Inventor · disambiguated record
Tetsufumi Tsuzaki
Also filed as: TSUZAKI TETSUFUMI
14 granted patents·5 pending applications·49 citations·filing 2000–2020
88Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES16SUMITOMO ELECTRIC OPTIFRONTIER CO LTD2SEI OPTIFRONTIER CO LTD1
Top patents by PatentIndex Score
19 records- 0185US10523317B2Measurement system and measurement methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Granted Dec 31, 2019·6 cites·13 claims
- 0273US6819477B2Raman amplifier module and optical transmission system using the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Nov 16, 2004·14 cites·14 claims
- 0372US6952309B1Optical amplifier and optical amplification methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Oct 4, 2005·11 cites·31 claims
- 0470US6775055B2Raman amplifierSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Aug 10, 2004·11 cites·10 claims
- 0563US9583911B2Optical amplifierSEI OPTIFRONTIER CO LTD·Filed 2016·Granted Feb 28, 2017·1 cites·9 claims
- 0655US7110648B2Analog optical transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Sep 19, 2006·1 cites·26 claims
- 0753US6806999B2Raman amplification pumping module, Raman amplifier, and optical communication systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Oct 19, 2004·3 cites·16 claims
- 0852US6813065B2Raman amplifier and optical communication systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Nov 2, 2004·2 cites·15 claims
- 0951US2008074733A1Raman amplifier and optical communication system including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Application pending·0 cites
- 1049US11965801B2Measurement systemSUMITOMO ELECTRIC OPTIFRONTIER CO LTD·Filed 2019·Granted Apr 23, 2024·0 cites·8 claims
- 1146US7046428B2Raman amplifierSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted May 16, 2006·0 cites·10 claims
- 1243US6958857B2Optical fiber component for Raman amplification, Raman amplifier and optical communications systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Oct 25, 2005·0 cites·21 claims
- 1341US12111224B2Optical transmission path inspecting system, and optical transmission path inspecting deviceSUMITOMO ELECTRIC OPTIFRONTIER CO LTD·Filed 2020·Granted Oct 8, 2024·0 cites·21 claims
- 1441US7307782B2Raman amplifier and optical communication system including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Dec 11, 2007·0 cites·54 claims
- 1540US6819829B2Optical communication systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted Nov 16, 2004·0 cites·2 claims
- 1640US2003169986A1Optical fiber, optical component, dispersion compensating fiber module, and optical communication systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Application pending·0 cites
- 1740US2004062495A1Optical fiber product and method of fabricating thereof, Raman amplifier and method of fabricating thereof, method of fabricating of optical coupler, and optical transmission lineSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Application pending·0 cites
- 1839US2004156095A1Raman amplifier and optical communication system including the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Application pending·0 cites
- 1938US2017289653A1Optical switching unit and optical switching deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →