JPH0472099A - Production of aluminum substrate for printing plate - Google Patents
Production of aluminum substrate for printing plateInfo
- Publication number
- JPH0472099A JPH0472099A JP18147890A JP18147890A JPH0472099A JP H0472099 A JPH0472099 A JP H0472099A JP 18147890 A JP18147890 A JP 18147890A JP 18147890 A JP18147890 A JP 18147890A JP H0472099 A JPH0472099 A JP H0472099A
- Authority
- JP
- Japan
- Prior art keywords
- hydrochloric acid
- electrolytic
- aluminum
- printing plate
- roughening
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000758 substrate Substances 0.000 title abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000007788 roughening Methods 0.000 claims abstract description 31
- 229910001415 sodium ion Inorganic materials 0.000 claims abstract description 10
- 239000008151 electrolyte solution Substances 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 17
- 239000003792 electrolyte Substances 0.000 description 11
- -1 ammonium ion compound Chemical class 0.000 description 4
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は印刷版用アルミニウム支持体の製造方法に関す
るものであり、詳しくはアルミニウム板（アルミニウム
合金を含む）の表面を電気化学的に粗面化処理する方法
に関するもので、特にオフセット印刷版用に適する均一
なハニカム構造に粗面化されたアルミニウム板からなる
印刷版用アルミニウム支持体の製造方法に関するもので
ある。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for producing an aluminum support for printing plates, and more specifically, the present invention relates to a method for producing an aluminum support for printing plates, and more specifically, the present invention relates to a method for producing an aluminum support for printing plates. The present invention relates to a method of chemical treatment, and in particular to a method of producing an aluminum support for a printing plate comprising an aluminum plate roughened into a uniform honeycomb structure suitable for use in offset printing plates.
従来より、オフセット印刷版用支持体としてアルミニウ
ムが使用されているが、その表面は、その上に設けられ
る感光層との密着性を良好にすることと、印刷時に使用
する湿し水を保持することなどを目的として粗面化され
るのが通例である。Aluminum has traditionally been used as a support for offset printing plates, and its surface has the advantage of providing good adhesion with the photosensitive layer provided on it and retaining the dampening water used during printing. The surface is usually roughened for various purposes.
かかる粗面化方法として、ボールダレイン、ワイヤーダ
レイン、ブラシグレイン等の機械的な粗面化方法が知ら
れているが、近年、塩酸、硝酸などの酸性電解液中でア
ルミニウム板に交流電流を流すことにより、アルミニウ
ム板の表面を電気化学的に粗面化処理をする電解粗面化
方法が注目されている。Mechanical surface roughening methods such as boulder graining, wire graining, and brush graining are known as such surface roughening methods. An electrolytic surface roughening method in which the surface of an aluminum plate is electrochemically roughened by flowing .
この電解粗面化方法によれば、従来の機械的粗面化方法
に比べて平均粗さ分布の小さな均一な粗面を有するアル
ミニウム板が得られるが、そのような粗面を得るための
条件は極めて狭く、電解液の組成、温度、電解条件など
の諸条件を一定に維持して置けば、製品のバラツキも極
めて少なく均一な性能を有するものを容易に得ることが
出来る。According to this electrolytic surface roughening method, an aluminum plate having a uniformly roughened surface with a smaller average roughness distribution can be obtained compared to the conventional mechanical roughening method, but the conditions for obtaining such a roughened surface are is extremely narrow, and if various conditions such as electrolyte composition, temperature, and electrolytic conditions are kept constant, products with very little variation and uniform performance can be easily obtained.
［発明が解決しようとする！ｉＢ］
電解粗面化処理の前にはアルミニウム板表面から圧延油
や自然酸化皮膜の除去をおこなうのが常法であり、アル
カリエツチングしたあと電解粗面化をおこなう方法（特
開昭５４−６５６０７号公報）や、中性塩水溶液中でア
ルミニウム板を陰極電解処理したあとに、電解粗面化を
おこなう方法（特願平１−２６５２８７号明細書）など
が知られている。[Invention tries to solve! iB] Before electrolytic surface roughening treatment, it is a conventional method to remove rolling oil and natural oxide film from the surface of an aluminum plate. (Japanese Patent Application No. 1-265287), and a method in which an aluminum plate is subjected to cathodic electrolytic treatment in a neutral salt aqueous solution and then subjected to electrolytic surface roughening (Japanese Patent Application No. 1-265287).
塩酸を主体とする電解液中での電解粗面化処理工程によ
って得られるピットの直径は約１０−以上の径の、比較
的浅いクレータ−状ピットであるのが通例である。塩酸
を主体とする電解液中での電解粗面化処理したときに、
比較的小径のピントを得ようとしたとき、米国特許第４
．５４８，６８３号明細書に記載のように粗面化に用い
る電解電源の周波数を高くしたり、米国特許第４．６６
６．５７６号明細書に記載のようにアンモニウムイオン
化合物を添加する方法があった。しかしながら前記の方
法では充分に深いピットを得ることはできなかった。The pits obtained by the electrolytic surface roughening process in an electrolytic solution mainly containing hydrochloric acid are usually relatively shallow crater-like pits with a diameter of about 10 mm or more. When subjected to electrolytic surface roughening treatment in an electrolyte containing mainly hydrochloric acid,
When trying to focus on a relatively small diameter, U.S. Patent No. 4
．． As described in US Pat. No. 548,683, the frequency of the electrolytic power source used for surface roughening is increased;
There was a method of adding an ammonium ion compound as described in No. 6.576. However, with the above method, it was not possible to obtain sufficiently deep pits.
〔課題を解決するための手段］
本発明者らは鋭意研究の結果、塩酸を主体とした電解液
中での電解粗面化で、その塩酸を主体とする電解液中に
添加するナトリウムイオンの塩酸電解液中への含有量を
１０〜２０ ｇ／ｌとすることで、直径に比してピット
の深い均一な粗面を有するアルミニウム板を得ることが
可能となった。[Means for Solving the Problem] As a result of intensive research, the present inventors have found that by electrolytic surface roughening in an electrolytic solution mainly composed of hydrochloric acid, it is possible to reduce the amount of sodium ions added to the electrolytic solution mainly composed of hydrochloric acid. By setting the content in the hydrochloric acid electrolyte to 10 to 20 g/l, it became possible to obtain an aluminum plate having a uniform rough surface with deep pits compared to the diameter.
本発明の目的は平坦面に、その直径に比して充分な深さ
を有するピットを均一に得ることを目的とした印刷版用
支持体の電解粗面化方法を提供するところにある。An object of the present invention is to provide a method for electrolytically roughening a printing plate support, the purpose of which is to uniformly obtain pits on a flat surface having a sufficient depth relative to the diameter thereof.
本発明の上記目的は塩酸を主体とする電解液中で、交流
または直流を用いてアルミニウム板に対して電気化学的
に粗面化処理をおこなう印刷版用アルミニウム支持体の
粗面化処理をおこなう印刷版用アルミニウム支持体の粗
面化方法において塩酸を主体とする電解液中に持ち込ま
れるナトリウムイオンの濃度を１０〜２０ｇ／ｊ！の範
囲に調整することを特徴とする印刷版用アルミニウム支
持体の製造方法によって解決される。The above object of the present invention is to perform a surface roughening treatment of an aluminum support for a printing plate by electrochemically roughening an aluminum plate using alternating current or direct current in an electrolytic solution mainly containing hydrochloric acid. In a method for roughening an aluminum support for printing plates, the concentration of sodium ions introduced into an electrolytic solution mainly composed of hydrochloric acid is 10 to 20 g/j! The problem is solved by a method for manufacturing an aluminum support for printing plates, which is characterized by adjusting the aluminum support to a range of .
本発明の方法は塩酸を主体とする電解質を使用し、その
電解液中のナトリウムイオン濃度をナトリウム塩の添加
物を加え、または前処理工程からのナトリウムイオンの
持込みによって、ある一定の濃度範囲内に調整すること
が特徴である。The method of the present invention uses an electrolyte mainly composed of hydrochloric acid, and the sodium ion concentration in the electrolyte is controlled within a certain concentration range by adding sodium salt additives or bringing in sodium ions from a pretreatment process. It is characterized by being adjusted to.
本発明における印刷版用アルミニウム支持体の電解条件
としてとくに有利な条件は次の通りである。塩酸濃度は
５〜１５ｇ／ｊ！、アルミニウム板中には鉄、銅、マン
ガン、マグネシウム等が含まれていてもよい、また特願
平１−５６３７７号明細書で開示されているように、ア
ンモニウムイオンが含まれている電解液でもよい。Particularly advantageous electrolysis conditions for the aluminum support for printing plates in the present invention are as follows. Hydrochloric acid concentration is 5-15g/j! The aluminum plate may contain iron, copper, manganese, magnesium, etc., and as disclosed in Japanese Patent Application No. 1-56377, an electrolyte containing ammonium ions may also be used. good.
本発明において交流を用いて酸性電解液中で電気化学的
に粗面化するということは金属イオンを含む酸性電解液
中でアルミニウム板と対極との間に交流電流を供給して
電気化学的な粗面化処理を施すことをいう０本発明でい
う酸性電解液とは通常の交流を用いた電気化学的な粗面
化に用いるものがいずれも使用できるが、特に好適なも
のは塩酸を５〜１５ ｇ＃！含有する液であり、これら
の液に硝酸アルミニウム、塩化アルミニウム、硝酸アン
モニウム、塩化アンモニウム、硝酸マンガン、塩化マン
ガン、硝酸鉄、塩化鉄などのＮ０１−またはＣ１−を含
む塩類を添加してもよい、そのほか電解液中の微量成分
としてアルミニウム板から熔は出す金属イオンを添加し
てより安定的に粗面化をおこなえるようにしてもよいこ
とはもちろんである。電解処理時間は、長過ぎても短か
過ぎても最適な粗面が得られず５〜９０秒が好ましい。In the present invention, electrochemical roughening in an acidic electrolyte using alternating current means that alternating current is supplied between the aluminum plate and the counter electrode in an acidic electrolyte containing metal ions. The acidic electrolyte referred to in the present invention can be any one used for electrochemical surface roughening using ordinary alternating current, but a particularly preferred one is one in which hydrochloric acid is added to ~15 g#! Salts containing N01- or C1- such as aluminum nitrate, aluminum chloride, ammonium nitrate, ammonium chloride, manganese nitrate, manganese chloride, iron nitrate, iron chloride, etc. may be added to these liquids. Of course, metal ions released from the aluminum plate may be added as a trace component to the electrolytic solution to more stably roughen the surface. If the electrolytic treatment time is too long or too short, an optimum rough surface will not be obtained, so 5 to 90 seconds is preferable.
ｉｔ流重密度２０＝１００Ａ／ｄｍ”が好ましい。It is preferable that the current density is 20=100 A/dm.
液温は３０〜６０°Ｃが好ましい、Ｉ１１面化に用いる
電源は交流でも直流でも良いが、連続的に直流を用いて
粗面化処理をおこなうときは陽極と陰極を交互に配列す
る方法が好ましい。The liquid temperature is preferably 30 to 60°C.The power source used for I11 surface roughening may be AC or DC, but when roughening the surface using continuous DC, it is recommended to alternately arrange the anode and cathode. preferable.
交流を用いて粗面化をおこなうときは粗面化に使用する
電源の周波数としては電解液の種類によって０．１〜４
００Ｈｚまで幅広く選択できる。周波数は５０〜１４０
Ｈｚが好ましく、電源波形としてはデユーティ比１：１
の短形波を用いることが設備上望ましい、波形歪は時定
数で表わすと、２１Ｉｓｅｃ以下が良い０本発明でいう
、アルミニウム板に交流電流を供給する対極としてはカ
ーボンが好ましい。When roughening the surface using alternating current, the frequency of the power source used for surface roughening is 0.1 to 4 depending on the type of electrolyte.
You can select from a wide range up to 00Hz. Frequency is 50-140
Hz is preferable, and the power supply waveform has a duty ratio of 1:1.
It is desirable for the equipment to use a rectangular wave of 21 Isec or less when expressed as a time constant. In the present invention, carbon is preferable as the counter electrode for supplying alternating current to the aluminum plate.
本発明は電解粗面化に関するものであり、特公昭５７−
１６９１８号公報に記されているような機械的粗面化と
電解粗面化を組み合わせた方法にも適応できることはい
うまでもない。The present invention relates to electrolytic surface roughening.
Needless to say, it is also applicable to a method that combines mechanical surface roughening and electrolytic surface roughening as described in Japanese Patent No. 16918.
［実施例１］
ＪＩ３１０５０アルミニウム板を苛性ソーダ水溶液で洗
浄し、水洗した。このアルミニウム板を塩酸濃度１２．
５ｇ／／！、アルミニウムイオン濃度５ｇ／ｊ！の電解
液中３５°Ｃで電流密度３５Ａ／ｄｍ２で１１．５秒間
電解粗面化処理をおこなった。[Example 1] A JI31050 aluminum plate was washed with a caustic soda aqueous solution and then with water. This aluminum plate was washed with hydrochloric acid at a concentration of 12.
5g //! , aluminum ion concentration 5g/j! Electrolytic surface roughening treatment was carried out in an electrolytic solution at 35°C for 11.5 seconds at a current density of 35 A/dm2.
このとき、塩酸電解液中のナトリウムイオン濃度をＯｇ
／４１！ないし１６ ｇ＃！と変化させたところ、結果
は第１表に示す通りになった。At this time, the sodium ion concentration in the hydrochloric acid electrolyte is Og
/41! or 16 g#! The results were as shown in Table 1.
この場合の電解条件としては、塩酸濃度１２．５ｇ／ｌ
、アルミニウムイオン濃度５ｇ／ｌ、液温３５℃、電流
密度３５Ａ／ｄｍ”、電解時間１１゜５秒は共通条件で
あった。In this case, the electrolytic conditions are as follows: hydrochloric acid concentration: 12.5 g/l
The common conditions were an aluminum ion concentration of 5 g/l, a liquid temperature of 35°C, a current density of 35 A/dm'', and an electrolysis time of 11°5 seconds.
また、粗面化に用いた交流電源の周波数は６０Ｈｚであ
った。Further, the frequency of the AC power source used for surface roughening was 60 Hz.
第１表より明らかなように、ナトリウムイオンが１０〜
１６ ｇ／／！ （Ｎｏ、６〜Ｎｏ、８）のとき平坦
部に均一に生成した直径が５−程度の均一なピットを得
ることが可能となった。As is clear from Table 1, sodium ions are 10~
16 g//! In the case of (No. 6 to No. 8), it became possible to obtain uniform pits having a diameter of approximately 5-10 mm, which were uniformly generated on the flat portion.
第１表
［発明の効果］
本発明に記したように、塩酸を主体とした電解液中で交
流を用いてアルミニウム板またはアルミニウム合金を電
解粗面化するにあたり、電解液中のナトリウムイオン濃
度を１０〜２０ ｇ／ｌに限定することで印刷版用支持
体として好適な粗面を得ることが可能になった。Table 1 [Effects of the Invention] As described in the present invention, when electrolytically roughening an aluminum plate or aluminum alloy using alternating current in an electrolytic solution mainly composed of hydrochloric acid, the sodium ion concentration in the electrolytic solution is By limiting the amount to 10 to 20 g/l, it became possible to obtain a rough surface suitable as a support for printing plates.
品質等級 Ａ：均一 Ｂ：やや均−Ｃ：不均一
粗面化形状の観察は、日本電子製走査型電子顕微鏡ＪＳ
Ｍ−Ｔ２２０Ａを用いておこなった。なお、観察に際し
電解粗面化後の アルミニウム板を硫酸水溶液３００
ｇ７Ｎ、６０°Ｃに１２０秒間浸漬した後に水洗し、電
解粗面化で生成した水酸化アルミニウムを除去した。Quality grade A: Uniform B: Slightly uniform - C: Observation of non-uniform roughened surface shape using JEOL scanning electron microscope JS
This was done using M-T220A. In addition, during observation, the aluminum plate after electrolytic roughening was soaked in a sulfuric acid aqueous solution of 300 ml.
g7N at 60°C for 120 seconds and then washed with water to remove aluminum hydroxide generated by electrolytic surface roughening.
Claims (1)
粗面化処理をおこなう印刷版用アルミニウム支持体の製
造方法において、前記塩酸を主体とする電解液中に含有
するナトリウムイオンの濃度を１０〜２０ｇ／ｌの範囲
に調整することを特徴とする印刷版用アルミニウム支持
体の製造方法。In a method for producing an aluminum support for a printing plate in which surface roughening treatment is carried out electrochemically using alternating current in an electrolytic solution mainly composed of hydrochloric acid, the concentration of sodium ions contained in the electrolytic solution mainly composed of hydrochloric acid is determined. 1. A method for producing an aluminum support for printing plates, which comprises adjusting the amount of aluminum to a range of 10 to 20 g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18147890A JPH0472099A (en) | 1990-07-11 | 1990-07-11 | Production of aluminum substrate for printing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18147890A JPH0472099A (en) | 1990-07-11 | 1990-07-11 | Production of aluminum substrate for printing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0472099A true JPH0472099A (en) | 1992-03-06 |
Family
ID=16101460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18147890A Pending JPH0472099A (en) | 1990-07-11 | 1990-07-11 | Production of aluminum substrate for printing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0472099A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505675A (en) * | 1993-11-22 | 1996-04-09 | Mazda Motor Corporation | Hydraulic control system of automatic transmission |
| US5667457A (en) * | 1994-01-20 | 1997-09-16 | Mazda Motor Corporation | Hydraulic control system of automatic transmission |
| US6067494A (en) * | 1996-03-15 | 2000-05-23 | Hitachi, Ltd. | Control apparatus and control method for automatic transmission of vehicle |
-
1990
- 1990-07-11 JP JP18147890A patent/JPH0472099A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505675A (en) * | 1993-11-22 | 1996-04-09 | Mazda Motor Corporation | Hydraulic control system of automatic transmission |
| EP0654623A3 (en) * | 1993-11-22 | 1997-02-26 | Mazda Motor | Hydraulic control system for automatic transmission. |
| US5667457A (en) * | 1994-01-20 | 1997-09-16 | Mazda Motor Corporation | Hydraulic control system of automatic transmission |
| US6067494A (en) * | 1996-03-15 | 2000-05-23 | Hitachi, Ltd. | Control apparatus and control method for automatic transmission of vehicle |
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