JP6983042B2 - ガスが通過するチムニー内に分散材料を備えている、交換塔の分配トレイ - Google Patents
ガスが通過するチムニー内に分散材料を備えている、交換塔の分配トレイ Download PDFInfo
- Publication number
- JP6983042B2 JP6983042B2 JP2017222383A JP2017222383A JP6983042B2 JP 6983042 B2 JP6983042 B2 JP 6983042B2 JP 2017222383 A JP2017222383 A JP 2017222383A JP 2017222383 A JP2017222383 A JP 2017222383A JP 6983042 B2 JP6983042 B2 JP 6983042B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquid
- tower
- distribution tray
- chimney
- 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.)
- Active
Links
- 238000009826 distribution Methods 0.000 title claims description 84
- 239000006185 dispersion Substances 0.000 title claims description 33
- 239000000463 material Substances 0.000 title claims description 33
- 239000007788 liquid Substances 0.000 claims description 89
- 238000012856 packing Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 238000004821 distillation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 6
- 238000006297 dehydration reaction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 119
- 150000001412 amines Chemical class 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
- B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/008—Liquid distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/16—Fractionating columns in which vapour bubbles through liquid
- B01D3/22—Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
- B01D3/324—Tray constructions
-
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- 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
- B01D53/26—Drying gases or vapours
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/263—Drying gases or vapours by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
-
- 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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- 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
- B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
-
- 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
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Gas Separation By Absorption (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
− 分配トレイの高さ:1.4m
− 気体通過専用チムニーの数:6
− チムニーの高さ:0.555m
− 気体チムニー内の構造化パッキンの厚さ:0.555m
− チムニーと蓋との間の距離:0.1m
− チムニーの出口とパッキン層(多孔材料で作られたパッキン)との間の距離:0.9m
− 塔内の表面気体速度:Vsg=0.35m/s
− 気体の反応速度因子:2.7Pa0.5
− 圧力:大気圧
− 温度:25℃
2 分配トレイ
3 セクション
4 チムニー
5 液体通過チムニー
6 気体分散材料
7 蓋
8 開口部
9 下降管
Claims (14)
- 気体と液体との間で熱および物質の少なくとも一方を交換するための塔の分配トレイ(2)であって、
前記分配トレイ(2)を介して前記気体を専用的に通過させる、前記分配トレイ(2)の上部から突出している少なくとも1つのチムニー(4)と、
前記分配トレイ(2)を介した液体の通過を可能にする少なくとも1つの手段(5)と、を備え、
前記気体を専用的に通過するための少なくとも1つのチムニー(4)の内側に、前記気体を分散させる分散材料が設けられ、
前記分散材料は、ランダムパッキンまたは構造化パッキンである、分配トレイ。 - 前記分散材料は、前記気体を専用的に通過させるためのチムニー(4)の内側に、長手方向および横断面内に均一に設けられている、請求項1に記載の分配トレイ。
- 前記分散材料は、少なくとも10cmを超える厚さにわたって設けられている、請求項2に記載の分配トレイ。
- 前記気体を専用に通過させるためのチムニー(4)は、実質的に直方体である、請求項1から3のいずれか1項に記載の分配トレイ。
- 前記気体を専用に通過させるためのチムニー(4)は、実質的に円筒形である、請求項1から3のいずれか1項に記載の分配トレイ。
- 前記気体を専用に通過させるためのチムニー(4)の全ての内側に、前記分散材料が設けられている、請求項1から5のいずれか1項に記載の分配トレイ。
- 前記液体の通過を可能にする手段(5)は、液体を通過させる複数の孔(5)および複数のチムニー(5)の少なくとも一方を備える、請求項1から6のいずれか1項に記載の分配トレイ。
- 前記液体を通過させるチムニー(5)は、前記トレイの上部および前記トレイの下部の少なくとも一方から突出している、請求項7に記載の分配トレイ。
- 前記分配トレイ(2)は、前記分配トレイ(2)上に均一に分配されている複数の前記液体の通過を可能にする手段(5)を備えている、請求項1から8のいずれか1項に記載の分配トレイ。
- 前記液体の通過を可能にする手段は、前記トレイの周縁部に配置されている下降管(9)を含む、請求項1から6のいずれか1項に記載の分配トレイ。
- 気体と液体との間で熱および物質の少なくとも一方を交換するための塔であって、前記気体および前記液体である2つの流体は、少なくとも1つの気体/液体コンタクタ(3)によって接触され、
前記塔は、前記流体を前記気体/液体コンタクタ(3)に分配するための、請求項1から10のいずれか1項に記載の少なくとも1つの分配トレイ(2)を含むことを特徴とする塔。 - 請求項1から10のいずれか1項に記載の少なくとも1つの分配トレイが前記塔底部に配置されている、請求項11に記載の塔。
- 前記塔が複数のセクションを備えており、前記セクションの各々が、気体/液体コンタクタおよび請求項1から10のいずれか1項に記載の分配トレイを含む、請求項11に記載の塔。
- 気体処理、CO2捕捉、蒸留、脱水、または空気変換の方法のために請求項11から13のいずれか1項に記載の塔を用いる、塔の使用方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1661339 | 2016-11-22 | ||
FR1661339A FR3058901B1 (fr) | 2016-11-22 | 2016-11-22 | Plateau distributeur pour colonne d'echange comprenant un materiau dispersif au sein d'une cheminee pour le passage du gaz |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018083194A JP2018083194A (ja) | 2018-05-31 |
JP6983042B2 true JP6983042B2 (ja) | 2021-12-17 |
Family
ID=57796663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017222383A Active JP6983042B2 (ja) | 2016-11-22 | 2017-11-20 | ガスが通過するチムニー内に分散材料を備えている、交換塔の分配トレイ |
Country Status (8)
Country | Link |
---|---|
US (1) | US10786752B2 (ja) |
EP (1) | EP3323484B1 (ja) |
JP (1) | JP6983042B2 (ja) |
CN (1) | CN108079749A (ja) |
CA (1) | CA2985781A1 (ja) |
ES (1) | ES2771349T3 (ja) |
FR (1) | FR3058901B1 (ja) |
RU (1) | RU2747201C2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3074055B1 (fr) * | 2017-11-30 | 2022-06-03 | Ifp Energies Now | Plateau distributeur de gaz pour fond de colonne de contact gaz/liquide comprenant une zone de collecte de liquide partiellement recouverte par des cheminees de gaz |
FR3100320B1 (fr) * | 2019-09-02 | 2022-02-18 | Air Liquide | Dispositif de distribution destiné à une colonne de séparation gaz/liquide |
US20230266074A1 (en) * | 2022-02-20 | 2023-08-24 | Molecule Works Inc. | Device for mass and/or heat transfer and process for capturing a molecule in a process fluid using the device |
CN114832438B (zh) * | 2022-05-31 | 2024-07-16 | 成都格莱高科技有限公司 | 一种用于无水乙腈的脱水处理设备及其处理工艺 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US471369A (en) * | 1892-03-22 | Reciprocating mechanism for printing-presses | ||
CH642566A5 (de) * | 1979-10-25 | 1984-04-30 | Sulzer Ag | Trogartige vorrichtung zum sammeln und verteilen der fluessigkeit in einer gegenstromkolonne. |
NZ216073A (en) * | 1985-05-29 | 1988-06-30 | Mobil Oil Corp | Reducing entrainment of liquid droplets in vapour stream of distillation tower |
JP3002360B2 (ja) * | 1993-07-26 | 2000-01-24 | 株式会社ジャパンエナジー | 分散装置 |
US5464573A (en) | 1994-05-09 | 1995-11-07 | Koch Engineering Company, Inc. | Liquid collector-distributor with integral exchange column and method |
RU2103049C1 (ru) * | 1995-05-18 | 1998-01-27 | Пензенский государственный архитектурно-строительный институт | Способ дезодорации потоков пара и воздуха |
US5752538A (en) * | 1995-12-13 | 1998-05-19 | Praxair Technology, Inc. | Liquid distributor for packed columns |
FR2807676B1 (fr) * | 2000-04-17 | 2002-07-12 | Inst Francais Du Petrole | Sous-ensemble polyfonctionnel assurant la mise en contact, la distribution de matiere et l'echange de chaleur et/ou de matiere d'au moins une phase gazeuse et d'au moins une phase liquide |
US8408026B2 (en) * | 2007-08-21 | 2013-04-02 | Air Products And Chemicals, Inc. | Liquid collector and redistributor for packed columns |
JP2009127451A (ja) * | 2007-11-20 | 2009-06-11 | Osaka Gas Co Ltd | 流体混合装置及び脱硝装置 |
CN101254354A (zh) * | 2007-12-07 | 2008-09-03 | 北京化工大学 | 填料式导向塔板 |
FR2936717A1 (fr) | 2008-10-07 | 2010-04-09 | Air Liquide | Distributeur de liquide |
KR101876593B1 (ko) * | 2011-01-10 | 2018-07-09 | 코크-글리취 엘피 | 접촉 트레이 및 이를 사용하는 방법 |
FR2978679B1 (fr) * | 2011-08-03 | 2014-01-17 | Total Raffinage Marketing | Plateau distributeur d'un gaz et d'un liquide, reacteur equipe d'un tel plateau et utilisation dudit plateau. |
DE102011119148A1 (de) * | 2011-11-22 | 2013-05-23 | Linde Ag | Kolonne |
FR2989594B1 (fr) * | 2012-04-18 | 2015-04-24 | IFP Energies Nouvelles | Plateau distributeur pour colonne de contact gaz/liquide offshore |
US9987566B2 (en) * | 2013-01-16 | 2018-06-05 | Sulzer Chemtech Ag | Hybrid contact tray for a mass transfer column |
FR3006599B1 (fr) * | 2013-06-10 | 2015-05-29 | IFP Energies Nouvelles | Plateau distributeur pour colonne de contact gaz/liquide avec systeme de distribution secondaire |
FR3016533B1 (fr) * | 2014-01-21 | 2016-01-15 | IFP Energies Nouvelles | Plateau distributeur pour colonne d'echange entre un gaz et un liquide avec deflecteur de liquide |
FR3018200B1 (fr) * | 2014-03-10 | 2017-12-01 | Ifp Energies Now | Contacteur pour colonne d'echange constitue de compartiments de garnissage vrac |
FR3030295B1 (fr) * | 2014-12-17 | 2018-09-28 | IFP Energies Nouvelles | Plateau distributeur compact pour les colonnes de contact gaz/liquide en mer |
-
2016
- 2016-11-22 FR FR1661339A patent/FR3058901B1/fr active Active
-
2017
- 2017-11-06 ES ES17306534T patent/ES2771349T3/es active Active
- 2017-11-06 EP EP17306534.3A patent/EP3323484B1/fr active Active
- 2017-11-15 CA CA2985781A patent/CA2985781A1/fr active Pending
- 2017-11-20 CN CN201711160256.9A patent/CN108079749A/zh active Pending
- 2017-11-20 JP JP2017222383A patent/JP6983042B2/ja active Active
- 2017-11-21 RU RU2017140420A patent/RU2747201C2/ru active
- 2017-11-22 US US15/821,023 patent/US10786752B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2985781A1 (fr) | 2018-05-22 |
US20180140966A1 (en) | 2018-05-24 |
RU2017140420A (ru) | 2019-05-21 |
JP2018083194A (ja) | 2018-05-31 |
US10786752B2 (en) | 2020-09-29 |
EP3323484B1 (fr) | 2020-01-08 |
RU2747201C2 (ru) | 2021-04-29 |
FR3058901B1 (fr) | 2021-07-30 |
EP3323484A1 (fr) | 2018-05-23 |
RU2017140420A3 (ja) | 2020-10-19 |
FR3058901A1 (fr) | 2018-05-25 |
ES2771349T3 (es) | 2020-07-06 |
CN108079749A (zh) | 2018-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6983042B2 (ja) | ガスが通過するチムニー内に分散材料を備えている、交換塔の分配トレイ | |
US9993743B2 (en) | Distributor tray for gas/liquid contact column with secondary distribution system | |
SA07280030B1 (ar) | جهاز ملامسة تيار مشترك من سائل وبخار | |
AU2012351570B2 (en) | Contact and separation column and tray | |
US20190184331A1 (en) | Tray for exchange column comprising gas chimneys surmounted by hats with a streamlined profile | |
AU2015268696A1 (en) | Distributor tray for heat and/or material exchange column comprising bubbling means | |
US20180304192A1 (en) | Column for exchanging heat and/or material between two fluids comprising a collector tray and gas mixing means | |
EP2370204B1 (en) | De-entrainment device | |
CN101507884A (zh) | 新型填料塔 | |
WO2011102749A1 (ru) | Пакетная вихревая насадка для тепло- и массообменных колонных аппаратов | |
CN111989144A (zh) | 采用偏移接触模块的蒸气-液体接触装置和方法 | |
CN104624148A (zh) | 带收集槽式液体分布器 | |
US9625221B2 (en) | Liquid distribution device utilizing packed distribution troughs and a mass transfer column and process involving same | |
US10357740B2 (en) | Liquid redistributor | |
US11904262B2 (en) | Vapor-liquid contacting apparatus and process with cross contacting | |
TW201941823A (zh) | 於殼體處具有降液管的蒸汽液體接觸設備及程序 | |
WO2015071221A1 (en) | Contact and separation column and tray | |
RU87103U1 (ru) | Регулярная насадка для пленочных тепломассообменных аппаратов |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200821 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210519 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210601 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210624 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20211102 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20211122 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6983042 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |