JP3437630B2 - Welding method for galvanized steel sheet - Google Patents
Welding method for galvanized steel sheetInfo
- Publication number
- JP3437630B2 JP3437630B2 JP05033994A JP5033994A JP3437630B2 JP 3437630 B2 JP3437630 B2 JP 3437630B2 JP 05033994 A JP05033994 A JP 05033994A JP 5033994 A JP5033994 A JP 5033994A JP 3437630 B2 JP3437630 B2 JP 3437630B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- welding
- nozzle
- tip
- electrode
- 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.)
- Expired - Lifetime
Links
Landscapes
- Arc Welding In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は亜鉛めっき鋼板の溶接方
法に関する。The present invention relates to a method for welding galvanized steel sheet.
About the law.
【０００２】[0002]
【従来の技術】従来のプラズマ溶接方法はプラズマガス
としてＡｒガスを０．１〜１．５ｌ／分，シールドガス
としてＡｒガスにＡｒガスの７％の容積のＨ2ガスを加
えたガスを５〜１０ｌ／分供給することによりアークを
絞り、溶接速度を向上させていた。◆また、「溶接技
術」（１９９３年９月号、７５〜８２頁）には、従来の
ティグトーチのノズル内にもう１つのノズルを設け、セ
ンタガスとしてＡｒ＋３．５％ＨｅまたはＡｒ＋５％Ｈ
2を１〜５ｌ／分，シールドガスとしてＡｒを２．５〜
２０ｌ／分として溶接する高速ティグ溶接方法が開示さ
れている。この技術に依れば、アークを絞ることがで
き、２００ｍｍ／分の溶接速度で溶接した例が示されて
いる。2. Description of the Related Art In a conventional plasma welding method, Ar gas is used as a plasma gas in an amount of 0.1 to 1.5 l / min, and as a shielding gas, an Ar gas added with H 2 gas having a volume of 7% of the Ar gas is 5 The arc was narrowed by supplying 10 l / min to improve the welding speed. ◆ In "Welding Technology" (September 1993 issue, pages 75-82), another nozzle is provided in the nozzle of the conventional TIG torch, and Ar + 3.5% He or Ar + 5% H is used as the center gas.
2 to 1 to 5 l / min and Ar to 2.5 to 2.5 as a shielding gas
A high speed TIG welding method for welding at 20 l / min is disclosed. According to this technique, the arc can be narrowed, and an example in which welding is performed at a welding speed of 200 mm / min is shown.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来のプラズ
マトーチは、図３に示すように、ノズル電極１の先端部
に設けた穴２の径が０．２〜２．４ｍｍと細く、しかも
ノズル電極１の先端３とワークとの距離を１〜２ｍｍと
して溶接するため、亜鉛めっき鋼板のように金属蒸気や
ヒュームが多いワークを溶接すると、ノズル電極１の内
外に金属蒸気やヒュームが付着する。この結果、パイロ
ットアークがノズル電極１の内側にこもり、メインアー
クへ移行させることができなくなって、頻繁に保守をし
なければならなかった。なお、４はタングステンの電
極、５はシールドノズル、６は外周にプラズマガスを通
すための溝７を持つ通電ピース、８はＯリング、９はト
ーチボディ、１０はトーチボディ９と一体で外周を被覆
する絶縁物である。◆また、上記高速ティグ溶接方法の
場合、亜鉛めっき鋼板のように金属蒸気が発生しやすい
材料については検討されていない。さらに、従来のティ
グ溶接では電極の先端をノズルの先端に対して３ｍｍ以
上突き出して溶接していたから、溶接速度を向上させる
ことが困難であった。◆本発明の目的は、上記した課題
を解決し、金属蒸気やヒュームが多量に発生する亜鉛め
っき鋼板を能率良く溶接することができる溶接方法およ
びその装置を提供するにある。However, in the conventional plasma torch, as shown in FIG. 3, the diameter of the hole 2 provided at the tip of the nozzle electrode 1 is as small as 0.2 to 2.4 mm, and the nozzle is Since welding is performed with the distance between the tip 3 of the electrode 1 and the work set to 1 to 2 mm, when welding a work having a large amount of metal vapor or fumes such as a galvanized steel plate, the metal vapor or fume adheres to the inside and outside of the nozzle electrode 1. As a result, the pilot arc stays inside the nozzle electrode 1 and cannot be transferred to the main arc, and frequent maintenance is required. In addition, 4 is a tungsten electrode, 5 is a shield nozzle, 6 is an energizing piece having a groove 7 for passing plasma gas on the outer periphery, 8 is an O-ring, 9 is a torch body, 10 is a torch body 9, and the outer periphery is integrated. It is an insulator to cover. ◆ In addition, in the case of the above high-speed TIG welding method, materials such as galvanized steel sheet that easily generate metal vapor have not been studied. Furthermore, in the conventional TIG welding, since the tip of the electrode is projected by 3 mm or more with respect to the tip of the nozzle for welding, it is difficult to improve the welding speed. An object of the present invention is to solve the above-mentioned problems and to provide a welding method and apparatus capable of efficiently welding a galvanized steel sheet in which a large amount of metal vapor and fumes are generated.
【０００４】[0004]
【課題を解決するための手段】上記した課題は、Ａｒガ
スにＡｒガスの１０％の容積のＨ2ガスを加えたガスを
プラズマガスとし、Ａｒガスを前記プラズマガスをシー
ルドするシールドガスとしてプラズマ溶接する亜鉛めっ
き鋼板の溶接方法において、プラズマガスの流路を規制
するノズルを絶縁材で形成されたノズルとし、前記プラ
ズマガスの流速を１０〜２０ｍ／秒とし、電極の先端を
内側ノズルの先端に対して、溶接開始時から溶接終了時
まで、０．５〜−１ｍｍワーク側に突き出すように配置
し、電極の先端とワークとの距離を１〜６ｍｍとして溶
接することにより解決される。Means for Solving the Problems The above-mentioned problems are solved by using a gas obtained by adding H2 gas having a volume of 10% of Ar gas to plasma gas, and using Ar gas as a shield gas for shielding the plasma gas. in the welding method for galvanized steel sheet that Sessu, regulating the passage of the plasma gas
Is a nozzle formed of an insulating material, the flow rate of the plasma gas is 10 to 20 m / sec, and the tip of the electrode is attached to the tip of the inner nozzle from the start of welding to the end of welding.
Up, arranged so as to project 0.5 to-1 mm workpiece side, the distance between the tip of the electrode and the workpiece is solved by welding as 1 to 6 mm.
【０００５】[0005]
【作用】溶接により、金属蒸気やヒュームが発生する
が、電極４やシールドノズル５は汚れず、保守を必要と
しない。Operation: Metal vapor and fumes are generated by welding, but the electrode 4 and the shield nozzle 5 are not contaminated and maintenance is not required.
【０００６】[0006]
【実施例】図１は本発明の一実施例を示すプラズマトー
チの先端部拡大図、図２はプラズマ溶接装置の構成図で
ある。なお、図３と同じものは同一の符号を付してあ
る。同図において、１１はプラズマトーチ。１２はノズ
ルで、キャップ１３に螺合している。なお、ノズル１２
の内径は一様である。そして、キャップ１３はトーチボ
ディ９に螺合している。１４はカラー。１５は先端にス
リットを持つコレット。１６はシールドガスの供給穴。
１７はプラズマガスの供給穴。２０，２１は電磁弁、２
２〜２４は流量調整弁。２５，２６はＡｒガスボンベ、
２７はＨ2ガスボンベ、２８はガス混合器である。３０
は外部特性が定電流特性の直流電源で、高周波電源装置
３１を備えている。なお、直流電源３０の無負荷電圧は
１００Ｖで、無負荷電圧が６０Ｖ程度である従来のティ
グ溶接電源あるいは無負荷電圧が６０〜８５Ｖである従
来のプラズマ溶接電源よりも高くしてある。３２は制御
装置で、図示しない操作スイッチからの信号により電磁
弁２０，２１、直流電源３０および高周波電源装置３１
の出力制御を行う。３３はワークである。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged view of the tip of a plasma torch showing an embodiment of the present invention, and FIG. 2 is a block diagram of a plasma welding apparatus. The same parts as those in FIG. 3 are designated by the same reference numerals. In the figure, 11 is a plasma torch. A nozzle 12 is screwed into the cap 13. The nozzle 12
Has a uniform inner diameter. The cap 13 is screwed onto the torch body 9. 14 is a color. 15 is a collet with a slit at the tip. 16 is a shield gas supply hole.
Reference numeral 17 is a plasma gas supply hole. 20, 21 are solenoid valves, 2
2 to 24 are flow rate adjusting valves. 25 and 26 are Ar gas cylinders,
27 is an H 2 gas cylinder, and 28 is a gas mixer. Thirty
Is a DC power supply whose external characteristics are constant current characteristics, and includes a high frequency power supply device 31. The DC power source 30 has a no-load voltage of 100 V, which is higher than that of a conventional TIG welding power source having a no-load voltage of about 60 V or a conventional plasma welding power source having a no-load voltage of 60 to 85 V. Reference numeral 32 denotes a control device, which controls electromagnetic valves 20, 21, the DC power supply 30, and the high-frequency power supply device 31 in response to a signal from an operation switch (not shown).
Output control. 33 is a work.
【０００７】以下動作について説明する。図示しない操
作スイッチを押すと、電磁弁２０，２１が動作し、シー
ルドノズル５とノズル１２との間には供給穴１６を介し
てシールドガスが、ノズル１２と電極４との間には供給
穴１３を介してプラズマガスが供給される。同時に高周
波電源装置３１が動作し、電極４とワーク３３との間に
放電を発生させ、電極４とワーク３３とが電気的に絶縁
破壊されると、直流電源３０から供給される電力により
アークが維持される。次に実験例を説明する。なお、設
定条件は以下の通りである。
（１）電極：直径は２．４ｍｍ，材質はタングステン
（２）ノズル：内径は４ｍｍ，材質はセラミック
（３）プラズマガス：Ａｒガス＋１０％Ｈ2ガス，８ｌ
／分
（４）シールドガス：Ａｒガス，８ｌ／分
（５）電極の位置：電極先端とノズルの先端とは同一面
（６）電極先端とワークとの距離：５ｍｍ
（７）溶接電流：７５Ａ
（８）溶接速度：１，４００ｍｍ／分
（９）ワーク：板厚が１．６ｍｍの亜鉛めっき鋼板，目
付量は４５ｇ／ｍ2
上記の条件により溶接をした結果、溶け込み深さは０．
８ｍｍで、外観が均一でしかも欠陥の発生はなかった。
そして、上記条件のうち下記の条件だけを変えた場合
も、上記同様に良好な溶接結果が得られることを確認し
た。
（ａ）プラズマガスを５〜１０ｌ／分まで１ｌおきに変
えた場合。
（ｂ）シールドガスを５〜１０ｌ／分まで１ｌおきに変
えた場合。
（ｃ）電極先端をノズルの先端に対し０．５〜−１ｍｍ
突き出す場合。
（ｄ）電極先端とワークとの距離を１〜６ｍｍまで１ｍ
ｍおきに変えた場合。
（ｅ）溶接速度を５００〜１，６００ｍｍ／分まで１０
０ｍｍおきに変えた場合。
（ｆ）亜鉛の目付量が６０ｇ／ｍ2，９０ｇ／ｍ2の場
合。
なお、他の施工条件に関して確認した事項を以下に示
す。電極先端はノズルの先端に対し−１ｍｍ突き出
す、すなわち、電極先端をノズルの先端から１ｍｍ引き
込む方が良好な結果が得られる。電極直径が２．４ｍ
ｍ、ノズル内径が４ｍｍで、プラズマガスがＡｒガス＋
１０％Ｈ2ガスの場合、
（イ）プラズマガスを５ｌ／分未満にすると良い結果が
得られない。
（ロ）プラズマガスを１０ｌ／分を越えて供給するとア
ークが不安定となり、良い結果が得られない。
電極直径を２．４ｍｍ、プラズマガスを１０ｌ／分の
場合、
（イ）ノズル内径を５ｍｍにすると効果が少ない。
（ロ）ノズル内径を３ｍｍにするとアークが不安定とな
り、良い結果が得られない。
すなわち、上記，からプラズマガスの流速を１０〜
２０ｍ／秒とするのが適切である。なお、溶接線の確認
を容易にするため、シールド性能を阻害しない範囲でシ
ールドノズル５の先端をノズル１２の先端に対して引き
込めても、すなわち、シールドノズル５の先端とワーク
３３との間隔を広げても良い。 The operation will be described below. When an operation switch (not shown) is pressed, the solenoid valves 20 and 21 are operated, the shield gas is supplied between the shield nozzle 5 and the nozzle 12 through the supply hole 16, and the supply gas is supplied between the nozzle 12 and the electrode 4. Plasma gas is supplied via 13. At the same time, the high frequency power supply 31 operates to generate a discharge between the electrode 4 and the work 33, and when the electrode 4 and the work 33 are electrically broken down, an arc is generated by the power supplied from the DC power supply 30. Maintained. Next, an experimental example will be described. The setting conditions are as follows. (1) Electrode: Diameter is 2.4 mm, material is tungsten (2) Nozzle: Inner diameter is 4 mm, material is ceramic (3) Plasma gas: Ar gas + 10% H2 gas, 8 l
/ Min (4) Shield gas: Ar gas, 8 l / min (5) Electrode position: The tip of the electrode and the tip of the nozzle are on the same plane (6) Distance between electrode tip and work: 5 mm (7) Welding current: 75 A (8) Welding speed: 1,400 mm / min (9) Work piece: Zinc-plated steel plate having a plate thickness of 1.6 mm, and basis weight of 45 g / m2 As a result of welding under the above conditions, the penetration depth is 0.
At 8 mm, the appearance was uniform and no defects occurred.
Then, it was confirmed that even when only the following conditions among the above conditions were changed, good welding results were obtained in the same manner as above. (A) When the plasma gas is changed every 5 l up to 5 to 10 l / min. (B) When the shield gas is changed every 5 l up to 5 to 10 l / min. (C) The electrode tip is 0.5 to -1 mm from the tip of the nozzle
When sticking out. (D) The distance between the electrode tip and the work piece is 1 m up to 1 to 6 mm
When changing every m. (E) Welding speed is 10 up to 500-1,600 mm / min.
When changing every 0 mm. (F) When the basis weight of zinc is 60 g / m2 and 90 g / m2. The items confirmed regarding other construction conditions are shown below. A better result can be obtained by projecting the electrode tip by -1 mm with respect to the nozzle tip, that is, by retracting the electrode tip by 1 mm from the nozzle tip. Electrode diameter is 2.4m
m, nozzle inner diameter is 4 mm, plasma gas is Ar gas +
In the case of 10% H2 gas, (a) good results cannot be obtained if the plasma gas is less than 5 l / min. (B) If the plasma gas is supplied in excess of 10 l / min, the arc becomes unstable and good results cannot be obtained. When the electrode diameter is 2.4 mm and the plasma gas is 10 l / min, (a) the effect is small when the nozzle inner diameter is 5 mm. (B) If the inner diameter of the nozzle is 3 mm, the arc becomes unstable and good results cannot be obtained. That is, from the above, the flow velocity of the plasma gas is 10 to
20 m / sec is suitable. In order to facilitate the confirmation of the welding line, even if the tip of the shield nozzle 5 is retracted with respect to the tip of the nozzle 12 within a range that does not hinder the shield performance, that is, the distance between the tip of the shield nozzle 5 and the work 33. May be extended .
【０００８】[0008]
【発明の効果】以上説明したように、本発明によれば、
金属蒸気やヒュームが多量に発生する亜鉛めっき鋼板を
能率良く溶接することができるという効果がある。As described above, according to the present invention,
There is an effect that it is possible to efficiently weld a galvanized steel sheet in which a large amount of metal vapor and fumes are generated.
【図１】本発明に好適なプラズマトーチの先端部の一実
施例図。FIG. 1 is a diagram showing an embodiment of a tip portion of a plasma torch suitable for the present invention.
【図２】本発明の一実施例を示すプラズマ溶接装置の構
成図。FIG. 2 is a configuration diagram of a plasma welding apparatus showing an embodiment of the present invention.
【図３】従来のプラズマトーチの先端部拡大図。FIG. 3 is an enlarged view of a tip portion of a conventional plasma torch.
４ 電極 １１ プラズマトーチ １２ ノズル ２５，２６ Ａｒガスボンベ ２７ Ｈ2ガスボンベ ３０ 電源 ３３ ワーク4 electrode 11 plasma torch 12 nozzle 25, 26 Ar gas cylinder 27 H 2 gas cylinder 30 power supply 33 work
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 10/02 B23K 9/16 B23K 9/167 B23K 9/23 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) B23K 10/02 B23K 9/16 B23K 9/167 B23K 9/23
Claims (2)
2ガスを加えたガスをプラズマガスとし、Ａｒガスを前
記プラズマガスをシールドするシールドガスとしてプラ
ズマ溶接する亜鉛めっき鋼板の溶接方法において、プラズマガスの流路を規制するノズルを絶縁材で形成さ
れたノズルとし、 前記プラズマガスの流速を１０〜２０ｍ／秒とし、 電極の先端を内側ノズルの先端に対して、溶接開始時か
ら溶接終了時まで、０．５〜−１ｍｍワーク側に突き出
すように配置し、 電極の先端とワークとの距離を１〜６ｍｍとして溶接す
ることを特徴とする亜鉛めっき鋼板の溶接方法。1. Ar gas in which H has a volume of 10% of that of Ar gas
The gas obtained by adding 2 gas as a plasma gas, the welding method of the plasma soluble Sessu that galvanized steel sheet Ar gas as a shielding gas for shielding said plasma gas, forming a nozzle for regulating the flow path of the plasma gas with an insulating material It
And the flow rate of the plasma gas is 10 to 20 m / sec, and the tip of the electrode is attached to the tip of the inner nozzle at the start of welding.
From the end of welding to 0.5 to -1 mm so as to project to the work side, and welding is performed with the distance between the tip of the electrode and the work set to 1 to 6 mm.
ルは、内側形状がストレート、かつ内径が４〜５ｍｍで
あり、電極の直径を２．４ｍｍとすることを特徴とする
請求項１に記載の亜鉛めっき鋼板の溶接方法。2. A nozzle for regulating the flow path of the plasma gas.
The inner shape is straight and the inner diameter is 4-5 mm.
The welding method for a galvanized steel sheet according to claim 1, wherein the electrode has a diameter of 2.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05033994A JP3437630B2 (en) | 1994-03-22 | 1994-03-22 | Welding method for galvanized steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05033994A JP3437630B2 (en) | 1994-03-22 | 1994-03-22 | Welding method for galvanized steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07256463A JPH07256463A (en) | 1995-10-09 |
| JP3437630B2 true JP3437630B2 (en) | 2003-08-18 |
Family
ID=12856170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05033994A Expired - Lifetime JP3437630B2 (en) | 1994-03-22 | 1994-03-22 | Welding method for galvanized steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3437630B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2356512C (en) | 2000-09-07 | 2009-03-10 | Inocon Technologie Ges.M.B.H. | A method for closing and/or joining a connecting joint or joining seam between two pieces of galvanized sheet metal |
| FR2877597B1 (en) * | 2004-11-09 | 2008-04-25 | Safmatic Sa | DOUBLE FLOW TYPE ARC WELDING TORCH SUITABLE FOR TUBE WELDING |
| FR2941880B1 (en) * | 2009-02-11 | 2012-04-27 | Air Liquide | METHOD FOR ARC WELDING WITH DOUBLE GASEOUS FLOW |
| US20100276397A1 (en) * | 2009-05-01 | 2010-11-04 | Baker Hughes Incorporated | Electrically isolated gas cups for plasma transfer arc welding torches, and related methods |
| JP5773600B2 (en) * | 2010-09-14 | 2015-09-02 | 新日鐵住金株式会社 | Plasma welding method for aluminum alloy sheet |
| CN107052550B (en) * | 2017-04-26 | 2020-01-21 | 中国核工业第五建设有限公司 | Galvanized steel sheet welding method |
-
1994
- 1994-03-22 JP JP05033994A patent/JP3437630B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07256463A (en) | 1995-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5045667A (en) | Manual keyhole plasma arc welding system | |
| US4689463A (en) | Welding apparatus method for depositing wear surfacing material and a substrate having a weld bead thereon | |
| US3483354A (en) | Method for depositing metal with a tig arc | |
| GB1315145A (en) | Production of a cathode stabilised collimated plasma arc | |
| EP0194050B1 (en) | A welding apparatus and method for depositing wear surfacing material on a substrate | |
| ES2128781T3 (en) | APPARATUS AND METHOD FOR WELDING METALS THROUGH THE USE OF A LASER RAY. | |
| US4745256A (en) | Narrow substrate having weld bead of powdered metal | |
| US20050011868A1 (en) | Hybrid laser-arc welding method with gas flow rate adjustment | |
| US3239648A (en) | Apparatus for arc welding | |
| US2847555A (en) | High pressure arc process and apparatus | |
| WO2018145543A1 (en) | Dual heat source hybrid welding torch and welding method | |
| US2868950A (en) | Electric metal-arc process and apparatus | |
| JP3437630B2 (en) | Welding method for galvanized steel sheet | |
| US5367142A (en) | Apparatus for the themic cutting of materials | |
| US5466905A (en) | Low electric D.C., low time rate polarity reversing arc welding method | |
| US3179783A (en) | Method and apparatus for treating electrically-conductive surfaces to make them hardor corrosion resistant | |
| US5464958A (en) | Arc welding apparatus with variable polarity reversing device and control | |
| US5734144A (en) | Plasma arc welding method and apparatus in which a swirling flow is imparted to a plasma gas to stabilize a plasma arc | |
| JP3765616B2 (en) | Method for igniting a welding arc | |
| US3311735A (en) | Apparatus and method for generating heat | |
| Gu et al. | Effect of laser on droplet transfer and welding process stability in hybrid laser+ double arc welding | |
| JPS5573479A (en) | Tandem system high speed arc welding method | |
| JPS555125A (en) | Plasma arc build-up welding method by powder metals or other | |
| SE7503771L (en) | PLASMA-MIG WELDING KIT AND DEVICE. | |
| Bach et al. | Plasma cutting in atmosphere and under water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20030121 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20030527 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R360 | Written notification for declining of transfer of rights |
Free format text: JAPANESE INTERMEDIATE CODE: R360 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080606 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090606 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090606 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100606 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100606 Year of fee payment: 7 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100606 Year of fee payment: 7 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100606 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110606 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120606 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120606 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130606 Year of fee payment: 10 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |