JPS6061919A - Magnetic storage medium - Google Patents

Magnetic storage medium

Info

Publication number
JPS6061919A
JPS6061919A JP16975283A JP16975283A JPS6061919A JP S6061919 A JPS6061919 A JP S6061919A JP 16975283 A JP16975283 A JP 16975283A JP 16975283 A JP16975283 A JP 16975283A JP S6061919 A JPS6061919 A JP S6061919A
Authority
JP
Japan
Prior art keywords
magnetic
coated
magnetic storage
tantalum alkoxide
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.)
Pending
Application number
JP16975283A
Other languages
Japanese (ja)
Inventor
Masahiro Yanagisawa
雅広 柳沢
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 JP16975283A priority Critical patent/JPS6061919A/en
Publication of JPS6061919A publication Critical patent/JPS6061919A/en
Pending legal-status Critical Current

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  • Lubricants (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a magnetic storage medium having a protective film which protects thoroughly a magnetic medium against contact friction by coating a hydrolyzed matter of tantalum alkoxide on a magnetic medium. CONSTITUTION:Iron oxide such as Fe3O4 or metal or alloy such as Co-Ni, Co-Rh, Co-Ni-Mo or Co-Sm is coated as a magnetic medium 2 on a substrate 1 consisting of an aluminum alloy, plastics such as polyester, polyimide, metals such as Cr, Mo, W or a glass plate, etc. and a hydrolyzed matter 3 of the tantalum alkoxide expressed by the formula is coated as a protective film thereon then a lubricating agent 4 is coated thereon. The lubricating agent is enumerated by perfluoroalkyl polyether, higher fatty acid ester, higher fatty acid amide, unsatd. fatty acid, MoS2, fluorocarbon, etc.

Description

【発明の詳細な説明】 本発明は磁気的記憶装置(磁気ディスク装置および磁気
ドラム装置等)に用いられる磁気記憶体に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic storage body used in a magnetic storage device (magnetic disk device, magnetic drum device, etc.).

一般に記録再生磁気へ、ド(以下ヘッドと呼ぶ)と磁気
記憶体とを構成部とする磁気記憶装置の記録再生方法に
は大別して次のような二種類の方法がある。第一の方法
は操作開始時にヘッドと磁気記憶体面とを接触状態でセ
ットした後、前記磁気記憶体に所要の回転を与えること
によシ前記ヘッドと前記磁気記憶体面との間に空気層分
の空間を作り、この状態で記録再生をする方法である(
コンタクト・スタート・スト、プ方式。以下C8S方式
と呼ぶ。)。この方法では、操作終了時に・磁気記憶体
の回転が止まり、この時ヘッドと磁気記憶体面は操作開
始時と同様に接触層線状態にある。
In general, there are two types of methods for recording and reproducing magnetic information in a magnetic storage device comprising a magnetic recording head (hereinafter referred to as a head) and a magnetic storage body. The first method is to set the head and the magnetic storage surface in contact at the start of operation, and then apply a required rotation to the magnetic storage to create an air layer between the head and the magnetic storage surface. This is a method of creating a space and recording and playing in this state (
Contact start/stop method. Hereinafter, this will be referred to as the C8S method. ). In this method, at the end of the operation, the rotation of the magnetic storage body is stopped, and at this time the head and the magnetic storage body surface are in the contact layer line state as at the beginning of the operation.

第二の方法は磁気記憶体に予め所要の回転金与えておき
、急激にヘッドt−i気記憶体面上に押しつけることに
よシ前記ヘッドと前記磁気記憶体面との間に空気層分の
空間をつくり、この状態で記録再生する方法である。こ
のように第一の方法では操作開始時および終了時にへ、
ドと磁気記憶体面は接触M線状態にあシ、第二の方法で
はヘッドを磁気記憶体面に押しつける際に接触層線状態
になる。これらの接触層線状態におけるヘッドと磁気記
憶体の間に生じる層線力は、ヘッドおよび磁気記憶体を
摩耗させついにはへ、ドおよび金属磁性薄膜媒体に傷を
生じせしめることがある。また前記接触層線状態におい
てヘッドのわずかな姿勢の変化がヘッドにかっる萄重を
不均一にさせへ、ドおよび磁気記憶体表面に傷を作るこ
ともある。また更に記録再生中に突発的にヘッドが磁気
記憶体に接触しヘッドと磁気記憶体間に大きな摩擦力が
イカきヘッドおよび磁気記憶体が破壊されることがしば
しば起こる。この様なヘッドと磁気記憶体との接触摩擦
、接触摩耗および接融破壊からヘッドおよび磁気記憶体
を保護するために磁気記憶体の表面に保護被膜全被覆す
ることが必要である。
The second method is to apply a required amount of rotation to the magnetic storage body in advance, and then suddenly press the head t-i onto the magnetic storage body surface, thereby creating a space equivalent to an air layer between the head and the magnetic storage body surface. This is a method for recording and reproducing data in this state. In this way, in the first method, at the start and end of the operation,
The head and the magnetic storage surface are in a contact M-line state, and in the second method, when the head is pressed against the magnetic storage surface, they are in a contact layer line state. The layer forces generated between the head and the magnetic storage body in these contact layer conditions can wear the head and the magnetic storage body and eventually cause scratches on the disk and the metal magnetic thin film medium. Further, in the contact layer state, a slight change in the posture of the head causes the weight on the head to become uneven, which may cause scratches on the surface of the magnetic memory. Furthermore, during recording and reproduction, the head suddenly comes into contact with the magnetic storage body, and a large frictional force between the head and the magnetic storage body often occurs, causing damage to the head and the magnetic storage body. In order to protect the head and the magnetic memory from such contact friction, contact wear, and melting damage between the head and the magnetic memory, it is necessary to completely coat the surface of the magnetic memory with a protective coating.

従来から保護被膜として金属めっき膜(例えばCr、R
h、N1−P等)全保護膜として被覆する方法があるが
、いずれも上記の接触摩擦現象に対して有力な手段とは
ならない。また金属磁性悔膜媒体の表面全酸化させその
上にシリコーンオイルヲ塗布する方法がある(特公昭4
9−29445号明細書参照)がこの方法では磁性道膜
媒体の磁気特性を悪化させる上に、ヘッドとディスクの
密着現象を引き起こし、やはり上記の接触摩擦現象に対
し有力た手段とはならない。
Traditionally, metal plating films (e.g. Cr, R) have been used as protective films.
h, N1-P, etc.) There is a method of coating the entire surface with a protective film, but none of these methods is effective against the above-mentioned contact friction phenomenon. There is also a method of completely oxidizing the surface of a metal magnetic penitentiary medium and applying silicone oil on it (Special Publications Publication No. 4).
9-29445), this method not only deteriorates the magnetic properties of the magnetic film medium but also causes the phenomenon of close contact between the head and the disk, and is not an effective means for dealing with the above-mentioned contact friction phenomenon.

本発明の目的は上記接触ji#、擦現象に対して十分に
磁性媒体を保護する保膜被膜會有する磁気記憶体を提供
するととにある。
It is an object of the present invention to provide a magnetic storage body having a protective coating that sufficiently protects the magnetic medium against the above-mentioned contact and scratch phenomena.

すなわち、本発明によれば十分平滑な表面を有する非磁
性下地上に磁性媒体が被覆され、この磁性媒体上にタン
タルアルコキシドの加水分解重合物が被覆されたこと1
i−特徴とし、さらに必要に応じてその上に潤滑剤が被
覆された磁気記憶体が構成される。
That is, according to the present invention, a magnetic medium is coated on a non-magnetic substrate having a sufficiently smooth surface, and a hydrolyzed polymer of tantalum alkoxide is coated on the magnetic medium.
A magnetic memory body is constructed which has the i-characteristics and further has a lubricant coated thereon as required.

次に図面全参照して本発明の詳細な説明する。The present invention will now be described in detail with reference to all the drawings.

第1図は本発明による磁気記憶体の一実施例を示す断面
図である。第1図において本発明の磁気記憶体は下地体
1とその上に被覆された磁性媒体2とこの媒体上に被覆
されたタンタルアルコキシドの加水分解重合物3と該重
合物3上に被覆された潤滑剤4からなっている。
FIG. 1 is a cross-sectional view showing one embodiment of a magnetic storage body according to the present invention. In FIG. 1, the magnetic memory of the present invention comprises a base body 1, a magnetic medium 2 coated on the base body, a hydrolyzed polymer of tantalum alkoxide 3 coated on the medium, and a hydrolyzed polymer 3 of tantalum alkoxide coated on the medium. It consists of lubricant 4.

下地体1は表面が十分に平滑な構造を持つ必要があり、
材料としてはアルミ合金又は陽極酸化アルマイト、N1
−Pメッキ膜# Cr a F*Ni * MOe ま
たはW被覆のアルミ合金又はポリエステル、ポリイミド
、ポリアミドイミドなどのプラスチック又はCr 、F
 eN i 1Mo h Wなどの金属又はガラス板等
が適する。次にこの下地体1の上に磁性媒体2としてF
e2O2+γ−F・、O8などの鉄酸化物又はCo−N
i。
The base body 1 needs to have a structure with a sufficiently smooth surface.
The material is aluminum alloy or anodized alumite, N1
-P plating film #Cr a F * Ni * MOe or W-coated aluminum alloy or plastic such as polyester, polyimide, polyamideimide, or Cr, F
A metal or glass plate such as eN i 1Mo h W is suitable. Next, F as a magnetic medium 2 is placed on this base body 1.
e2O2+γ-F・, iron oxides such as O8 or Co-N
i.

Coi、Co−N1−P、Co−Mn−P+ Co−N
i−Mn−P+Co−Re、Co−Mn−Re−P、C
o−Cr、Co−V、Co−Pt、 Co−Ni−Pt
、 Co−Pt−Cr、 Co−Pt−V。
Coi, Co-N1-P, Co-Mn-P+ Co-N
i-Mn-P+Co-Re, Co-Mn-Re-P, C
o-Cr, Co-V, Co-Pt, Co-Ni-Pt
, Co-Pt-Cr, Co-Pt-V.

Co−Rh 、 Co−Ni −Mo又はCo−Smな
どの金属又は合金を被覆する。
Coating a metal or alloy such as Co-Rh, Co-Ni-Mo or Co-Sm.

3の上に潤滑剤4が被覆される。潤滑剤としてはバー7
0ロアルキルボリエーテル、テトラフロロエチレン、テ
トラフロロエチレンテロマー、パーフロロカルボン酸、
パーフロロアルコール、パーフロロカルボン酸エステル
、パーフロロアルコールの脂1171’エステル、バー
70ロアルギルアルコキシシラン、フロロシリコーン、
シリコーン、パーフロロアルキルスルホン酸、バー70
ロアルキルスルホン酸アンモニウム、MWEJj酸アル
キルアルコキシシラン、高級脂肪酸、菌数脂肪アルコー
ル。
3 is coated with a lubricant 4. Bar 7 as a lubricant
0roalkyl polyether, tetrafluoroethylene, tetrafluoroethylene telomer, perfluorocarboxylic acid,
Perfluoroalcohol, perfluorocarboxylic acid ester, perfluoroalcohol fat 1171' ester, bar 70 roargylalkoxysilane, fluorosilicone,
Silicone, perfluoroalkyl sulfonic acid, bar 70
Ammonium loalkylsulfonate, alkylalkoxysilane MWEJj acid, higher fatty acid, bacterial count fatty alcohol.

高級脂肪酸エステル、高級脂肪酸7ミド、不飽和脂肪酸
、長鎖脂肪族炭化水素+ Mo51 + VSt +ふ
っ化カーボンなどがある。
Examples include higher fatty acid ester, higher fatty acid 7-mide, unsaturated fatty acid, long chain aliphatic hydrocarbon + Mo51 + VSt + fluorinated carbon.

第2図は本発明による磁気記憶体の別の実施例を示す断
面図であシ、第1図における潤滑剤4がない構成となっ
ている。
FIG. 2 is a cross-sectional view showing another embodiment of the magnetic storage body according to the present invention, in which the lubricant 4 shown in FIG. 1 is not provided.

前記タンタルアルコキシドの加水分解重合物3の原料と
して用いられるタンタルアルコキシドは次の一般式で表
わせる。
The tantalum alkoxide used as a raw material for the hydrolyzed polymer 3 of tantalum alkoxide is represented by the following general formula.

Ta (OR) 6−xR−[xはθ〜4の整数、Rは
−C1υ の整数9mは1以上の整数)R′は一〇fl■2n+1
(nはOまたは1以上の整数)〕 タンタルアルコキシドは反応性が高く特に基盤上の吸着
水によっても加水分W4ヲ起こして重合し、非晶質の重
合物を基盤上に形成することができる。
Ta (OR) 6-xR-[x is an integer of θ to 4, R is an integer of -C1υ9m is an integer of 1 or more) R' is 10fl■2n+1
(n is O or an integer of 1 or more) Tantalum alkoxide has high reactivity and can polymerize by causing hydrolysis W4 even with adsorbed water on the substrate, forming an amorphous polymer on the substrate. .

この非晶質の重合物は加熱する程、重合が進行してTa
20gの硬い被膜を形成するが、蒸着またはスパッタ法
などにより被覆された金属酸化膜あるいは金属表面を熱
、薬品または電気化学的に酸化することにより被覆され
た金属酸化膜とは異なシ、500度の焼成温度以下では
Ta−0R,Ta−OHのうちの1以上が被膜内部およ
び表面に残留してヘッドとの接触摩擦に対し優れた自己
潤滑被膜全形成する。
The more this amorphous polymer is heated, the more polymerization progresses and Ta
It forms a hard film of 20g, but it is different from a metal oxide film coated by vapor deposition or sputtering, or a metal oxide film coated by thermally, chemically or electrochemically oxidizing the metal surface. Below the firing temperature, one or more of Ta-0R and Ta-OH remains inside and on the surface of the film, forming a self-lubricating film that is excellent against contact friction with the head.

またタンタルアルコキシドの加水分解重合物は他の金属
例えばケイ素、チタン、ジルコニウム。
Hydrolyzed polymers of tantalum alkoxide can also be used with other metals such as silicon, titanium, and zirconium.

アルミニウムなどのアルコキシドの加水分解重合物に比
べ硬く、ち密な被膜全形成する。
It is harder than hydrolyzed polymers of alkoxides such as aluminum and forms a dense coating.

次に本発明の磁気記憶体全実施例によシ詳細に説明する
Next, all embodiments of the magnetic storage body of the present invention will be explained in detail.

実施例1 合金円盤1として旋盤加工および熱矯正によって十分小
さなうねり(円周方向で50μm以下および半径方向で
10μm以下)をもった面に仕上げられたディスク状ア
ルミニウム合金盤上に非磁性合金層2としてニッケルー
燐(Ni−p)非磁性合金を約50Amの厚さにめっき
し、このニッケルー燐めっき膜を機械的他励によシ表面
粗さ0.04μm以下、厚さ約30μmrLまで鏡面研
磨仕上げしたのち、その上に金属磁性鱒膜媒体3として
コバルト−ニッケルー燐(Co−Ni −p )金属磁
性合金を約0.05μmの厚さにめっきした。さらに、
このコバルト−−ニツケルー燐(Co−N1−p )金
属磁性合金層の上に、Ta (0CHs )*が2重量
4.n−ブチルアルコールが98重量−からなる溶液を
十分に混合した後、回転塗布法によυ飲布した。すなわ
ち、前記アルミニウム合金盤上にニッケルー燐被膜、そ
の上にコバルト−ニッケルー燐被膜がそれぞれめっきに
よシ被覆されたディスク状円盤を20ORPM(毎分の
回転数)よシ大きい速度で回転させ(水平面内で)、前
述の組成物溶液をディスク状円盤の面上に前記組成物溶
液を含んだ容器よυ吐出すると、吐出された溶液は遠心
力によってディスク状円盤の外側へ、ディスク状円盤の
面上をぬらしつつ広がる。前記ディスク状円盤の面上に
吐出された溶液の溶媒(n−ブチルアルコール)が蒸発
するにつれ、保護被膜4としてタンタルアルコキシドの
加水分解重合物の被膜が前記ディスク状円盤の面上に形
成された。このようにして0.1μmの膜厚にタンタル
アルコキシドの加水分解重合物の被膜が被覆された前記
ディスク状円盤をしばらく室温(約25℃)で放置して
、前記タンタルアルコキシドの加水分解重合物の被膜中
に残存しているn−ブチルアルコールの溶媒をさらに蒸
発させたのち全体全200℃で3時間焼成したものを保
睦被膜として前記ディスク状円盤上に形成させて磁気デ
ィスク全作った。
Example 1 A non-magnetic alloy layer 2 is formed on a disc-shaped aluminum alloy disc 1 which has been finished with sufficiently small waviness (50 μm or less in the circumferential direction and 10 μm or less in the radial direction) by lathe processing and thermal straightening. The nickel-phosphorus (Ni-P) nonmagnetic alloy is plated to a thickness of approximately 50 Am, and this nickel-phosphorus plating film is mirror-polished to a surface roughness of 0.04 μm or less and a thickness of approximately 30 μm by mechanical external excitation. Thereafter, a cobalt-nickel-phosphorus (Co-Ni-p) metal magnetic alloy was plated thereon to a thickness of about 0.05 μm as a metal magnetic trout film medium 3. moreover,
On this cobalt--nickel-phosphorus (Co--N1-p) metal magnetic alloy layer, Ta (0CHs)* is deposited at 2 weight 4. After thoroughly mixing a solution consisting of 98% n-butyl alcohol, the solution was applied by spin coating. That is, the disc-shaped disc, in which the aluminum alloy disc is coated with a nickel-phosphorus coating and the cobalt-nickel-phosphorus coating is coated on top of the aluminum alloy disc, is rotated at a speed greater than 20 ORPM (rotations per minute) (horizontal surface). When the above composition solution is discharged from the container containing the composition solution onto the surface of the disc-shaped disc, the discharged solution is transferred to the outside of the disc-shaped disc by centrifugal force and onto the surface of the disc-shaped disc. Spread while wetting the top. As the solvent (n-butyl alcohol) of the solution discharged onto the surface of the disk-shaped disk evaporated, a film of a hydrolyzed polymer of tantalum alkoxide was formed as a protective coating 4 on the surface of the disk-shaped disk. . The disk-shaped disk coated with the hydrolyzed polymer of tantalum alkoxide to a thickness of 0.1 μm was left at room temperature (approximately 25° C.) for a while, and the hydrolyzed polymer of tantalum alkoxide was After the n-butyl alcohol solvent remaining in the film was further evaporated, the entire film was fired at 200° C. for 3 hours, and a retaining film was formed on the disc-shaped disc to produce a magnetic disk.

実施例2 実施例1と同様にして但しタンタルアルコキシドの加水
分触重合物を280℃で1時間焼成したものを用いて磁
気ディスクを作った。
Example 2 A magnetic disk was produced in the same manner as in Example 1, except that a hydrocatalyzed product of tantalum alkoxide was fired at 280° C. for 1 hour.

実施例3 実施例1と同様にして但し次の組成物を用いてタンタル
アルコキシドの加水分解重合物を形成させて磁気ディス
クを作った。
Example 3 A magnetic disk was produced in the same manner as in Example 1, except that the following composition was used to form a hydrolyzed polymer of tantalum alkoxide.

Ta (0CtHi )4 CuHss 2重量%イソ
プロピルアルコール 98重量96実施例4 実施例1と同様にして但し磁性媒体としてγ−F@*0
st−スパッタリング法によシ被覆して磁気ディスクを
作った。
Ta (0CtHi)4 CuHss 2% by weight isopropyl alcohol 98 weight 96 Example 4 Same as Example 1 except that γ-F@*0 was used as the magnetic medium.
A magnetic disk was produced by coating using the st-sputtering method.

実施例5 下地体1にポリエステルを用いその上に磁性媒体2とし
てCoCr合金會スパ、クリング法により被覆し、その
上に実施例1で示した組成物を回転塗布シ、80℃で乾
燥してタンタルアルコキシドの加水分解重合物3f:被
覆しその上に潤滑剤4としてパーフロロアルキルポリエ
ーテルの0.01 % ) IJクロルトリフロ日日夕
タン溶液回転塗布して磁気ディスクを作った。
Example 5 Polyester was used as the substrate 1, and a CoCr alloy was coated thereon as the magnetic medium 2 by the spacing method, and the composition shown in Example 1 was applied by spin coating and dried at 80°C. A hydrolyzed polymer of tantalum alkoxide 3f was coated, and a 0.01% perfluoroalkyl polyether (0.01%) solution of perfluoroalkyl polyether as a lubricant 4 was spin-coated thereon to produce a magnetic disk.

実施例6 実施例1と同様にして但しタンタルアルコキシドの加水
分解重合物3の上に潤滑剤としてヘプタフロロオクタデ
シルトリエトキシン2ンの0.05チドリクロルトリフ
ロロエタン溶液を回転塗布して磁気ディスクを作った。
Example 6 A magnetic disk was prepared in the same manner as in Example 1, except that a 0.05 tidlychlortrifluoroethane solution of heptafluorooctadecyltriethoxine 2 was applied as a lubricant onto the hydrolyzed polymer 3 of tantalum alkoxide, and a magnetic disk was prepared. Had made.

比較例1 実施例1と同様にして伊しタンタルアルコキシドの加水
分解重合物の代りにシリコンアルコキシドの加水分解重
合物を次の組成物全回転塗布することにより被覆して磁
気ディスクを作った。
Comparative Example 1 In the same manner as in Example 1, a magnetic disk was prepared by coating a hydrolyzed polymer of silicon alkoxide in place of the hydrolyzed polymer of tantalum alkoxide by completely coating the following composition.

St (0CH8)a 2重量% nブチルアルコール 98重量% 比較例2 実施例1と同様にして但しタンタルアルコキシドの加水
分解重合物の代シにチタンアルコキシドの加水分解重合
物を次の組成物を回転塗布する仁とによシ被覆して磁気
ディスクを作った。
St (0CH8)a 2% by weight n-butyl alcohol 98% by weight Comparative Example 2 The following composition was prepared in the same manner as in Example 1, except that instead of the hydrolyzed polymer of tantalum alkoxide, a hydrolyzed polymer of titanium alkoxide was used. A magnetic disk was made by coating it with a coating.

T i (0CHs )4 2重量% nブチルアルコール 98重量% 比較例3 実施例1と同様にして但しタンタルアルコキシドの加水
分解重合物の代りにTa1O5全スパツタリング法によ
シ被覆して磁気ディスクを作った。
T i (0CHs) 4 2% by weight n-butyl alcohol 98% by weight Comparative Example 3 A magnetic disk was produced in the same manner as in Example 1, except that instead of using the hydrolyzed polymer of tantalum alkoxide, it was coated with a Ta1O5 total sputtering method. Ta.

実施例1〜6及び比較例1.2.3’i用いてces繰
シ返し耐摩耗試験を行なったところ、実施例1〜6は2
万回繰如返しにおいても磁気ディスク表面に傷は認めら
れなかったが比較例1および3は1万回、比較例2は1
000回で表面に傷がついた。
When a CES repeated abrasion test was conducted using Examples 1 to 6 and Comparative Examples 1.2.3'i, Examples 1 to 6 showed 2
No scratches were observed on the magnetic disk surface even after repeated testing 10,000 times.
The surface was scratched after 000 cycles.

以上の様にタンタルアルコキシドの加水分解重合物は他
の金属の加水分解重合物およびスバ、タリング法により
被覆したTa1O1膜に比べ耐摩耗性が非常に高いこと
が分り、磁気ディスクの信頼性を飛躍的に高めることが
出来る。
As mentioned above, it has been found that the hydrolyzed polymer of tantalum alkoxide has extremely high wear resistance compared to the hydrolyzed polymer of other metals and the Ta1O1 film coated by the sludge and talling method, which dramatically improves the reliability of magnetic disks. can be increased.

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

第1図及び第2図は本発明の磁気記憶体の構成を示す部
分断面図である。 1は下地体、2は磁性媒体、3はタンタルアルコキシド
の加水分解重合物、4は潤滑剤である。 代理人弁理士 1原 晋 第 1 凹 予「 第 2 囚 19Q 1
FIGS. 1 and 2 are partial sectional views showing the structure of the magnetic storage body of the present invention. 1 is a base body, 2 is a magnetic medium, 3 is a hydrolyzed polymer of tantalum alkoxide, and 4 is a lubricant. Representative Patent Attorney 1. Susumu Hara 1. 2nd Prisoner 19Q 1

Claims (1)

【特許請求の範囲】[Claims] (1)下地体の上に磁性媒体が被覆され、さらに該媒体
上にタンタルアルコキシドの加水分鱗重合物が被覆され
た構成を有することを特徴とする磁気記憶体。
(1) A magnetic memory body characterized by having a structure in which a magnetic medium is coated on a base body, and a hydroscale polymer of tantalum alkoxide is further coated on the medium.
JP16975283A 1983-09-14 1983-09-14 Magnetic storage medium Pending JPS6061919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16975283A JPS6061919A (en) 1983-09-14 1983-09-14 Magnetic storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16975283A JPS6061919A (en) 1983-09-14 1983-09-14 Magnetic storage medium

Publications (1)

Publication Number Publication Date
JPS6061919A true JPS6061919A (en) 1985-04-09

Family

ID=15892182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16975283A Pending JPS6061919A (en) 1983-09-14 1983-09-14 Magnetic storage medium

Country Status (1)

Country Link
JP (1) JPS6061919A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103838A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium
JPS62103824A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103838A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium
JPS62103824A (en) * 1985-10-31 1987-05-14 Sony Corp Magnetic recording medium

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