Inventor · disambiguated record
Fumihiro Nakajima
Also filed as: NAKAJIMA FUMIHIRO
12 granted patents·3 pending applications·78 citations·filing 1987–2021
87Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES10PIONEER ELECTRONIC CORP2FUJIMURA YASUSHI1SANYO CHEMICAL IND LTD1SEDI INC1
Top patents by PatentIndex Score
15 records- 0190US9363021B2Receiver optical module including optical de-multiplexer, lenses, and photodiodes vertically arranged to each other within housingSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Jun 7, 2016·11 cites·18 claims
- 0289US9197345B2Receiver optical module for receiving wavelength multiplexed optical signals and method to assemble the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted Nov 24, 2015·11 cites·15 claims
- 0387US4761692AMethod and apparatus for data recording disc playbackPIONEER ELECTRONIC CORP·Filed 1987·Granted Aug 2, 1988·43 cites·14 claims
- 0475US10128974B2Optical receiver module and process to assemble optical receiver moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Nov 13, 2018·3 cites·9 claims
- 0564US10281653B2Optical receiver module and process to assemble optical receiver moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted May 7, 2019·1 cites·11 claims
- 0662US10826622B2Wavelength de-multiplexing system and optical receiver moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Nov 3, 2020·0 cites·11 claims
- 0758US10707970B2Wavelength de-multiplexing system and optical receiver moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Jul 7, 2020·0 cites·4 claims
- 0858US8475058B2Optical module with ceramic package reducing optical coupling stressFUJIMURA YASUSHI·Filed 2010·Granted Jul 2, 2013·1 cites·8 claims
- 0951US12429657B2Optical device and manufacturing method for optical deviceSEDI INC·Filed 2021·Granted Sep 30, 2025·0 cites·5 claims
- 1047US9614636B2Receiver optical module for wavelength multiplexed signalSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Apr 4, 2017·0 cites·7 claims
- 1147US2024154386A1Optical transmitterSUMITOMO ELECTRIC INDUSTRIES·Filed 2021·Application pending·0 cites
- 1242US5195075AOutput level controlling apparatusPIONEER ELECTRONIC CORP·Filed 1991·Granted Mar 16, 1993·8 cites·12 claims
- 1336US2007269987A1Polishing Liquid for Cmp Process and Polishing MethodSANYO CHEMICAL IND LTD·Filed 2004·Application pending·0 cites
- 1436US2015365176A1Process to assemble optical receiver moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Application pending·0 cites
- 1532US9768872B2Optical transceiver outputting wavelength multiplexed signal and receiving another wavelength multiplexed signalSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Sep 19, 2017·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →