JP4659061B2 - 触媒皮膜を有する基板 - Google Patents
触媒皮膜を有する基板 Download PDFInfo
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- JP4659061B2 JP4659061B2 JP2008112157A JP2008112157A JP4659061B2 JP 4659061 B2 JP4659061 B2 JP 4659061B2 JP 2008112157 A JP2008112157 A JP 2008112157A JP 2008112157 A JP2008112157 A JP 2008112157A JP 4659061 B2 JP4659061 B2 JP 4659061B2
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/349—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of flames, plasmas or lasers
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- C—CHEMISTRY; METALLURGY
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1005—Arrangement or shape of catalyst
- C01B2203/1035—Catalyst coated on equipment surfaces, e.g. reactor walls
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1047—Group VIII metal catalysts
- C01B2203/1064—Platinum group metal catalysts
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1082—Composition of support materials
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Description
本発明は、皮膜が基板の表面と直接接合するように、基板を被覆する方法を提供する。高気孔率、高い表面プロファイルおよび表面積、ならびに粒径が小さいことを含む、溶射皮膜の特性が、本発明の適用において有利に達成される。本発明の方法において、例えば、10マイクロメートルを超える大きい粒径を有する粉体などの触媒前駆体材料を基板上に溶射し、基板表面に接合する触媒皮膜を形成する。この皮膜は、溶射される材料の、小さい粒径すなわち約5マイクロメートル未満程度、より明確には約3マイクロメートル未満程度の粒径を有する分解生成物から形成される。この基板は、次に、触媒材料のさらなる皮膜で被覆できる。ひとつの有用な実施形態においては、被覆された基板は、マイクロコンポーネントの反応チャンバまたは熱交換器における交互の流体流れの間のセパレータとして使用され、皮膜はチャンバ内の基板上を流れる流体の化学反応を促進させる触媒として作用する。
本発明は、図面を考慮して考察する下記の好ましい実施形態の記述において、より全面的に記述される。
本発明は一般に、金属基板上に、直接触媒皮膜を形成させる方法に関する。図1は、本発明において使用する溶射プロセスを図示したものである。粉末材料1を、基板4の表面3に向けられたフレームまたはプラズマ2中に導入する。基板の表面上に多孔質性、または増大した表面積を備えた皮膜が得られ、その皮膜は次に、貴金属などのさらなる触媒材料で被覆できる。本発明において金属水酸化物、炭酸塩および硝酸塩材料を使用して、溶射プロセスにより、金属基板を被覆し、気孔率および表面積を増加させる。溶射の視線方向に、材料が分解し、熱分解により酸化され、酸化物を生成し、その酸化物が基板表面に付着する。溶射プロセスにおいて、典型的な反応、金属水酸化物の例ではMe(OH)x→MeOx+H2O;金属炭酸塩の例ではMe(CO3)x→MeOx+CO2;また、金属硝酸塩の例ではMe(NO3)x→MeOx+N2O、が起こる。本方法では、金属水酸化物、炭酸塩、または硝酸塩などの組成物の10マイクロメートルより大の大粒径の粒子を基板に直接溶射し、それにより、5マイクロメートルより小、もっと具体的には3マイクロメートルより小の、より小粒径の粒子の皮膜を基板上に形成することで基板表面を処理する。基板の表面積および多孔性が増加する。本方法によって作る金属酸化物表面を有する基板は、触媒材料として、具体的にはマイクロコンポーネント組立品において、有用である。
金属水酸化物について: Me(OH)x→MeOx+H2O
金属炭酸塩について: Me(CO3)x→MeOx+CO2
硝酸塩について: Me(NO3)x→MeOx+N2O
金属水酸化物触媒前駆体材料が触媒皮膜に熱分解するのは、式:2Al(OH)3→Al2O3+3H2Oにより表現できる。触媒前駆体材料は、溶射プロセスのフレームまたはプラズマにより加熱され、基板までの経路において金属酸化物に分解し、金属酸化物触媒皮膜を形成する。
約100マイクロメートルの厚さを有するステンレス鋼合金、Iconel(登録商標)625、の基板(5センチメートル×10センチメートルのシム)を、トリクロロエチレンで約30分間、エタノールでさらに約30分間洗浄することにより清浄にし、次いで超音波洗浄器内で脱イオン水中約60分間浸漬した。
清浄にしたシムの表面を、約220メッシュの粒径のアルミナ粒子を使用するグリットブラストにより強化して、数マイクロメートルの粗さを得た。
本発明を詳細に記述してきたが、当分野の技術者は、本開示を与えられれば、本明細書に記述する発明概念の精神から離れることなく本発明に改変を施すことができることを認識するであろう。むしろ、本発明の範囲を、添付する特許請求範囲により決定することを意図するものである。
Claims (6)
- マイクロコンポーネント熱交換器内又はマイクロコンポーネント反応チャンバ内で使用されるセパレータであって、該セパレータの少なくとも一面が、5マイクロメートル未満の小さなサイズを有する金属酸化物粒子であって、10マイクロメートル乃至200マイクロメートルの粒子サイズを有する金属水酸化物、金属炭酸塩、金属硝酸塩、遷移金属水酸化物、遷移金属炭酸塩、遷移金属硝酸塩、希土類金属水酸化物、希土類金属炭酸塩及び希土類金属硝酸塩の大きなサイズの粒子から成る群から選択される単一粉末材料の基板への溶射によって、該粉末の大きなサイズの粒子が熱分解して波形プレートの表面に機械的に接合した小さなサイズの粒子の皮膜になるように該表面に堆積させられた該表面に分布する金属酸化物粒子を含み、前記粉末が他の材料が混合されていない単一成分粒子組成物である、ことを特徴とするセパレータ。
- 前記セパレータが波型プレートの形状である請求項1に記載のセパレータ。
- 前記セパレータが熱交換器内の隣り合うマイクロチャンネルの層流流体流れを分離する請求項1又は2に記載のセパレータ。
- 前記皮膜がAl2O3の皮膜である請求項1〜3のいずれか一項に記載のセパレータ。
- 前記表面に接合した小さなサイズの粒子が、溶射の際の熱分解(2Al(OH)3→Al2O3+3H2O)の結果としての3マイクロメートルよりも小さい粒子サイズを特徴とするAl2O3の皮膜を有する請求項1〜4のいずれか一項に記載のセパレータ。
- 前記皮膜が水蒸気改質反応を促進させる請求項1〜5のいずれか一項に記載のセパレータ。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/742,697 US6491985B2 (en) | 2000-12-20 | 2000-12-20 | Method for enhancing the surface of a metal substrate |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002562793A Division JP4388277B2 (ja) | 2000-12-20 | 2001-12-17 | 基板に皮膜を形成する方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008248390A JP2008248390A (ja) | 2008-10-16 |
| JP4659061B2 true JP4659061B2 (ja) | 2011-03-30 |
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ID=24985859
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002562793A Expired - Fee Related JP4388277B2 (ja) | 2000-12-20 | 2001-12-17 | 基板に皮膜を形成する方法 |
| JP2008112157A Expired - Fee Related JP4659061B2 (ja) | 2000-12-20 | 2008-04-23 | 触媒皮膜を有する基板 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002562793A Expired - Fee Related JP4388277B2 (ja) | 2000-12-20 | 2001-12-17 | 基板に皮膜を形成する方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6491985B2 (ja) |
| EP (1) | EP1346077A2 (ja) |
| JP (2) | JP4388277B2 (ja) |
| CA (1) | CA2431394C (ja) |
| WO (1) | WO2002063061A2 (ja) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6491985B2 (en) * | 2000-12-20 | 2002-12-10 | Honda Giken Kogyo Kabushiki Kaisha | Method for enhancing the surface of a metal substrate |
| US7005404B2 (en) * | 2000-12-20 | 2006-02-28 | Honda Motor Co., Ltd. | Substrates with small particle size metal oxide and noble metal catalyst coatings and thermal spraying methods for producing the same |
| US20020168307A1 (en) * | 2001-03-09 | 2002-11-14 | James Seaba | Micro component hydrocarbon steam reformer system and cycle for producing hydrogen gas |
| US7326669B2 (en) * | 2001-09-20 | 2008-02-05 | Honda Motor Co., Ltd. | Substrate having catalyst compositions on surfaces of opposite sides |
| US20050186127A1 (en) * | 2002-10-18 | 2005-08-25 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Catalyst carrier body with passivation layer and method for producing the same |
| DE10251624A1 (de) * | 2002-10-18 | 2004-04-29 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Katalysator-Trägerkörper mit Passivierungsschicht sowie Verfahren zu dessen Herstellung |
| US20060184251A1 (en) * | 2005-01-07 | 2006-08-17 | Zongtao Zhang | Coated medical devices and methods of making and using |
| US20070077193A1 (en) * | 2005-10-03 | 2007-04-05 | Te-Chu Chan | Method of using plasma to disintegrate an iron-compounded material to form ferric oxide |
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| US20070264190A1 (en) * | 2006-05-09 | 2007-11-15 | Qinglin Zhang | Fixed-bed reactors and catalytic processes |
| US20080124373A1 (en) * | 2006-08-02 | 2008-05-29 | Inframat Corporation | Lumen - supporting devices and methods of making and using |
| US20080069854A1 (en) * | 2006-08-02 | 2008-03-20 | Inframat Corporation | Medical devices and methods of making and using |
| US8592767B2 (en) * | 2006-08-07 | 2013-11-26 | The Trustees Of The University Of Pennsylvania | Tunable ferroelectric supported catalysts and method and uses thereof |
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| US7763325B1 (en) * | 2007-09-28 | 2010-07-27 | The United States Of America As Represented By The National Aeronautics And Space Administration | Method and apparatus for thermal spraying of metal coatings using pulsejet resonant pulsed combustion |
| US8507401B1 (en) | 2007-10-15 | 2013-08-13 | SDCmaterials, Inc. | Method and system for forming plug and play metal catalysts |
| US8652992B2 (en) | 2009-12-15 | 2014-02-18 | SDCmaterials, Inc. | Pinning and affixing nano-active material |
| US9126191B2 (en) | 2009-12-15 | 2015-09-08 | SDCmaterials, Inc. | Advanced catalysts for automotive applications |
| JP5669759B2 (ja) * | 2010-02-05 | 2015-02-18 | 日鉄住金ハード株式会社 | 溶射材料および溶射皮膜の形成方法 |
| JP5894799B2 (ja) * | 2010-02-05 | 2016-03-30 | 日鉄住金ハード株式会社 | 溶射材料および溶射皮膜の形成方法 |
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| ES2654858B1 (es) * | 2014-10-03 | 2018-10-04 | Uab "Verdigo" | Método para preparar un soporte de metal - cerámica flexible que tiene una capa superficial nanocristalina |
| FI20146177A (fi) * | 2014-12-31 | 2016-07-01 | Teknologian Tutkimuskeskus Vtt Oy | Menetelmä katalyyttisen nanopinnoitteen muodostamiseksi |
| US10323747B2 (en) | 2017-03-28 | 2019-06-18 | Mahle International Gmbh | Piston ring and method for manufacturing a piston ring |
| US20190368607A1 (en) * | 2018-05-29 | 2019-12-05 | Mahle International Gmbh | Piston ring and method for manufacturing a piston ring |
| WO2020210353A1 (en) | 2019-04-11 | 2020-10-15 | Smith & Nephew, Inc. | Medical devices and methods for forming medical devices containing a build plate |
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| GB8607268D0 (en) * | 1986-03-24 | 1986-04-30 | Atomic Energy Authority Uk | Methanation & steam reforming catalyst |
| DE4004172C2 (de) * | 1989-02-14 | 1998-06-04 | Ngk Spark Plug Co | Sauerstoffsensor zur Luft-Brennstoffgemisch-Kontrolle mit einer Schutzschicht, die eine Sauerstoff einschließende Substanz umfaßt, und Verfahren zur Herstellung des Sensors |
| US5204302A (en) * | 1991-09-05 | 1993-04-20 | Technalum Research, Inc. | Catalyst composition and a method for its preparation |
| GB9304575D0 (en) * | 1993-03-05 | 1993-04-21 | Glaverbel | Coated glass and method of manufacturing same |
| US5512250A (en) * | 1994-03-02 | 1996-04-30 | Catalytica, Inc. | Catalyst structure employing integral heat exchange |
| US5413821A (en) * | 1994-07-12 | 1995-05-09 | Iowa State University Research Foundation, Inc. | Process for depositing Cr-bearing layer |
| US5811062A (en) * | 1994-07-29 | 1998-09-22 | Battelle Memorial Institute | Microcomponent chemical process sheet architecture |
| US6129973A (en) * | 1994-07-29 | 2000-10-10 | Battelle Memorial Institute | Microchannel laminated mass exchanger and method of making |
| US5721188A (en) * | 1995-01-17 | 1998-02-24 | Engelhard Corporation | Thermal spray method for adhering a catalytic material to a metallic substrate |
| RU2126717C1 (ru) * | 1995-03-06 | 1999-02-27 | Хинский Александр Павлович | Способ изготовления каталитического блока для нейтрализации газовых выбросов |
| JPH09315801A (ja) * | 1996-03-26 | 1997-12-09 | Toyota Motor Corp | 燃料改質方法と燃料改質装置ならびに該燃料改質装置を備えた燃料電池システム |
| DE19624923C1 (de) * | 1996-06-21 | 1998-03-12 | Siemens Ag | Verfahren zur Herstellung eines Katalysators sowie danach hergestellter Katalysator |
| JPH10177864A (ja) * | 1996-10-18 | 1998-06-30 | Toshiba Corp | 燃料電池 |
| LT4456B (lt) * | 1997-04-21 | 1999-02-25 | Uždaroji Akcinė Bendrovė "Katalita" | Kompozicinių dangų gavimo būdas |
| DE19860495A1 (de) * | 1998-12-28 | 2000-07-06 | Siemens Ag | Verfahren zur Herstellung eines Katalysatorkörpers sowie Katalysatorkörper |
| EP1034843A1 (de) * | 1999-03-10 | 2000-09-13 | Sulzer Metco AG | Verfahren zur Herstellung einer beschichteten Struktur, die sich zum Durchführen von heterogenen Katalysen eignet |
| CA2297543A1 (en) * | 1999-03-10 | 2000-09-10 | Sulzer Metco Ag | Method for the production of a coated structure which is suitable for carrying out heterogeneous catalyses |
| EP1320712B1 (en) * | 2000-07-28 | 2006-10-11 | Honda Giken Kogyo Kabushiki Kaisha | Multi-purpose microchannel micro-component |
| US6491985B2 (en) | 2000-12-20 | 2002-12-10 | Honda Giken Kogyo Kabushiki Kaisha | Method for enhancing the surface of a metal substrate |
| US6805846B2 (en) * | 2001-06-18 | 2004-10-19 | Honda Giken Kogyo Kabushiki Kaisha | Compact reactor capable of being charged with catalytic material for use in a hydrogen generation/fuel cell system |
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2001
- 2001-12-17 EP EP01273041A patent/EP1346077A2/en not_active Withdrawn
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- 2001-12-17 JP JP2002562793A patent/JP4388277B2/ja not_active Expired - Fee Related
- 2001-12-17 CA CA002431394A patent/CA2431394C/en not_active Expired - Fee Related
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2002
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| EP1346077A2 (en) | 2003-09-24 |
| CA2431394A1 (en) | 2002-08-15 |
| JP2004518816A (ja) | 2004-06-24 |
| US20020081251A1 (en) | 2002-06-27 |
| US6491985B2 (en) | 2002-12-10 |
| CA2431394C (en) | 2008-02-19 |
| WO2002063061A3 (en) | 2003-02-20 |
| JP2008248390A (ja) | 2008-10-16 |
| WO2002063061A2 (en) | 2002-08-15 |
| US7776281B2 (en) | 2010-08-17 |
| US20030064233A1 (en) | 2003-04-03 |
| JP4388277B2 (ja) | 2009-12-24 |
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