Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671444 | Optical fiber | Shinichi Arai, Takeshi Yagi, Kunihiko Mori, Satoki Kawanishi | 2003-12-30 |
| 6587242 | Optical transmission system | Ippei Shake, Yoshiaki Yamabayashi, Osamu Kamatani, Koji Nonaka, Kentaro Uchiyama | 2003-07-01 |