| (84) |
Designated Contracting States: |
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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 |
| (30) |
Priority: |
28.12.2015 JP 2015256426
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| (43) |
Date of publication of application: |
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12.09.2018 Bulletin 2018/37 |
| (73) |
Proprietor: NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
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Tokyo 100-8116 (JP) |
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| (72) |
Inventors: |
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- SHOJI, Tetsufumi
Musashino-shi, Tokyo 180-8585 (JP)
- OCHIAI, Katsuyuki
Musashino-shi, Tokyo 180-8585 (JP)
- GOMI, Hiroaki
Musashino-shi, Tokyo 180-8585 (JP)
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| (74) |
Representative: MERH-IP Matias Erny Reichl Hoffmann
Patentanwälte PartG mbB |
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Paul-Heyse-Strasse 29 80336 München 80336 München (DE) |
| (56) |
References cited: :
EP-A1- 2 902 879 JP-A- 2015 225 520 JP-A- 2015 226 388
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JP-A- 2011 183 374 JP-A- 2015 225 521
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