WO2002060830A8 - A process for making rare earth doped optical fibre - Google Patents
A process for making rare earth doped optical fibreInfo
- Publication number
- WO2002060830A8 WO2002060830A8 PCT/IN2001/000014 IN0100014W WO02060830A8 WO 2002060830 A8 WO2002060830 A8 WO 2002060830A8 IN 0100014 W IN0100014 W IN 0100014W WO 02060830 A8 WO02060830 A8 WO 02060830A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- core
- solution
- rare earth
- earth doped
- fibres
- Prior art date
Links
Classifications
-
- 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
- C03B37/01838—Reactant delivery systems, e.g. reactant deposition burners for delivering and depositing additional reactants as liquids or solutions, e.g. for solution doping of the deposited glass
-
- 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
- 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
- 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
- C03B37/01853—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
- 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
- C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
-
- 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
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- 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
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
-
- 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
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
- C03B2201/36—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers doped with rare earth metals and aluminium, e.g. Er-Al co-doped
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lasers (AREA)
- Glass Compositions (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB018230083A CN1274618C (en) | 2001-02-02 | 2001-02-02 | Process for making rare earth doped optical fibre |
CA002436579A CA2436579C (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
KR1020037010252A KR100655480B1 (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
PCT/IN2001/000014 WO2002060830A1 (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
AU2001242728A AU2001242728B2 (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
GB0318455A GB2388367B (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IN2001/000014 WO2002060830A1 (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002060830A1 WO2002060830A1 (en) | 2002-08-08 |
WO2002060830A8 true WO2002060830A8 (en) | 2003-11-20 |
Family
ID=11076302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2001/000014 WO2002060830A1 (en) | 2001-02-02 | 2001-02-02 | A process for making rare earth doped optical fibre |
Country Status (6)
Country | Link |
---|---|
KR (1) | KR100655480B1 (en) |
CN (1) | CN1274618C (en) |
AU (1) | AU2001242728B2 (en) |
CA (1) | CA2436579C (en) |
GB (1) | GB2388367B (en) |
WO (1) | WO2002060830A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111847864A (en) * | 2020-06-16 | 2020-10-30 | 武汉长进激光技术有限公司 | C-band expanded broadband gain erbium-doped optical fiber and preparation method thereof |
CN112592508A (en) * | 2019-10-01 | 2021-04-02 | 香港科技大学 | Method for producing optical fiber |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040112089A1 (en) * | 2002-12-16 | 2004-06-17 | Digiovanni David J. | Manufacture of optical fibers using enhanced doping |
US20040139765A1 (en) * | 2003-01-16 | 2004-07-22 | Sumitomo Electric Industries, Ltd. | Method of producing optical fiber preform, and optical fiber preform and optical fiber produced with the method |
US8381549B2 (en) * | 2006-06-26 | 2013-02-26 | Sumitomo Electric Industries, Ltd. | Optical fiber preform fabricating method |
JP5018492B2 (en) * | 2008-01-15 | 2012-09-05 | 住友電気工業株式会社 | Preform manufacturing method |
FR2939522B1 (en) * | 2008-12-08 | 2011-02-11 | Draka Comteq France | OPTICAL FIBER AMPLIFIER RESISTANT TO IONIZING RADIATION |
CN102086089A (en) * | 2010-12-27 | 2011-06-08 | 富通集团有限公司 | Method for manufacturing rare-earth-doped fiber precast rod |
CN102515501B (en) * | 2011-11-29 | 2014-04-30 | 富通集团有限公司 | Method for manufacturing doped optical fibre preform by MCVD (modified chemical vapour deposition) |
CN104058587B (en) * | 2014-07-14 | 2016-06-22 | 富通集团有限公司 | A kind of rare earth doped optical fibre prefabricated rods and preparation method thereof |
CN106966581A (en) * | 2017-05-18 | 2017-07-21 | 江苏亨通光导新材料有限公司 | A kind of preform and preparation method thereof |
CN110467342A (en) * | 2019-08-15 | 2019-11-19 | 武汉长进激光技术有限公司 | A kind of ultra wide band gain Er-doped fiber and preparation method thereof |
CN110467343A (en) * | 2019-08-23 | 2019-11-19 | 武汉长进激光技术有限公司 | A kind of nano-porous glass material hydroxyl-removal sintering method |
CN110510864A (en) * | 2019-09-11 | 2019-11-29 | 烽火通信科技股份有限公司 | The preparation method and preform of highly doped rare-earth-doped fiber precast rod |
CN115448590A (en) * | 2022-08-31 | 2022-12-09 | 长飞光纤光缆股份有限公司 | Method for preparing rare earth doped optical fiber preform by in-tube method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU625144B2 (en) * | 1989-10-31 | 1992-07-02 | Fujitsu Limited | Production method for optical fiber base material |
US5005175A (en) | 1989-11-27 | 1991-04-02 | At&T Bell Laboratories | Erbium-doped fiber amplifier |
ES2069877T3 (en) * | 1990-02-05 | 1995-05-16 | Furukawa Electric Co Ltd | QUARTZ GLASS DOPED WITH RARE EARTH ELEMENT AND ITS PRODUCTION. |
JP2766420B2 (en) | 1992-04-07 | 1998-06-18 | 株式会社フジクラ | Method for producing erbium-doped quartz |
GB2273389B (en) | 1992-12-14 | 1996-07-17 | Pirelli Cavi Spa | Rare earth doped optical fibre amplifiers |
JP3773575B2 (en) | 1996-01-12 | 2006-05-10 | 富士通株式会社 | Doped fiber, splicing method thereof, and optical amplifier |
US6578387B2 (en) * | 1999-04-09 | 2003-06-17 | Fitel Usa Corp. | Method of fabrication of rare earth doped preforms for optical fibers |
-
2001
- 2001-02-02 GB GB0318455A patent/GB2388367B/en not_active Expired - Lifetime
- 2001-02-02 KR KR1020037010252A patent/KR100655480B1/en active IP Right Grant
- 2001-02-02 WO PCT/IN2001/000014 patent/WO2002060830A1/en active IP Right Grant
- 2001-02-02 AU AU2001242728A patent/AU2001242728B2/en not_active Expired
- 2001-02-02 CA CA002436579A patent/CA2436579C/en not_active Expired - Lifetime
- 2001-02-02 CN CNB018230083A patent/CN1274618C/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112592508A (en) * | 2019-10-01 | 2021-04-02 | 香港科技大学 | Method for producing optical fiber |
CN112592508B (en) * | 2019-10-01 | 2022-09-20 | 香港科技大学 | Method for producing optical fiber |
CN111847864A (en) * | 2020-06-16 | 2020-10-30 | 武汉长进激光技术有限公司 | C-band expanded broadband gain erbium-doped optical fiber and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
AU2001242728B2 (en) | 2007-05-10 |
GB2388367A (en) | 2003-11-12 |
KR20040034595A (en) | 2004-04-28 |
GB2388367B (en) | 2005-05-18 |
CN1500069A (en) | 2004-05-26 |
WO2002060830A1 (en) | 2002-08-08 |
CA2436579A1 (en) | 2002-08-08 |
KR100655480B1 (en) | 2006-12-08 |
CN1274618C (en) | 2006-09-13 |
GB0318455D0 (en) | 2003-09-10 |
CA2436579C (en) | 2006-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU649845B2 (en) | Method for producing glass preform for optical fiber | |
WO2002060830A8 (en) | A process for making rare earth doped optical fibre | |
EP0565439B1 (en) | Manufacturing method for erbium-doped silica glass optical fibre preforms | |
EP0443781A1 (en) | Method for doping optical fibers | |
US5246475A (en) | Method for preparing a fused silica glass body co-doped with a rare earth element and aluminum | |
Unger et al. | Codoped materials for high power fiber lasers: diffusion behaviour and optical properties | |
US6687444B2 (en) | Decreased H2 sensitivity in optical fiber | |
US20020124601A1 (en) | Process for making rare earth doped optical fiber | |
US4410345A (en) | Method of producing optical waveguide | |
CA2210564A1 (en) | Heat treatment of silica based glasses | |
CA2481204C (en) | A method of fabricating rare earth doped optical fibre | |
CN102421715A (en) | An improved method for fabricating rare earth (re) doped optical fiber using a new codopant | |
MATĚJEC et al. | Properties of optical fiber preforms prepared by inner coating of substrate tubes | |
US7058269B2 (en) | Reconstructed glass for fiber optic applications | |
WO2002036510A2 (en) | Method of manufacturing an optical fiber preform | |
JPS56100148A (en) | Manufacture of glass fiber for optical transmission | |
WO2006083354A2 (en) | Low-water optical fiber preform and process for making it | |
WO2003057643A3 (en) | Germanium-free silicate waveguide compositions for enhanced l-band and s-band emission and method for its manufacture | |
JPH054832A (en) | Production of optical fiber preform | |
ZA200305990B (en) | A process for making rare earth doped optical fibre. | |
JP2582592C (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
ENP | Entry into the national phase |
Ref document number: 0318455 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20010202 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 00475/DELNP/2003 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2436579 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020037010252 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003/05990 Country of ref document: ZA Ref document number: 200305990 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001242728 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 018230083 Country of ref document: CN |
|
CFP | Corrected version of a pamphlet front page | ||
CR1 | Correction of entry in section i |
Free format text: IN PCT GAZETTE 32/2002 UNDER (71) DELETE "BHADRA, SHYAMAL, KUMAR ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). DASGUPTA, KAMAL ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). PAUL, MUKUL, CHANDRA ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN)."; UNDER (72, 75) ADD "BHADRA, SHYAMAL, KUMAR ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). DASGUPTA, KAMAL ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). PAUL, MUKUL, CHANDRA ¢IN/I Free format text: IN PCT GAZETTE 32/2002 UNDER (71) DELETE "BHADRA, SHYAMAL, KUMAR ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). DASGUPTA, KAMAL ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). PAUL, MUKUL, CHANDRA ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN)."; UNDER (72, 75) ADD "BHADRA, SHYAMAL, KUMAR ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). DASGUPTA, KAMAL ¢IN/IN!; CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE, 196, RAJA S.C. MULIK, CALCUTTA 700 032 (IN). PAUL, MUKUL, CHANDRA ¢IN/IN!; CENTRAL |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 1020037010252 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2001242728 Country of ref document: AU |