Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643468 | Optical communication system, optical transmitting apparatus, optical receiving apparatus, optical communication method, and storage medium | — | 2003-11-04 |
| 6522487 | Optical apparatus | Akihiko Memezawa, Kei Sato, Kazuyoshi Horie | 2003-02-18 |