Inventor · disambiguated record
Masumi Fukuma
Also filed as: FUKUMA MASUMI
10 granted patents·171 citations·filing 1987–2017
90Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES10
Top patents by PatentIndex Score
10 records- 0172US4802732AOptical fiber cable preventing water from spreading toward cable interiorSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Feb 7, 1989·31 cites·9 claims
- 0270US5077814AOptical transmission line for use in an optical communication systemSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Dec 31, 1991·28 cites·10 claims
- 0364US10677835B2Evaluation method for insulation performance of insulatorSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Jun 9, 2020·1 cites·13 claims
- 0464US5098459AMethod of manufacturing optical branching and coupling deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Mar 24, 1992·23 cites·7 claims
- 0564US5013117AMethod for manufacturing a fiber type couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted May 7, 1991·23 cites·12 claims
- 0662US5329600AReflection monitor optical fiber coupler manufacturing system and methodSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jul 12, 1994·23 cites·106 claims
- 0751US5205851AMethod and apparatus for producing optical fiber couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Apr 27, 1993·11 cites·18 claims
- 0849US5167685AMethod for manufacturing a fiber type couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Dec 1, 1992·14 cites·14 claims
- 0944US5129020AWavelength selective optical fiber couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Jul 7, 1992·11 cites·10 claims
- 1037US5046804AMethod for manufacturing a fiber type couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Sep 10, 1991·6 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →