Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7262905 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Hiromi Oohashi | 2007-08-28 |
| 7221500 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Hiromi Oohashi | 2007-05-22 |
| 7088501 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Hiromi Oohashi | 2006-08-08 |