JPS6098516A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS6098516A
JPS6098516A JP20434783A JP20434783A JPS6098516A JP S6098516 A JPS6098516 A JP S6098516A JP 20434783 A JP20434783 A JP 20434783A JP 20434783 A JP20434783 A JP 20434783A JP S6098516 A JPS6098516 A JP S6098516A
Authority
JP
Japan
Prior art keywords
magnetic
pair
equal
gaps
cores
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
JP20434783A
Other languages
Japanese (ja)
Inventor
Shigeyoshi Saito
斉藤 茂芳
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.)
NIPPON SHIYUUHENKI KK
Fujitsu Ltd
Hitachi Ltd
Original Assignee
NIPPON SHIYUUHENKI KK
Fujitsu Ltd
Hitachi 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 NIPPON SHIYUUHENKI KK, Fujitsu Ltd, Hitachi Ltd filed Critical NIPPON SHIYUUHENKI KK
Priority to JP20434783A priority Critical patent/JPS6098516A/en
Publication of JPS6098516A publication Critical patent/JPS6098516A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed

Landscapes

  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To detect both read-out dada and track shear data simultaneously by arranging a pair of magnetic heads forming gaps at their leading and parts and having equal electromagntic conversion characteristics adjuacently so that respective longitudinal directions are aligned on the same straight line and polarity is equal to each other. CONSTITUTION:A pair of cores 203, 204 having equal electromagnetic conversion characteistics are arranged adjacently so that the longitudinal directions of gaps 201, 202 formed on respective leading end parts are aligned. Individual winding 205, 206 are wound around respective cores 203, 204. The number of times of winding is usually equal and the winding directions are set up so that the characteristics of leaked magnetic flux generated in the gaps 201, 202 coincide with each other when same writing current is conducted. Writing or reading of data in/form a magnetic recording medium is executed by a pair of magnetic heads constituted of the cores 203, 204 and the windings 205, 206.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、磁気記録媒体上に情報を記録/再生する為の
磁気ヘッドに関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a magnetic head for recording/reproducing information on a magnetic recording medium.

〔発明の背景〕[Background of the invention]

従来、多くの磁気記憶装置で使用されている磁気ヘッド
の基本構造を第1図に示す。図示するように、従来の磁
気ヘッドは、先端部に細長いギャップ101を有する磁
心材(コア)102に巻線103を施した構造を1単位
としており、磁気記録媒体上のひとつのトラックのデー
タは、上記1単位のヘッドにより書込みまたは読出して
いた。
FIG. 1 shows the basic structure of a magnetic head conventionally used in many magnetic storage devices. As shown in the figure, the conventional magnetic head has a structure in which a winding 103 is applied to a magnetic core 102 having an elongated gap 101 at the tip, and the data of one track on a magnetic recording medium is , writing or reading was performed using the one unit head described above.

一方、熱的変位等により、データ読出し時にヘッドと記
録媒体との間の位置関係に相対的ずれが生じ、読出しデ
ータの信頼性を損うという問題がおこる。これはオフ・
トラック等と呼ばれ、磁気記録媒体のトラックの高密度
化を阻む要因となっている。この対策として、データ読
出し時に、磁気ヘッドから、これらオフ・トラックを補
正する為に使用される、トラックずれデータを常時検出
する必要がある。しかしながら、上記のような従来構成
の磁気ヘッドでは、電磁変化を電気変化に変換する電磁
変換機能を1個しか有しないので、トラックずれ量と、
その方向を検出するに当って比較すべき基準が存在せず
、トラックずれデータを常時検出することは不可能であ
った。
On the other hand, due to thermal displacement or the like, a relative shift occurs in the positional relationship between the head and the recording medium during data reading, resulting in a problem that the reliability of the read data is impaired. This is off
This is called a track, etc., and is a factor that prevents increases in the density of tracks on magnetic recording media. As a countermeasure for this, it is necessary to constantly detect track deviation data from the magnetic head during data reading, which is used to correct these off-tracks. However, the magnetic head with the conventional configuration as described above has only one electromagnetic conversion function that converts electromagnetic changes into electrical changes, so the amount of track deviation and
There is no standard for comparison when detecting the direction, and it has been impossible to constantly detect track deviation data.

〔発明の目的〕[Purpose of the invention]

本発明は上述の点にかんがみてなされたもので。 The present invention has been made in view of the above points.

データ読出し時、本来の読出しデータと、トラックずれ
のデータの双方を同時に検出することのできる磁気ヘッ
ドを提供することを目的とする。
It is an object of the present invention to provide a magnetic head capable of simultaneously detecting both original read data and track deviation data when reading data.

〔発明の概要〕[Summary of the invention]

本発明の要点は、先端部にギャップを形成してなる電磁
変換特性の相等しい一対の磁気ヘッドを、それぞれ前記
ギャップの長手方向が同一直線上に揃いかつ極性が相等
しくなるように近接して配置し、この一対の磁気ヘッド
の出力を別個に検出して、それらの和を本来の読出しデ
ータとし、それらの包絡線レベル、または実効値等の平
均化の差をトラックずれデータとする点にある。
The gist of the present invention is to place a pair of magnetic heads with equal electromagnetic conversion characteristics, each having a gap at the tip, in close proximity to each other so that the longitudinal direction of the gaps are aligned on the same straight line and the polarities are the same. The outputs of the pair of magnetic heads are detected separately, the sum of them is used as the original read data, and the averaged difference in their envelope level or effective value is used as track deviation data. be.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.

第2図は本発明に係る磁気ヘッドの基本構造を示す図で
ある。同図において、相等しい電磁変換特性を有する1
対のコア203および204が、それぞれ先端部に形成
されたギャップ201および202の長手方向を揃えて
、近接して配置されている。それぞれのコア203およ
び204には、別個の巻線205および206が施され
ている。
FIG. 2 is a diagram showing the basic structure of the magnetic head according to the present invention. In the same figure, 1 with equal electromagnetic conversion characteristics
A pair of cores 203 and 204 are arranged close to each other with the longitudinal directions of gaps 201 and 202 formed at their tips aligned. Each core 203 and 204 is provided with a separate winding 205 and 206.

これら巻線205および206の巻数は通常等しく、巻
方向は同じ書込電流を通電した時に、ギャップ201お
よび202に生ずる漏れ磁束の特性が互に等しくなる様
に設定する。
The number of turns of these windings 205 and 206 is usually the same, and the winding directions are set so that when the same write current is applied, the leakage flux characteristics generated in the gaps 201 and 202 are equal to each other.

磁気記録媒体への書込みあるいは説出しは、上記コア2
03,204および巻線205,206で構成される一
対の磁気ヘッドにより行われる。
Writing or explanatory information on the magnetic recording medium is performed by the core 2 mentioned above.
This is performed by a pair of magnetic heads composed of windings 03 and 204 and windings 205 and 206.

従って、これら1対のコア203および204の幅が、
磁気記録媒体の1トラツクの幅となる。データ書込みは
、上記1対の巻線に同じ書込み電流を与える事により行
われる。この場合、両コア203および204は十分に
接近しており、また、漏れ磁束の極性が等しいので、ト
ラックのヒンタ一部が書残しとなる事はない。
Therefore, the width of these pair of cores 203 and 204 is
This is the width of one track of the magnetic recording medium. Data writing is performed by applying the same write current to the pair of windings. In this case, both cores 203 and 204 are sufficiently close to each other, and the polarity of the leakage magnetic flux is the same, so that a portion of the hint of the track will not be left unwritten.

第3図は、データ読出し時における磁気記録媒体上のト
ラックと上記一対の磁気ヘッドの位置関係を示す図であ
る。同図において、磁気ヘッドを構成するコア203お
よび204のギャップ201および202が、トラック
301の上を走行することになる。ギャップ201とギ
ャップ202との間に、トラック301のセンター30
2が位置している。なお1図中303はオフ・トラック
が存在しない場合、304はオフ・トラックが存在する
場合を示す。
FIG. 3 is a diagram showing the positional relationship between the tracks on the magnetic recording medium and the pair of magnetic heads during data reading. In the figure, gaps 201 and 202 between cores 203 and 204 constituting a magnetic head run on a track 301. Between the gap 201 and the gap 202, the center 30 of the track 301
2 is located. In FIG. 1, 303 indicates a case where there is no off-track, and 304 indicates a case where an off-track exists.

第4図は、磁気ヘッドからの出力波形を示す図であり、
図中401および402は第3図のオフ・トラックが存
在しない場合(303)の巻線205および206に誘
起される電圧波形をそれぞれ示し、403および404
は第3図のオフ・トラックが存在する場合(304)の
巻線205および206に誘起される電圧波形をそれぞ
れ示す。
FIG. 4 is a diagram showing the output waveform from the magnetic head,
In the figure, 401 and 402 indicate the voltage waveforms induced in the windings 205 and 206, respectively, when there is no off-track (303) in FIG.
show voltage waveforms induced in windings 205 and 206, respectively, in the presence of off-track (304) in FIG.

オフ・トラックが存在しなければ、巻線205および2
06に誘起される電圧波形は、401および402に示
す様に振幅、位相共、全く相等しいものとなる。一方、
オフ・トラックが存在すれば、403および404に示
す様に、そのずれ量にほぼ比例して、ずれ方向側のコア
203の巻線205の出力のみが減少する。
If no off-track exists, windings 205 and 2
The voltage waveforms induced at 06 are completely equal in both amplitude and phase, as shown at 401 and 402. on the other hand,
If off-track exists, as shown at 403 and 404, only the output of the winding 205 of the core 203 on the side of the deviation direction decreases approximately in proportion to the amount of deviation.

従って、上記1対のコア203および204の巻線20
5および206出カを別個に検出して、それらの和を本
来の読出しデータ、あるいはそれらの包絡線レベルまた
は実効値等の平均値の差をトラックずれデータとすれば
、データ読出し時に、磁気ヘッドからオフ・トラックを
補正する為に使用されるトラックずれデータを常時検知
する事ができる。
Therefore, the windings 20 of the pair of cores 203 and 204
If outputs 5 and 206 are detected separately and the sum of them is used as the original read data, or the difference between the average values such as their envelope level or effective value is used as track deviation data, when reading data, the magnetic head Track deviation data used to correct off-track can be detected at all times.

第5図は、上記第2図に示す基本構成を磁気ディスク装
置用薄膜ヘッドに用いた場合の一例を示す図であり、同
図(a)は平面図、同図(b)は同図(a)のA−A’
線上断面図、同図(c)は同図(a)のB−B″線上断
面図、 同図(d)は同図(a)の矢印C方向から見た
側面図である。
FIG. 5 is a diagram showing an example of the case where the basic configuration shown in FIG. 2 is used in a thin film head for a magnetic disk device. FIG. a) AA'
FIG. 10(c) is a sectional view taken along the line B-B'' in FIG. 10(a), and FIG. 2(d) is a side view taken from the direction of arrow C in FIG. 1(a).

非磁性の電気的絶縁体である基板500の上に、メッキ
あるいは蒸着等の手段により、パーマロイ等の磁性材で
できた磁心部501となる第1層を形成し、この第1層
の上に第1層および基板500とは絶縁して、銅等の導
体でできたうず巻状のコイル504,505およびその
引出線508となる第2層を形成する。さらに、この第
2層の上にパーマロイ等の磁性材でできた磁心部502
.503および銅等の導体できた引出線506.507
となる第3層を形成する。第1層の磁心部501は図示
のように略五角形をなし、第3層の磁心部502と50
3は帯状をなし、第1層の磁心部501の底部501a
をのぞく4辺501b、c、d、eに沿って重り合うよ
うに配置され、五角形の底辺501a部分で磁心部50
1と磁心部502および磁心部501と磁心部503と
がそれぞれ接続される。また、第2層のコイル504,
505と第3層の引出し線506.507とはうず巻状
のコイル中心部509.510で、それぞれ接続され、
引出し線508はコイル504,505の外側端部に接
続される。結局、磁心部501の半分と磁心部502で
1個のコアを形成しく第2図のコア203に相当)、磁
心部501の半分と磁心部503で1個のコアを形成す
る(第2図のコア204に相当)。
A first layer that will become the magnetic core 501 made of a magnetic material such as permalloy is formed on the substrate 500, which is a non-magnetic electrical insulator, by means such as plating or vapor deposition, and on top of this first layer. A second layer that is insulated from the first layer and the substrate 500 and becomes spiral coils 504 and 505 made of a conductor such as copper and a lead wire 508 thereof is formed. Furthermore, a magnetic core portion 502 made of a magnetic material such as permalloy is placed on this second layer.
.. 503 and lead wires made of conductors such as copper 506 and 507
Form the third layer. The magnetic core portion 501 of the first layer has a substantially pentagonal shape as shown in the figure, and the magnetic core portions 502 and 50 of the third layer have a substantially pentagonal shape.
3 is a strip-shaped bottom portion 501a of the magnetic core portion 501 of the first layer.
The magnetic core 50 is arranged so as to overlap along the four sides 501b, c, d, and e except for the pentagonal base 501a.
1 and the magnetic core part 502, and the magnetic core part 501 and the magnetic core part 503 are connected, respectively. In addition, the second layer coil 504,
505 and the third layer lead wires 506 and 507 are connected at the spiral coil center portions 509 and 510, respectively,
A lead wire 508 is connected to the outer ends of the coils 504 and 505. After all, half of the magnetic core 501 and the magnetic core 502 form one core (corresponding to the core 203 in FIG. 2), and half of the magnetic core 501 and the magnetic core 503 form one core (FIG. 2). ).

また五角形の頂部501fにあたる磁心部501と磁心
部502、および磁心部501と磁心部503との間に
は細長いギャップ511および512が形成され(第2
図のギャップ201および202に相当する)1両ギャ
ップ511および512は同一直線上に揃って配置され
ている。従って、この五角形の頂部501fにあたる部
分が、磁気ヘッドが磁気記録媒体に書込みあるいは読出
しする場合の磁気ヘッドの先端部となる。
Further, elongated gaps 511 and 512 are formed between the magnetic core part 501 and the magnetic core part 502, and between the magnetic core part 501 and the magnetic core part 503, which correspond to the top part 501f of the pentagon.
Gaps 511 and 512 (corresponding to gaps 201 and 202 in the figure) are arranged on the same straight line. Therefore, the portion corresponding to the apex 501f of this pentagon becomes the tip of the magnetic head when the magnetic head writes to or reads from the magnetic recording medium.

第6図は、第5図のコイル504および505の等価回
路とこれらの駆動回路を示す図である。
FIG. 6 is a diagram showing an equivalent circuit of the coils 504 and 505 in FIG. 5 and their driving circuit.

コイル504と505は引出し線508で短絡され、こ
の短絡点はスイッチ601に接続され、スイッチ601
の他端は接地されている。スイッチ601は駆動回線6
09の信号により開閉さ九る。
The coils 504 and 505 are short-circuited by a lead wire 508, and this short-circuit point is connected to a switch 601.
The other end is grounded. The switch 601 is the drive line 6
It is opened and closed by the 09 signal.

コイル504の他端506は、スイッチ602゜603
および引出し線610にそれぞれ接続され、スイッチ6
02の他端は正電圧+Vに、スイッチ603の他端は所
定の直流電流を供給する電流源606にそれぞれ接続さ
れている。コイル505の他端507は、スイッチ60
4,605および引出し線611にそれぞれ接続され、
スイッチ604の他端は前記の正電圧十■に、スイッチ
605の他端は前記電流源606にそれぞれ接続されて
いる。スイッチ602およびスイッチ605は共に駆動
回線608により、スイッチ603およびスイッチ60
4は共に駆動回線607により、それぞれ開閉される。
The other end 506 of the coil 504 is connected to switches 602 and 603.
and the lead wire 610, respectively, and the switch 6
The other end of the switch 602 is connected to a positive voltage +V, and the other end of the switch 603 is connected to a current source 606 that supplies a predetermined DC current. The other end 507 of the coil 505 is connected to the switch 60
4,605 and the leader line 611, respectively,
The other end of the switch 604 is connected to the positive voltage 10, and the other end of the switch 605 is connected to the current source 606. Both switch 602 and switch 605 are connected to switch 603 and switch 60 by drive line 608.
4 are opened and closed by drive lines 607, respectively.

データ書込時には、書込命令が駆動回線609に、差動
書込みデータが駆動回線607,608にそれぞれ印加
される。駆動口M609に印加される書込命令は、スイ
ッチ601をOFFさせる。
When writing data, a write command is applied to drive line 609, and differential write data is applied to drive lines 607 and 608, respectively. A write command applied to the drive port M609 turns off the switch 601.

駆動回線607に印加される書込データはスイッチ60
3および604を、駆動口@60Bに印加される書込デ
ータはスイッチ602および605をそれぞれONさせ
る。コイル504および505は直列接続となるので、
電流源606より供給される書込電流は、駆動回線60
7および608に印加される差動書込データの極性に応
じて、これら両方のコイル504および505を端子5
06→短終点508→端子507、または端子507→
短絡点508→端子506の順に流れ、前記ギャップ5
11および512に同等の漏れ磁束を生じさせ、磁気記
録媒体にデータを書込む。
The write data applied to the drive line 607 is transferred to the switch 60.
3 and 604, the write data applied to the drive port @60B turns on the switches 602 and 605, respectively. Since the coils 504 and 505 are connected in series,
The write current supplied from the current source 606 is applied to the drive line 60.
Depending on the polarity of the differential write data applied to terminals 7 and 608, both coils 504 and 505 are connected to terminal 5.
06 → short end point 508 → terminal 507, or terminal 507 →
The flow flows in the order of short circuit point 508 → terminal 506, and the gap 5
11 and 512 to cause equivalent leakage flux to write data on the magnetic recording medium.

データ読出し時には、駆動回線609および駆動回線6
07,609に印加する書込命令、差動帯データ共にO
FFにするので、スイッチ601はON、それ以外の全
スイッチ602〜605をOFFにする。コイル504
と505の短絡点508は接地されるので、コイル端子
506および507には、互に逆位相の読出し電圧波形
が発生する。これらの電流波形の出力を引出し線610
.611より別個に取出し、それらの差動和を本来の読
出しデータとし、それらの実効値等の平均値の差をトラ
ックずれデータとすることにより、所望の信号を得る事
ができる。
When reading data, the drive line 609 and the drive line 6
Both the write command and differential band data applied to 07 and 609 are O.
Since it is set to FF, switch 601 is turned on and all other switches 602 to 605 are turned off. coil 504
Since the short-circuit point 508 between and 505 is grounded, read voltage waveforms having mutually opposite phases are generated at the coil terminals 506 and 507. The output of these current waveforms is connected to the lead wire 610.
.. 611, their differential sum is used as original read data, and the difference between their average values such as effective values is used as track deviation data, whereby a desired signal can be obtained.

なお、上記実施例においては、磁気ディスク装置用薄膜
に本発明を実施した例を示したが、第2図に示すような
基本構造はこれにかぎることなく、各種の磁気ヘッドに
応用できる。
In the above embodiment, an example was shown in which the present invention was applied to a thin film for a magnetic disk device, but the basic structure as shown in FIG. 2 is not limited to this, and can be applied to various magnetic heads.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明に係る磁気ヘッドは、一対
の磁気ヘッドの出力を別個に検出し、それぞれの和を本
来の読出しデータとし、それらの実施値等の平均値差を
トラックずれデータとするので、磁気ヘッドのオフ・ト
ラックを補正するトラックずれデータを得ることができ
るという優れた効果を有する。
As explained above, the magnetic head according to the present invention separately detects the outputs of a pair of magnetic heads, uses the sum of each as the original read data, and uses the average difference between these actual values as track deviation data. Therefore, it has an excellent effect of being able to obtain track deviation data for correcting off-track of the magnetic head.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の磁気ヘッドの基本構造を示す図、第2図
は本発明に係る磁気ヘッドの基本構造を示す図、第3図
は本発明に係る磁気ヘッドと記録媒体トラックとの相対
位置関係を示す図、第4図は第3図の磁気ヘッド位置に
おけるそれぞれのヘッドの出力の波形を示す図、第5図
は本発明を磁気ディスク装置用薄膜ヘッドに用いた場合
を示す図で、同図(a)は平面図、同図(b)、(C)
は同図(a)のA−A’綿線上よびB−B’線上断面図
、同図(d)は同図(a)の矢印C方向から見た側面図
である。 201.202・・・ギャップ、203,204・・・
コア、205,206・・・コイル、500・・・基板
、 501,502,503・・・磁心部、504.5
05・・・コイル+ 506,507゜508・・・引
出し線、 601〜605・・・スイッチ、 606・
・・電流源、607,608゜609・・・駆動回線、
 610,611・・・引出し線・ 代理人弁理士 鈴 木 誠 01 第3図 第4図 404Nで勺んハハハV 牙5図 (ト) オ6図 十v 手続補正書(方式) 特許庁長官 着 杉 和 夫殿 1事件の表示 昭和5年特許願第204347号3、補
正をする者 事件との関係 出願人 代表者 諸 島 正 雄 (ほか2名)4代理人 住 所 響151東京都渋谷区代々木2丁目38番12
号 錦鶏ビル201号5 補正命令 の日付 昭和9年1月11日(発送日昭和め年1月31日)6補
正により増加する発明の詳細な説 明測置第11頁15〜16行目の「・・・側面図である
。」の記載を「・・・側面図、第6図は第5図の等価回
路とその駆動回路を示す図である。」に補正する。 以上
FIG. 1 is a diagram showing the basic structure of a conventional magnetic head, FIG. 2 is a diagram showing the basic structure of a magnetic head according to the present invention, and FIG. 3 is a diagram showing the relative position of the magnetic head according to the present invention and recording medium tracks. 4 is a diagram showing the output waveform of each head at the magnetic head position shown in FIG. 3, and FIG. 5 is a diagram showing the case where the present invention is applied to a thin film head for a magnetic disk device. Figure (a) is a plan view, Figure (b), (C)
3A is a sectional view taken along the line AA' and B-B' in FIG. 2A, and FIG. 201.202...gap, 203,204...
Core, 205, 206... Coil, 500... Substrate, 501, 502, 503... Magnetic core portion, 504.5
05...Coil + 506,507゜508...Leader wire, 601-605...Switch, 606.
...Current source, 607,608゜609...Drive line,
610,611...Leader line/Representative Patent Attorney Makoto Suzuki 01 Figure 3 Figure 4 404N Hahaha V Figure 5 (G) Figure 6 10v Procedural amendment (method) Arrived by Commissioner of the Patent Office Indication of Kazuo Sugi 1 case 1930 Patent Application No. 204347 3, relationship with the amended case Applicant representative Masao Moroshima (and 2 others) 4 Agent address Hibiki 151 Shibuya-ku, Tokyo Yoyogi 2-38-12
No. Nishikikei Building No. 201 5 Date of amendment order January 11, 1930 (Shipping date January 31, 1939) 6 Detailed explanation of the invention increased by amendment . . . is a side view." is corrected to ". . . side view. FIG. 6 is a diagram showing the equivalent circuit of FIG. 5 and its driving circuit."that's all

Claims (1)

【特許請求の範囲】[Claims] (1)先端部にギャップを形成してなる電磁変換特性の
相等しい一対の磁気ヘッドを、それぞれ前記ギャップの
長手方向が同一直線上に揃いかつ極性が相等しくなるよ
うに互に近接して配置したことを特徴とする磁気ヘッド
(1) A pair of magnetic heads with equal electromagnetic characteristics with a gap formed at the tip are arranged close to each other so that the longitudinal direction of the gap is aligned on the same straight line and the polarity is the same. A magnetic head characterized by:
JP20434783A 1983-10-31 1983-10-31 Magnetic head Pending JPS6098516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20434783A JPS6098516A (en) 1983-10-31 1983-10-31 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20434783A JPS6098516A (en) 1983-10-31 1983-10-31 Magnetic head

Publications (1)

Publication Number Publication Date
JPS6098516A true JPS6098516A (en) 1985-06-01

Family

ID=16488992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20434783A Pending JPS6098516A (en) 1983-10-31 1983-10-31 Magnetic head

Country Status (1)

Country Link
JP (1) JPS6098516A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246118A (en) * 1986-04-18 1987-10-27 Tokico Ltd Magnetic recorder
JPS6353711A (en) * 1986-08-25 1988-03-08 Mitsubishi Electric Corp Magnetic disk device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246118A (en) * 1986-04-18 1987-10-27 Tokico Ltd Magnetic recorder
JPS6353711A (en) * 1986-08-25 1988-03-08 Mitsubishi Electric Corp Magnetic disk device

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