JP5688264B2 - 膨張黒鉛シート及びその製造方法 - Google Patents
膨張黒鉛シート及びその製造方法 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 88
- 229910002804 graphite Inorganic materials 0.000 title claims description 86
- 239000010439 graphite Substances 0.000 title claims description 86
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- 239000011593 sulfur Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 11
- 238000010306 acid treatment Methods 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 239000007770 graphite material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 229910021382 natural graphite Inorganic materials 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium superoxide Chemical compound [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 235000011835 quiches Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 ammonium peroxide Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Inorganic materials O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/22—Intercalation
- C01B32/225—Expansion; Exfoliation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2469—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollable bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Carbon And Carbon Compounds (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
上記構成であれば、ある程度の低灰分化を図りつつ可撓性の低下を抑制することができる。したがって、膨張黒鉛シートを所望の形状に成型する際に、表面にひび割れが生じたり、欠けが生じることを抑制することができるので、成型品の品質と歩留りとを飛躍的に向上させることができる。
尚、本明細書において灰分とは、アルミニウム、鉄等の金属成分、若しくは金属成分に由来する不純物をいうものとする。
このような構成であれば、上記作用効果が一層発揮される。
上記方法の如く、ハロゲンガスによる高純度化処理を経ることなく膨張黒鉛シートを作製すれば、硫酸中の硫黄成分が膨張黒鉛シート内に残存することになるため、膨張黒鉛シートの可撓性が向上する。また、灰分が0.1重量%以下の黒鉛材料を用いているので、高純度化処理を経なくても、灰分量がある程度低減された膨張黒鉛シートを得ることができる。
(1)原料である黒鉛としては、上記天然黒鉛に限定するものではなく、熱分解黒鉛、キッシュ黒鉛などであっても良いが、工業的に入手が容易な天然鱗片状黒鉛を使用するのが好ましい。但し、如何なる黒鉛を用いた場合であっても、灰分量は0.1重量%以下に規制する必要がある。また、黒鉛の粒度は30〜100メッシュのものを使用することが望ましい。
上記発明を実施するための形態と同様にして膨張黒鉛シートを作製した。
このようにして作製した膨張黒鉛シートを、以下、本発明シートAと称する。
原料である天然黒鉛として、灰分量が0.5重量%のものを用いた他は、上記実施例と同様にして膨張黒鉛シートを作製した。
このようにして作製した膨張黒鉛シートを、以下、比較シートZ1と称する。
原料である天然黒鉛として、灰分量が0.5重量%のものを用いると共に、シート作製後に、塩素ガスを供給しながら2000℃で10時間保持するという高純度化処理を行った他は、上記実施例と同様にして膨張黒鉛シートを作製した。
このようにして作製した膨張黒鉛シートを、以下、比較シートZ2と称する。
上記本発明シートA及び比較シートZ1、Z2における灰分量、硫黄量、可撓性(膨張黒鉛シートの折り曲げ可能な回数)外観(通常の外観、巻きつけ後の外観)を測定したので、それらの結果を表1に示す。尚、灰分量、硫黄量、可撓性の測定方法は下記の通りであり、外観は目視により行った。
膨張黒鉛シートの灰分量の測定は、磁性ルツボに高純度膨張黒鉛シート15g以上を秤量しこれを電気炉に入れ、850℃で48時間加熱し、加熱前の質量と加熱後の質量から灰分を測定した。
酸素気流中燃焼−赤外線吸収法(測定装置:LECO社製硫黄分析装置)にて測定した。
膨張黒鉛シートの可撓性の測定には、図1及び図2に示す可撓性測定装置を用いた。この可撓性測定装置は基台1を有しており、この基台1の上端近傍には、基台1に対して回転自在な回転体2が配置されている。この回転体2は、円柱状の本体部2aと、この本体部2aの下部に固定されて膨張黒鉛シート3を保持する挟持部2bとから構成されている。また、上記回転体2には、回転体2に固定されて回転体2と共に回動する回動板8が固定されており、この回動板8には、回動板8を図1の矢符方向に回動させるためのハンドル4が固定されている。また、回動板8の下端部近傍には、上記回転体2(回動板8)を回動した場合に、上記膨張黒鉛シート3の曲げ位置を決定する曲げ位置決定部材5(直径:6mm)が固定されている。
3:膨張黒鉛シート
5:曲げ位置決定部材
7:錘
Claims (2)
- 板状の膨張黒鉛シートの一端が固定される回転体と、上記膨張黒鉛シートの他端に固定される錘と、上記回転体を回動した場合の上記膨張黒鉛シートの曲げ位置を決定する曲げ位置決定部材とを有する可撓性測定装置を用い、上記膨張黒鉛シートの幅を10mm、厚さを0.42mm、上記回転体からの垂下部分の長さを90mm、上記錘を50g、上記回転体の左右方向の回動角を鉛直方向からそれぞれ30°とし、且つ、上記曲げ位置決定部材の配置位置が上記膨張黒鉛シートの下端から20mmとした場合に、上記膨張黒鉛シートの折り曲げ可能な回数を可撓性とする可撓性測定試験において可撓性が25回以上であって、且つ灰分含有量が300ppm以下で、しかも硫黄含有量が1000ppm以上であることを特徴とする膨張黒鉛シート。
- 請求項1記載の膨張黒鉛シートの製造方法であって、
灰分が0.1重量%以下の黒鉛材料を、膨張黒鉛シートの硫黄含有量が1000ppm以上となるような濃度で硫酸が含まれた酸処理液に浸漬して、攪拌することにより、酸処理黒鉛を作製するステップと、
上記酸処理黒鉛を中和処理するステップと、
上記中和処理がなされた酸処理黒鉛を加熱することにより膨張化処理を行って、膨張黒鉛を作製するステップと、
上記膨張黒鉛を加圧するステップと、
を有することを特徴とする膨張黒鉛シートの製造方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010235259A JP5688264B2 (ja) | 2010-10-20 | 2010-10-20 | 膨張黒鉛シート及びその製造方法 |
US13/879,223 US9556033B2 (en) | 2010-10-20 | 2011-10-17 | Expanded graphite sheet and method of manufacturing same |
EP11834300.3A EP2631214A1 (en) | 2010-10-20 | 2011-10-17 | Expandable graphite sheet and manufacturing method therefor |
SG2013026778A SG189343A1 (en) | 2010-10-20 | 2011-10-17 | Expanded graphite sheet and method of manufacturing same |
CN201180048234.8A CN103153853B (zh) | 2010-10-20 | 2011-10-17 | 膨胀石墨片及其制造方法 |
PCT/JP2011/073777 WO2012053461A1 (ja) | 2010-10-20 | 2011-10-17 | 膨張黒鉛シート及びその製造方法 |
KR1020137010838A KR20140021515A (ko) | 2010-10-20 | 2011-10-17 | 팽창 흑연 시트 및 그 제조 방법 |
TW100137720A TWI507358B (zh) | 2010-10-20 | 2011-10-18 | An expanded graphite sheet and a method for manufacturing the same |
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JP2010235259A JP5688264B2 (ja) | 2010-10-20 | 2010-10-20 | 膨張黒鉛シート及びその製造方法 |
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JP2012087008A JP2012087008A (ja) | 2012-05-10 |
JP5688264B2 true JP5688264B2 (ja) | 2015-03-25 |
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US (1) | US9556033B2 (ja) |
EP (1) | EP2631214A1 (ja) |
JP (1) | JP5688264B2 (ja) |
KR (1) | KR20140021515A (ja) |
CN (1) | CN103153853B (ja) |
SG (1) | SG189343A1 (ja) |
TW (1) | TWI507358B (ja) |
WO (1) | WO2012053461A1 (ja) |
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JP7311975B2 (ja) * | 2019-02-04 | 2023-07-20 | 日本特殊陶業株式会社 | セラミックス部材の製造方法 |
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JPS4423966Y1 (ja) | 1966-10-19 | 1969-10-09 | ||
US5149518A (en) | 1989-06-30 | 1992-09-22 | Ucar Carbon Technology Corporation | Ultra-thin pure flexible graphite calendered sheet and method of manufacture |
DE69012675T2 (de) * | 1989-06-30 | 1995-05-04 | Ucar Carbon Tech | Graphitfolie. |
JPH042150A (ja) | 1990-04-19 | 1992-01-07 | Sumitomo Electric Ind Ltd | 半導体集積回路 |
JP2620606B2 (ja) * | 1990-05-16 | 1997-06-18 | 東洋炭素株式会社 | 高純度可撓性膨張黒鉛シート及びその製造方法 |
US5582811A (en) | 1990-12-21 | 1996-12-10 | Ucar Carbon Technology Corporation | Stable blister free flexible graphite and method |
JP2980779B2 (ja) * | 1991-09-09 | 1999-11-22 | ユーカー、カーボン、テクノロジー、コーポレーション | 安定した膨れを生じないたわみ性グラファイトおよびその製造方法 |
US6828064B1 (en) | 1998-01-07 | 2004-12-07 | Eveready Battery Company, Inc. | Alkaline cell having a cathode incorporating enhanced graphite |
CN1062834C (zh) * | 1998-08-31 | 2001-03-07 | 四川轻化工学院 | 一种用中碳天然鳞片石墨粉制取柔性石墨材料的方法 |
DE10204468C1 (de) * | 2002-02-05 | 2003-06-18 | Sgl Carbon Ag | Verfahren zur Herstellung von hochreinen Verschleißeinlagen, nach dem Verfahren erhältliche Verschleißeinlage und deren Verwendung |
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2010
- 2010-10-20 JP JP2010235259A patent/JP5688264B2/ja active Active
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2011
- 2011-10-17 CN CN201180048234.8A patent/CN103153853B/zh active Active
- 2011-10-17 US US13/879,223 patent/US9556033B2/en active Active
- 2011-10-17 SG SG2013026778A patent/SG189343A1/en unknown
- 2011-10-17 WO PCT/JP2011/073777 patent/WO2012053461A1/ja active Application Filing
- 2011-10-17 EP EP11834300.3A patent/EP2631214A1/en not_active Withdrawn
- 2011-10-17 KR KR1020137010838A patent/KR20140021515A/ko not_active Application Discontinuation
- 2011-10-18 TW TW100137720A patent/TWI507358B/zh active
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Publication number | Publication date |
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EP2631214A1 (en) | 2013-08-28 |
TW201223865A (en) | 2012-06-16 |
SG189343A1 (en) | 2013-05-31 |
US9556033B2 (en) | 2017-01-31 |
KR20140021515A (ko) | 2014-02-20 |
CN103153853A (zh) | 2013-06-12 |
TWI507358B (zh) | 2015-11-11 |
CN103153853B (zh) | 2015-11-25 |
US20130202872A1 (en) | 2013-08-08 |
WO2012053461A1 (ja) | 2012-04-26 |
JP2012087008A (ja) | 2012-05-10 |
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