WO2002069432A1 - Pile a combustible - Google Patents
Pile a combustible Download PDFInfo
- Publication number
- WO2002069432A1 WO2002069432A1 PCT/JP2002/001153 JP0201153W WO02069432A1 WO 2002069432 A1 WO2002069432 A1 WO 2002069432A1 JP 0201153 W JP0201153 W JP 0201153W WO 02069432 A1 WO02069432 A1 WO 02069432A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- gas
- fuel
- manifold
- cells
- Prior art date
Links
Classifications
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- 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
Definitions
- the present invention relates to a fuel cell, and more particularly, to a fuel cell capable of uniformly distributing and supplying reformed gas to a plurality of cells constituting a fuel cell.
- Fuel cells usually reform hydrocarbon-based raw fuel gas into hydrogen rich gas using a reformer, supply this reformed gas to the fuel cell fuel electrode, and take air taken in from outside into the air electrode.
- the hydrogen gas at the fuel electrode and the oxygen gas at the air electrode generate an electrochemical reaction through the electrolyte membrane made of a solid polymer or the like to generate electric power and water.
- a large number of cells D having a fuel electrode B on one surface and an air electrode C on the other surface are provided via a separator H.
- the laminated body E is formed by laminating, and a plurality of (four in the figure) tie rods G are inserted through both ends of the laminated body E, and tightened and integrated.
- the reformed gas is supplied to the fuel electrode B (similarly to the air electrode C) through a plate-shaped separator H having a plurality of grooves (gas passages).
- a gas supply manifold J is formed at one end in communication with each of the grooves, and a gas supply port J is provided at an end of the manifold I.
- a gas discharge manifold K is formed at the other end in communication with each groove, and a gas discharge port L is provided at the end of the manifold. Therefore, the reformed gas flows from the gas supply port J into the gas supply manifold I, flows from the gas supply manifold I into each groove, and flows into the gas discharge manifold K. From the gas discharge manifold K via the gas discharge port L
- the gas supply ports J are connected to form a tunnel-shaped internal manifold M, and one end of the internal manifold M is formed.
- the reformed gas is supplied from the section (inlet side).
- the flow rate of the reformed gas supplied to the internal manifold M gradually decreases, a larger amount of the reformed gas flows into the cell D closer to the inlet, but the more the reformed gas flows from the cell D farther from the inlet. Inflow tends to decrease. Therefore, the electromotive force in each cell D varies, and the performance of the fuel cell decreases.
- a fuel cell in which a gas diffusion space and a gas rectifying plate are provided in the gas inlet of the inlet-side manifold to supply reformed gas to each cell Japanese Unexamined Patent Publication No. Hei 8-293318
- a fuel cell in which the depth of the fuel gas passage groove is formed so as to gradually decrease from the inlet side to the outlet side, and a rectifying plate is provided in the fuel gas passage groove Japanese Patent Laid-Open No. No. 2,888,133
- the distribution of the oxidizer as well as the fuel has a large effect on the power sword (air electrode) reaction. It is a problem.
- the distribution of cooling water leads to non-uniform temperature distribution, which is also a problem.
- the fuel cell improved in this way has a drawback that the structure becomes complicated and the number of structural parts increases.
- the present invention provides a fuel cell capable of uniformly distributing and supplying reformed gas to each cell while minimizing the increase in the number of parts without complicating the structure. It is for this purpose. Disclosure of the invention
- the present invention provides a method in which a large number of cells having a fuel electrode provided on one surface of an electrolyte membrane and an air electrode provided on the other surface are stacked via a separator.
- a fuel cell comprising a stacked body and a supply or discharge manifold (hereinafter referred to as an internal manifold) for distributing a fuel, an oxidant, or a coolant to cells in the stacked body, the number of the stacked bodies is reduced.
- Both have a cylindrical or columnar penetrating member penetrating through one internal manifold, and an appropriate gap exists between the cylindrical or columnar penetrating member and the inner manifold inner wall.
- the gist is a battery.
- the gist of the present invention is a fuel cell, wherein the cylindrical or columnar penetrating material is at least one tie rod constituting a fastening member for fastening and integrating the laminate. It is.
- a porous body is wound around the cylindrical or columnar penetrating member.
- the gist of the present invention is a fuel cell characterized in that the gap is closed by the porous body.
- the fuel cell according to the present invention having the above-described configuration is a cylindrical or columnar penetrating member that functions as a tie rod for tightening and integrating the laminate. Since it is used as a rectifying member for the gas supplied to the internal manifold, the structure does not become complicated.
- a porous body is wound around the cylindrical or columnar penetrating material, and the uniformity of gas flow can be further uniformed by closing the gap with the porous body. it can. Further, in the fuel cell according to the present invention, the number of components increased by the above means is extremely small.
- FIG. 1 is an explanatory view schematically showing an embodiment of a fuel cell according to the present invention.
- FIG. 2 is a schematic explanatory view of FIG. 1 as viewed from the side.
- FIG. 3 is a schematic explanatory view of another embodiment of the fuel cell according to the present invention as viewed from the side.
- FIG. 4 is a cross-sectional view of a penetrating member in another embodiment of the fuel cell according to the present invention.
- FIG. 5 is an explanatory diagram showing a configuration example of a general fuel cell.
- FIG. 6 is an explanatory diagram showing an example of a separator in a general fuel cell.
- FIG. 7 is an explanatory diagram schematically showing a state in which a reformed gas is supplied to each cell in a conventional fuel cell.
- FIG. 1 schematically shows a fuel cell according to the present invention.
- a large number of cells 1 are stacked via a separator (not shown) to form a stacked body 2.
- a fuel cell 5 is formed by applying a fastening plate 3 to both ends of the laminate 2 and fastening and integrating with a plurality of tie rods including a cylindrical or columnar penetrating member 4. ing.
- the cell 1 is provided with a fuel electrode on one surface of the solid polymer electrolyte membrane and an air electrode on the other surface, and these electrodes have a separator gas passage surface via a separator.
- the (fuel chamber) and the air passage (air chamber) are airtightly arranged.
- tie openings (not shown) other than the penetrating member 4 usually tighten the four corners of the fuel cell 5, and the penetrating member 4 penetrates the inside of the internal manifold 6. However, it also serves as a rectifying member for the reformed gas supplied into the internal manifold 6.
- the penetrating member 4 can be located at the corner of the fuel cell 5 as shown in FIG. 3, in which case the number of tie rods does not need to be increased.
- the internal manifold 6 is provided so as to penetrate the inside of the fuel cell 5 along the thickness direction of the stacked body 2 to form a sealed space, and a gas supply port is provided at one end. 6a is provided, and the side faces the gas supply port to each of the cells 1, that is, the gas passage port 1a of the fuel electrode side separator (not shown). Therefore, the reformed gas (fuel) supplied from the gas supply port 6a into the internal manifold 6 is supplied to each cell 1 from the gas passage port 1a of the fuel electrode side separator. .
- a gas supply manifold (not shown) for the fuel electrode side separator may be used as a gas supply port to each cell 1. In that case, the reformed gas is supplied to each cell via the gas supply manifold.
- the reformed gas supplied to each cell 1 is electrolyzed by hydrogen gas in the reformed gas and oxygen gas (oxidizing agent) in the air supplied to the air electrode.
- An electrochemical reaction occurs through the porous membrane to generate electric power and water.
- the unreacted reformed gas in each cell 1 flows into the gas discharge manifold and is discharged from the gas discharge port.
- the discharged unreacted reformed gas is sent to a burner of the reformer and burned.
- the penetrating material 4 is provided with a gas supply port 6 to an internal manifold 6 as schematically shown in FIG.
- a and a gas passage opening 1a from the internal manifold 6 to each of the cells 1 is arranged so as to partition therefrom, and between the penetrating member 4 and the internal manifold 6 is provided. Appropriate gaps are formed on both sides along the length of the penetrating member 4.
- the fuel cell 5 according to the present invention configured as described above is rectified because the flow path is narrowed by the penetrating material 4, so that the internal Gas diffusion in the manifold 6 is promoted, and the distribution and supply of gas to each cell 1 are made uniform. That is, in this case, reforming is performed between the cell near the gas supply port 6a and the cell far from the gas supply port 6a. There is no difference in the gas supply amount, and the performance of the fuel cell 5 can be improved without variation in the electromotive force in each cell 1.
- the gas rectification effect of the penetrating member 4 can be performed by providing a gap on only one side of the penetrating member 4.
- FIG. 4 shows a cylindrical or columnar penetrating member according to another embodiment of the present invention, and is an example in which a porous body 7 is wound around the outer peripheral surface of the penetrating member 4.
- a porous body 7 for example, a net-like material, a small-pore-like material, a porous material, or the like can be used.
- Heat resistant materials such as resin Z polyester resin are preferred.
- the porous body 7 By using a penetrating material around which the porous body 7 is wound to close the gap with the internal manifold 6, the porous body 7 can be used. By further increasing the gas diffusion, the distribution of gas to each cell 1 can be made more uniform. Although reformed gas has been described as an example of a fuel, it is also effective for fuels such as hydrogen and methanol. Similar effects can be obtained for air (oxidizing agent) and cooling water (cooling agent). Industrial applicability
- the structure is It is possible to uniformly distribute and supply fuel, oxidizing agent, or coolant to each cell without complicating the process and suppressing an increase in the number of parts, and as a result, stable power generation can be achieved without variation in each cell. This has the effect of improving the performance of the fuel cell.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60230016T DE60230016D1 (de) | 2001-02-23 | 2002-02-12 | Brennstoffzelle |
US10/258,381 US7094491B2 (en) | 2001-02-23 | 2002-02-12 | Fuel cell |
EP02711468A EP1363342B1 (en) | 2001-02-23 | 2002-02-12 | Fuel cell |
CA2404842A CA2404842C (en) | 2001-02-23 | 2002-02-12 | Fuel battery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001048516A JP4424863B2 (ja) | 2001-02-23 | 2001-02-23 | 燃料電池 |
JP2001-048516 | 2001-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002069432A1 true WO2002069432A1 (fr) | 2002-09-06 |
Family
ID=18909770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/001153 WO2002069432A1 (fr) | 2001-02-23 | 2002-02-12 | Pile a combustible |
Country Status (7)
Country | Link |
---|---|
US (1) | US7094491B2 (ja) |
EP (1) | EP1363342B1 (ja) |
JP (1) | JP4424863B2 (ja) |
CN (1) | CN1236516C (ja) |
CA (1) | CA2404842C (ja) |
DE (1) | DE60230016D1 (ja) |
WO (1) | WO2002069432A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1515383A2 (de) * | 2003-09-15 | 2005-03-16 | P 21-Power for the 21st Century GmbH | Vorrichtung zum Beströmen wenigstens einer Brennstoffzelle mit einem Medium sowie Brennstoffzellensystem |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040096715A1 (en) * | 2002-11-14 | 2004-05-20 | 3M Innovative Properties Company | Liquid cooled fuel cell stack |
EP1469542A1 (en) * | 2003-04-09 | 2004-10-20 | Matsushita Electric Industrial Co., Ltd. | Polymer electrolyte fuel cell |
JP4659376B2 (ja) * | 2003-04-09 | 2011-03-30 | パナソニック株式会社 | 高分子電解質型燃料電池 |
US7875397B2 (en) * | 2003-12-15 | 2011-01-25 | Utc Power Corporation | Permeable inlet fuel gas distributor for fuel cells |
JP3878619B2 (ja) * | 2004-03-31 | 2007-02-07 | 株式会社東芝 | 液体燃料電池 |
US7531264B2 (en) * | 2004-06-07 | 2009-05-12 | Hyteon Inc. | Fuel cell stack with even distributing gas manifolds |
US7524575B2 (en) | 2004-06-07 | 2009-04-28 | Hyteon Inc. | Flow field plate for use in fuel cells |
US20060008695A1 (en) * | 2004-07-09 | 2006-01-12 | Dingrong Bai | Fuel cell with in-cell humidification |
KR100579308B1 (ko) | 2004-08-30 | 2006-05-11 | 현대자동차주식회사 | 연료전지의 유량분배 안정장치 |
US7314680B2 (en) * | 2004-09-24 | 2008-01-01 | Hyteon Inc | Integrated fuel cell power module |
US7479333B2 (en) * | 2004-12-13 | 2009-01-20 | Hyteon, Inc. | Fuel cell stack with multiple groups of cells and flow passes |
US20060188763A1 (en) * | 2005-02-22 | 2006-08-24 | Dingrong Bai | Fuel cell system comprising modular design features |
JP2006260871A (ja) * | 2005-03-16 | 2006-09-28 | Ishikawajima Harima Heavy Ind Co Ltd | 固体高分子型燃料電池 |
CN100568603C (zh) | 2005-10-27 | 2009-12-09 | 日产自动车株式会社 | 燃料电池堆的流体通路结构 |
US7611791B2 (en) * | 2005-11-16 | 2009-11-03 | Ford Motor Company | Spirally-wound fuel cell assembly |
US8282918B2 (en) * | 2007-07-30 | 2012-10-09 | University Of Iowa Research Foundation | Polynucleotides encoding RPA4/RPA32 hybrid polypeptides |
JP2009231073A (ja) * | 2008-03-24 | 2009-10-08 | Toyota Motor Corp | 燃料電池システム |
US8785073B2 (en) * | 2008-11-11 | 2014-07-22 | Ballard Power Systems Inc. | Inlet manifold with guiding structure for fuel cell |
US8197982B2 (en) | 2011-11-15 | 2012-06-12 | Delphi Technologies, Inc. | Fuel cell with internal flow control |
Citations (4)
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JPH08213044A (ja) * | 1995-02-03 | 1996-08-20 | Toyota Motor Corp | 燃料電池 |
EP0999605A2 (en) * | 1998-11-06 | 2000-05-10 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell stack |
JP2000357531A (ja) * | 1999-06-15 | 2000-12-26 | Fuji Electric Co Ltd | 固体高分子電解質型燃料電池 |
JP2001006715A (ja) * | 1999-06-21 | 2001-01-12 | Daihatsu Motor Co Ltd | 燃料電池スタック |
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US4430390A (en) * | 1982-09-23 | 1984-02-07 | Engelhard Corporation | Compact fuel cell stack |
EP0128023B1 (en) | 1983-06-02 | 1987-10-21 | Engelhard Corporation | Cooling assembly for fuel cells |
US5041344A (en) * | 1984-12-14 | 1991-08-20 | Fuji Electric Corporate Research And Development Ltd. | Fuel cell cooling device |
JPS6266580A (ja) | 1985-09-18 | 1987-03-26 | Toshiba Corp | 燃料電池のマニホ−ルド構造 |
JPH07105241B2 (ja) * | 1987-11-10 | 1995-11-13 | 富士電機株式会社 | 燃料電池のマニホールド |
JP3113340B2 (ja) | 1991-11-07 | 2000-11-27 | 三洋電機株式会社 | 内部マニホールド方式燃料電池 |
JP3509180B2 (ja) | 1994-04-15 | 2004-03-22 | トヨタ自動車株式会社 | 燃料電池 |
US5484666A (en) * | 1994-09-20 | 1996-01-16 | Ballard Power Systems Inc. | Electrochemical fuel cell stack with compression mechanism extending through interior manifold headers |
JP3355861B2 (ja) | 1995-04-24 | 2002-12-09 | 松下電器産業株式会社 | 燃料電池 |
JPH0935726A (ja) | 1995-07-18 | 1997-02-07 | Tanaka Kikinzoku Kogyo Kk | 燃料電池用ガスプレート、冷却プレート及び燃料電池 |
JPH1145728A (ja) | 1997-07-28 | 1999-02-16 | Yoyu Tansanengata Nenryo Denchi Hatsuden Syst Gijutsu Kenkyu Kumiai | 燃料電池 |
JP3632468B2 (ja) | 1998-04-22 | 2005-03-23 | トヨタ自動車株式会社 | 燃料電池用ガスセパレータおよび該燃料電池用ガスセパレータを用いた燃料電池 |
US6200696B1 (en) | 1999-02-16 | 2001-03-13 | Energy Research Corporation | Internal reforming fuel cell assembly with simplified fuel feed |
EP1346425A2 (en) * | 2000-10-30 | 2003-09-24 | ZTEK Corporation | A hybrid electrical power system employing fluid regulating elements for controlling various operational parameters of the system |
US7998635B2 (en) | 2000-12-28 | 2011-08-16 | Mitsubishi Materials Corporation | Fuel cell structure for gas supply |
-
2001
- 2001-02-23 JP JP2001048516A patent/JP4424863B2/ja not_active Expired - Fee Related
-
2002
- 2002-02-12 US US10/258,381 patent/US7094491B2/en not_active Expired - Fee Related
- 2002-02-12 CN CNB028003918A patent/CN1236516C/zh not_active Expired - Fee Related
- 2002-02-12 DE DE60230016T patent/DE60230016D1/de not_active Expired - Lifetime
- 2002-02-12 WO PCT/JP2002/001153 patent/WO2002069432A1/ja active Application Filing
- 2002-02-12 CA CA2404842A patent/CA2404842C/en not_active Expired - Fee Related
- 2002-02-12 EP EP02711468A patent/EP1363342B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08213044A (ja) * | 1995-02-03 | 1996-08-20 | Toyota Motor Corp | 燃料電池 |
EP0999605A2 (en) * | 1998-11-06 | 2000-05-10 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell stack |
JP2000357531A (ja) * | 1999-06-15 | 2000-12-26 | Fuji Electric Co Ltd | 固体高分子電解質型燃料電池 |
JP2001006715A (ja) * | 1999-06-21 | 2001-01-12 | Daihatsu Motor Co Ltd | 燃料電池スタック |
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Title |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1515383A2 (de) * | 2003-09-15 | 2005-03-16 | P 21-Power for the 21st Century GmbH | Vorrichtung zum Beströmen wenigstens einer Brennstoffzelle mit einem Medium sowie Brennstoffzellensystem |
EP1515383A3 (de) * | 2003-09-15 | 2007-11-14 | P 21-Power for the 21st Century GmbH | Vorrichtung zum Beströmen wenigstens einer Brennstoffzelle mit einem Medium sowie Brennstoffzellensystem |
Also Published As
Publication number | Publication date |
---|---|
US7094491B2 (en) | 2006-08-22 |
EP1363342A4 (en) | 2004-12-15 |
CN1457525A (zh) | 2003-11-19 |
EP1363342A1 (en) | 2003-11-19 |
EP1363342B1 (en) | 2008-11-26 |
JP4424863B2 (ja) | 2010-03-03 |
CN1236516C (zh) | 2006-01-11 |
CA2404842A1 (en) | 2002-09-30 |
DE60230016D1 (de) | 2009-01-08 |
US20030104265A1 (en) | 2003-06-05 |
JP2002252021A (ja) | 2002-09-06 |
CA2404842C (en) | 2010-04-27 |
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