Inventor
NAGASHIMA TAKUJI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “NAGASHIMA TAKUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
13 patentsUS10520668B2Dec 31, 2019
Method for producing multicore optical fiber and multicore optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations72
US11130702B2Sep 28, 2021
Optical fiber manufacturing method
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US10590024B2Mar 17, 2020
Production method for multicore optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations62
US11820695B2Nov 21, 2023
Manufacturing method for preform of multi-core fiber and manufacturing method for multi-core fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US11314015B2Apr 26, 2022
Multi-core optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US11059737B2Jul 13, 2021
Method for manufacturing multicore optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US10775541B2Sep 15, 2020
Optical-fiber output beam profile measurement method and optical-fiber output beam profile measurement apparatus
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US10662106B2May 26, 2020
Production method for multicore optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US9453979B2Sep 27, 2016
Multi-core optical fiber tape
SUMITOMO ELECTRIC INDUSTRIES1 citations51
US9128233B2Sep 8, 2015
Multi-core fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations51
US8655132B2Feb 18, 2014
Multi-core optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US10830966B2Nov 10, 2020
Optical connector manufacturing method
SUMITOMO ELECTRIC INDUSTRIES0 citations50
US9891376B2Feb 13, 2018
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations41