Inventor

KOSHIKIYA YUSUKE

JP18 patents

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

KOSHIKIYA YUSUKE

NIPPON TELEGRAPH & TELEPHONE

Optical pulse testing device and optical pulse testing method

Optical fiber monitoring method, and optical fiber monitoring system

Devices and methods for measuring the amount of frequency modulation

Technique for analyzing a spectrum of backscattered light in an optical fiber

Brillouin gain spectrum distribution measurement method and equipment

Mode field diameter measuring method and mode field diameter measuring device

Optical fiber measurement system, optical fiber measurement method, control arithmetic device, and program

Optical frequency multiplexing coherent OTDR, testing method, signal processing device, and program

NTT INC

Positioning method of electric pole and estimating method of the state of overhead optical fiber cable

Optical transmission line test equipment and test method

Connection loss difference measurement method, equipment and program

Overhead optical cable test system and method

Coherent optical measuring device for facility line test

Optical fiber strain measuring method and optical fiber strain measuring device

Equipment and method for measuring loss and crosstalk that occur in optical fiber transmission line

Optical fiber test method and optical fiber test equipment

FAN XINYU

Optical reflectometry and optical reflectometer

TAKAHASHI HIROSHI

Optical fiber line characteristic analysis apparatus and analysis method thereof