JPS62261726A - Shue for friction material - Google Patents
Shue for friction materialInfo
- Publication number
- JPS62261726A JPS62261726A JP10426686A JP10426686A JPS62261726A JP S62261726 A JPS62261726 A JP S62261726A JP 10426686 A JP10426686 A JP 10426686A JP 10426686 A JP10426686 A JP 10426686A JP S62261726 A JPS62261726 A JP S62261726A
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- base plate
- metallic base
- triiron tetroxide
- shoe
- 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
- 239000002783 friction material Substances 0.000 title claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 53
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 150000004767 nitrides Chemical class 0.000 claims abstract description 6
- 230000003746 surface roughness Effects 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 23
- 238000005121 nitriding Methods 0.000 abstract description 15
- 150000003839 salts Chemical class 0.000 abstract description 14
- 238000005260 corrosion Methods 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 239000002344 surface layer Substances 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- YYXHRUSBEPGBCD-UHFFFAOYSA-N azanylidyneiron Chemical compound [N].[Fe] YYXHRUSBEPGBCD-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005304 joining Methods 0.000 abstract description 2
- 238000011282 treatment Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000013040 bath agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000001913 cyanates Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- -1 steel Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は摩擦材用シｌ−１特に車輌用ディスクブレーキ
およびドラムブレーキ等に用いられるシユーの摩擦材が
接合される裏金の耐食性の改良に６０１する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention is directed to improving the corrosion resistance of the backing metal to which the friction material of shoe friction material 1-1 is bonded, especially for use in vehicle disc brakes, drum brakes, etc. 601.
［従来の技１ｊｌ
一般に摩擦材が接合される裏金の接合開部分の防錆のた
めの処理技術としては、裏金の接合面に施されるプライ
マー処理や持分［５３−４７２１８に報告されているよ
うに裏金の表向にＦｅ−Ｃ−Ｎ系化合物層を形成するガ
ス窒化処理が知られている。[Conventional Techniques 1jl In general, treatment techniques for rust prevention of the joint open portion of the backing metal to which the friction material is joined include primer treatment applied to the joining surface of the backing metal, and equity [as reported in 53-47218] A gas nitriding process is known in which a Fe--C--N compound layer is formed on the surface of the back metal.
［本発明によって解決される同題点］
しかしながらプライマー処理ではブレーキを寒冷地、海
岸に近い地域あるいは多湿地域等で長時園使用している
と、裏金と摩擦材との接合面から錆が進行するという不
具合が生じる。また軟窒化処理は、プライマー処理に比
較して耐食性が向上することが知られているが、摩擦材
にセミメタリック材を用いた場合には、摩擦材の摩耗寿
命が長くなるため、裏金の耐食性が摩擦材の耐久性に比
べ十分であるとはいえない。[Same problem solved by the present invention] However, with primer treatment, if the brake is used for a long time in a cold region, near the coast, or in a humid region, rust will progress from the joint surface between the back metal and the friction material. This causes a problem. Furthermore, soft nitriding treatment is known to improve corrosion resistance compared to primer treatment, but when a semi-metallic material is used for the friction material, the wear life of the friction material becomes longer, so the corrosion resistance of the backing metal increases. cannot be said to be sufficient compared to the durability of friction materials.
本発明は上記の欠点を克服せんとし、摩擦材が接合され
る裏金接合面に軟窒化処理を行なった後四三酸化鉄形成
処理を行なうことにより軟窒化処理だけによるものより
もさらに耐食性を向上させ、安定した性能をもつ摩擦材
用シューを提供することを目的とする。The present invention aims to overcome the above-mentioned drawbacks and improves corrosion resistance even more than that achieved by soft nitriding alone by performing soft nitriding on the joint surface of the backing metal to which the friction material is joined, followed by triiron tetroxide forming treatment. The purpose of this invention is to provide a shoe for friction materials with stable performance.
［問題点を解決するための手段１
本発明の摩擦材用シューは、鉄系金属からなる裏金とそ
の裏金に一体的に接合された摩擦材とからなり、裏金の
摩擦材の接合された表面部分は、窒化物を含む内部層と
その内部層の表面に一体的に形成された四三酸化鉄を含
む凹凸をもつ表面層からなり、摩擦材は表皮層の表面に
接着剤により一体的に接合されていることを特徴とする
ものである。[Means for Solving the Problems 1] The friction material shoe of the present invention consists of a back metal made of iron-based metal and a friction material integrally bonded to the back metal, and the surface of the back metal to which the friction material is bonded is The part consists of an inner layer containing nitride and an uneven surface layer containing triiron tetroxide formed integrally on the surface of the inner layer, and the friction material is integrally formed on the surface of the skin layer with an adhesive. It is characterized by being joined.
本発明では、裏金に軟窒化処理を行なった後、四三酸化
鉄形成処理をすることにより、裏金表面部分の化合物層
中の酸素ポテンシャルが高められ、裏金の耐食性が向上
する。In the present invention, the oxygen potential in the compound layer on the surface of the backing metal is increased by subjecting the backing metal to soft nitriding treatment and then to the triiron tetroxide forming treatment, thereby improving the corrosion resistance of the backing metal.
ここで裏金は、一般に自動車用ディスクブレーキあるい
はドラムブレーキ等に用いられるもので、ブレーキ圧力
を摩擦材に伝達する作用をする。裏金の材質としては一
般にスチール等の鉄系金属が使用され、本発明に使用さ
れる裏金も鉄系金属で構成されている。また摩擦材は、
ブレーキディスクやブレーキドラムに押・し付けられて
制動力を生むものである。本発明のＩＩ！擦材としては
通常の有機系、無機系あるいは金属系を問わず従来のも
のをそのまま使用することができる。ＷＩ擦材を裏金に
接合するための接着剤についても、通常の裏金と摩擦材
の接合に用いられるものであれば、その種類を問わない
。The back metal is generally used in automobile disc brakes or drum brakes, and functions to transmit brake pressure to the friction material. The backing metal is generally made of iron-based metals such as steel, and the backing metal used in the present invention is also made of iron-based metals. In addition, the friction material is
It is pressed against the brake disc or brake drum to generate braking force. II of the present invention! As the rubbing material, any conventional material can be used as is, regardless of whether it is organic, inorganic, or metallic. The adhesive for bonding the WI friction material to the back metal may be of any type as long as it is commonly used for bonding the back metal and the friction material.
本発明を特色づける、裏金は、軟窒化処理を施した後、
四三酸化鉄形成処理を施したものである。The backing metal, which characterizes the present invention, is subjected to soft nitriding treatment, and then
It is treated to form triiron tetroxide.
このため裏金の表面部分は鉄−窒素（Ｆｅ−Ｎ）系化合
物を主とする内部層と該内部層の表面に一体的に形成さ
れた四三酸化鉄を含む凹凸をもつ表皮層とからなる。軟
窒化処理としては塩浴軟窒化処理が代表的な処理方法で
通常店〈実施されている。この塩浴軟窒化処理は主とし
てシアン塩（ＭＣＮ）とシアン酸塩（ＭＯＮＯ）の塩浴
槽（５７０℃〜６１０℃）に４０分〜１５０分間鉄系金
属を保持し、その表面部分にＦｅ−Ｎ−Ｃの化合物層を
形成する方法である。この場合、一般的に処理８１１１
が＾くなるほど、または処理時間が長くなる程、あるい
はシアン塩およびシアン酸塩濃度が高くなる程、化合物
層が厚くかつ表面の凹凸は深くなる傾向にある。このよ
うに裏金に軟窒化処理を施して裏金表面に窒素あるいは
窒素と炭素を拡散させた、裏金表面部にＦｅ−Ｎあるい
はＦｅ−Ｃ−Ｎ系を主体とする化合物層をを形成する。Therefore, the surface part of the backing metal consists of an inner layer mainly made of iron-nitrogen (Fe-N) based compounds and a surface layer with irregularities containing triiron tetroxide formed integrally on the surface of the inner layer. . As the soft nitriding treatment, salt bath soft nitriding treatment is a typical treatment method and is usually carried out in shops. This salt bath nitrocarburizing treatment mainly involves holding iron-based metals in a salt bath (570°C to 610°C) of cyanide salt (MCN) and cyanate salt (MONO) for 40 to 150 minutes, and then Fe-N This is a method of forming a compound layer of -C. In this case, generally the process 8111
The compound layer tends to be thicker and the surface irregularities tend to become deeper as the temperature increases, the longer the treatment time, or the higher the cyanate and cyanate concentration. In this manner, the backing metal is subjected to soft nitriding treatment to diffuse nitrogen or nitrogen and carbon onto the backing metal surface, thereby forming a compound layer mainly composed of Fe-N or Fe-C-N system on the backing metal surface.
化合物層の厚さは少なくとも５μ、好ましくは１０μ以
上であるのがよい。The thickness of the compound layer is preferably at least 5μ, preferably 10μ or more.
四三酸化鉄形成処理は軟窒化処理で得られた窒化物含有
層の表面に酸素を供給し、その表面部に四三酸化鉄を含
む表面層を形成するとともに表面の凹凸を大きくするも
のである。四三酸化鉄形成処理としては加熱水蒸気を使
用する方法、特殊塩浴を使用る方法等従来の四三酸化鉄
形成処理をそのまま使用できる。得られる四三酸化鉄を
含む表面層の厚さは表面の凹凸が激しいために測定が困
難であるが窒化物含有層の１／４〜１／２程度の厚さと
するのが良い。Triiron tetroxide forming treatment supplies oxygen to the surface of the nitride-containing layer obtained by soft nitriding, forming a surface layer containing triiron tetroxide on the surface and increasing the surface roughness. be. As the triiron tetroxide forming treatment, conventional triiron tetroxide forming treatments such as a method using heated steam or a method using a special salt bath can be used as is. Although it is difficult to measure the thickness of the resulting surface layer containing triiron tetroxide, since the surface is extremely uneven, it is preferably about 1/4 to 1/2 the thickness of the nitride-containing layer.
以上のように摩擦材用シューの裏金に軟窒化処理を施し
た後、続けて四三酸化鉄形成処理を施すことにより、裏
金の窒化物含有層に表面粗さが３〜６０μｍの凹凸をも
つ四三酸化鉄層が形成され、裏金と摩擦材との接着性が
優れ更に裏金の耐食性（実施例１）
ブレーキパッドに使用ｊる材質として５ＨＰ４５を用い
た裏金を準備した。この裏金をシアン塩とシアン酸塩か
らなる塩浴槽中で５８０℃で６０分間熱処理した。これ
により表面に３〜１５ミクロン程度の凹凸のある厚さ約
１０ミクロンの軟窒化層が形成された。次に塩浴剤にＮ
ａＯＨ又はＫＯＨを用いた塩浴中に浸漬し、温度３７０
℃で２０分間処理した。これにより軟窒化層の表面に四
三酸化鉄を含む層を形成するとともに表面の凹凸を大き
くした。この四三酸化鉄を含む層は表面の凹凸にそって
形成され、その厚さは約１２ミクロン、凹凸の入門さく
山から谷までの高さ方向の長さ）は２５ミクロン程度で
あった。得られた裏金表面部の金属組織の断面顕微鏡写
真を第１図に示す。また、本実施例の処理条件および得
られた被膜層の物性値を第１表に示す。次にこの裏金を
用い摩擦材（アスベスト３８重量％、フェノール樹脂１
２１量％、無機充填材１０重量％、潤滑剤１０重量％、
金属粉１０垂量％）を用いフェノール樹脂系の接着剤を
使用して接着し摩擦材用シューを製造した。As described above, after the soft nitriding treatment is applied to the backing metal of the friction material shoe, the nitride-containing layer of the backing metal is made to have irregularities with a surface roughness of 3 to 60 μm. A triiron tetroxide layer was formed, and the adhesiveness between the back metal and the friction material was excellent, and the back metal had corrosion resistance (Example 1) A back metal using 5HP45 as a material for use in a brake pad was prepared. This back metal was heat-treated at 580° C. for 60 minutes in a salt bath containing cyan salt and cyanate. As a result, a nitrocarburized layer having a thickness of approximately 10 microns and having irregularities of approximately 3 to 15 microns was formed on the surface. Next, add N to the salt bath agent.
Immersed in a salt bath with aOH or KOH, temperature 370
℃ for 20 minutes. As a result, a layer containing triiron tetroxide was formed on the surface of the soft nitrided layer, and the surface roughness was increased. This layer containing triiron tetroxide was formed along the surface irregularities, and its thickness was about 12 microns, and the length in the height direction from the ridges to the valleys of the irregularities was about 25 microns. A cross-sectional micrograph of the metal structure of the surface of the backing metal obtained is shown in FIG. Further, Table 1 shows the processing conditions of this example and the physical property values of the obtained coating layer. Next, using this back metal, friction material (asbestos 38% by weight, phenolic resin 1%
21% by weight, 10% by weight of inorganic filler, 10% by weight of lubricant,
A shoe for a friction material was manufactured by adhering metal powder (10% by weight) using a phenolic resin adhesive.
次にこの摩擦材用シューの耐食性を調べるため塩水噴霧
試験を実施した。この塩水噴霧試験は塩としてＮａＣλ
を使用し、濃度５重量％の塩水を７２５量間噴霧した後
室温放置２４時間して１サイクルと１６ものである。こ
こでは５０サイクルまで実施し、１０．２０，３０，４
０．５０の各サイクルの試験を実施したものを摩擦材を
はがして錆の発生面積（％）および接着面積を測定した
。Next, a salt spray test was conducted to examine the corrosion resistance of this shoe for friction materials. This salt spray test uses NaCλ as a salt.
After spraying 725 volumes of salt water with a concentration of 5% by weight, it was left to stand at room temperature for 24 hours, resulting in 1 cycle and 16 cycles. Here, we performed up to 50 cycles, 10.20, 30, 4
The friction material was removed from the test pieces that had been tested for each cycle of 0.50, and the area where rust occurred (%) and the adhesion area were measured.
結果を第２表に示す。The results are shown in Table 2.
第 １ 表
（実施例２）
裏金および摩ｗＸ材として実施例１のものと同一のもの
を使用し、表面処理条件のみを第１表に示すように変更
してｒＩＪＩＩＩ材用シューを製造した。この摩擦材用
シューについても実施例１と同様に塩第 ２ 表
哨
％
％
％
％
％
水噴霧試験を実施しその耐食性を測定した。結果を第２
表に合せて示す。Table 1 (Example 2) A shoe for rIJIII material was manufactured using the same back metal and wX material as in Example 1, and only the surface treatment conditions were changed as shown in Table 1. Similar to Example 1, this shoe for friction material was also subjected to a salt water spray test to measure its corrosion resistance. Second result
Shown in the table.
（比較例）
比較例として、実施例１．２と同じ裏金および摩擦材用
シューを使用し裏金の表面処理を第１表に示１軟窒化処
理のみとし、他の製造方法等の条件を実施例１および２
と同一にして摩擦材用シューをＩＮ造した。この比較例
の摩擦材用シューについても実施例と同様にしてその耐
食性を測定した。(Comparative example) As a comparative example, the same backing metal and friction material shoe as in Example 1.2 were used, the surface treatment of the backing metal was only the soft nitriding treatment shown in Table 1, and conditions such as other manufacturing methods were carried out. Examples 1 and 2
A shoe for friction material was manufactured in the same way as the above. The corrosion resistance of the friction material shoe of this comparative example was also measured in the same manner as in the example.
−〇 −
結果を第２表に合せて示す。また、この比較例の裏金の
断面の金属組織の顕微鏡写真図を第２図に示す。−〇 − The results are shown in Table 2. Further, a microscopic photograph of the metal structure of the cross section of the back metal of this comparative example is shown in FIG.
次にブレーキ材としての耐食試験を行なった。Next, a corrosion resistance test was conducted as a brake material.
その結果を第２表に示す。The results are shown in Table 2.
第２表からもわかるように、実施例１．２の摩擦材シュ
ーは比較例の摩擦材シューに比べ、接着面積率が高く安
定し、また裏金表面における錆の発生面積率も極めて小
さいことが認められた。As can be seen from Table 2, the friction material shoe of Example 1.2 has a higher adhesive area ratio and is more stable than the friction material shoe of the comparative example, and the area ratio of rust on the backing metal surface is also extremely small. Admitted.
［効果］
以上本発明の摩擦材用シューはその裏金の摩擦材との接
着接合面に軟窒化処理層およびその表面に凹凸の大きい
四三酸化鉄を含む表面層をもっている。このため裏金と
摩擦材との接着性に優れ、耐食性が向上し、より安定し
た性能をもつ摩擦材用シューとなっている。[Effects] The shoe for a friction material of the present invention has a nitrocarburized layer on the adhesive bonding surface of the back metal with the friction material, and a surface layer containing triiron tetroxide with large irregularities on the surface thereof. For this reason, the shoe for friction materials has excellent adhesion between the back metal and the friction material, improved corrosion resistance, and more stable performance.
第１図は本発明の実施例１の摩擦材用シューの裏金表面
部の断面の金属組織を示す顕微鏡写真図である。第２図
は比較例の摩擦材用シューの軟窒化処理のみを行った裏
金表面部の断面の金属組織を示す顕微鏡写真図である。
特許出願人 アイシン化工株式会社
代理人 弁理士 大川 宏
同 弁理士 丸山明夫
第１図
第２図FIG. 1 is a microscopic photograph showing a cross-sectional metal structure of the surface portion of the backing metal of a shoe for friction material according to Example 1 of the present invention. FIG. 2 is a micrograph showing the metal structure of a cross section of the back metal surface portion of a shoe for a friction material of a comparative example, which was subjected to only nitrocarburizing treatment. Patent applicant: Aisin Kako Co., Ltd. Agent: Patent attorney: Hirodo Okawa Patent attorney: Akio Maruyama Figure 1 Figure 2
Claims (2)
れた摩擦材とからなる摩擦材用シューにおいて、 該裏金の該摩擦材の接合された表面部分は窒化物を含む
内部層と該内部層の表面に一体的に形成された四三酸化
鉄を含む凹凸をもつ表皮層とからなり、 該摩擦材は該表皮層表面に接着剤により一体的に接合さ
れていることを特徴とする摩擦材用シュー。(1) In a friction material shoe consisting of a back metal made of ferrous metal and a friction material integrally joined to the back metal, the surface portion of the back metal to which the friction material is bonded has an inner layer containing nitride. It consists of a skin layer having irregularities containing triiron tetroxide integrally formed on the surface of the inner layer, and the friction material is integrally bonded to the surface of the skin layer with an adhesive. A shoe for friction materials.
許請求の範囲第１項記載の摩擦材用シュー。(2) A shoe for a friction material according to claim 1, wherein the surface roughness of the irregularities of the skin layer is 3 to 60 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10426686A JPS62261726A (en) | 1986-05-07 | 1986-05-07 | Shue for friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10426686A JPS62261726A (en) | 1986-05-07 | 1986-05-07 | Shue for friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62261726A true JPS62261726A (en) | 1987-11-13 |
Family
ID=14376124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10426686A Pending JPS62261726A (en) | 1986-05-07 | 1986-05-07 | Shue for friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62261726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120135087A (en) * | 2011-06-03 | 2012-12-12 | 닛신보 브레이크 가부시키가이샤 | Brake pad backing plate and brake pad usung the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5745939A (en) * | 1980-09-02 | 1982-03-16 | Toshiba Corp | Semiconductor device |
-
1986
- 1986-05-07 JP JP10426686A patent/JPS62261726A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5745939A (en) * | 1980-09-02 | 1982-03-16 | Toshiba Corp | Semiconductor device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120135087A (en) * | 2011-06-03 | 2012-12-12 | 닛신보 브레이크 가부시키가이샤 | Brake pad backing plate and brake pad usung the same |
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