Inventor
KATAOKA TOSHIO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “KATAOKA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO OSAKA CEMENT CO LTD
24 patentsUS10348007B2Jul 9, 2019
Optical control element module
SUMITOMO OSAKA CEMENT CO LTD17 citations85
US10088734B2Oct 2, 2018
Waveguide-type optical element
SUMITOMO OSAKA CEMENT CO LTD10 citations84
US10091881B1Oct 2, 2018
Connection structure between optical device and circuit substrate, and optical transmission apparatus using the same
SUMITOMO OSAKA CEMENT CO LTD4 citations72
US9778539B2Oct 3, 2017
Optical modulation device
SUMITOMO OSAKA CEMENT CO LTD4 citations72
US9519200B2Dec 13, 2016
Optical control device
SUMITOMO OSAKA CEMENT CO LTD6 citations72
US11109480B2Aug 31, 2021
Flexible printed circuit and optical device
SUMITOMO OSAKA CEMENT CO LTD1 citations62
US10481464B2Nov 19, 2019
Optical modulator with wirings of equal length
SUMITOMO OSAKA CEMENT CO LTD1 citations62
US9523872B2Dec 20, 2016
Optical device
SUMITOMO OSAKA CEMENT CO LTD2 citations62
US12591152B2Mar 31, 2026
Optical modulator and optical transmission device using same
SUMITOMO OSAKA CEMENT CO LTD0 citations52
US11493788B2Nov 8, 2022
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations52
US10502982B2Dec 10, 2019
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations52
US10365506B2Jul 30, 2019
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations52
US9551887B2Jan 24, 2017
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD1 citations52
US12153295B2Nov 26, 2024
Optical waveguide element, and optical modulation device and optical transmission device using the same
SUMITOMO OSAKA CEMENT CO LTD0 citations51
US10162201B2Dec 25, 2018
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD1 citations51
US10126505B2Nov 13, 2018
Optical element module
SUMITOMO OSAKA CEMENT CO LTD0 citations51
US12474619B2Nov 18, 2025
Optical modulator and optical transmission device using same
SUMITOMO OSAKA CEMENT CO LTD0 citations50
US10890788B2Jan 12, 2021
Optical waveguide device module
SUMITOMO OSAKA CEMENT CO LTD0 citations50
US10466513B2Nov 5, 2019
Optical waveguide device
SUMITOMO OSAKA CEMENT CO LTD0 citations41
US10401658B2Sep 3, 2019
Optical modulator and optical switch
SUMITOMO OSAKA CEMENT CO LTD0 citations41
US10067403B2Sep 4, 2018
Optical modulator and optical switch
SUMITOMO OSAKA CEMENT CO LTD0 citations41
US10001602B2Jun 19, 2018
Polarization-combining module
SUMITOMO OSAKA CEMENT CO LTD0 citations41
US10514561B2Dec 24, 2019
Optical modulator
SUMITOMO OSAKA CEMENT CO LTD0 citations40
US9800349B2Oct 24, 2017
Optical 90-degree hybrid circuit and optical receiver using same
SUMITOMO OSAKA CEMENT CO LTD0 citations30