34
... Coil, 35 ... Soft magnetic metal thin film.
Claims (1)
ルギヤツプフエライト磁気消去ヘツドにおいて、
磁気記録媒体出口側の前記センターコアの一側面
に前記フエライトよりも大きな飽和磁束密度を有
する軟磁性金属薄膜を配したことを特徴とする磁
気消去ヘツド。 In a double gap ferrite magnetic erase head with a center core and two side cores,
A magnetic erasing head, characterized in that a soft magnetic metal thin film having a saturation magnetic flux density greater than that of the ferrite is disposed on one side of the center core on the exit side of the magnetic recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1872688U JPH01124911U (en) | 1988-02-17 | 1988-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1872688U JPH01124911U (en) | 1988-02-17 | 1988-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124911U true JPH01124911U (en) | 1989-08-25 |
Family
ID=31233623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1872688U Pending JPH01124911U (en) | 1988-02-17 | 1988-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124911U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198525A (en) * | 1981-05-28 | 1982-12-06 | Canon Inc | Magnetic head |
| JPS57210419A (en) * | 1981-06-22 | 1982-12-24 | Alps Electric Co Ltd | Erasing head |
-
1988
- 1988-02-17 JP JP1872688U patent/JPH01124911U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57198525A (en) * | 1981-05-28 | 1982-12-06 | Canon Inc | Magnetic head |
| JPS57210419A (en) * | 1981-06-22 | 1982-12-24 | Alps Electric Co Ltd | Erasing head |
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