Inventor · disambiguated record
Fumiyoshi Ohkubo
Also filed as: OHKUBO FUMIYOSHI
4 granted patents·1 pending application·66 citations·filing 1997–2009
75Inventor score
Top patents by PatentIndex Score
5 records- 0167US5946439ASingle-mode optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Aug 31, 1999·36 cites·3 claims
- 0258US5913005ASingle-mode optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Jun 15, 1999·24 cites·3 claims
- 0355US7874725B2Optical fiber temperature distribution measuring apparatus, method for measuring optical fiber temperature distribution, and optical fiber temperature distribution measuring systemJ POWER SYSTEMS CORP·Filed 2007·Granted Jan 25, 2011·6 cites·24 claims
- 0445US2010111486A1Dispersion compensating moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Application pending·0 cites
- 0544US7324756B2Optical demultiplexer and optical transmission systemSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Jan 29, 2008·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →