Inventor
SUDA SACHIO
JP5 patents
Patents
5 patentsUS12316383B2May 27, 2025
Wavelength cross connect device, multiband transmission system, and multiband transmission method
NIPPON TELEGRAPH & TELEPHONE2 citations72
US12244346B2Mar 4, 2025
Wavelength cross connect device and wavelength cross connect method
NIPPON TELEGRAPH & TELEPHONE3 citations72
US11979226B2May 7, 2024
Wavelength cross connect device and wavelength cross connect method
NIPPON TELEGRAPH & TELEPHONE2 citations70
US12207030B2Jan 21, 2025
Optical node device, optical transport network system, optical path trace method and program
NIPPON TELEGRAPH & TELEPHONE0 citations60
US11824583B2Nov 21, 2023
Cyclic wavelength band replacement device, multi-band transmission system, and cyclic wavelength band replacement method
NIPPON TELEGRAPH & TELEPHONE0 citations49