JP5903896B2 - 光ファイバ母材製造方法 - Google Patents
光ファイバ母材製造方法 Download PDFInfo
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- JP5903896B2 JP5903896B2 JP2012003333A JP2012003333A JP5903896B2 JP 5903896 B2 JP5903896 B2 JP 5903896B2 JP 2012003333 A JP2012003333 A JP 2012003333A JP 2012003333 A JP2012003333 A JP 2012003333A JP 5903896 B2 JP5903896 B2 JP 5903896B2
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- alkali metal
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- 239000013307 optical fiber Substances 0.000 title claims description 61
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000011521 glass Substances 0.000 claims description 123
- 229910052783 alkali metal Inorganic materials 0.000 claims description 113
- -1 alkali metal salt Chemical class 0.000 claims description 61
- 150000001340 alkali metals Chemical class 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 46
- 238000009792 diffusion process Methods 0.000 claims description 42
- 239000002994 raw material Substances 0.000 claims description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000005253 cladding Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 239000012159 carrier gas Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 19
- 239000013078 crystal Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/60—Surface treatment of fibres or filaments made from glass, minerals or slags by diffusing ions or metals into the surface
- C03C25/607—Surface treatment of fibres or filaments made from glass, minerals or slags by diffusing ions or metals into the surface in the gaseous phase
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/50—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with alkali metals
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/23—Double or multiple optical cladding profiles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/26—Parabolic or graded index [GRIN] core profile
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/80—Feeding the burner or the burner-heated deposition site
- C03B2207/90—Feeding the burner or the burner-heated deposition site with vapour generated from solid glass precursors, i.e. by sublimation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03605—Highest refractive index not on central axis
- G02B6/03611—Highest index adjacent to central axis region, e.g. annular core, coaxial ring, centreline depression affecting waveguiding
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
- G02B6/03627—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only arranged - +
-
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Glass Compositions (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
Claims (8)
- アルカリ金属塩原料を加熱して生成したアルカリ金属塩の蒸気をキャリアガスとともに石英系のガラスパイプの一端側から前記ガラスパイプの内部に供給し、前記ガラスパイプの長手方向に相対的に移動する熱源により前記ガラスパイプを加熱して、アルカリ金属元素を酸化反応させて前記ガラスパイプの内側に熱拡散させる熱拡散工程と、
この熱拡散工程後の前記ガラスパイプを中実化してコアロッドを作製する中実化工程と、
この中実化工程で作製されたコアロッドの周囲にクラッド部を付加するクラッド部付加工程と、
を備え、
前記熱拡散工程において、前記熱源による前記ガラスパイプの加熱によって前記ガラスパイプの内側へのアルカリ金属元素の熱拡散の開始の際にアルカリ金属塩の蒸気圧を0.1kPa以下に相当する温度でアルカリ金属塩原料を加熱し、その後、前記熱源による前記ガラスパイプの加熱中にアルカリ金属塩の蒸気圧を所望値とする温度までアルカリ金属塩原料を加熱する、
ことを特徴とする光ファイバ母材製造方法。 - 前記熱拡散工程において、前記熱源による前記ガラスパイプの加熱によって前記ガラスパイプの内側へのアルカリ金属元素の熱拡散の開始の際にアルカリ金属塩の蒸気圧を0.05kPa以下とする、
ことを特徴とする請求項1に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、アルカリ金属塩の蒸気圧を所望値とする温度までアルカリ金属塩原料を加熱する際の温度上昇速度を5℃/分以上15℃/分以下とする、
ことを特徴とする請求項1または2に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、アルカリ金属塩の蒸気圧を所望値とする温度までアルカリ金属塩原料を加熱する際に途中の温度で一定時間保持する、
ことを特徴とする請求項1〜3の何れか1項に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、前記熱源による前記ガラスパイプの加熱によって前記ガラスパイプの内側へのアルカリ金属元素の熱拡散の開始の際にアルカリ金属塩の加熱温度をアルカリ金属塩の融点以下とする、
ことを特徴とする請求項1〜4の何れか1項に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、前記熱源による前記ガラスパイプの加熱によって前記ガラスパイプの内側へのアルカリ金属元素の熱拡散の開始の際にアルカリ金属塩の加熱温度を734℃以下とする、
ことを特徴とする請求項1〜5の何れか1項に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、アルカリ金属塩がKBrまたはKIである、
ことを特徴とする請求項1〜6の何れか1項に記載の光ファイバ母材製造方法。 - 前記熱拡散工程において、キャリアガスが酸素を含む、
ことを特徴とする請求項1〜7の何れか1項に記載の光ファイバ母材製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012003333A JP5903896B2 (ja) | 2012-01-11 | 2012-01-11 | 光ファイバ母材製造方法 |
US14/115,660 US9199877B2 (en) | 2012-01-11 | 2012-12-28 | Method for manufacturing optical fiber base material, and optical fiber |
PCT/JP2012/084016 WO2013105459A1 (ja) | 2012-01-11 | 2012-12-28 | 光ファイバ母材製造方法及び光ファイバ |
DK12864976.1T DK2692705T3 (en) | 2012-01-11 | 2012-12-28 | PROCEDURE FOR MANUFACTURING OPTICAL FIBER BASIC MATERIAL |
CN201280021801.5A CN103502164B (zh) | 2012-01-11 | 2012-12-28 | 光纤基材的制造方法以及光纤 |
EP12864976.1A EP2692705B1 (en) | 2012-01-11 | 2012-12-28 | Method for manufacturing optical fiber base material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012003333A JP5903896B2 (ja) | 2012-01-11 | 2012-01-11 | 光ファイバ母材製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2013142049A JP2013142049A (ja) | 2013-07-22 |
JP5903896B2 true JP5903896B2 (ja) | 2016-04-13 |
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JP2012003333A Active JP5903896B2 (ja) | 2012-01-11 | 2012-01-11 | 光ファイバ母材製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9199877B2 (ja) |
EP (1) | EP2692705B1 (ja) |
JP (1) | JP5903896B2 (ja) |
CN (1) | CN103502164B (ja) |
DK (1) | DK2692705T3 (ja) |
WO (1) | WO2013105459A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5625037B2 (ja) | 2012-03-23 | 2014-11-12 | 株式会社フジクラ | ガラス母材の製造方法 |
JP5697065B2 (ja) * | 2013-01-29 | 2015-04-08 | 古河電気工業株式会社 | ガラス母材の製造方法 |
CN106458696B (zh) * | 2014-07-22 | 2019-05-17 | 住友电气工业株式会社 | 光纤母材的制造方法及光纤母材 |
JP6551137B2 (ja) * | 2015-10-15 | 2019-07-31 | 住友電気工業株式会社 | 光ファイバ |
DK3553035T3 (da) * | 2016-12-12 | 2023-08-21 | Sumitomo Electric Industries | Fremgangsmåde til fremstilling af et optisk fiberbasismateriale |
JP6854204B2 (ja) * | 2017-06-21 | 2021-04-07 | 株式会社フジクラ | 光ファイバ用母材の製造方法、光ファイバの製造方法、及びシリカガラスへのドープ方法 |
CN108002698B (zh) * | 2017-11-29 | 2020-01-14 | 长飞光纤光缆股份有限公司 | 一种光纤预制棒的制造方法 |
JP7397679B2 (ja) * | 2020-01-16 | 2023-12-13 | 株式会社フジクラ | 光ファイバ母材の製造方法及びこれを用いた光ファイバの製造方法 |
US20230202904A1 (en) * | 2020-07-03 | 2023-06-29 | Sumitomo Electric Industries, Ltd. | Method for producing optical fiber base material, and optical fiber base material |
CN114075037B (zh) * | 2020-08-21 | 2023-10-03 | 中天科技精密材料有限公司 | 掺碱金属光纤及其制备方法 |
Family Cites Families (15)
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US5146534A (en) | 1991-11-12 | 1992-09-08 | At&T Bell Laboratories | SiO2 -based alkali-doped optical fiber |
AU715509B2 (en) | 1996-07-16 | 2000-02-03 | Toyota Jidosha Kabushiki Kaisha | Ultralow-loss silica glass and optical fibers using the same |
US20040057692A1 (en) | 2002-08-28 | 2004-03-25 | Ball Laura J. | Low loss optical fiber and method for making same |
CN100545113C (zh) * | 2003-08-29 | 2009-09-30 | 康宁股份有限公司 | 含碱金属氧化物的光纤及制造该光纤的方法和设备 |
JP2007504080A (ja) | 2003-08-29 | 2007-03-01 | コーニング インコーポレイテッド | アルカリ金属酸化物を含有する光ファイバおよびその製造方法と装置 |
US20060130530A1 (en) * | 2004-12-21 | 2006-06-22 | Anderson James G | Method of doping silica glass with an alkali metal, and optical fiber precursor formed therefrom |
US7088900B1 (en) | 2005-04-14 | 2006-08-08 | Corning Incorporated | Alkali and fluorine doped optical fiber |
US7536076B2 (en) * | 2006-06-21 | 2009-05-19 | Corning Incorporated | Optical fiber containing alkali metal oxide |
US20080050086A1 (en) | 2006-08-24 | 2008-02-28 | Scott Robertson Bickham | Optical fiber containing alkali metal oxide |
US7844155B2 (en) * | 2007-05-07 | 2010-11-30 | Corning Incorporated | Optical fiber containing alkali metal oxide |
JP5656469B2 (ja) | 2010-06-23 | 2015-01-21 | 株式会社フジクラ | ガラス母材の製造装置および製造方法 |
US9139466B2 (en) * | 2011-01-20 | 2015-09-22 | Sumitomo Electric Industries, Ltd. | Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform |
JP2012162410A (ja) * | 2011-02-03 | 2012-08-30 | Sumitomo Electric Ind Ltd | 光ファイバ母材製造方法 |
CN104093674B (zh) * | 2012-01-25 | 2016-06-01 | 住友电气工业株式会社 | 光纤母材制备方法、光纤母材以及光纤 |
US9340444B2 (en) * | 2012-02-09 | 2016-05-17 | Sumitomo Electric Industries, Ltd. | Optical fiber preform manufacturing method, optical fiber preform, and optical fiber |
-
2012
- 2012-01-11 JP JP2012003333A patent/JP5903896B2/ja active Active
- 2012-12-28 EP EP12864976.1A patent/EP2692705B1/en active Active
- 2012-12-28 CN CN201280021801.5A patent/CN103502164B/zh active Active
- 2012-12-28 WO PCT/JP2012/084016 patent/WO2013105459A1/ja active Application Filing
- 2012-12-28 US US14/115,660 patent/US9199877B2/en active Active
- 2012-12-28 DK DK12864976.1T patent/DK2692705T3/en active
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Publication number | Publication date |
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JP2013142049A (ja) | 2013-07-22 |
EP2692705B1 (en) | 2017-10-25 |
WO2013105459A1 (ja) | 2013-07-18 |
DK2692705T3 (en) | 2017-12-04 |
CN103502164A (zh) | 2014-01-08 |
US9199877B2 (en) | 2015-12-01 |
EP2692705A4 (en) | 2015-06-24 |
EP2692705A1 (en) | 2014-02-05 |
US20140127507A1 (en) | 2014-05-08 |
CN103502164B (zh) | 2016-03-30 |
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