blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
FAQ - Register Alert
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP3454100

EP3454100 - OPTICAL FIBER DESIGN METHOD [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.04.2021
Database last updated on 03.08.2024
FormerThe patent has been granted
Status updated on  15.05.2020
FormerGrant of patent is intended
Status updated on  15.01.2020
FormerRequest for examination was made
Status updated on  20.09.2019
FormerThe application has been published
Status updated on  08.02.2019
Most recent event   Tooltip14.06.2024Lapse of the patent in a contracting state
New state(s): TR		published on 17.07.2024  [2024/29]
Applicant(s)For all designated states
Nippon Telegraph and Telephone Corporation
5-1, Otemachi 1-chome
Chiyoda-ku
Tokyo 100-8116 / JP
[2019/11]
Inventor(s)01 / MATSUI, Takashi
NTT Intellectual Property Center
9-11, Midori-cho 3-chome
Musashino-shi, Tokyo 180-8585 / JP
02 / TSUJIKAWA, Kyozo
NTT Intellectual Property Center
9-11, Midori-cho 3-chome
Musashino-shi, Tokyo 180-8585 / JP
03 / YAMAMOTO, Fumihiko
NTT Intellectual Property Center
9-11, Midori-cho 3-chome
Musashino-shi, Tokyo 180-8585 / JP
04 / HANZAWA, Nobutomo
NTT Intellectual Property Center
9-11, Midori-cho 3-chome
Musashino-shi, Tokyo 180-8585 / JP
 [2020/07]
Former [2019/11]01 / Matsui, Takashi
c/o NTT Intellectual Property Center
9-11, Midori-cho 3-chome, Musashino-shi
Tokyo, 180-8585 / JP
02 / Tsujikawa, Kyozo
c/o NTT Intellectual Property Center
9-11, Midori-cho 3-chome, Musashino-shi
Tokyo, 180-8585 / JP
03 / Yamamoto, Fumihiko
c/o NTT Intellectual Property Center
9-11, Midori-cho 3-chome, Musashino-shi
Tokyo, 180-8585 / JP
04 / Hanzawa, Nobutomo
c/o NTT Intellectual Property Center
9-11, Midori-cho 3-chome, Musashino-shi
Tokyo, 180-8585 / JP
Representative(s)Michalski Hüttermann & Partner Patentanwälte mbB
Kaistraße 16A
40221 Düsseldorf / DE
[N/P]
Former [2019/11]Michalski Hüttermann & Partner Patentanwälte mbB
Speditionstraße 21
40221 Düsseldorf / DE
Application number, filing date18189688.718.03.2016
[2019/11]
Priority number, dateJP2015008251114.04.2015         Original published format: JP 2015082511
JP2015018525218.09.2015         Original published format: JP 2015185252
[2019/11]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3454100
Date:13.03.2019
Language:EN
[2019/11]
Type: B1 Patent specification 
No.:EP3454100
Date:17.06.2020
Language:EN
[2020/25]
Search report(s)(Supplementary) European search report - dispatched on:EP07.01.2019
ClassificationIPC:G02B6/02, G02B6/032, G02B6/028
[2019/11]
CPC:
G02B6/0288 (EP,US); G02B6/02009 (US); G02B6/02314 (EP,US);
G02B6/02333 (EP,US); G02B6/02357 (US); G02B6/02361 (US);
G02B6/02366 (US); G02B6/02371 (US); G02B6/0283 (US);
G02B6/02347 (EP,US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2019/43]
Former [2019/11]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:GLASFASERENTWURFSVERFAHREN[2019/11]
English:OPTICAL FIBER DESIGN METHOD[2019/11]
French:PROCÉDÉ DE CONCEPTION DE FIBRE OPTIQUE[2019/11]
Examination procedure12.09.2019Amendment by applicant (claims and/or description)
12.09.2019Examination requested  [2019/43]
12.09.2019Date on which the examining division has become responsible
16.01.2020Communication of intention to grant the patent
07.05.2020Fee for grant paid
07.05.2020Fee for publishing/printing paid
07.05.2020Receipt of the translation of the claim(s)
Parent application(s)   TooltipEP16779871.9  / EP3285100
Opposition(s)18.03.2021No opposition filed within time limit [2021/21]
Fees paidRenewal fee
20.08.2018Renewal fee patent year 03
28.03.2019Renewal fee patent year 04
18.03.2020Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipHU18.03.2016
AL17.06.2020
AT17.06.2020
CY17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
MC17.06.2020
MK17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
TR17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
[2024/29]
Former [2024/23]HU18.03.2016
AL17.06.2020
AT17.06.2020
CY17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
MC17.06.2020
MK17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2023/33]HU18.03.2016
AL17.06.2020
AT17.06.2020
CY17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
MC17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2023/30]AL17.06.2020
AT17.06.2020
CY17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
MC17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2021/45]AL17.06.2020
AT17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
MC17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2021/24]AL17.06.2020
AT17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SI17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2021/21]AL17.06.2020
AT17.06.2020
CZ17.06.2020
DK17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2021/10]AL17.06.2020
AT17.06.2020
CZ17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
NL17.06.2020
PL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SK17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
IS17.10.2020
PT19.10.2020
Former [2021/09]AL17.06.2020
AT17.06.2020
CZ17.06.2020
EE17.06.2020
ES17.06.2020
FI17.06.2020
HR17.06.2020
IT17.06.2020
LT17.06.2020
LV17.06.2020
NL17.06.2020
RO17.06.2020
RS17.06.2020
SE17.06.2020
SM17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
PT19.10.2020
Former [2021/04]AL17.06.2020
FI17.06.2020
HR17.06.2020
LT17.06.2020
LV17.06.2020
NL17.06.2020
RS17.06.2020
SE17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
Former [2021/01]FI17.06.2020
HR17.06.2020
LT17.06.2020
LV17.06.2020
RS17.06.2020
SE17.06.2020
BG17.09.2020
NO17.09.2020
GR18.09.2020
Former [2020/51]FI17.06.2020
HR17.06.2020
LT17.06.2020
LV17.06.2020
RS17.06.2020
SE17.06.2020
NO17.09.2020
GR18.09.2020
Former [2020/50]FI17.06.2020
HR17.06.2020
LT17.06.2020
LV17.06.2020
SE17.06.2020
NO17.09.2020
GR18.09.2020
Former [2020/48]FI17.06.2020
LT17.06.2020
SE17.06.2020
NO17.09.2020
Former [2020/47]LT17.06.2020
NO17.09.2020
Documents cited:Search[A]US2010157418  (DONG LIANG [US], et al) [A] 1 * paragraphs [0132] , [ 0193] - [0206] *;
 [A]EP2765443  (FURUKAWA ELECTRIC CO LTD [JP]) [A] 1 * paragraphs [0031] - [0048] - [ 0099] *;
 [A]  - MAFI A ET AL, "Beam Quality of Photonic-Crystal Fibers", JOURNAL OF LIGHTWAVE TECHNOLOGY, IEEE SERVICE CENTER, NEW YORK, NY, US, (20050701), vol. 23, no. 7, doi:10.1109/JLT.2005.850028, ISSN 0733-8724, pages 2267 - 2270, XP011135918 [A] 1 * the whole document *

DOI:   http://dx.doi.org/10.1109/JLT.2005.850028
 [A]  - DIANOV E M ET AL, "Solid-Core Photonic Bandgap Fibers for High-Power Fiber Lasers", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, (20090101), vol. 15, no. 1, doi:10.1109/JSTQE.2008.2010247, ISSN 1077-260X, pages 20 - 29, XP011280682 [A] 1 * the whole document *

DOI:   http://dx.doi.org/10.1109/JSTQE.2008.2010247
by applicantUS2010157418
    - W. S. WONG et al., "Breaking the limit of maximum effective area for robust single-mode propagation in optical fibers", Opt. Lett., (20050000), vol. 30, no. 21, doi:doi:10.1364/OL.30.002855, pages 2855 - 2857, XP001235432

DOI:   http://dx.doi.org/10.1364/OL.30.002855
    - M. NAPEIRALA et al., "Extremely large-mode-area photonic crystal fibre with low bending loss", Opt. Express, (20100000), vol. 18, no. 15, pages 15408 - 15418
    - M. KASHIWAGI et al., "Effectively single-mode all-solid photonic bandgap fiber with large effective area and low bending loss for compact high-power all-fiber lasers", Opt. Express, (20120000), vol. 20, no. 14, pages 15061 - 15070
    - H. YODA et al., "Beam quality factor of higher order modes in a step-index fiber", J. Lightwave Technol., (20060000), vol. 24, no. 3, doi:doi:10.1109/JLT.2005.863337, pages 1350 - 1355, XP055321552

DOI:   http://dx.doi.org/10.1109/JLT.2005.863337
    - G. P. AGRAWAL, Nonlinear Fiber Optics, ACADEMIC PRESS
    - F. A. OGUAMA et al., "Simultaneous measurement of the Raman gain coefficient and the nonlinear refractive index of optical fibers: theory and experiment", J. Opt. Soc. Am. B, (20050000), vol. 22, no. 2, pages 426 - 436
    - KUNIMASA SAITOH; MASANORI KOSHIBA, "Full-vectorial finite element beam propagation method with perfectly matched layers for anisotropic optical waveguides", IEEE J. Lightwave technol., (20010000), vol. 19, no. 3, pages 405 - 413, XP011029919
    - KUNIMASA SAITOH; MASANORI KOSHIBA, "Emprical relations for simple design of photonic crystal fibers", Optical Society of America, Optics Express, (20050110), vol. 13, no. 1, pages 267 - 274
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.