Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496552 | Timing circuit | Hiroshi Hamano | 2002-12-17 |
| 6483636 | Optical amplifier | Yasushi Sugaya, Rikiya Watanabe | 2002-11-19 |
| 6411429 | Optical amplifying apparatus, wide-band optical amplifying apparatus, and optical communication system | Motoyoshi Sekiya, Takeshi Sakamoto, Makoto Murakami, Chihiro Ohshima, Yoshihito Onoda | 2002-06-25 |
| 6348987 | Multiplex optical communication system | — | 2002-02-19 |