Inventor

EDAGAWA NOBORU

JP59 patents

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

EDAGAWA NOBORU

KOKUSAI DENSHIN DENWA CO LTD

Optical transmission device, WDM optical transmission apparatus, and optical transmission system using return-to-zero optical pulses

Optical communication system and optical transmitting device

Soliton optical communication system and optical transmitter and optical receiver therefor

Wavelength division multiplexed optical fiber transmission equipment

Wavelength division multiplexed optical fiber transmission equiptment

Wavelength-division multiplexing optical transmission system

Wavelength converter, optically operational device and optical pulse phase detecting circuit

Optical transmitting terminal

Optical communication system

Optical transmitter with the signal light of reduced degree of polarization and optical depolarizing circuit

Optical waveform shaping device for peforming waveform equalization and timing synchronization

Apparatus for monitoring the operation of an optical repeater

Gain equalizing apparatus

Optical pulse generator

Optical modulator, optical short pulse generating device, optical waveform shaping device, and optical demultiplexer device

Gain-controllable optical amplifier and optical gain-control method

Optical transmission system

Optical amplifying-repeating transmission system

Optical amplifying transmitting system

Multi-point optical amplification repeating system

Optical amplification

Fault monitoring system for optical fiber communication systems

Optical submarine branching device

Optical transmission system and optical repeater

Optically amplifying transmission system

Optical receiver device for dark soliton lightwave

Multi-wavelength light source and discrete-wavelength-variable light source

Multi-wavelength light source and discrete-wavelength-variable light source

Multi-wavelength light source and discrete-wavelength-variable light source

Optically amplifying/repeating transmission system and optical amplifier

Optical frequency shifter and optical soliton-like return-to-zero pulse transmission system using optical frequency shifter

Optical communication system using dark soliton lightwave

Optical amplifier with erbium-doped fiber

Long-distance high-speed optical communication scheme

KDD CORP

Optical digital regenerator

Optical transmitting apparatus

Optical amplifying transmission system and optical amplifier

Dispersion compensating optical transmission line and system

Optical amplifying transmission system and optical amplifying repeater

Optical amplifying transmission system and optical amplifier

Optical transmission system, optical transmission line and optical transmitter

DDI CORP

Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM converter and TDM/WDM converter

Optical waveform shaper

Optical transmission line

MITSUBISHI ELECTRIC CORP

Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods

Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods

KDDI SUBMARINE CABLE SYS INC

Optical fiber transmission line

SHINETSU CHEMICAL CO

Method for preparing a fused silica glass body co-doped with a rare earth element and aluminum

KOKUSAI BENSHIN KABUSHIKI KAIS

Er-doped optical fiber laser device

KDDI CORP

Method for dynamically establishing logical link in PON systems and an optical network unit for the method