Inventor
FUKUMA MASUMI
JP10 patents
Patents
10 patentsUS5329600AJul 12, 1994
Reflection monitor optical fiber coupler manufacturing system and method
SUMITOMO ELECTRIC INDUSTRIES23 citations92
US5098459AMar 24, 1992
Method of manufacturing optical branching and coupling device
SUMITOMO ELECTRIC INDUSTRIES23 citations92
US5077814ADec 31, 1991
Optical transmission line for use in an optical communication system
SUMITOMO ELECTRIC INDUSTRIES28 citations92
US4802732AFeb 7, 1989
Optical fiber cable preventing water from spreading toward cable interior
SUMITOMO ELECTRIC INDUSTRIES31 citations92
US5013117AMay 7, 1991
Method for manufacturing a fiber type coupler
SUMITOMO ELECTRIC INDUSTRIES23 citations91
US5205851AApr 27, 1993
Method and apparatus for producing optical fiber coupler
SUMITOMO ELECTRIC INDUSTRIES11 citations73
US5167685ADec 1, 1992
Method for manufacturing a fiber type coupler
SUMITOMO ELECTRIC INDUSTRIES14 citations73
US5129020AJul 7, 1992
Wavelength selective optical fiber coupler
SUMITOMO ELECTRIC INDUSTRIES11 citations73
US5046804ASep 10, 1991
Method for manufacturing a fiber type coupler
SUMITOMO ELECTRIC INDUSTRIES6 citations73
US10677835B2Jun 9, 2020
Evaluation method for insulation performance of insulator
SUMITOMO ELECTRIC INDUSTRIES1 citations56