Inventor · disambiguated record

Masaki Kohtoku

Also filed as: KOHTOKU MASAKI

2 granted patents·20 citations·filing 2009–2016

58Inventor score

Technology areasG02B G02F

Files withNIPPON TELEGRAPH & TELEPHONE2

Top patents by PatentIndex Score

2 records

0186US10254624B2Semiconductor optical modulation elementNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Apr 9, 2019·5 cites·6 claims
0284US8369666B2Optical wavelength multiplexing/ de-multiplexing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2009·Granted Feb 5, 2013·15 cites·16 claims

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