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Inventor

MORIWAKI OSAMU

JP19 patents
⚠️ This page may combine multiple inventors who share the name “MORIWAKI OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON TELEGRAPH & TELEPHONE

17 patents
US7298974B2Nov 20, 2007

Optical communication network system

NIPPON TELEGRAPH & TELEPHONE49 citations92
US7522837B2Apr 21, 2009

Optical communication system

NIPPON TELEGRAPH & TELEPHONE17 citations83
US11979694B2May 7, 2024

Optical and electronic integrated switch

NIPPON TELEGRAPH & TELEPHONE2 citations72
US11930309B2Mar 12, 2024

Optical and electronic integrated switch

NIPPON TELEGRAPH & TELEPHONE2 citations72
US11881897B2Jan 23, 2024

Optical and electronic integrated switch and optical network system

NIPPON TELEGRAPH & TELEPHONE2 citations72
US11656405B2May 23, 2023

Optical multi/demultiplexing circuit

NIPPON TELEGRAPH & TELEPHONE1 citations62
US7317875B2Jan 8, 2008

Optical communication network system, wavelength routing apparatus, communication node, optical path managing method for use in optical cross connect apparatus, and apparatus for that method

NIPPON TELEGRAPH & TELEPHONE6 citations62
US11835761B2Dec 5, 2023

Planar optical waveguide circuit

NIPPON TELEGRAPH & TELEPHONE0 citations61
US12107626B2Oct 1, 2024

Wavelength monitoring device and controlling method thereof

NIPPON TELEGRAPH & TELEPHONE0 citations51
US12107762B2Oct 1, 2024

Optical and electronic integrated switch

NIPPON TELEGRAPH & TELEPHONE0 citations51
US12032231B2Jul 9, 2024

Optical signal processing apparatus and manufacturing method thereof

NIPPON TELEGRAPH & TELEPHONE0 citations51
US12022246B2Jun 25, 2024

Optical signal processing apparatus

NIPPON TELEGRAPH & TELEPHONE0 citations51
US12007665B2Jun 11, 2024

Optical signal processing apparatus

NIPPON TELEGRAPH & TELEPHONE0 citations51
US11405702B2Aug 2, 2022

Optical signal processing device and method for controlling same

NIPPON TELEGRAPH & TELEPHONE0 citations51
US11112561B2Sep 7, 2021

Variable wavelength filter

NIPPON TELEGRAPH & TELEPHONE0 citations51
US11973535B2Apr 30, 2024

Wavelength monitoring circuit

NIPPON TELEGRAPH & TELEPHONE0 citations50
US10254625B2Apr 9, 2019

Optical signal processing device

NIPPON TELEGRAPH & TELEPHONE0 citations40

FUJITSU SEMICONDUCTOR LTD

1 patent

SATO KEN-ICHI

1 patent