Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642215 | Optical transmission system | Masatoshi Suzuki, Noboru Edagawa, Hidenori Taga, Shu Yamamoto, Shigeyuki Akiba | 1997-06-24 |
| 5629795 | Optical amplifying-repeating transmission system | Masatoshi Suzuki, Shu Yamamoto, Noboru Edagawa, Hidenori Taga, Shigeyuki Akiba | 1997-05-13 |