JPH01274847A - Water-repellent treatment of tube - Google Patents
Water-repellent treatment of tubeInfo
- Publication number
- JPH01274847A JPH01274847A JP10568788A JP10568788A JPH01274847A JP H01274847 A JPH01274847 A JP H01274847A JP 10568788 A JP10568788 A JP 10568788A JP 10568788 A JP10568788 A JP 10568788A JP H01274847 A JPH01274847 A JP H01274847A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tip
- liquid
- water
- outside
- 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
- 239000005871 repellent Substances 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 17
- 229920002545 silicone oil Polymers 0.000 abstract description 5
- -1 felt Substances 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract description 2
- 239000002480 mineral oil Substances 0.000 abstract description 2
- 235000010446 mineral oil Nutrition 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 abstract description 2
- 239000008158 vegetable oil Substances 0.000 abstract description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- PNNCWTXUWKENPE-UHFFFAOYSA-N [N].NC(N)=O Chemical compound [N].NC(N)=O PNNCWTXUWKENPE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Devices For Use In Laboratory Experiments (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、管の先端等の表面を攬水性にするための方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for making a surface such as a tip of a pipe water-repellent.
特に化学分析において一定量の試料液を供給するための
定量ピペットのノズル（吐出管）の先端付近に抗水性表
面を形成するのに有用な方法に関する。In particular, the present invention relates to a method useful for forming a water-resistant surface near the tip of a nozzle (discharge tube) of a metering pipette for supplying a fixed amount of sample liquid in chemical analysis.
［従来の技術］
最近、乾式法による臨床化学検査が、分析作業の簡易性
、測定の迅速性等において優れているため）く用いられ
るようになってきた。この乾式法による臨床化学検査は
、検体である血液等の液体試料中のグルコース、尿素窒
素（ＢＵＮ）等の特定成分と反応する試薬を含有させた
化学分析スライドに液体試料を点着し、試薬と特定成分
の反応により生じた発色、変色等を比色分析することに
より特定成分を定量している。[Prior Art] Recently, dry method clinical chemistry tests have come into widespread use because they are superior in terms of ease of analysis, speed of measurement, etc. In clinical chemistry testing using this dry method, a liquid sample is spotted on a chemical analysis slide containing a reagent that reacts with specific components such as glucose and urea nitrogen (BUN) in a liquid sample such as blood. Specific components are quantified by colorimetric analysis of color development, discoloration, etc. caused by the reaction of specific components.
従来、化学分析スライドに検体（！１ｃｔ１液）を点着
するには、ピペットで検体を所定量吸入した後、ピペッ
トの先端に検体の丸い液滴を形成し、この液滴を化学分
析スライドの中央部にそっと触れるようにして点着して
いた。Conventionally, in order to spot a specimen (1 ct 1 liquid) on a chemical analysis slide, after inhaling a predetermined amount of the specimen with a pipette, a round droplet of the specimen is formed at the tip of the pipette, and this droplet is placed on the chemical analysis slide. I applied it by gently touching the center.
検体のこのような点着方法においては点着精度の個人差
が大きく、満足な検査精度を得ることが困難であった。In this method of spotting a specimen, there are large individual differences in spotting accuracy, making it difficult to obtain satisfactory testing accuracy.
３：の個人差の主な原因は、ビベ・ソ１〜の先端（ノズ
ルの）と化学分析スライドの点盾面との相対的な位置関
係を一定に保つことが困難なことと、液吸引後にノズル
の先端外側に付着している液を拭き取らないとしばしば
液滴が形成されないことにあった、
点着の個人差をなくすには、ピペットを架台に装着し２
手動でまたは自動的に液をピペットから吐出させるのが
、一つのよい方法である。しかしこの場合にはピペット
の先端と化学分析スライドの点着部との距離が一定であ
るから、ピペットのノズルの先端に液滴を形成させてか
ら、化学分析スライドに接触させて点着することができ
ない。The main causes of individual differences in 3: are that it is difficult to maintain a constant relative position between the tip of the vibrator (nozzle) and the dot shield surface of the chemical analysis slide; Droplets were often not formed unless the liquid adhering to the outside of the nozzle tip was wiped off after suction.To eliminate individual differences in spotting, it was necessary to attach the pipette to a stand.
One good method is to manually or automatically dispense the liquid from a pipette. However, in this case, since the distance between the tip of the pipette and the spotting part of the chemical analysis slide is constant, it is necessary to form a droplet at the tip of the pipette nozzle and then bring it into contact with the chemical analysis slide to deposit it. I can't.
化Ｔ分析スライドで検査される試料液には、全血、血漿
、血清、それらの希釈液、尿、唾液等種々あり、粘度等
が異なるので、化学分析スライドの液受容部（通常は展
開層）に吸収される速度が異なる。また、被検出成分に
よりそれぞれ異なる種類の分析スライドが用いられ、同
種の試料液でも化学分析スライドの種類によって液受容
部（通常は展開層）に吸収される速度が異なる。化字分
ｔＪｉスライドに吸収される速度に対し、ピペットから
の吐出速度が速づぎると、液滴の一部がノズルの先端の
周囲に付着し、てそのまま残留するため、点着液量の誤
差を生ずる。すなわち 付着を起こした点着では供給液
通が不足となり、その後の点着では前にイー１着した液
が合併するために、液通に正（ト）の誤差を生ずる。There are a variety of sample liquids to be tested with chemical analysis slides, such as whole blood, plasma, serum, their diluted solutions, urine, and saliva, which have different viscosities. ) are absorbed at different rates. Further, different types of analysis slides are used depending on the component to be detected, and even the same type of sample liquid has a different rate of absorption into the liquid receiving part (usually the developing layer) depending on the type of chemical analysis slide. If the ejecting speed from the pipette is faster than the speed at which the droplet is absorbed into the slide, some of the droplet will adhere to the area around the tip of the nozzle and remain there, resulting in an error in the amount of liquid deposited. will occur. That is, the supply liquid flow is insufficient in the spot where the adhesion has occurred, and in the subsequent spotting, the liquid that has landed previously is combined, resulting in a positive error in the liquid flow.
ノズル先端イ・１近の管の外側表面に液滴が付着しない
ようにするために、ノズルの外側のみを搗水性の材料で
構成することも考ズ、られｌ、：、しかしノズルを二重
構造にすることは、ノズルの製造工程を複雑にし、コス
トを大きくする。In order to prevent droplets from adhering to the outside surface of the tube near the nozzle tip, it is also possible to construct only the outside of the nozzle with a water-repellent material. This structure complicates the nozzle manufacturing process and increases cost.
また液吸引の都度ノズルの先端外側に付着している液を
拭き取ることは手間がかかることであり、充分注意しな
いと、つい忘れることがあり、液量の誤差を生ずる。Moreover, it is time-consuming to wipe off the liquid adhering to the outside of the tip of the nozzle every time liquid is sucked, and if you are not careful enough, you may forget to do so, resulting in an error in the liquid amount.
［解決しようとする技術的課題」
本発明は、分析において用いるピペット等のノズル（吐
出管）笠の開放された管の先端から一定量の液を、−回
または反復し°Ｃ排出する際に、管の先端付近の外側に
液の一部が付着することを防ぐために、管の先端付近の
外側表面に断水性表面を形成する方法を提供することで
ある。[Technical Problem to be Solved] The present invention solves the problem of discharging a certain amount of liquid from the tip of a nozzle (discharge tube) of a pipette used in analysis by -times or repeatedly at °C. An object of the present invention is to provide a method for forming a water-blocking surface on the outer surface of a tube near the tip thereof in order to prevent a portion of liquid from adhering to the outside of the tube near the tip.
本発明はまた、管の先端付近の外側に液の一部が付着す
ることなく、試Ｆｌ液を高い消電精度で一回または反復
して滴下できるように、定量ビベツ１−のノズルの先端
付近の外側表面に抗水性に面を形成する方法を提供する
ことを、技術的課題とする
［技術的課題の解決手段」
本発明の上記課題は、液保持性の外面を有する部材の、
液保持性の外面に抗水性を付与する性質をもつ液を保持
させ、この液保持性の外面に管の先端付近を接触させて
、管の先端付近の外面に抗水性表面を形成する方法によ
って解決された。The present invention also provides a method for dispensing the sample Fl solution at the tip of the nozzle of the metering bib 1-, so that the sample Fl solution can be dropped once or repeatedly with high dissipation accuracy without a part of the solution adhering to the outside near the tip of the tube. A technical problem is to provide a method for forming a water-resistant surface on a nearby outer surface [Means for solving the technical problem] The above-mentioned problem of the present invention is to provide a method for forming a water-resistant surface on a nearby outer surface.
By a method of retaining a liquid with properties that impart water resistance on the liquid-retaining outer surface, and bringing the vicinity of the tip of the tube into contact with this liquid-retaining outer surface, forming a water-resistant surface on the outer surface of the tube near the tip. Resolved.
本発明で抗水性処理される管は、断面が長円、多角形等
の断面を有してもよいが、円であることが望ましい。処
理される管（例えばビベツ１〜のノズル）の外径は長さ
方向に対し一定でもよく、また変化してもよいが、管は
少なくとも先端付近で直線の回転体であることが好まし
い。The pipe to be water-resistant treated in the present invention may have an oval or polygonal cross section, but preferably a circular cross section. The outer diameter of the tube to be treated (for example, the nozzles of the bivets 1 to 1) may be constant or variable in the length direction, but it is preferable that the tube is a linear rotating body at least near the tip.
部材の外面に液保持性の面を設けるには５部材の外側に
、布類、フェルト、紙、不織布、紐類、糸等を巻き付け
るか、貼り付ければよい。液保持部材は柔らかい方がよ
い、なぜなら管の先端ｆ」近を接したとき、少しへこむ
ので、管の外周の比較的広い面積に接するからである。In order to provide a liquid-retentive surface on the outer surface of the member, cloth, felt, paper, nonwoven fabric, string, thread, etc. may be wrapped or attached to the outer surface of the member. It is better that the liquid retaining member is soft, because when it comes into contact with the tip f'' of the tube, it will dent a little, so it will come into contact with a relatively wide area of the outer periphery of the tube.
部材の全体あるいは中央付近以外の部分を液保持性材［
ｌで構成してもよい。The entire part or the part other than the center area is coated with liquid-retentive material [
It may be composed of l.
管の先端付近に抗水性表面を形成するために用いる抗水
性液体としては、抗水処理剤として広く用いられている
シリコン油が、入手のし易さ、価格等の点で好適である
。しかし、植物油、動物油、鉱油、合成エステルｙ！ｉ
、高級アルコール等の中から管の先端付近の外周面に付
着し得るものを選んで用いてもよい。As the water-resistant liquid used to form a water-resistant surface near the tip of the tube, silicone oil, which is widely used as a water-resistant treatment agent, is suitable in terms of availability, price, etc. However, vegetable oil, animal oil, mineral oil, synthetic ester y! i
, higher alcohols, etc., which can adhere to the outer circumferential surface near the tip of the tube, may be selected and used.
本発明は臨床化学検査において、試料液、試薬等の針鼠
に用いられるビペツｌ−の注液ノズルの先端外面の抗水
化処理に有用である。INDUSTRIAL APPLICABILITY The present invention is useful for anti-hydration treatment of the outer surface of the tip of a liquid injection nozzle of a Bipetu l-, which is used for sample liquids, reagents, etc., in clinical chemistry tests.
臨床化学検査における化学分析スライドへの点着等に用
いられるピペットは、シリンダーとビス１〜ンを有する
ものが多い。ピペットは、ノズルが固定されているもの
でもよいし、着脱自在な、またさらに使い捨てのノズル
チップを用いるものでもよい、ノズルチップは例えば米
国特許 ４，０７２゜３３０、同４，２３７，０９５、
同４ 、３４７ 、８７５に記載されたものを用いるこ
とができる。市販のノズルチップは、加工精度の点から
ポリプロピレン製のものが多い。Many pipettes used for spotting on chemical analysis slides in clinical chemistry tests have a cylinder and a screw. The pipette may have a fixed nozzle, or may have a removable or disposable nozzle tip.
4, 347, 875 can be used. Many commercially available nozzle tips are made of polypropylene from the viewpoint of processing accuracy.
ピペットのノズルの先端の外径は、通常０゜３Ｉから１
．５− 程度のものである。好ましくは０．５ｍ＋１１
から１．２１である。The outer diameter of the tip of the pipette nozzle is usually 0°3I to 1
．． It is about 5-. Preferably 0.5m+11
It is 1.21.
本発明は管の外径により適用が制限されるものではない
が、液滴が管の外面に形成されるような場合に有用であ
り、５輪論をこえる外径をもつ管では実際的な効果は得
にくいであろう。Although the present invention is not limited in its application by the outer diameter of the tube, it is useful in cases where droplets are formed on the outer surface of the tube, and is not practical for tubes with an outer diameter exceeding the five-wheel theory. It will be difficult to obtain an effect.
着脱自在のノズルを有するピペット等に適用する場き、
ノズルの長さは特に制限はないが、本発明を実施するに
際してノズルを保持することができるだけの長さは必要
である。使い捨てのノズルチップ等の場合は、収容すべ
き所望の液量によってノズルの長さは自ずからきまる。When applied to pipettes etc. with removable nozzles,
Although the length of the nozzle is not particularly limited, it must be long enough to hold the nozzle when carrying out the present invention. In the case of a disposable nozzle tip, the length of the nozzle is naturally determined by the desired amount of liquid to be accommodated.
［発明の効果］
本発明を用いると、分析において用いるピペット等のノ
ズル（吐出管）等の開放された管の先端から一定量の液
を、−回または反復して排出する際に、管の先端付近の
外側に液の一部が付着することがないので、管から滴下
される液量の正（」−）または負の誤差が生じない、そ
の結果、例えば液中の成分に関する定量化学分析の精度
を向トすることができる。[Effect of the invention] When the present invention is used, when a certain amount of liquid is discharged from the tip of an open tube such as a nozzle (discharge tube) of a pipette used in analysis - times or repeatedly, Since no part of the liquid adheres to the outside near the tip, there are no positive (''-) or negative errors in the amount of liquid dropped from the tube, resulting in, for example, quantitative chemical analysis of the components in the liquid. The accuracy can be improved.
また本発明を用いると、液を吸入するためにビベツ１へ
のノズル部を比較的深く液中に浸けたときに、ノズル部
の比較的上方の外面に付着した液が徐々に流れ落ちてき
て、排出される液に加わること（滴下液量の正誤差とな
る）も防止できる。Furthermore, when the present invention is used, when the nozzle part for the bivet 1 is immersed relatively deeply into the liquid to suck the liquid, the liquid adhering to the relatively upper outer surface of the nozzle part gradually flows down. It is also possible to prevent the liquid from being added to the liquid being discharged (causing an error in the amount of liquid dropped).
本発明は、ピペットに限らず、定量分析に用いるビュウ
レット等にも有用である。さらに本発明は、化学分析に
用いる液体計量容器のみならず、比較的一定した大きさ
の液滴を常に形成することが重要な場合に有用である（
例えば点滴の際のように滴数により流量を管理する場合
）。The present invention is useful not only for pipettes but also for burettes and the like used for quantitative analysis. Furthermore, the present invention is useful not only in liquid measuring containers used in chemical analysis, but also in other cases where it is important to consistently form droplets of relatively constant size.
For example, when controlling the flow rate by the number of drops, such as during an intravenous drip).
［実施例］
第１図に示すような装置を製作した。第１図において、
１は基板、２は軸、３は円柱、４は円柱の外周を構成す
る液保持部材、５は処理される管を示す９円柱３と軸２
は基板１に固定されている。[Example] A device as shown in FIG. 1 was manufactured. In Figure 1,
1 is a substrate, 2 is a shaft, 3 is a cylinder, 4 is a liquid holding member that constitutes the outer periphery of the cylinder, 5 is a pipe to be processed 9 Cylindrical column 3 and shaft 2
is fixed to the substrate 1.
軸２は円柱３の軸に沿って設けられている。液保持部材
４はフェルトである。The axis 2 is provided along the axis of the cylinder 3. The liquid holding member 4 is felt.
液保持部材４に市販シリコン油を供給して浸み込ませ、
処理すべき管５、例えばマイクロとベットのノズルチッ
プの上端を手で持っζ、ノズルチップを下向きに保持し
、管５の先端が液保持部材４に接するように、円柱３の
周囲を時計方向く反時計方向でもよい）に１回りさせる
。管５は手に持ったまま回転されるので、その方向は変
わらず、従って管５の先端部が円柱３の周囲の液保持部
材４に接する面は、上記１回転の間に管５の全周に及ぶ
。Supply commercially available silicone oil to the liquid holding member 4 and let it soak in it,
Hold the upper end of the nozzle tip of the tube 5 to be treated, e.g. Micro and BET, with your hand, hold the nozzle tip downward, and rotate the circumference of the cylinder 3 in a clockwise direction so that the tip of the tube 5 is in contact with the liquid holding member 4. Rotate it once (counterclockwise is also acceptable). Since the tube 5 is rotated while being held in the hand, its direction does not change. Therefore, the surface where the tip of the tube 5 contacts the liquid retaining member 4 around the cylinder 3 is completely rotated during one rotation. It extends around the circumference.
すなわち管５の先端付近の全周にシリコン油が付着し、
抗水性の表面が形成される。このようにして、管５の先
端付近の外面に抗水性の表面を形成させた。In other words, silicone oil adheres to the entire circumference near the tip of the tube 5,
A water-resistant surface is formed. In this way, a water-resistant surface was formed on the outer surface near the tip of the tube 5.
第１図は本発明の実施例に用いた装置の使用状態を示す
立面図、第２図は本発明の方法で処理されたノズルチッ
プに形成される液滴の状態を示ず略図、第３図は外周に
抗水性表面を形成していないノズルチップ（従来技術）
に形成される液滴の状態を示す略図である。
出願人 富士写真フィル１１株式会社第１図
第２図
第３図
手続ン市正書（自発）
平成１年４月３日
富士写真フィルム株式会社 東京本社
電話（４０６）２５３７
４、補正の対象 明細書の「発明の詳細な説明１の欄
５、補正の内容
明細書の発明の詳細な説明の欄の記載を以下の通り補正
する。
明細書第６ページ１９行目の「用いてもよい。」の後に
「前記シリコン油は、分子量５０００以上のものを用い
るのが好ましい。」を挿入する。
以上FIG. 1 is an elevational view showing the state of use of the apparatus used in the embodiment of the present invention, FIG. Figure 3 shows a nozzle tip that does not have a water-resistant surface on its outer periphery (conventional technology)
2 is a schematic diagram showing the state of droplets formed in FIG. Applicant: Fuji Photo Film 11 Co., Ltd. Figure 1 Figure 2 Figure 3 Procedural official document (voluntary) April 3, 1999 Fuji Photo Film Co., Ltd. Tokyo Head Office Telephone: (406) 2537 4. Subject of amendment Details The statement in "Detailed Description of the Invention 1, Column 5, Contents of Amendment" in the Detailed Description of the Invention column of the Specification is amended as follows. ” is followed by “The silicone oil preferably has a molecular weight of 5000 or more.” that's all
Claims (1)
面に撥水性を付与する性質をもつ液を保持させ、前記液
保持性の外面に管の先端付近を接触させて、管の先端付
近の外面に撥水性表面を形成する方法。 ２）前記外周面が液保持性かつ柔軟である、特許請求の
範囲１）の方法。 ３）前記液保持性の外面に管の先端付近を接触させ、管
を回転させる特許請求の範囲１）の方法。 ４）前記液保持性の外面に管の先端付近を接触させ、管
を回転させつつ前記面に沿い移動させる、特許請求の範
囲１）の方法。[Scope of Claims] 1) A member having a liquid-retaining outer surface retains a liquid having a property of imparting water repellency to the liquid-retaining outer surface, and the liquid-retaining outer surface is provided near the tip of the tube. A method of contacting to form a water-repellent surface on the outer surface near the tip of the tube. 2) The method according to claim 1), wherein the outer peripheral surface is liquid retentive and flexible. 3) The method according to claim 1, wherein the tube is rotated by bringing the vicinity of the tip of the tube into contact with the liquid-retentive outer surface. 4) The method according to claim 1, wherein the vicinity of the tip of the tube is brought into contact with the liquid-retentive outer surface, and the tube is moved along the surface while rotating.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10568788A JPH01274847A (en) | 1988-04-28 | 1988-04-28 | Water-repellent treatment of tube |
| DE68920067T DE68920067T2 (en) | 1988-04-28 | 1989-04-26 | Method and device for imparting water-repellent properties to a tubular element. |
| EP89107584A EP0339622B1 (en) | 1988-04-28 | 1989-04-26 | Method and apparatus for water-repellent processing of tube |
| US07/343,314 US5051282A (en) | 1988-04-28 | 1989-04-26 | Method and apparatus for water-repellent processing of tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10568788A JPH01274847A (en) | 1988-04-28 | 1988-04-28 | Water-repellent treatment of tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01274847A true JPH01274847A (en) | 1989-11-02 |
Family
ID=14414316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10568788A Pending JPH01274847A (en) | 1988-04-28 | 1988-04-28 | Water-repellent treatment of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01274847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086645A (en) * | 2014-10-29 | 2016-05-23 | 国立大学法人広島大学 | Nano pipet and production method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074675A (en) * | 1973-11-02 | 1975-06-19 | ||
| JPS5372566A (en) * | 1976-12-10 | 1978-06-28 | Toshiba Corp | Manufacture of cathode-ray tube |
| JPS5523039A (en) * | 1978-08-04 | 1980-02-19 | Toshiba Corp | Water repellent activated carbon |
| JPS57185675A (en) * | 1981-05-08 | 1982-11-15 | Matsushita Electric Ind Co Ltd | Method of pouring constant amount of battery solution or muddy mixture |
-
1988
- 1988-04-28 JP JP10568788A patent/JPH01274847A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074675A (en) * | 1973-11-02 | 1975-06-19 | ||
| JPS5372566A (en) * | 1976-12-10 | 1978-06-28 | Toshiba Corp | Manufacture of cathode-ray tube |
| JPS5523039A (en) * | 1978-08-04 | 1980-02-19 | Toshiba Corp | Water repellent activated carbon |
| JPS57185675A (en) * | 1981-05-08 | 1982-11-15 | Matsushita Electric Ind Co Ltd | Method of pouring constant amount of battery solution or muddy mixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086645A (en) * | 2014-10-29 | 2016-05-23 | 国立大学法人広島大学 | Nano pipet and production method thereof |
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