WO2004070858A3 - Compliant, strain tolerant interconnects for solid oxide fuel cell stack - Google Patents

Compliant, strain tolerant interconnects for solid oxide fuel cell stack Download PDF

Info

Publication number
WO2004070858A3
WO2004070858A3 PCT/US2004/002865 US2004002865W WO2004070858A3 WO 2004070858 A3 WO2004070858 A3 WO 2004070858A3 US 2004002865 W US2004002865 W US 2004002865W WO 2004070858 A3 WO2004070858 A3 WO 2004070858A3
Authority
WO
WIPO (PCT)
Prior art keywords
compliant
fuel cell
solid oxide
oxide fuel
cell stack
Prior art date
Application number
PCT/US2004/002865
Other languages
French (fr)
Other versions
WO2004070858A2 (en
WO2004070858A9 (en
Inventor
Sunil G Warrier
Jean Yamanis
Wayde R Schmidt
Raymond C Benn
John G Smeggil
Venkata R Vendula
Original Assignee
Utc Fuel Cells Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Utc Fuel Cells Llc filed Critical Utc Fuel Cells Llc
Priority to EP04707406A priority Critical patent/EP1595304A4/en
Priority to JP2006503238A priority patent/JP2007524956A/en
Priority to CA002514488A priority patent/CA2514488A1/en
Publication of WO2004070858A2 publication Critical patent/WO2004070858A2/en
Publication of WO2004070858A3 publication Critical patent/WO2004070858A3/en
Publication of WO2004070858A9 publication Critical patent/WO2004070858A9/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • H01M8/0202Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023Porous and characterised by the material
    • H01M8/0232Metals or alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • H01M8/0202Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0247Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
    • H01M8/0254Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/12Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
    • H01M8/2425High-temperature cells with solid electrolytes
    • H01M8/2432Grouping of unit cells of planar configuration
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/12Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M2008/1293Fuel cells with solid oxide electrolytes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

An interconnect (30, 32) for a solid oxide fuel cell (12) includes a compliant superstructure having a first portion defining a separator plate contact zone and a second portion defining an electrode contact zone, wherein the superstructure is porous. In one embodiment, the superstructure is defined by a plurality of compliant substructures provided in a first direction and a plurality of compliant substructures provided in second direction to define a woven structure.
PCT/US2004/002865 2003-01-31 2004-02-02 Compliant, strain tolerant interconnects for solid oxide fuel cell stack WO2004070858A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04707406A EP1595304A4 (en) 2003-01-31 2004-02-02 Compliant, strain tolerant interconnects for solid oxide fuel cell stack
JP2006503238A JP2007524956A (en) 2003-01-31 2004-02-02 Flexible strain resistant interconnects for solid oxide fuel cell stacks
CA002514488A CA2514488A1 (en) 2003-01-31 2004-02-02 Compliant, strain tolerant interconnects for solid oxide fuel cell stack

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US44402503P 2003-01-31 2003-01-31
US60/444,025 2003-01-31
US45489903P 2003-03-14 2003-03-14
US60/454,899 2003-03-14
US10/758,843 US20040200187A1 (en) 2002-11-27 2004-01-16 Compliant, strain tolerant interconnects for solid oxide fuel cell stack
US10/758,843 2004-01-16

Publications (3)

Publication Number Publication Date
WO2004070858A2 WO2004070858A2 (en) 2004-08-19
WO2004070858A3 true WO2004070858A3 (en) 2004-10-07
WO2004070858A9 WO2004070858A9 (en) 2004-11-18

Family

ID=32854298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/002865 WO2004070858A2 (en) 2003-01-31 2004-02-02 Compliant, strain tolerant interconnects for solid oxide fuel cell stack

Country Status (6)

Country Link
US (1) US20040200187A1 (en)
EP (1) EP1595304A4 (en)
JP (1) JP2007524956A (en)
KR (1) KR20050096960A (en)
CA (1) CA2514488A1 (en)
WO (1) WO2004070858A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287673B2 (en) 2004-11-30 2012-10-16 The Regents Of The University Of California Joining of dissimilar materials

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8158057B2 (en) 2005-06-15 2012-04-17 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US7981561B2 (en) 2005-06-15 2011-07-19 Ati Properties, Inc. Interconnects for solid oxide fuel cells and ferritic stainless steels adapted for use with solid oxide fuel cells
US7977004B2 (en) * 2003-01-31 2011-07-12 Utc Fuel Cells, Llc. Compliant seals for solid oxide fuel cell stack
CN100420082C (en) 2003-09-29 2008-09-17 Utc燃料电池有限责任公司 Compliant stack for a planar solid oxide fuel cell
US20050136312A1 (en) * 2003-12-22 2005-06-23 General Electric Company Compliant fuel cell system
JP2005209470A (en) * 2004-01-22 2005-08-04 Equos Research Co Ltd Fuel cell
JP4218569B2 (en) * 2004-03-30 2009-02-04 株式会社エクォス・リサーチ Separator and fuel cell using the same
US7803493B2 (en) * 2004-09-29 2010-09-28 General Electric Company Fuel cell system with separating structure bonded to electrolyte
DE102004047761A1 (en) * 2004-09-30 2006-04-27 Siemens Ag High-temperature fuel cell system and method for the production of contacting elements for such a fuel cell system
CA2627863A1 (en) * 2004-11-30 2006-11-30 The Regents Of The University Of California Sealed joint structure for electrochemical device
JP4887639B2 (en) * 2005-03-11 2012-02-29 株式会社エクォス・リサーチ Separator unit and fuel cell stack
JP4992188B2 (en) * 2005-03-11 2012-08-08 株式会社エクォス・リサーチ Separator unit and fuel cell stack
WO2007038132A1 (en) * 2005-09-21 2007-04-05 Jones Eric T Fuel cell device
WO2008133607A2 (en) * 2006-04-03 2008-11-06 Bloom Energy Corporation Fuel cell stack components and materials
US7951509B2 (en) * 2006-04-03 2011-05-31 Bloom Energy Corporation Compliant cathode contact materials
US8343686B2 (en) 2006-07-28 2013-01-01 The Regents Of The University Of California Joined concentric tubes
US8124293B2 (en) * 2006-12-27 2012-02-28 Utc Power Corporation Asymmetric dovetail interconnect for solid oxide fuel cell
US20100129731A1 (en) * 2006-12-28 2010-05-27 Utc Power Corporation Multi-wire, long-life interconnects for fuel cell stacks
DE102007016905A1 (en) * 2007-04-02 2008-10-09 Staxera Gmbh Interconnector arrangement and method for producing a contact arrangement for a fuel cell stack
US20090142639A1 (en) * 2007-11-29 2009-06-04 Steven Joseph Gregorski Seal system for solid oxide fuel cell and method of making
US8486580B2 (en) 2008-04-18 2013-07-16 The Regents Of The University Of California Integrated seal for high-temperature electrochemical device
DE112008004117T5 (en) * 2008-11-21 2012-09-13 Utc Power Corp. Solid oxide solid state fuel cell having a nickel base alloy
US8835074B2 (en) 2009-01-22 2014-09-16 Ballard Power Systems Inc. Solid oxide fuel cell having metal support with a compliant porous nickel layer
TWI479730B (en) * 2009-03-20 2015-04-01 Bloom Energy Corp Crack free sofc electrolyte
US9843053B2 (en) 2010-09-09 2017-12-12 Audi Ag Fuel cell coating
TWI552417B (en) 2011-11-17 2016-10-01 博隆能源股份有限公司 Multi-layered coating providing corrosion resistance to zirconia based electrolytes
US8962219B2 (en) 2011-11-18 2015-02-24 Bloom Energy Corporation Fuel cell interconnects and methods of fabrication
US9452475B2 (en) 2012-03-01 2016-09-27 Bloom Energy Corporation Coatings for SOFC metallic interconnects
US9847520B1 (en) 2012-07-19 2017-12-19 Bloom Energy Corporation Thermal processing of interconnects
WO2014036058A1 (en) 2012-08-29 2014-03-06 Bloom Energy Corporation Interconnect for fuel cell stack
FR2996065B1 (en) 2012-09-26 2017-02-24 Commissariat Energie Atomique COMPONENT COMPRISING AN EHT ELECTROLYSER INTERCONNECTOR OR SOFC FUEL CELL AND METHODS OF MAKING SAME
US9478812B1 (en) 2012-10-17 2016-10-25 Bloom Energy Corporation Interconnect for fuel cell stack
US9673457B2 (en) 2012-11-06 2017-06-06 Bloom Energy Corporation Interconnect and end plate design for fuel cell stack
TWI621302B (en) 2013-05-16 2018-04-11 博隆能源股份有限公司 Corrosion resistant barrier layer for a solid oxide fuel cell stack and method of making thereof
EP3053211A4 (en) 2013-10-01 2017-07-05 Bloom Energy Corporation Pre-formed powder delivery to powder press machine
TWI632728B (en) 2013-11-27 2018-08-11 博隆能源股份有限公司 Fuel cell interconnect with reduced voltage degradation over time and associated method
US10079393B1 (en) 2014-01-09 2018-09-18 Bloom Energy Corporation Method of fabricating an interconnect for a fuel cell stack
US9993874B2 (en) 2014-02-25 2018-06-12 Bloom Energy Corporation Composition and processing of metallic interconnects for SOFC stacks
US9923211B2 (en) 2014-04-24 2018-03-20 Bloom Energy Corporation Fuel cell interconnect with reduced voltage degradation over time
CA2987226C (en) * 2015-05-25 2019-07-02 Nissan Motor Co., Ltd. Solid oxide fuel cell
US10763533B1 (en) 2017-03-30 2020-09-01 Bloom Energy Corporation Solid oxide fuel cell interconnect having a magnesium containing corrosion barrier layer and method of making thereof
DE102017210664A1 (en) * 2017-06-23 2018-12-27 Robert Bosch Gmbh fuel cell
CN110010379A (en) * 2019-05-10 2019-07-12 东莞市爱德光设计有限公司 Alminium electrolytic condenser sub-prime assembly method based on carrier application
US11322473B2 (en) 2019-09-12 2022-05-03 International Business Machines Corporation Interconnect and tuning thereof
US11561243B2 (en) 2019-09-12 2023-01-24 International Business Machines Corporation Compliant organic substrate assembly for rigid probes
DE102020211640A1 (en) * 2020-09-17 2022-03-17 Robert Bosch Gesellschaft mit beschränkter Haftung Fuel cell for a fuel cell device, fuel cell device and method for producing a fuel cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389467A (en) * 1979-12-27 1983-06-21 The United States Of America As Represented By The United States Department Of Energy Porous electrolyte retainer for molten carbonate fuel cell
US5064734A (en) * 1989-10-27 1991-11-12 Asea Brown Boveri Ltd. Current-transmitting components for stacked high-temperature fuel cells and method of producing them
DE19517443A1 (en) * 1995-05-12 1996-11-14 Mtu Friedrichshafen Gmbh Corrosion-resistant current collector with mfg. method
WO1999013522A1 (en) * 1997-09-05 1999-03-18 Ceramic Fuel Cells Limited Electrical conductivity in a fuel cell assembly
US6296962B1 (en) * 1999-02-23 2001-10-02 Alliedsignal Inc. Design for solid oxide fuel cell stacks
US6379831B1 (en) * 2000-08-02 2002-04-30 Siemens Westinghouse Power Corporation Expanded nickel screen electrical connection supports for solid oxide fuel cells

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404267A (en) * 1982-04-26 1983-09-13 General Electric Company Anode composite for molten carbonate fuel cell
US4629537A (en) * 1985-05-17 1986-12-16 Hsu Michael S Compact, light-weight, solid-oxide electrochemical converter
EP0378812A1 (en) * 1989-01-18 1990-07-25 Asea Brown Boveri Ag Arrangement of fuel cells based on a solid electrolyte operating at a high temperature, consisting of zirconium oxide, to obtain maximum possible power
EP0410159A1 (en) * 1989-07-24 1991-01-30 Asea Brown Boveri Ag Current collector for high temperature fuel cell
EP0432381A1 (en) * 1989-10-12 1991-06-19 Asea Brown Boveri Ag Arrangement of elements for the conduction of current between ceramic high temperature fuel cells
EP0446680A1 (en) * 1990-03-15 1991-09-18 Asea Brown Boveri Ag Current collector for conducting current between neighbouring piled high temperature fuel cells
US4997727A (en) * 1990-05-14 1991-03-05 Asea Brown Boveri Ag Stack of flat, plane high-temperature fuel cells assembled into a stack
US5069987A (en) * 1990-07-06 1991-12-03 Igr Enterprises, Inc. Solid oxide fuel cell assembly
US5273837A (en) * 1992-12-23 1993-12-28 Corning Incorporated Solid electrolyte fuel cells
EP0609697A1 (en) * 1993-02-01 1994-08-10 Osaka Gas Co., Ltd. Fuel cell assembly and method of producing the same
US5424144A (en) * 1993-10-21 1995-06-13 M-C Power Corporation One piece separator plate with insert ring step design
DE4410711C1 (en) * 1994-03-28 1995-09-07 Forschungszentrum Juelich Gmbh Metallic bipolar plate for HT fuel cells and method of manufacturing the same
US5496655A (en) * 1994-10-12 1996-03-05 Lockheed Idaho Technologies Company Catalytic bipolar interconnection plate for use in a fuel cell
US5549983A (en) * 1996-01-22 1996-08-27 Alliedsignal Inc. Coflow planar fuel cell stack construction for solid electrolytes
US5702837A (en) * 1996-02-05 1997-12-30 Alliedsignal Inc. Bonding materials for anode to anode bonding and anode to interconnect bonding in solid oxide fuel cells
AUPO724997A0 (en) * 1997-06-10 1997-07-03 Ceramic Fuel Cells Limited A fuel cell assembly
US6054231A (en) * 1998-07-24 2000-04-25 Gas Research Institute Solid oxide fuel cell interconnector
US6265095B1 (en) * 1999-03-01 2001-07-24 Sofco Interconnect for solid oxide fuel cells
JP2001068132A (en) * 1999-08-25 2001-03-16 Tokyo Gas Co Ltd Current collecting plate and solid electrolyte fuel cell using same
US6383677B1 (en) * 1999-10-07 2002-05-07 Allen Engineering Company, Inc. Fuel cell current collector
US6291089B1 (en) * 1999-10-26 2001-09-18 Alliedsignal Inc. Radial planar fuel cell stack construction for solid electrolytes
US6770395B2 (en) * 2000-10-23 2004-08-03 Materials And Systems Research, Inc. Internally manifolded, planar solid oxide fuel cell (SOFC) stack with an inexpensive interconnect
JP2003163016A (en) * 2001-09-13 2003-06-06 Ngk Insulators Ltd Electrochemical equipment and conductive connector therefor
US7122266B2 (en) * 2001-09-13 2006-10-17 Ngk Insulators, Ltd. Holding member for holding an electrochemical cell, a holding substrate for the same, an electrochemical system and a connecting member for electrochemical cells
US8048587B2 (en) * 2002-11-27 2011-11-01 Delphi Technologies, Inc. Compliant current collector for fuel cell anode and cathode

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389467A (en) * 1979-12-27 1983-06-21 The United States Of America As Represented By The United States Department Of Energy Porous electrolyte retainer for molten carbonate fuel cell
US5064734A (en) * 1989-10-27 1991-11-12 Asea Brown Boveri Ltd. Current-transmitting components for stacked high-temperature fuel cells and method of producing them
DE19517443A1 (en) * 1995-05-12 1996-11-14 Mtu Friedrichshafen Gmbh Corrosion-resistant current collector with mfg. method
WO1999013522A1 (en) * 1997-09-05 1999-03-18 Ceramic Fuel Cells Limited Electrical conductivity in a fuel cell assembly
US6296962B1 (en) * 1999-02-23 2001-10-02 Alliedsignal Inc. Design for solid oxide fuel cell stacks
US6379831B1 (en) * 2000-08-02 2002-04-30 Siemens Westinghouse Power Corporation Expanded nickel screen electrical connection supports for solid oxide fuel cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8287673B2 (en) 2004-11-30 2012-10-16 The Regents Of The University Of California Joining of dissimilar materials

Also Published As

Publication number Publication date
CA2514488A1 (en) 2004-08-19
US20040200187A1 (en) 2004-10-14
EP1595304A4 (en) 2012-02-15
WO2004070858A2 (en) 2004-08-19
EP1595304A2 (en) 2005-11-16
KR20050096960A (en) 2005-10-06
WO2004070858A9 (en) 2004-11-18
JP2007524956A (en) 2007-08-30

Similar Documents

Publication Publication Date Title
WO2004070858A3 (en) Compliant, strain tolerant interconnects for solid oxide fuel cell stack
WO2005001959A3 (en) Stack supported solid oxide fuel cell
CA2472138A1 (en) End structure of a fuel cell stack
WO2002069413A3 (en) Method for producing membrane electrode assembly
EP1239530A3 (en) Solid polymer electrolyte fuel cell assembly, fuel cell stack, and method of supplying reaction gas in the fuel cell assembly
EP1465272A3 (en) Sealing structure for a fuel cell
CA2522479A1 (en) Fuel cell stack
EP1217676A3 (en) Solid oxide fuel cell with a gas diffusion mat and solid oxide fuel cell stack with said mat and an interconnect
EP1241726A3 (en) Solid polymer electrolyte fuel cell assembly, fuel cell stack, and method of operating cell assembly
AU5738600A (en) Planar solid oxide fuel cell stack with metallic foil interconnect
CA2345566A1 (en) Polymeric membrane fuel cell comprising dual seal assembly
EP1117142A4 (en) Fuel cell and method of manufacture thereof
EP1596457A3 (en) Solid electrolyte fuel cell configuration
EP1482585A4 (en) Solid oxide type fuel cell and separator
WO2002045198A3 (en) Solid oxide fuel cell stack and method of manufacturing the same
WO2000002275A3 (en) Electrochemical fuel cell having an undulate membrane electrode assembly
WO2003049214A3 (en) Discontinuous cathode sheet halfcell web
WO2007044045A3 (en) High specific power solid oxide fuel cell stack
WO2005064724A3 (en) Fuel cell and fuel cell stack
WO1998033221A3 (en) Bipolar plates for electrochemical cell stacks
WO2008085488A8 (en) Titanate and metal interconnects for solid oxide fuel cells
WO2004068622A3 (en) Fuel cell
WO2004071150A3 (en) Sofc with floating current collectors
WO2008139682A1 (en) Negative electrode for lithium secondary cell, lithium secondary cell using the same, and method for manufacturing negative electrode for lithium secondary cell
WO2004045010A3 (en) Fuel cell stack

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
COP Corrected version of pamphlet

Free format text: PAGES 1/8-8/8, DRAWINGS, REPLACED BY NEW PAGES 1/8-8/8

WWE Wipo information: entry into national phase

Ref document number: 2514488

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2006503238

Country of ref document: JP

Ref document number: 1020057013981

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2004707406

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 20048087137

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 1020057013981

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2004707406

Country of ref document: EP

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)