Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4484144 | Semiconductor light amplifier | Yukio Nakagome, Takaya Yamamoto | 1984-11-20 |
| 4422718 | Submarine optical fiber cable | Yukio Nakagome, Taiichiro Nakai, Yasuhiko Niiro, Yoshihiro Ejiri, Hitoshi Yamamoto +1 more | 1983-12-27 |
| 4349243 | Optical fiber submarine cable | Taiichiro Nakai, Masanori Sato, Makoto Nunokawa | 1982-09-14 |