Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6785225 | Communication apparatus and communication system | Noboru Endo, Kenichi Sakamoto | 2004-08-31 |
| 6775434 | Variable optical dispersion compensator | — | 2004-08-10 |
| 6697386 | Multiplex transmission apparatuses, multiplex transmission networks, and operation method therefor | Masaki Ohira, Yukio Nakano, Takashi Mori | 2004-02-24 |