Inventor · disambiguated record
Nobuyuki Kagi
Also filed as: KAGI NOBUYUKI
8 granted patents·1 pending application·87 citations·filing 1991–2015
84Inventor score
Files withFURUKAWA ELECTRIC CO LTD9
Top patents by PatentIndex Score
9 records- 0192US5262365AQuartz glass doped with rare earth element and production thereofFURUKAWA ELECTRIC CO LTD·Filed 1991·Granted Nov 16, 1993·61 cites·13 claims
- 0277US6636659B2Optical amplification apparatus and optical transmission systemFURUKAWA ELECTRIC CO LTD·Filed 2001·Granted Oct 21, 2003·15 cites·10 claims
- 0372US7511883B2Optical amplifying method, optical amplifying apparatus, and optical amplified transmission system using the apparatusFURUKAWA ELECTRIC CO LTD·Filed 2007·Granted Mar 31, 2009·4 cites·8 claims
- 0467US7852550B2Optical amplifying apparatusFURUKAWA ELECTRIC CO LTD·Filed 2008·Granted Dec 14, 2010·3 cites·5 claims
- 0562US9071035B2Optical amplifier and method of controlling optical amplifierFURUKAWA ELECTRIC CO LTD·Filed 2014·Granted Jun 30, 2015·1 cites·14 claims
- 0660US10126556B2Light operation deviceFURUKAWA ELECTRIC CO LTD·Filed 2015·Granted Nov 13, 2018·1 cites·11 claims
- 0747US6538803B1Optical amplifier and optical wavelength division multiplexing communication systemFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Mar 25, 2003·2 cites·5 claims
- 0843US2014072302A1Optical switchFURUKAWA ELECTRIC CO LTD·Filed 2013·Application pending·0 cites
- 0942US7333262B2Optical amplifying method, optical amplifying apparatus, and optical amplified transmission system using the apparatusFURUKAWA ELECTRIC CO LTD·Filed 2004·Granted Feb 19, 2008·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →