Inventor · disambiguated record
Koki Shibahara
Also filed as: SHIBAHARA KOKI
11 granted patents·4 pending applications·8 citations·filing 2016–2022
80Inventor score
Top patents by PatentIndex Score
15 records- 0185US11349564B2Crosstalk estimation systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 31, 2022·4 cites·6 claims
- 0282US11770205B2Optical signal processing apparatus, optical signal processing method and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 26, 2023·3 cites·8 claims
- 0361US10422719B2Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating methodNTT ELECTRONICS CORP·Filed 2016·Granted Sep 24, 2019·1 cites·8 claims
- 0456US11888281B2Multimode optical amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 30, 2024·0 cites·10 claims
- 0552US11888522B2Optical transmission system and optical transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 30, 2024·0 cites·14 claims
- 0650US11438071B2Optical repeaterNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 6, 2022·0 cites·5 claims
- 0750US11101914B2Optical transmission system and optical transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 24, 2021·0 cites·6 claims
- 0847US12176952B2Signal detection apparatus, signal detection method and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Dec 24, 2024·0 cites·6 claims
- 0946US12395248B2Signal detector, carrier phase retrieval apparatus, carrier phase retrieval method and carrier phase retrieval programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Aug 19, 2025·0 cites·6 claims
- 1045US2022317349A1Mode Equalization FilterNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 1145US2021263214A1Mode Equalization FilterNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 1245US2025219733A1Optical transmission system, optical transmission method, and relay amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1343US11888584B2Optical transmission system, optical transmission apparatus and optical transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 30, 2024·0 cites·7 claims
- 1443US2024388376A1Signal detection device, signal detection method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1542US12034269B2Light amplifying relay systemNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 9, 2024·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →