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, Yutaka Kai, Tadao Nakazawa, Terumi Chikama | 2003-06-24 |
| 6538782 | Light branching/inserting apparatus and light branching apparatus using wavelength selection filter | Hiroshi Onaka, Terumi Chikama | 2003-03-25 |