CN101952636B - Coupler and device for supplying gas or liquid - Google Patents
Coupler and device for supplying gas or liquid Download PDFInfo
- Publication number
- CN101952636B CN101952636B CN2009801030586A CN200980103058A CN101952636B CN 101952636 B CN101952636 B CN 101952636B CN 2009801030586 A CN2009801030586 A CN 2009801030586A CN 200980103058 A CN200980103058 A CN 200980103058A CN 101952636 B CN101952636 B CN 101952636B
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- China
- Prior art keywords
- matrix
- joiner
- section
- convex
- open
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/005—Use of gas-solvents or gas-sorbents in vessels for hydrogen
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Fuel Cell (AREA)
Abstract
A coupler allows placement and retrieval of hydrogen by using a simple structure made up of a female type coupler section and a male type coupler section which has a valve opening and closing mechanism. A coupler and a hydrogen supply device have a container (50 or 60 or 90) incorporating a hydrogen occluding alloy, and also have a male type coupler (1) mounted to the front surface (60a or 50a) side of the container (60 or 50) or to the front surface (4b) side of a male type holding section (4) and having an opening and closing valve mechanism (6) which is adapted for the male type coupler and has a self-sealing structure operated by urging of a spring. The male type coupler section (1) is provided to the front surface side of the container.
Description
Technical field
The present invention relates to the supplier of a kind of joiner and hydrogen etc., especially the present invention relates in order to convex joiner section and matrix joiner section by having the valve switching mechanism, available simple formation is carried out the improvement of novelty of the turnover of hydrogen etc.
Background technique
In the past, as employed this kind joiner, for example utilize can with low pressure and densely the hydrogen occlusion alloy of occlude hydrogen (MH) utilize as the hydrogen take fuel cell as representative in the field of hydrogen source of equipment, identical with common pressurized container, adopt the joiner that in other field, is used.
For example, in the patent documentation 1, the joiner mechanism with socket and plug that a kind of general fluid is used, its become by inserting socket at plug can lock simply, also sealable structure.In addition, when socket and plug has sealing mechanism separately, releasing sealing mechanism from both begin combination, thus can guarantee to flow through the stream of fluid.
In addition, in patent documentation 2, patent documentation 3, the patent documentation 4 etc., exist as the employed valve of igniter, but this is when using igniter valve to be opened, and by the ignition function that has in addition the burning in the container is lighted a fire with solvent.
In addition, in patent documentation 5, the patent documentation 6 etc., import and the outlet valve of the fuel of igniter is being set, carrying out the turnover of fuel by this valve.
Patent documentation 1: Japanese Patent Laid-Open 2004-353833 communique
Patent documentation 2: Japanese Patent Laid-Open 2002-81649 communique
Patent documentation 3: Japanese patent laid-open 9-21529 communique
Patent documentation 4: Japanese patent laid-open 10-300081 communique
Patent documentation 5: Japanese Patent Laid-Open 2004-293952 communique
Patent documentation 6: No. 2613137 communique of Japan Patent
Summary of the invention
In the past, employed joiner consisted of in the above-described manner, therefore had following problem.
In the past, in the joiner of the patent documentation 1 that adopts in the hydrogen occlusion container, not only had sealing mechanism, also had locked mechanism, so complex structure, be difficult to realize miniaturization corresponding to the hydrogen occlusion container that more and more requires miniaturization.In addition, owing to convex section and matrix section are respectively different structures, therefore has the high problem of manufacture cost.Thus, the object of the present invention is to provide a kind of small-sized and hydrogen supply system that can carry out the turnover of hydrogen with hydrogen occlusion container of simplifying.
In addition, especially in hydrogen occlusion container, if hydrogen leaks when its hydrogen turnover, then might be because hydrogen concentration cause great disaster, therefore must be for not leaking the system of hydrogen.
In addition, especially, in built-in the hydrogen occlusion container of hydrogen occlusion alloy, because its alloy is from as Powdered, so powder might enter and becomes the main cause that makes system self obstruction system in.
Joiner of the present invention is following formation, namely comprises: container, built-in hydrogen occlusion alloy; And convex joiner section, be installed in the surface side of described container, have and utilize spring energized self-sealed type convex open and close valve mechanism; And described convex joiner section is arranged on the surface side of described container; Be following formation in addition, namely in the loading and unloading of described convex joiner section matrix joiner section be set freely, this matrix joiner section comprises the matrix open and close valve mechanism with the spring energized self-sealing configuration of utilizing of or similar structure identical with convex; Be following formation in addition, namely the end in described convex joiner section is arranging the filter with hole finer than described hydrogen occlusion alloy; Be following formation in addition, namely at described matrix joiner section is arranging when loading and unloading with the convex joiner and vessel side seals O type ring; Be following formation in addition, that is, described matrix joiner section be arranged on the surface side of joint; Be following formation in addition, even recessed integrated with the matrix holding part in cylindrical shell and the described joint in the described matrix joiner section; In addition for following formation: section carries out the turnover of gas or liquid by the described matrix joiner of technological scheme 1 described convex joiner section and technological scheme 2; Be following formation in addition, namely described filter is to arrange by riveting.
The effect of invention
The supplier of joiner of the present invention and hydrogen etc. consists of in the above-described manner, therefore can obtain following effect.
That is, comprising: container, built-in hydrogen occlusion alloy; And convex joiner section, be installed in the surface side of described container, have and utilize spring energized self-sealed type convex open and close valve mechanism; And described convex joiner section is arranged on the surface side of described container via described convex holding part, therefore to touch the joiner of (one touch) formula different from the past list, structure becomes simply, can have the turnover function of hydrogen corresponding with the miniaturization of container etc.
In addition, loading and unloading are arranging matrix joiner section freely in described convex joiner section, this matrix joiner section comprises the self-sealed type matrix open and close valve mechanism that utilizing of or similar structure identical with convex is spring energized, therefore can be simply and the supply system of qurer formation hydrogen etc.
In addition, at an end of described convex joiner section the filter with hole finer than described hydrogen occlusion alloy is being set, therefore can preventing that the powder of hydrogen occlusion alloy from flowing in hydrogen supply system.
At O type ring and the joint that described matrix joiner section is arranging when loading and unloading with the convex joiner and vessel side seals, both can prevent thus the Leakage Gas of hydrogen etc., can consist of simply again the supply system of hydrogen etc.
In addition, by the described matrix joiner of technological scheme 1 described convex joiner section and technological scheme 2 section, can obtain to carry out low price and the high performance system of the turnover of hydrogen etc.
Description of drawings
Fig. 1 is the sectional view of the supplier of expression joiner of the present invention and hydrogen etc.
Fig. 2 is the sectional view of the bonding state of presentation graphs 3.
Fig. 3 is that other of each joiner section of presentation graphs 8 uses the amplification sectional view of structure.
Fig. 4 is the sectional view of hydrogen occlusion container of the square of expression convex joiner section that Fig. 1 is installed.
Fig. 5 is the amplification decomposition section of the supplier of expression gas of the present invention or liquid.
Fig. 6 is the sectional view of the bonding state of presentation graphs 5.
Fig. 7 is filter is installed in other installation example from expression to convex joiner section.
Fig. 8 is the sectional view of non-binding state of the form of expression joiner of the present invention section.
[explanation of symbol]
Embodiment
The object of the present invention is to provide a kind of convex joiner section and matrix joiner section by having the valve switching mechanism, available simple formation is carried out the supplier of the joiner of turnover of hydrogen etc. and hydrogen etc.
Embodiment
Below, describe with the preferred example of graphic supplier to joiner of the present invention and gas or liquid.
The sectional view of the formation of Fig. 1 joiner 3 that to be expression be connected convex joiner of the present invention section 1 and matrix joiner section 2 with the convex-concave inserted type, described convex joiner section 1 is by the convex of start consists of with open and close valve mechanism 6 by energizing of compression type springs 5.
Described convex is come in and gone out with open and close valve mechanism 6 and is arranged on freely periphery and has the protruding in the cylindrical shell 8 of O type ring 7, and by periphery have a seal ring 9 protruding with valve 12 be arranged on the end 11a of described protruding flap 11 with cylindrical shell 8 and describedly protrudingly consisted of with the described spring 5 between the valve 12.
Therefore, constitute: by described protruding with the valve 12 described springs 5 of opposing or utilize elastic force to move at axle direction, and described seal ring 9 is moved, hole 13 is opened and closed, carry out thus convex with the protruding switching with valve 12 of open and close valve mechanism 6.In addition, arranging at the outer surface of the end of described flap 11 11a and to have the filter capability thinner than the particle of hydrogen occlusion alloy, namely having the filter 40 in fine hole (not shown).
The spring energized self-sealed type matrix that utilizes of described matrix joiner section 2 comprises with open and close valve mechanism 30: recessed with valve 24, coming in and going out is arranged in the recessed usefulness cylindrical shell 21 that periphery has O type ring 20 and 27 freely, and periphery has seal ring 22; And described spring 26, be arranged on described recessed end 25a and described recessed the using between the valve 24 of using the flap 25 of cylindrical shell 21.
Therefore, constitute: by described recessed with the valve 24 described springs 26 of opposing or utilize elastic force to move at axle direction, and described seal ring 22 is moved, hole 28 is opened and closed, carry out thus matrix with the switching of open and close valve mechanism 30.
In addition, as shown in Figure 8, it is surperficial 80a that described matrix joiner section 2 is arranged on the shaft core position of matrix holding part 41 that global shape in the joint 80 is the cartridge type shape of matrix by screw section 80b for example with wresting-in type, and convex joiner section 1 is arranged on the surperficial 4b of the convex holding part 4 of the convex of installing to the front end of hydrogen storage container 90, and by screw section 4a, 41a and positively fixing and loading and unloading freely.In addition, the joiner 3 of described Fig. 1 is bonding state, so each joiner section 1,2 valve system 6,30 are respectively open mode.
In addition, the sectional view of other form that constitutes presentation graphs 8 of Fig. 3, Fig. 2 is the sectional view of the bonding state of presentation graphs 3, be made as following formation, namely have joint 80, this joint 80 comprises: make the integrated and matrix holding part 41b that obtains of recessed in the described matrix joiner section 2 matrix holding part 41 with in cylindrical shell 21 and the described joint 80; Be arranged on to the O type ring 20 of the periphery of the outstanding protuberance of the surperficial 80a of described matrix holding part 41b; And described matrix open and close valve mechanism 30; And do not need screw section 80b and seal ring 27.Therefore, the part number reduces, and owing to there is not screw section 80b, thereby there is not near the possibility from leaking the surperficial 80a of matrix holding part 41 such as hydrogen in cost thus.
In addition, Fig. 4 represents described convex joiner section 1 is installed in the in store situation of the surperficial 50a of the hydrogen storage container 50 of the square of hydrogen, and is the formation of using in order to the hydrogen in this hydrogen storage container 50 are supplied with to the outside.
In addition, Fig. 5 and Fig. 6 for example are illustrated in the container 60(cylindraceous different with the hydrogen storage container 50 of the square of Fig. 4, with the equal capacity such as well-known watering can) surperficial 60a described convex joiner section 1 is installed, the state of matrix joiner sections 2 is installed at applying nozzle 70.
Therefore, when under described state, the convex joiner section 1 of the container 60 in Fig. 5 and Fig. 6 is connected the matrix joiner section 2 of applying nozzle 70, then as shown in Figure 1, matrix moves with the recessed seal ring 22 with valve 24 of open and close valve mechanism 30 and hole 28 becomes open mode, convex moves with the protruding seal ring 9 with valve 12 of open and close valve mechanism 6 and hole 13 becomes open mode, hydrogen in the container 60 uses open and close valve mechanism 6 via conducting orifice 14 and 29 via filter 40 from convex, and to outside supplies with hydrogen from the aperture of the end 25a of flap 25 by the pipe 71 of applying nozzle 70 with open and close valve mechanism 30 via matrix.In addition, with described opposite, also can be at container 60 interior filling hydrogen.In addition, Fig. 5 represents that container 60 and applying nozzle 70 are separated state, and Fig. 6 represents bonding state.
Therefore, as shown in Figure 6, be incorporated at applying nozzle 70 under the state of container 60, can carry out the turnover of hydrogen with respect to container 60.
In addition, the end 11a that Fig. 7 is illustrated in described convex joiner section 1 directly is installed with the state of filter 40, and the expression convex is with 6 medi-springs, 5 elongations of open and close valve mechanism and stop up protrudingly in hole 13, and protruding usefulness valve 12 is closed condition.
In addition, the filter 40 of described Fig. 1 is installed in flap 11 by riveted joint.Such as Fig. 4 or filter 40 shown in Figure 7, by bonding install the time, there is binder infiltration device and so that the misgivings of the transit dose of filter decay, and also can't manages this amount, but need not bondingly in this example, guarantee easily the transit dose of hydrogen.
In addition, Fig. 8 or convex shown in Figure 2 are protected and are waitd upon section 4 and mutually is combined by screw section 4a, 41a with matrix holding part 41 or 41b, so can be easily and the combination of integrated ground.
In addition, the following part in convex joiner section 1 and the matrix joiner section 2 uses the part of identical or similar structure, but therefore qurer manufacturing.
Same structure
5 and 26: spring
7 with 27:O type ring
9 and 22: seal ring
Similar structure
8 and 21: cylindrical shell
11 and 25: flap (if except technological scheme 3, also can be same structure)
12 and 24: valve
Claims (6)
1. a joiner is characterized in that, comprising: container (90) is built-in with hydrogen bearing alloy or gas or liquid; Convex joiner section (1) has the surface side that is installed in described container (90), and the self-seal type convex that utilizes spring-loaded is with open and close valve mechanism (6); Also comprise
In described convex joiner section (1), loading and unloading freely are provided with the matrix joiner section (2) that the self-seal type matrix with the spring-loaded utilized is used open and close valve mechanism (30);
Wherein, this connecting appliance is standby: be arranged on upper its periphery of described container (90) have screw section (4a) and in be provided with the convex holding part (4) of described convex joiner section (1); Described matrix joiner section (2) is arranged on the joint (80) of its surface (80a) side; And interior the first matrix holding part (41) that has screw section (41a) week of cartridge type shape that is arranged on described joint (80) surface (80a) side formation matrix; By described each screw section (4a, screw thread combination 41a) is with described convex joiner section (1) and matrix joiner section (2) combination, wherein, be provided with convex with cylindrical shell (8) at described convex with the periphery of open and close valve mechanism (6), be provided with matrix with cylindrical shell (21) at described matrix with the periphery of open and close valve mechanism (30), and, position in the axle center that protrudes from described the first matrix holding part (41) is provided with described matrix and with the periphery of cylindrical shell (21) O type ring (20) is set with the described matrix of open and close valve mechanism (30) in interior;
Under the screw thread bonding state of described convex holding part (4) and the first matrix holding part (41), described O type ring (20) is connected with the inner peripheral surface (4A) of described convex holding part (4).
2. joiner according to claim 1, it is characterized in that: described matrix is connected with the endoporus (80A) of described joint (80) with the periphery (30a) of open and close valve mechanism (30) with the integrated formation second matrix holding part (41b) of the first matrix holding part (41) of cylindrical shell (21) and described joint (80), described matrix.
3. according to claim l or 2 described joiners, it is characterized in that: in described container (90), be built-in with in the situation of hydrogen bearing alloy, be provided with the filter (40) with hole finer than described hydrogen bearing alloy at an end of described convex joiner section (1).
4. joiner according to claim 3 is characterized in that: described filter (40) arranges by riveting.
5. joiner according to claim 1 and 2 is characterized in that: in described convex joiner section (1) and described matrix joiner section (2), have the self-seal type open and close valve mechanism that utilizes spring-loaded of same structure.
6. the supplier of gas or liquid, it is characterized in that: form following structure, that is, comprise joiner as claimed in claim 1, described supplier carries out the turnover of gas or liquid by described convex joiner section (1) and matrix joiner section (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-019239 | 2008-01-30 | ||
| JP2008019239A JP4465392B2 (en) | 2008-01-30 | 2008-01-30 | Coupler and gas or liquid supply device |
| PCT/JP2009/050827 WO2009096279A1 (en) | 2008-01-30 | 2009-01-21 | Coupler and device for supplying gas or liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101952636A CN101952636A (en) | 2011-01-19 |
| CN101952636B true CN101952636B (en) | 2013-05-29 |
Family
ID=40912631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801030586A Active CN101952636B (en) | 2008-01-30 | 2009-01-21 | Coupler and device for supplying gas or liquid |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4465392B2 (en) |
| CN (1) | CN101952636B (en) |
| TW (1) | TW200940417A (en) |
| WO (1) | WO2009096279A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5104536B2 (en) | 2008-05-16 | 2012-12-19 | マックス株式会社 | Fuel filling container and gas combustion type driving tool |
| JP2013234717A (en) * | 2012-05-09 | 2013-11-21 | Toyota Motor Corp | Gas filling device and gas filling method |
| JP5578206B2 (en) * | 2012-08-03 | 2014-08-27 | マックス株式会社 | Fuel filling container and gas combustion type driving tool |
| CN103697322B (en) * | 2013-12-27 | 2016-04-13 | 吉林省众鑫汽车装备有限公司 | A kind of storage ammonia tank |
| CN107076341B (en) * | 2014-11-12 | 2020-05-08 | 霓达株式会社 | Connector with test connector |
| KR102336331B1 (en) * | 2020-07-31 | 2021-12-09 | (주)모토닉 | Receptacle for fuel cell electric vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979068Y (en) * | 2006-08-07 | 2007-11-21 | 天津海蓝德能源技术发展有限公司 | Double self-sealing adaptor for minisize hydrogen storage tank |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880689U (en) * | 1981-11-27 | 1983-05-31 | 株式会社新潟鐵工所 | Emergency disconnection device for fluid handling lines |
| JPH0681000U (en) * | 1993-04-27 | 1994-11-15 | 昭和アルミニウム株式会社 | Hydrogen cylinder |
| JP3940381B2 (en) * | 2003-05-30 | 2007-07-04 | 日東工器株式会社 | Sockets and plugs for pipe fittings |
| JP4590226B2 (en) * | 2004-07-30 | 2010-12-01 | 株式会社東海 | Connector structure |
-
2008
- 2008-01-30 JP JP2008019239A patent/JP4465392B2/en active Active
-
2009
- 2009-01-21 WO PCT/JP2009/050827 patent/WO2009096279A1/en active Application Filing
- 2009-01-21 CN CN2009801030586A patent/CN101952636B/en active Active
- 2009-01-23 TW TW098103052A patent/TW200940417A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979068Y (en) * | 2006-08-07 | 2007-11-21 | 天津海蓝德能源技术发展有限公司 | Double self-sealing adaptor for minisize hydrogen storage tank |
Non-Patent Citations (4)
| Title |
|---|
| JP实开平H6-81000U 1994.11.15 |
| JP昭58-80689U 1983.05.31 |
| JP特开2004-353833A 2004.12.16 |
| JP特开2006-046691A 2006.02.16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009180277A (en) | 2009-08-13 |
| WO2009096279A1 (en) | 2009-08-06 |
| CN101952636A (en) | 2011-01-19 |
| JP4465392B2 (en) | 2010-05-19 |
| TW200940417A (en) | 2009-10-01 |
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Effective date of registration: 20210922 Address after: Hokkaido, Japan Patentee after: Japan steel works M & E Co., Ltd Address before: Tokyo Patentee before: THE JAPAN STEEL WORKS, Ltd. |
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