Inventor
HARUNA TETSUYA
JP35 patents
⚠️ This page may combine multiple inventors who share the name “HARUNA TETSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
29 patentsUS9512033B2Dec 6, 2016
Optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES10 citations84
US9335465B2May 10, 2016
Optical fiber and optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES5 citations84
US9036972B2May 19, 2015
Optical fiber preform, method for producing optical fiber, and optical fiber
SUMITOMO ELECTRIC INDUSTRIES8 citations84
US10031285B2Jul 24, 2018
Multicore optical fiber
SUMITOMO ELECTRIC INDUSTRIES6 citations73
US9932265B2Apr 3, 2018
Method of making an optical fiber containing an alkali metal in the core
SUMITOMO ELECTRIC INDUSTRIES2 citations73
US9575245B2Feb 21, 2017
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES4 citations73
US9527765B2Dec 27, 2016
Optical fiber manufacturing method and optical fiber
SUMITOMO ELECTRIC INDUSTRIES4 citations73
US9322990B2Apr 26, 2016
Optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES3 citations73
US9588286B2Mar 7, 2017
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES4 citations69
US9411095B2Aug 9, 2016
Optical-fiber preform and method for manufacturing optical-fiber preform
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US9340444B2May 17, 2016
Optical fiber preform manufacturing method, optical fiber preform, and optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7940815B2May 10, 2011
Fluorescent glass, optical waveguide, optical fiber, optical coherence tomography apparatus, and optical fiber laser
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7286740B2Oct 23, 2007
Optical fiber, optical transmission line, optical module and optical transmission system
SUMITOMO ELECTRIC INDUSTRIES2 citations61
US7822307B1Oct 26, 2010
Optical fiber ribbon for wiring of equipment and connector-attached optical fiber ribbon for wiring of equipment
SUMITOMO ELECTRIC INDUSTRIES2 citations60
US7016582B2Mar 21, 2006
Polarized wave holding optical fiber, and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES5 citations60
US7130513B2Oct 31, 2006
Glass-body-producing method and optical glass body and optical fiber
SUMITOMO ELECTRIC INDUSTRIES2 citations59
US11667559B2Jun 6, 2023
Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US11345627B2May 31, 2022
Method of manufacturing optical fiber preform and optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US10155687B2Dec 18, 2018
Optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES1 citations52
US9817184B2Nov 14, 2017
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations52
US9229160B2Jan 5, 2016
Optical fiber preform, method for producing optical fiber, and optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations52
US8381549B2Feb 26, 2013
Optical fiber preform fabricating method
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US8023181B2Sep 20, 2011
Optical fiber for amplification and optical fiber amplifier
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US7436583B2Oct 14, 2008
Optical amplification fiber, optical amplifier module, optical communication system and optical amplifying method
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US8909016B2Dec 9, 2014
Optical fiber and method of manufacturing optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US7894697B2Feb 22, 2011
Optical fiber, optical transmission line, optical module, and optical transmission system
SUMITOMO ELECTRIC INDUSTRIES1 citations51
US9910216B2Mar 6, 2018
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES1 citations46
US9199877B2Dec 1, 2015
Method for manufacturing optical fiber base material, and optical fiber
SUMITOMO ELECTRIC INDUSTRIES0 citations42
US7586673B2Sep 8, 2009
Optical gain waveguide and method of controlling the same
SUMITOMO ELECTRIC INDUSTRIES0 citations42