Inventor · disambiguated record
Hiroki Oi
Also filed as: OI HIROKI
8 granted patents·2 pending applications·16 citations·filing 2013–2024
79Inventor score
Files withFUJITSU LTD10
Top patents by PatentIndex Score
10 records- 0185US10541749B2Optical wavelength multiplexing transmission apparatus and optical wavelength multiplexing transmission methodFUJITSU LTD·Filed 2019·Granted Jan 21, 2020·5 cites·10 claims
- 0285US9432113B2Optical transmission deviceFUJITSU LTD·Filed 2014·Granted Aug 30, 2016·8 cites·5 claims
- 0374US9906296B2Network controller and signal quality estimating methodFUJITSU LTD·Filed 2016·Granted Feb 27, 2018·2 cites·10 claims
- 0459US9444572B2Transmission device and transmission methodFUJITSU LTD·Filed 2013·Granted Sep 13, 2016·1 cites·9 claims
- 0557US11876559B2Optical transmission system and fiber type determination methodFUJITSU LTD·Filed 2022·Granted Jan 16, 2024·0 cites·11 claims
- 0654US2025211356A1Optical transmission device and optical transmission systemFUJITSU LTD·Filed 2024·Application pending·0 cites
- 0752US10256903B2Network controller and signal quality estimating methodFUJITSU LTD·Filed 2017·Granted Apr 9, 2019·0 cites·5 claims
- 0850US2024129034A1Forward raman amplifier, bidirectional raman amplification system, and forward raman amplification systemFUJITSU LTD·Filed 2023·Application pending·0 cites
- 0947US9071379B2Optical branching and insertion device, network management device, and wavelength selective switchFUJITSU LTD·Filed 2013·Granted Jun 30, 2015·0 cites·12 claims
- 1041US10020878B2Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratioFUJITSU LTD·Filed 2015·Granted Jul 10, 2018·0 cites·9 claims
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