Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668652 | Optical WDM (wavelength division multiplexing) transmission system and method for configuring the same | Masashi Hashomoto, Norio Tamaki, Ryu Watanabe | 1997-09-16 |
| 5646758 | Optical time compression multiplexing transmission system | Noriki Miki | 1997-07-08 |
| 5608565 | Bidirectional optical transmission system | Yasuhiro Suzuki, Ryuichi Watanabe | 1997-03-04 |