JP6536036B2 - 光ファイバ - Google Patents
光ファイバ Download PDFInfo
- Publication number
- JP6536036B2 JP6536036B2 JP2015004887A JP2015004887A JP6536036B2 JP 6536036 B2 JP6536036 B2 JP 6536036B2 JP 2015004887 A JP2015004887 A JP 2015004887A JP 2015004887 A JP2015004887 A JP 2015004887A JP 6536036 B2 JP6536036 B2 JP 6536036B2
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- Japan
- Prior art keywords
- optical fiber
- core
- intensity
- refractive index
- raman scattering
- 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.)
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- 239000013307 optical fiber Substances 0.000 title claims description 56
- 239000011521 glass Substances 0.000 claims description 97
- 238000001069 Raman spectroscopy Methods 0.000 claims description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 48
- 238000001228 spectrum Methods 0.000 claims description 28
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 27
- 229910052700 potassium Inorganic materials 0.000 claims description 27
- 239000011591 potassium Substances 0.000 claims description 27
- 239000000377 silicon dioxide Substances 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 15
- 238000005253 cladding Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 229910018557 Si O Inorganic materials 0.000 claims description 10
- 230000005684 electric field Effects 0.000 claims description 10
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 41
- 229910052783 alkali metal Inorganic materials 0.000 description 26
- 150000001340 alkali metals Chemical class 0.000 description 25
- 238000000034 method Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 13
- 238000005530 etching Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 10
- 239000000460 chlorine Substances 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 8
- 229910052801 chlorine Inorganic materials 0.000 description 8
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
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- 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
- G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties
-
- 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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- 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]
- C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
-
- 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]
- C03B37/01466—Means for changing or stabilising the diameter or form of tubes or rods
- C03B37/01473—Collapsing
-
- 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
-
- 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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
-
- 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
-
- 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
- C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
- C03C25/68—Chemical treatment, e.g. leaching, acid or alkali treatment by etching
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
-
- 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
- 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
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/30—Doped silica-based glasses containing metals
- C03C2201/50—Doped silica-based glasses containing metals containing alkali metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Compositions (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
が0.48以下である。
[補正後のスペクトル] = [測定されたスペクトル] × [各チャネル補正係数]
[各チャネル補正係数] = [校正用ハロゲンランプの測定されたスペクトル]
÷ [校正用ハロゲンランプの理論上のスペクトル]
そして、補正後のラマン散乱スペクトルの波数依存性のデータに基づいて、Si-O伸縮振動によるラマン散乱光ω3の強度Iω3を算出するとともに、シリカ三員環構造に帰属されるラマン散乱光D2の強度ID2を算出して、これらID2とIω3との強度比ID2/Iω3を算出する。
Claims (3)
- 石英系ガラスを主成分とし、カリウムを含むコアと、前記コアを取り囲み前記コアの屈折率より小さい屈折率を有するクラッドとを備える光ファイバであって、
前記光ファイバの断面において、カリウム濃度は、ファイバ軸中心位置にピークを有するだけでなく、径方向の或る位置においてもピークを有し、
ラマン散乱スペクトルにおける波数範囲750〜875cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるSi-O伸縮振動によるラマン散乱光ω3の強度Iω3と波数範囲565〜640cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるシリカ三員環構造によるラマン散乱光D2の強度ID2との比ID2/Iω3の径方向分布を、屈折率プロファイルに基づいて計算される波長1550nmの導波光の電界分布E(r)で、直径20μmの領域で重みづけを行って得られる値
- 石英系ガラスを主成分とし、カリウムを含むコアと、前記コアを取り囲み前記コアの屈折率より小さい屈折率を有するクラッドとを備える光ファイバであって、
前記光ファイバの断面において、カリウム濃度は、ファイバ軸中心位置にピークを有するだけでなく、径方向の或る位置においてもピークを有し、
ラマン散乱スペクトルにおける波数範囲750〜875cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるSi-O伸縮振動によるラマン散乱光ω3の強度Iω3と波数範囲565〜640cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるシリカ三員環構造によるラマン散乱光D2の強度ID2との比ID2/Iω3が、屈折率プロファイルに基づいて計算される波長1550nmの導波光の電界が最大となる径方向位置において0.50以下である光ファイバ。 - 石英系ガラスを主成分とし、カリウムを含むコアと、前記コアを取り囲み前記コアの屈折率より小さい屈折率を有するクラッドとを備える光ファイバであって、
前記光ファイバの断面において、カリウム濃度は、ファイバ軸中心位置にピークを有するだけでなく、径方向の或る位置においてもピークを有し、
ラマン散乱スペクトルにおける波数範囲750〜875cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるSi-O伸縮振動によるラマン散乱光ω3の強度Iω3と波数範囲565〜640cm -1 に引かれたベースラインとラマン散乱スペクトルとの間に挟まれた領域の平均強度で定義されるシリカ三員環構造によるラマン散乱光D2の強度ID2との比ID2/Iω3の径方向分布において、屈折率プロファイルに基づいて計算される波長1550nmの導波光の電界が最大となる径方向位置での値とファイバ軸中心での値との差が0.15以下である光ファイバ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015004887A JP6536036B2 (ja) | 2015-01-14 | 2015-01-14 | 光ファイバ |
DK16737384.4T DK3246736T3 (da) | 2015-01-14 | 2016-01-13 | Optisk fiber |
PCT/JP2016/050855 WO2016114313A1 (ja) | 2015-01-14 | 2016-01-13 | 光ファイバ |
EP16737384.4A EP3246736B1 (en) | 2015-01-14 | 2016-01-13 | Optical fiber |
CN201680005723.8A CN107111054B (zh) | 2015-01-14 | 2016-01-13 | 光纤 |
US15/645,303 US9910216B2 (en) | 2015-01-14 | 2017-07-10 | Optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015004887A JP6536036B2 (ja) | 2015-01-14 | 2015-01-14 | 光ファイバ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016130786A JP2016130786A (ja) | 2016-07-21 |
JP6536036B2 true JP6536036B2 (ja) | 2019-07-03 |
Family
ID=56405854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015004887A Active JP6536036B2 (ja) | 2015-01-14 | 2015-01-14 | 光ファイバ |
Country Status (6)
Country | Link |
---|---|
US (1) | US9910216B2 (ja) |
EP (1) | EP3246736B1 (ja) |
JP (1) | JP6536036B2 (ja) |
CN (1) | CN107111054B (ja) |
DK (1) | DK3246736T3 (ja) |
WO (1) | WO2016114313A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US11353650B2 (en) * | 2018-03-30 | 2022-06-07 | Nlight, Inc. | Single mode LMA (large mode area) fiber |
JP7119531B2 (ja) | 2018-04-20 | 2022-08-17 | 住友電気工業株式会社 | 光ファイバ |
JP6839686B2 (ja) * | 2018-09-05 | 2021-03-10 | 古河電気工業株式会社 | 光ファイバの製造方法 |
JP7136534B2 (ja) * | 2019-05-07 | 2022-09-13 | 株式会社豊田中央研究所 | 光ファイバレーザ装置 |
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 |
JP2021139963A (ja) * | 2020-03-02 | 2021-09-16 | 古河電気工業株式会社 | 光結合器及び光出力装置 |
WO2022004415A1 (ja) * | 2020-07-03 | 2022-01-06 | 住友電気工業株式会社 | 光ファイバ母材の製造方法及び光ファイバ母材 |
US20220283363A1 (en) * | 2021-03-03 | 2022-09-08 | Corning Incorporated | Optical fiber with reduced attenuation due to reduced absorption contribution |
CN117859082A (zh) * | 2021-10-14 | 2024-04-09 | 住友电气工业株式会社 | 光纤 |
WO2024176303A1 (ja) * | 2023-02-20 | 2024-08-29 | 日本電信電話株式会社 | 光ファイバの仮想温度の評価方法及び測定装置 |
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US5410428A (en) * | 1990-10-30 | 1995-04-25 | Shin-Etsu Quartz Products Co. Ltd. | Optical member made of high-purity and transparent synthetic silica glass and method for production thereof or blank thereof |
JP2782131B2 (ja) * | 1990-11-26 | 1998-07-30 | 信越石英株式会社 | 透明合成シリカガラスからなる光学部材、該光学部材の製造方法及び該光学部材を用いた装置 |
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 |
US6821917B2 (en) * | 2002-06-14 | 2004-11-23 | The University Of Southampton | Tellurite glass and applications thereof |
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US20050144986A1 (en) * | 2003-12-30 | 2005-07-07 | Bookbinder Dana C. | Method of making an optical fiber preform |
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US9139466B2 (en) * | 2011-01-20 | 2015-09-22 | Sumitomo Electric Industries, Ltd. | Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform |
JP6136261B2 (ja) * | 2012-01-23 | 2017-05-31 | 住友電気工業株式会社 | 光ファイバ |
JP2014214079A (ja) * | 2013-04-30 | 2014-11-17 | 住友電気工業株式会社 | 光ファイバ母材 |
JP6337509B2 (ja) * | 2014-02-24 | 2018-06-06 | 住友電気工業株式会社 | 光ファイバ母材製造方法 |
DK3173388T3 (en) * | 2014-07-22 | 2018-10-29 | Sumitomo Electric Industries | PROCEDURE FOR MANUFACTURING OPTICAL FIBER PREFORM |
JP6613604B2 (ja) * | 2015-04-30 | 2019-12-04 | 住友電気工業株式会社 | 光ファイバ母材 |
US9919955B2 (en) * | 2015-07-24 | 2018-03-20 | Ofs Fitel, Llc | Optical fiber with low loss and nanoscale structurally homogeneous core |
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2015
- 2015-01-14 JP JP2015004887A patent/JP6536036B2/ja active Active
-
2016
- 2016-01-13 EP EP16737384.4A patent/EP3246736B1/en active Active
- 2016-01-13 WO PCT/JP2016/050855 patent/WO2016114313A1/ja active Application Filing
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