Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583900 | Optical transmission apparatus, optical transmission system, and optical terminal station | Hiroshi Onaka, Hideyuki Miyata, Kazue Otsuka, Tadao Nakazawa, Terumi Chikama | 2003-06-24 |
| 6545784 | Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit | Kazue Okazaki, Hiroshi Onaka, Hideyuki Miyata, Terumi Chikama | 2003-04-08 |