JPH0298803A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPH0298803A JPH0298803A JP63252449A JP25244988A JPH0298803A JP H0298803 A JPH0298803 A JP H0298803A JP 63252449 A JP63252449 A JP 63252449A JP 25244988 A JP25244988 A JP 25244988A JP H0298803 A JPH0298803 A JP H0298803A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- ferrite single
- plane
- single crystal
- 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.)
- Granted
Links
- 239000013078 crystal Substances 0.000 claims abstract description 54
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 53
- 239000010409 thin film Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 21
- 230000004907 flux Effects 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高密度での磁気記録及び再生を行うための磁気
ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head for performing high-density magnetic recording and reproduction.
第４図に示すように、従来、１対のフェライト単結晶コ
アト１におけるギャップ突き合わせ面２・２にそれぞれ
金属磁性薄膜３・３を形成してなる、フェライトと金属
磁性薄膜との複合磁気ヘッドが知られている。この磁気
ヘッドにおいては、通常、フェライト単結晶コア１の主
磁路形成面４が（１１０）面又はその近傍となるように
構成されている。As shown in FIG. 4, conventionally, a composite magnetic head of ferrite and metal magnetic thin film is formed by forming metal magnetic thin films 3, 3 on gap abutting surfaces 2, 2 of a pair of ferrite single crystal cores 1, respectively. Are known. This magnetic head is usually configured such that the main magnetic path forming plane 4 of the ferrite single crystal core 1 is the (110) plane or the vicinity thereof.
更に、上記のフェライト単結晶コアト１は、特開昭５６
−１６３５１８号公報のように、フェライト単結晶コア
のみで形成された磁気ヘッドと同様に、磁気ギャップ７
に垂直な平面８内において、く１００〉方向Ｂと、磁気
ギャップ７を含みテープ摺動面５に垂直な平面９との成
す角βが、５〜４０’もしくは８５〜１２０°となるよ
うに設定されている。そのような磁気ヘッドの一例とし
て角βが約３５°、テープ摺動面５が（２１１）面又は
その近傍、ギャップ突き合わせ面２及びそれと平行なコ
ア側面６が（１１１）面又はその近傍となるように構成
した場合、磁気ヘッドにおけるフェライト単結晶コアト
１に塩酸等を使用してエツチングを施せば、コア側面６
・６のそれぞれに、１つの頂点１０ａのみがテープ摺動
面５と反対側に位置する正三角形のエッチピット１０を
観察することができる。Furthermore, the above-mentioned ferrite single crystal core 1 is disclosed in Japanese Patent Application Laid-Open No.
Similar to the magnetic head formed only with a ferrite single crystal core as in Japanese Patent No. 163518, the magnetic gap 7
In a plane 8 perpendicular to It is set. As an example of such a magnetic head, the angle β is about 35°, the tape sliding surface 5 is at or near the (211) plane, and the gap abutting surface 2 and the core side surface 6 parallel thereto are at or near the (111) plane. In this case, if the ferrite single crystal core 1 in the magnetic head is etched using hydrochloric acid or the like, the core side surface 6 can be etched.
- Etch pits 10 having an equilateral triangular shape in which only one apex 10a is located on the opposite side of the tape sliding surface 5 can be observed in each of the etch pits 6.
上記の磁気ヘッドのように、角βを５〜４０゜もしくは
８５〜１２０°となるように設定すれば、特開昭５６−
１６３５１８号公報に記載されたように、フェライト単
結晶コアのみで構成された磁気ヘッドにおいては、記録
再生特性は良好なものとなる。If the angle β is set to 5 to 40 degrees or 85 to 120 degrees as in the above magnetic head,
As described in Japanese Patent No. 163518, a magnetic head composed only of a ferrite single crystal core has good recording and reproducing characteristics.
特に、特公昭６１−６４４３号公報に記載された如く、
エッチピット１０における１つの頂点１０ ａのみがテ
ープ摺動面５と反対側に位置するように〈１００）方向
Ｂを設定すれば、フェライト単結晶コアのみで構成され
た磁気ヘッドの記録再生特性は良好なものとなる。その
ため、上記の複合磁気ヘッドにおいては、フェライト単
結晶コアト１が動作上の重要な役割を担うことになるの
で、記録再生時の磁束がフェライト単結晶コアト１内を
流れるようになる。In particular, as described in Japanese Patent Publication No. 61-6443,
If the <100) direction B is set so that only one vertex 10a of the etch pit 10 is located on the opposite side of the tape sliding surface 5, the recording and reproducing characteristics of a magnetic head composed only of a ferrite single crystal core will be It will be good. Therefore, in the above-described composite magnetic head, the ferrite single crystal core 1 plays an important role in operation, so that the magnetic flux during recording and reproduction flows through the ferrite single crystal core 1.
ところで、上記の複合磁気ヘッドにおいては、記録再生
時に磁気テープと接触する磁気ギャップ７の近傍には金
属磁性薄膜３・３が配置されているが、上記のように、
記録再生時の磁束がフェライト単結晶コアト１を通るの
で、記録再生時に磁束は金属磁性薄膜３・３内をその厚
さ方向Ｃに流れるものである。ところが、金属磁性薄膜
３・３の厚さ方向Ｃの透磁率は極めて小さいため、磁気
テープに記録再生を行う金属磁性薄膜３・３の部位での
磁気抵抗が大きくなり、記録再生の効率の低下を招いて
いた。By the way, in the above composite magnetic head, the metal magnetic thin films 3 are arranged near the magnetic gap 7 that contacts the magnetic tape during recording and reproduction, but as mentioned above,
Since the magnetic flux during recording and reproduction passes through the ferrite single crystal core 1, the magnetic flux flows within the metal magnetic thin films 3 in the thickness direction C during recording and reproduction. However, since the magnetic permeability of the metal magnetic thin films 3, 3 in the thickness direction C is extremely small, the magnetic resistance increases at the portion of the metal magnetic thin films 3, 3 that perform recording and reproduction on the magnetic tape, resulting in a decrease in recording and reproduction efficiency. was inviting.
本明細書の特許請求の範囲の欄における請求項第１項の
磁気ヘッドは、上記の課題を解決するために、１対のフ
ェライト単結晶コアと、各フェライト単結晶コアにおけ
るギャップ突き合わせ面近傍に形成された金属磁性薄膜
とを有する磁気ヘッドにおいて、フェライト単結晶コア
の（１１０）面が主磁路形成面とほぼ平行とされるとと
もに、該（１１０）面内に存在する＜ｉｏｏ＞方向と、
磁気ギャップを含み、かつ、テープ摺動面と垂直な平面
との成す角が、０〜５°もしくは４０〜８５°もしくは
１２０〜１８０°の範囲となるように構成されているこ
とを特徴とするものである。In order to solve the above problem, the magnetic head according to claim 1 in the claims column of this specification includes a pair of ferrite single crystal cores and a gap in the vicinity of the abutting surface of each ferrite single crystal core. In the magnetic head having the formed metal magnetic thin film, the (110) plane of the ferrite single crystal core is approximately parallel to the main magnetic path forming plane, and the <ioo> direction existing within the (110) plane ,
It includes a magnetic gap and is configured such that the angle formed by the tape sliding surface and a perpendicular plane is in the range of 0 to 5 degrees, 40 to 85 degrees, or 120 to 180 degrees. It is something.
又、請求項第２項の磁気ヘッドは、上記請求項第１項の
磁気ヘッドにおいて、上記（１１０）面内に存在する＜
ｉｏｏ＞方向と、磁気ギャップを含み、かつ、テープ摺
動面と垂直な平面との成す角が約１４５°となるように
構成されていることを特徴とするものである。Further, in the magnetic head according to claim 2, in the magnetic head according to claim 1, the magnetic head exists in the (110) plane.
ioo> direction and a plane that includes the magnetic gap and is perpendicular to the tape sliding surface is approximately 145°.
上記の構成によれば、フェライト単結晶コアと金属磁性
薄膜とで構成した磁気ヘッドにおけるフェライト単結晶
コアの部分の磁気記録特性は、特開昭５６−１６３５１
８号公報に記載されたようなフェライト単結晶コアのみ
からなる磁気ヘッドに比して格段に劣ったものとなる。According to the above configuration, the magnetic recording characteristics of the ferrite single crystal core portion of the magnetic head composed of the ferrite single crystal core and the metal magnetic thin film are disclosed in Japanese Patent Laid-Open No. 56-16351.
This is significantly inferior to a magnetic head consisting only of a ferrite single crystal core as described in Publication No. 8.
このため、本発明のフェライト単結晶コアと金属磁性薄
膜からなる磁気ヘッドにおいては、記録再生時の磁束は
フェライト単結晶コア内を流れにくくなるので、主とし
て金属磁性薄膜内をその面内方向、つまり、厚さ方向と
垂直な方向に流れるようになる。その場合、金属磁性薄
膜の面内方向の透磁率は厚さ方向よりかなり高いため、
従来の複合磁気ヘッドと比べて優れた記録再生特性が得
られるようになる。Therefore, in the magnetic head composed of a ferrite single crystal core and a metal magnetic thin film according to the present invention, the magnetic flux during recording and reproduction becomes difficult to flow inside the ferrite single crystal core, so that it mainly flows inside the metal magnetic thin film in its in-plane direction, that is. , it begins to flow in a direction perpendicular to the thickness direction. In that case, the magnetic permeability in the in-plane direction of the metal magnetic thin film is much higher than in the thickness direction, so
Superior recording and reproducing characteristics can be obtained compared to conventional composite magnetic heads.
なお、フェライト単結晶コアの主磁路形成面を（１１０
）面取外の方向とすることによっても、フェライト単結
晶コアの部分での磁気記録再生特性を従来に比して劣っ
たものとすることができるが、その場合、主磁路形成面
として最も透磁率の高い面である（１１０）面取外を用
いることになる。このように、フェライト単結晶コアの
（１１０）面取外を主磁路形成面として用いた複合磁気
ヘッドにおいては、磁気ヘッド全体の磁気抵抗が大きく
なり、磁気記録再生特性が劣化することになる。Note that the main magnetic path forming surface of the ferrite single crystal core is (110
) The magnetic recording and reproducing characteristics of the ferrite single crystal core can be made inferior to the conventional one by chamfering in the non-chamfering direction, but in that case, the main magnetic path forming surface is the most A (110) chamfer, which is a surface with high magnetic permeability, will be used. In this way, in a composite magnetic head in which the (110) chamfer of a ferrite single crystal core is used as the main magnetic path forming surface, the magnetic resistance of the entire magnetic head increases, and the magnetic recording and reproducing characteristics deteriorate. .
それに対し、本発明の複合磁気ヘッドにおいては、高透
磁率面であるフェライト単結晶コアの（１１０）面を主
磁路形成面として用い、磁気ヘッド全体の磁気抵抗を小
さく保ったまま、フェライト単結晶コアへの磁気記録再
生時の磁束の流入を抑制し、金属磁性薄膜を有効に動作
させることができる。In contrast, in the composite magnetic head of the present invention, the (110) plane of the ferrite single crystal core, which is a high magnetic permeability plane, is used as the main magnetic path forming plane, and the magnetic resistance of the entire magnetic head is kept small. It is possible to suppress the inflow of magnetic flux into the crystal core during magnetic recording and reproduction, and to effectively operate the metal magnetic thin film.
〔実施例］
本発明の一実施例を第１図乃至第３図に基づいて説明す
れば、以下の通りである。[Example] An example of the present invention will be described below based on FIGS. 1 to 3.
第１図に示すように、磁気ヘッドは、１対のフェライト
単結晶コア１１・１１を備え、一方のフェライト単結晶
コア１１には内部巻線溝１１ａが設けられている。各フ
ェライト単結晶コア１１におけるギャップ突き合わせ面
１２・１２にそれぞれ高透磁率、高飽和磁束密度を有す
る金属磁性薄１１！ １３が形成され、金属磁性薄膜１
３・１３内士が磁気ギャップ１４を挟んでガラス１５等
により接着されて磁気ヘッドが構成されている。As shown in FIG. 1, the magnetic head includes a pair of ferrite single crystal cores 11, one of which is provided with an internal winding groove 11a. Metal magnetic thin 11 having high magnetic permeability and high saturation magnetic flux density on gap abutting surfaces 12 and 12 in each ferrite single crystal core 11! 13 is formed, and the metal magnetic thin film 1
A magnetic head is constructed by bonding the 3 and 13 inner members with a glass 15 or the like across a magnetic gap 14.
各フェライト単結晶コア１１は主磁路形成面１６が（１
１０）面２０とほぼ平行となるように設定されている。Each ferrite single crystal core 11 has a main magnetic path forming surface 16 (1
10) It is set to be almost parallel to the surface 20.
更に、各フェライト単結晶コア１１は上記（１１０）面
２０内に存在する〈１００〉方向Ａが、点線で示すよう
に、磁気ギャップ１４を含み、かつ、テープ摺動面】７
と垂直な平面２１との間に成す角θがＯ〜５°もしくは
４０〜８５°もしくは！２０−１８０°の範囲上なるよ
うに設定されている。Furthermore, each ferrite single crystal core 11 has a <100> direction A existing in the (110) plane 20 that includes a magnetic gap 14 as shown by the dotted line, and a tape sliding surface [7].
and the perpendicular plane 21 is 0~5° or 40~85° or! It is set to be above the range of 20-180°.
上記の範囲において、本発明の効果が特に顕著である角
θが約１４５°、テープ摺動面】７が（２１１）面又は
その近傍、ギャップ突き合わせ面１２及びそれと平行な
コア側面１８が（１１１）面又はその近傍となるように
構成した場合、磁気ヘッドにおける各フェライト単結晶
コア１１に塩酸等によりエツチングを施せば、第１図の
如く、コア側面Ｉ８に、正三角形の１つの頂点２２ａの
みがテープ摺動面１７側に位置するエッチビット２２が
観察できる。In the above range, the angle θ at which the effect of the present invention is particularly remarkable is approximately 145°, the tape sliding surface ]7 is at or near the (211) plane, and the gap abutting surface 12 and the core side surface 18 parallel thereto are (111). ) plane or its vicinity, if each ferrite single crystal core 11 in the magnetic head is etched with hydrochloric acid or the like, only one vertex 22a of the equilateral triangle will be etched on the core side surface I8 as shown in FIG. The etch bit 22 located on the tape sliding surface 17 side can be observed.
上記の構成によれば、前述の如く、各フェライト単結晶
コア１１の記録特性は従来の磁気ヘッドより格段に低下
するので、記録再生時に磁束はフェライト単結晶コア１
１・１１内を流れにくくなり、主として金属磁性薄１１
１１３・１３内を、透磁率の高い面内方向りに沿って流
れるようになる。According to the above configuration, as described above, the recording characteristics of each ferrite single crystal core 11 are significantly lower than those of conventional magnetic heads, so that the magnetic flux is transferred to the ferrite single crystal core 11 during recording and reproduction.
1・11 becomes difficult to flow, mainly metal magnetic thin 11
113, 13, it flows along the in-plane direction with high magnetic permeability.
これにより、記録再生時における金属磁性薄膜１３・１
３での磁気抵抗が小さくなるので、良好な記録再生特性
が得られるようになる。As a result, the metal magnetic thin film 13, 1 during recording and reproduction.
Since the magnetic resistance at 3 is reduced, good recording and reproducing characteristics can be obtained.
第２図に同一ギャップ長、同一形状、同一インダクタン
スを有する本発明及び従来の複合磁気ヘッドのそれぞれ
について、再生出力を測定した結果を相対値で示す。但
し、再生出力を実線■で示す本発明の複合磁気ヘッドに
おける２つのフェライト単結晶コア１１・１１中の上記
角θはともに約１４５°であり、再生出力を点線■で示
す従来の複合磁気ヘッドにおける２つのフェライト単結
晶コア中の上記角θに対応する角はともに約３５゜であ
る。又、本発明及び従来の複合磁気ヘッドにによる記録
再生に使用した磁気テープの保磁力は９００エルステツ
ド、磁気テープと磁気ヘッドの相対速度は５．８ｍ／ｓ
ｅｃに設定した。FIG. 2 shows relative values of the results of measuring the reproduction outputs of the present invention and the conventional composite magnetic heads having the same gap length, same shape, and same inductance. However, in the composite magnetic head of the present invention, where the reproduction output is shown by the solid line ■, the angles θ in the two ferrite single crystal cores 11 and 11 are both about 145°, and in the conventional composite magnetic head whose reproduction output is shown by the dotted line ■. The angles corresponding to the angle θ in the two ferrite single crystal cores are both about 35°. Furthermore, the coercive force of the magnetic tape used for recording and reproduction by the present invention and the conventional composite magnetic head was 900 oersted, and the relative speed between the magnetic tape and the magnetic head was 5.8 m/s.
I set it to ec.
第２図から明らかなように、本発明の磁気ヘッドは従来
の磁気ヘッドに比して、全周波数帯域において、２〜５
ｄＢ再生出力が向上している。As is clear from FIG. 2, the magnetic head of the present invention has a 2 to 5
Improved dB playback output.
更に、第３図には、それぞれ本発明の複合磁気ヘッドに
おいて、２つのフェライト単結晶コア１１・ｌｌ中の上
記角θをともに約１４５°とした場合の再生出力（実線
Ｉで表示）と、２つのフェライト単結晶コア１１・１１
中の角θをともに約３５°とした場合の再生出力（点線
■で表示）と、内部巻線溝１１ａが設けられている側の
フェライト単結晶コア１１中の角θを約１４５°、他方
のフェライト単結晶コア１１中の角θを約３５゜とした
場合の再生出力（１点鎖線■で表示）と、内部巻線溝１
．１ａが設けられている側のフェライト単結晶コア１１
中の角θを約３５°、他方のフェライト単結晶コア１１
中の角θを約１４５°とした場合の再生出力（１点鎖線
■で表示）とを相対値で示す。Furthermore, FIG. 3 shows the reproduction output (indicated by solid line I) when both the angles θ in the two ferrite single crystal cores 11·ll are about 145° in the composite magnetic head of the present invention, and Two ferrite single crystal cores 11.11
Reproduction output when the angle θ in the middle is both about 35° (indicated by dotted line ■), and the angle θ in the ferrite single crystal core 11 on the side where the internal winding groove 11a is provided is about 145°, and the other side The playback output when the angle θ in the ferrite single crystal core 11 is approximately 35° (indicated by the dashed line ■) and the internal winding groove 1
．． Ferrite single crystal core 11 on the side where 1a is provided
The middle angle θ is approximately 35°, and the other ferrite single crystal core 11
The playback output (indicated by a dashed line ■) when the middle angle θ is approximately 145° is shown as a relative value.
第３図から明らかなように、複合磁気ヘッドの２つのフ
ェライト単結晶コア１１−１１中の角θをともに約１４
５°に設定した場合は、実線ｆで示すように、他の場合
■〜■に比して全周波数帯域で高い再生出力が示された
。As is clear from FIG. 3, the angle θ in the two ferrite single crystal cores 11-11 of the composite magnetic head is approximately 14
When the angle was set to 5°, as shown by the solid line f, a higher reproduction output was exhibited in all frequency bands than in other cases (■ to ■).
〔発明の効果］
本発明に係る磁気ヘッドは、以上のように、１対のフェ
ライト単結晶コアと、各フェライト単結晶コアにおける
ギャップ突き合わせ面近傍に形成された金属磁性薄膜と
を有する磁気ヘッドにおいて、フェライト単結晶コアの
（１１０）面が主磁路形成面とほぼ平行とされるととも
に、該（１１０）面内に存在する＜１００＞方向と、磁
気ギャップを含み、かつ、テープ摺動面と垂直な平面と
の成す角が、０〜５°もしくは４０〜８５°もしくは１
２０〜１８０°の範囲となるように構成されているもの
である。[Effects of the Invention] As described above, the magnetic head according to the present invention includes a pair of ferrite single crystal cores and a metal magnetic thin film formed near the gap abutting surface of each ferrite single crystal core. , the (110) plane of the ferrite single crystal core is approximately parallel to the main magnetic path forming plane, and includes the <100> direction existing within the (110) plane, the magnetic gap, and the tape sliding surface. The angle formed by the plane perpendicular to the
The angle is in the range of 20 to 180 degrees.
これにより、フェライト単結晶コアにおける磁気記録再
生特性は従来に比して格段に劣ったものとなるので、記
録再生時の磁束はフェライト単結晶コア内を流れにくく
なり、主として金属磁性薄膜内をその面内方向、つまり
、厚さ方向と垂直な方向に流れるようになる。その場合
、金属磁性薄膜の面内方向の透磁率は厚さ方向よりかな
り高いため、従来の磁気ヘッドに比べて優れた記録再生
特性が得られるように・なる。As a result, the magnetic recording and reproducing characteristics of the ferrite single crystal core are significantly inferior to those of the conventional one, so the magnetic flux during recording and reproduction becomes difficult to flow through the ferrite single crystal core, and mainly flows through the metal magnetic thin film. It begins to flow in the in-plane direction, that is, in the direction perpendicular to the thickness direction. In this case, since the magnetic permeability of the metal magnetic thin film in the in-plane direction is considerably higher than that in the thickness direction, superior recording and reproducing characteristics can be obtained compared to conventional magnetic heads.
なお、上記（１１０）面内に存在するく１００〉方向と
、磁気ギャップを含み、かつ、テープ摺動面と垂直な平
面との成す角が約１４５°となるように構成すれば、本
発明の効果を最も顕著に発揮することができる。Note that the present invention can be achieved by configuring the structure so that the angle formed between the 100> direction existing in the (110) plane and a plane that includes the magnetic gap and is perpendicular to the tape sliding surface is approximately 145°. The effect of this can be most clearly demonstrated.
第１図乃至第３図は本発明の実施例を示すものであって
、第１図は磁気ヘッドの概略斜視図、第２図は本発明の
磁気ヘッドと従来の磁気ヘットの再生出力の相対値を示
すグラフ、第３図は本発明の磁気ヘッドにおいて（１１
０）面内に存在する＜１００＞方向と、磁気ギャップを
含む平面との成す角を種々に変更した場合のそれぞれの
再生出力の相対値を示すグラフ、第４図は従来の磁気ヘ
ッドの概略斜視図である。
１１はフェライト単結晶コア、１２はギャップ突き合わ
せ面、１３は金属磁性薄膜、２０は（１１０）面、２１
は平面、Ａは＜１００＞方向である。
第１図1 to 3 show embodiments of the present invention, in which FIG. 1 is a schematic perspective view of a magnetic head, and FIG. 2 is a relative relationship between the reproduction outputs of the magnetic head of the present invention and a conventional magnetic head. A graph showing the values, FIG. 3, shows the magnetic head of the present invention (11
0) A graph showing the relative values of the respective reproduction outputs when the angle formed by the <100> direction existing in the plane and the plane containing the magnetic gap is variously changed. Figure 4 is a schematic diagram of a conventional magnetic head. FIG. 11 is a ferrite single crystal core, 12 is a gap abutting surface, 13 is a metal magnetic thin film, 20 is a (110) plane, 21
is a plane, and A is a <100> direction. Figure 1
Claims (2)
晶コアにおけるギャップ突き合わせ面近傍に形成された
金属磁性薄膜とを有する磁気ヘッドにおいて、 フェライト単結晶コアの（１１０）面が主磁路形成面と
ほぼ平行とされるとともに、該（１１０）面内に存在す
る〈１００〉方向と、磁気ギャップを含み、かつ、テー
プ摺動面と垂直な平面との成す角が、０〜５゜もしくは
４０〜８５゜もしくは１２０〜１８０゜の範囲となるよ
うに構成されていることを特徴とする磁気ヘッド。1. In a magnetic head having a pair of ferrite single crystal cores and a metal magnetic thin film formed near the gap abutting surfaces of each ferrite single crystal core, the (110) plane of the ferrite single crystal core is the main magnetic path forming plane. and the angle formed by the <100> direction existing in the (110) plane and the plane that includes the magnetic gap and is perpendicular to the tape sliding surface is 0 to 5 degrees or 40 degrees. A magnetic head characterized in that it is configured to have an angle in the range of ~85° or 120-180°.
磁気ギャップを含み、かつ、テープ摺動面と垂直な平面
との成す角が約１４５゜となるように構成されているこ
とを特徴とする請求項第１項記載の磁気ヘッド。2. A <100> direction existing within the (110) plane,
2. The magnetic head according to claim 1, wherein the magnetic head includes a magnetic gap and is configured such that the angle formed between the tape sliding surface and a perpendicular plane is approximately 145 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63252449A JPH0827901B2 (en) | 1988-10-05 | 1988-10-05 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63252449A JPH0827901B2 (en) | 1988-10-05 | 1988-10-05 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0298803A true JPH0298803A (en) | 1990-04-11 |
| JPH0827901B2 JPH0827901B2 (en) | 1996-03-21 |
Family
ID=17237535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63252449A Expired - Fee Related JPH0827901B2 (en) | 1988-10-05 | 1988-10-05 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0827901B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04212706A (en) * | 1990-05-23 | 1992-08-04 | Sanyo Electric Co Ltd | Magnetic head |
| JPH04302807A (en) * | 1991-03-29 | 1992-10-26 | Victor Co Of Japan Ltd | Composite magnetic head |
| JPH04313803A (en) * | 1991-04-12 | 1992-11-05 | Sanyo Electric Co Ltd | Magnetic head |
| US5202806A (en) * | 1990-04-24 | 1993-04-13 | Canon Denshi Kabushiki Kaisha | Magnetic head |
| US5218500A (en) * | 1991-01-08 | 1993-06-08 | Sanyo Electric Co., Ltd. | Magnetic head having a single-crystal ferrite core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234215A (en) * | 1986-04-04 | 1987-10-14 | Canon Electronics Inc | Magnetic head |
| JPS63187404A (en) * | 1987-01-30 | 1988-08-03 | Canon Electronics Inc | Magnetic head |
-
1988
- 1988-10-05 JP JP63252449A patent/JPH0827901B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234215A (en) * | 1986-04-04 | 1987-10-14 | Canon Electronics Inc | Magnetic head |
| JPS63187404A (en) * | 1987-01-30 | 1988-08-03 | Canon Electronics Inc | Magnetic head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5202806A (en) * | 1990-04-24 | 1993-04-13 | Canon Denshi Kabushiki Kaisha | Magnetic head |
| JPH04212706A (en) * | 1990-05-23 | 1992-08-04 | Sanyo Electric Co Ltd | Magnetic head |
| US5218500A (en) * | 1991-01-08 | 1993-06-08 | Sanyo Electric Co., Ltd. | Magnetic head having a single-crystal ferrite core |
| JPH04302807A (en) * | 1991-03-29 | 1992-10-26 | Victor Co Of Japan Ltd | Composite magnetic head |
| JPH04313803A (en) * | 1991-04-12 | 1992-11-05 | Sanyo Electric Co Ltd | Magnetic head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827901B2 (en) | 1996-03-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |