KO

Keiji Okamoto

NT NTT: 4 patents #78 of 956Top 9%
Overall (2023): #44,530 of 537,848Top 9%
4
Patents 2023

Issued Patents 2023

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11828676 Optical pulse reflectometry and optical pulse reflectometer Atsushi Nakamura, Hiroyuki OSHIDA 2023-11-28
11802809 Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method Atsushi Nakamura, Hiroyuki OSHIDA 2023-10-31
11754465 Optical pulse testing device and optical pulse testing method Atsushi Nakamura, Nazuki HONDA, Daisuke IIDA, Hiroyuki OSHIDA 2023-09-12
11598692 Optical pulse testing method and optical pulse testing device Atsushi Nakamura, Hiroyuki OSHIDA 2023-03-07