Optics & Imaging
| Wed 30 Sep 2026
Geneva, Sept. 29 -- NTT has applied WIPO patent for Optical Amplifier and Optical Communication System. Iwaya Tarou, Kiuchi Asa, Imada Ryota, Sakamoto Taiji, Hanzawa Nobutomo, Nakajima Kazuhide, Kamimura Kiyoshi, Wada Masaki, Mori Takayoshi, Oomoto Kouhei and Yamashita Yoko developed it.
The patent application number is WO202..