HU

Hirotaka UJIKAWA

NT NTT: 9 patents #43 of 1,302Top 4%
Overall (2024): #11,690 of 561,600Top 3%
9
Patents 2024

Issued Patents 2024

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12155417 Optical transmission device, optical communication system, and optical communication method Naotaka SHIBATA 2024-11-26
12155413 Communication device, communication method, communication system and communication program Takamitsu TOCHINO, Hirotaka Nakamura 2024-11-26
12063289 Communication system, subscriber line terminal apparatus and communication method Takahiro Suzuki, Noriyuki Ota, Hiroyuki Uzawa 2024-08-13
12040831 Optical communication system and master station Rintaro Harada, Shin KANEKO 2024-07-16
12009844 Optical communication system, master station, and optical communication method Rintaro Harada, Shin KANEKO, Jun Terada 2024-06-11
11973531 Optical communication system and master station Rintaro Harada, Shin KANEKO, Jun Terada 2024-04-30
11924740 Signal transfer system, signal transfer device, route control device and signal transfer method Naotaka SHIBATA, Hiroyuki Uzawa, Yoichi FUKADA, Jun Terada 2024-03-05
11909651 Communication system, communication apparatus and bandwidth allocation method Yumiko SENOO, Takahiro Suzuki, Junichi KANI 2024-02-20
11888581 Wavelength multiplexing communication system and wavelength multiplexing communication method Rintaro Harada, Shin KANEKO, Jun Terada 2024-01-30