Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7961769 | Wavelength tunable semiconductor laser device, controller for the same, and control method for the same | Naoki Fujiwara, Hiroyuki Ishii, Hiroshi Okamoto | 2011-06-14 |
| 7262905 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Yuichi Thomori | 2007-08-28 |
| 7221500 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Yuichi Thomori | 2007-05-22 |
| 7088501 | Optical amplifier | Yasuo Shibata, Nobuhiro Kikuchi, Yuichi Thomori | 2006-08-08 |
| 6728025 | Semiconductor optical amplifier characteristic evaluation method and apparatus | Katsuaki Magari, Toshio Ito, Hiroyuki Kamioka, Yasuhiro Suzuki | 2004-04-27 |