JP4448094B2 - プラズマ発生電極及びプラズマ反応器、並びに排気ガス浄化装置 - Google Patents
プラズマ発生電極及びプラズマ反応器、並びに排気ガス浄化装置 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0892—Electric or magnetic treatment, e.g. dissociation of noxious components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2418—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the electrodes being embedded in the dielectric
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2441—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes characterised by the physical-chemical properties of the dielectric, e.g. porous dielectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0809—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes
- B01J2219/0813—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes employing four electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0824—Details relating to the shape of the electrodes
- B01J2219/0835—Details relating to the shape of the electrodes substantially flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0873—Materials to be treated
- B01J2219/0875—Gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0894—Processes carried out in the presence of a plasma
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/30—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel reformer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2437—Multilayer systems
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Description
電極ユニットを構成する平板電極が、電極間距離が0.5mmの入口側の電極部分だけで構成された以外は、実施例1のプラズマ反応器と同様に構成されたプラズマ反応器に、パルス数が100回/秒となるように4kVのパルス電流を通電して同様の測定を行った。測定結果を表1に示す。
電極ユニットを構成する平板電極が、電極間距離が2.5mmの出口側の電極部分だけで構成された以外は、実施例1のプラズマ反応器と同様に構成されたプラズマ反応器に、パルス数が1000回/秒となるように6kVのパルス電流を通電して同様の測定を行った。測定結果を表1に示す。
比較例1のプラズマ反応器の下流側に実施例4に用いた触媒と同様の触媒を配置して排気ガス浄化装置を製造し、そのNOx浄化性能を評価した。プラズマ発生条件及びガス条件は、比較例1と同じである。
Claims (6)
- 複数の単位電極が所定間隔を隔てて階層的に積層されてなるとともに、前記単位電極相互間に、一の方向の両端が開放されるとともに他の方向の両端が閉鎖された空間が形成されてなり、これらの単位電極間に電圧を印加することによって前記空間においてプラズマを発生させることが可能なプラズマ発生電極であって、
前記単位電極が、誘電体となる板状のセラミック体と、前記セラミック体の内部に配設された導電膜から形成されるとともに、前記一の方向における一の端部から他の端部に至るまでの間に前記導電膜を欠落した部分を有する欠落単位電極と、欠落した部分を有しない通常単位電極とから構成されてなり、かつ
前記空間が、それぞれ対向する前記通常単位電極と前記欠落単位電極との間又は前記欠落単位電極相互間に、前記導電膜間の距離が前記単位電極相互間の距離となるように形成された複数の通常空間と、前記欠落単位電極の欠落部分を挟んでそれぞれ対向することになる前記通常単位電極相互間に、前記導電膜間の距離が前記通常空間における導電膜間の距離よりも長くなるように形成された複数の欠落空間とから構成されてなり、
前記通常空間と前記欠落空間とにおける、プラズマを発生させる前記単位電極を構成する前記導電膜間の距離が異なることにより、前記通常空間と前記欠落空間とにおいて発生するプラズマの大きさが異なり、
前記単位電極を構成する前記導電膜が、電圧が印加されたときに、それぞれ異なった電位となる複数の導電膜群から構成され、所定の電位となる前記導電膜群(第一の導電膜群)のそれぞれが、前記空間の前記他の方向の端部まで延設され、前記第一の導電膜群の場合とは異なる電位となる前記導電膜群(第二の導電膜群)のそれぞれが、前記空間の前記他の方向の端部まで延設され、
前記第一の導電膜群が延設された端部側の面及び前記第二の導電膜群が延設された端部側の面のそれぞれに導電膜(第一の側端部導電膜及び第二の側端部導電膜)が配設され、
前記第一の導電膜群と前記第一の側端部導電膜とが接触して電気的な導通が可能とされてなるとともに、前記第二の導電膜群と前記第二の側端部導電膜とが接触して電気的な導通が可能とされてなるプラズマ発生電極。 - 前記欠落単位電極が、前記単位電極を構成する前記導電膜の一部のみが欠落して形成されてなる請求項1に記載のプラズマ発生電極。
- 前記欠落単位電極が、前記単位電極を構成する前記セラミック体及び前記導電膜のそれぞれの一部が欠落して形成されてなる請求項1に記載のプラズマ発生電極。
- 請求項1〜3のいずれかに記載のプラズマ発生電極を備えてなり、前記プラズマ発生電極を構成する複数の前記単位電極相互間に形成された前記空間内に所定の成分を含有するガスが導入されたときに、前記空間内に発生させたプラズマにより前記ガス中の前記所定の成分を反応させることが可能なプラズマ反応器。
- 前記空間内に前記所定の成分を含有するガスが導入されたときに、前記所定成分のなかで、前記通常空間内で発生するプラズマにより反応される成分の種類と、前記欠落空間内で発生するプラズマにより反応される成分の種類とが異なる請求項4に記載のプラズマ反応器。
- 請求項4又は5に記載のプラズマ反応器と、触媒とを備え、前記プラズマ反応器と前記触媒とが、内燃機関の排気系の内部に配設された排気ガス浄化装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2003185327 | 2003-06-27 | ||
JP2003185327 | 2003-06-27 | ||
PCT/JP2004/009013 WO2005001249A1 (ja) | 2003-06-27 | 2004-06-25 | プラズマ発生電極及びプラズマ反応器、並びに排気ガス浄化装置 |
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JPWO2005001249A1 JPWO2005001249A1 (ja) | 2007-09-20 |
JP4448094B2 true JP4448094B2 (ja) | 2010-04-07 |
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JP2005511056A Expired - Fee Related JP4448094B2 (ja) | 2003-06-27 | 2004-06-25 | プラズマ発生電極及びプラズマ反応器、並びに排気ガス浄化装置 |
Country Status (5)
Country | Link |
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US (1) | US7648683B2 (ja) |
EP (1) | EP1647681B1 (ja) |
JP (1) | JP4448094B2 (ja) |
DE (1) | DE602004031843D1 (ja) |
WO (1) | WO2005001249A1 (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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GR1005436B (el) * | 2005-04-04 | 2007-02-14 | Γεωργιος Ευαγγελακης | Μεθοδος και συσκευη αποστειρωσης αερα εξαερισμου |
JP4636930B2 (ja) * | 2005-04-28 | 2011-02-23 | ミドリ安全株式会社 | 触媒保持装置及びガス除去装置 |
JP4863743B2 (ja) * | 2006-03-24 | 2012-01-25 | 日本碍子株式会社 | プラズマ発生電極、プラズマ反応器及び排ガス浄化装置 |
JP5053292B2 (ja) * | 2006-12-26 | 2012-10-17 | 京セラ株式会社 | プラズマ発生体及び反応装置 |
WO2008087944A1 (ja) * | 2007-01-15 | 2008-07-24 | Yamatake Corporation | ガス処理装置 |
JP5252931B2 (ja) * | 2008-01-16 | 2013-07-31 | 日本碍子株式会社 | セラミックプラズマ反応器、及びプラズマ反応装置 |
US10478517B2 (en) | 2008-09-19 | 2019-11-19 | Fipak Research And Development Company | Method and apparatus for purging unwanted substances from air |
US9120073B2 (en) * | 2009-06-05 | 2015-09-01 | Eon Labs, Llc | Distributed dielectric barrier discharge reactor |
DE102011078942A1 (de) * | 2011-07-11 | 2013-01-17 | Evonik Degussa Gmbh | Verfahren zur Herstellung höherer Silane mit verbesserter Ausbeute |
KR101182356B1 (ko) | 2012-04-27 | 2012-09-20 | 한국기계연구원 | 유해 기체 제거용 플라즈마-촉매 반응기 및 이를 이용한 유해 기체 처리 방법 |
IN2015DN03749A (ja) * | 2012-10-04 | 2015-09-18 | Fipak Res And Dev Company | |
US10882021B2 (en) | 2015-10-01 | 2021-01-05 | Ion Inject Technology Llc | Plasma reactor for liquid and gas and method of use |
WO2017058764A1 (en) | 2015-10-01 | 2017-04-06 | Buchanan Walter Riley | Plasma reactor for liquid and gas |
US11452982B2 (en) | 2015-10-01 | 2022-09-27 | Milton Roy, Llc | Reactor for liquid and gas and method of use |
US10187968B2 (en) | 2015-10-08 | 2019-01-22 | Ion Inject Technology Llc | Quasi-resonant plasma voltage generator |
US10046300B2 (en) | 2015-12-09 | 2018-08-14 | Ion Inject Technology Llc | Membrane plasma reactor |
JP7018283B2 (ja) * | 2017-09-28 | 2022-02-10 | ダイハツ工業株式会社 | プラズマリアクター |
CN112312637A (zh) * | 2019-08-02 | 2021-02-02 | 中国石油化工股份有限公司 | 等离子体发生器 |
TWI718966B (zh) * | 2020-06-15 | 2021-02-11 | 明志科技大學 | 電漿空氣清淨裝置 |
RU2764684C1 (ru) * | 2021-01-11 | 2022-01-19 | ЗАКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "ЛАЙТТЕК ПЛЮС" (ЗАО "Лайттек Плюс") | Устройство для очистки отходящих газов |
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JP2001164925A (ja) | 1999-12-10 | 2001-06-19 | Mitsubishi Motors Corp | プラズマ排気ガス処理システム |
JP2001193441A (ja) | 2000-01-11 | 2001-07-17 | Denso Corp | 内燃機関の排ガス浄化装置 |
JP2002129947A (ja) * | 2000-10-19 | 2002-05-09 | Denso Corp | 内燃機関の排気浄化装置 |
US6887440B2 (en) * | 2000-11-16 | 2005-05-03 | Delphi Technologies, Inc. | Edge-connected non-thermal plasma exhaust after-treatment device |
US6482368B2 (en) * | 2000-12-19 | 2002-11-19 | Delphi Technologies, Inc. | Non-thermal plasma reactor for lower power consumption |
GB0107020D0 (en) * | 2001-03-21 | 2001-05-09 | Aea Technology Plc | A reactor for plasma assisted treatment of gaseous media |
WO2004114729A1 (ja) | 2003-06-20 | 2004-12-29 | Ngk Insulators, Ltd. | プラズマ発生電極及びプラズマ発生装置、並びに排気ガス浄化装置 |
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- 2004-06-25 DE DE602004031843T patent/DE602004031843D1/de active Active
- 2004-06-25 US US10/561,840 patent/US7648683B2/en not_active Expired - Fee Related
- 2004-06-25 WO PCT/JP2004/009013 patent/WO2005001249A1/ja active Application Filing
- 2004-06-25 JP JP2005511056A patent/JP4448094B2/ja not_active Expired - Fee Related
- 2004-06-25 EP EP04746482A patent/EP1647681B1/en not_active Expired - Fee Related
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EP1647681B1 (en) | 2011-03-16 |
EP1647681A1 (en) | 2006-04-19 |
WO2005001249A1 (ja) | 2005-01-06 |
US7648683B2 (en) | 2010-01-19 |
US20060150911A1 (en) | 2006-07-13 |
EP1647681A4 (en) | 2009-11-18 |
DE602004031843D1 (de) | 2011-04-28 |
JPWO2005001249A1 (ja) | 2007-09-20 |
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